56700 Series. Available Enclosures: Series. Available Enclosures: IP 23, 56 & Series Series

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1 56 Mounting Face: NEMA 56C, TC and 5TC The 56,X00 have the following design features: Spring-Set Electrically Released Static Torque.5 through 5 lb-ft Adjustable Torque, down to 50% of rated nameplate torque Manual Wear Adjustment Airgap Adjust Gage Splined Hub Product Overview Designed for industrial applications requiring high performance in a compact lightweight package. Construction: Die cast aluminum endplate with stamped steel housing Available Enclosures: IP, 5 & 55 Release Type: External knob manual release with or without automatic reset Through Shaft Capability: Yes (IP only) IP, & 5 (formerly referred to by Stearns as NEMA type, & respectively) IP 55, 56, & 57 (formerly referred to by Stearns as NEMA Type X (BISSC Certified with epoxy coating and stainless steel hardware on exterior, or with a stainless steel enclosure) Universal mounting through 5 lb-ft. The 0 and 5 lb-ft are supplied with springs for vertical modification Specifications: Lead Wire Length: inches Maximum Speed: Horizontal 5000 rpm Vertical 600 rpm Coil Insulation: Standard Class B Optional Class H (56,800 Class H standard) Certified: CSA File LR-65 ABS Type Approval Certified Units designed for industrial applications that fit between a standard C-Face motor and gear reducer. Can also be used to retrofit installed units without braking capability. Construction: Die cast aluminum endplate and housing Available Enclosures: IP, 5, 55 & 56 Release Type: External knob release with automatic reset C-face brake has output shaft 5600 Designed for industrial applications requiring the protection of a heavy duty cast iron enclosure. Construction: Cast iron endplate and housing. Available Enclosures: IP 56 & 57 Release Type: External side lever release with automatic reset Through Shaft Capability: Yes Same as with 8TC / 8TC mounting. Construction: Cast iron endplate with stamped steel housing (Direct mount to 8TC / 8TC) Available Enclosures: IP, 5 & 55 Release Type: External knob manual release with or without automatic reset Through Shaft Capability: Yes (IP only) For use in severe environments found in process industries such as food, pulp and paper mills and chemical plants. Construction: Stainless steel Release Type: Side lever with automatic reset Available Enclosures: IP 56 & IP 57 Through Shaft Capability: with IP rating only Also Available Full die cast aluminum endplate and housing with internal release lever Available Enclosures: IP, 56 & Die cast aluminum endplate with stamped steel housing and external maintained release, IP 5600 Cast iron endplate with stamped steel housing and external knob release Available Enclosures: IP & Cast iron endplate and housing with internal release lever Available Enclosures: IP, 56 & 57 0

2 56,000; 56,00; 56,00; 56,00; 56,00; 56,500; 56,600; 56,700; and 56,900 Mounting Face: NEMA 56C, TC and 5TC Engineering Specifications Maximum Solenoid Cycle Rate: 6 cycles/min 0 cycles/min Thermal Capacity: Horizontal 9 hp-sec/min ( watts) Vertical 6.5 hp-sec/min (80 watts) Maximum solenoid cycle rate is based on ambient temperature of 7 F ( C) with 50% duty cycle. Does not relate to brake cycle rate (see Thermal Capacity). Thermal capacity rating is based on ambient temperature of 7 F ( C), stop time of one second or less, with no heat absorbed from motor. Refer to Selection Procedure Section. BK TO PRODUCT OVERVIEW Brake set and release times in milliseconds, when brake and motor are switched separately (for T/T definitions, see page 98): Static Torque lb-ft Coil Size T T.5-5, K, K+, M+ 5 56,000; 56,00; 56,00; 56,500; and 56,700 Nominal Static Torque lb-ft (Nm).5- (-) 6 (8) 0 () Number of Friction Discs Coil Size Inertia (WK ) K K + K+ K+ lb-ft (kgm x 0 - ).008 (.6).008 (.6).0 (5.88) 5 (0) K+ M+.0 (5.88) 0 (7) 5 () K+ M+ M+ P+.00 (8.0).00 (8.0) 56,00; 56,00; 56,600; and 56,900 Nominal Static Torque lb-ft (Nm) No. of Friction discs Coil Size Inertia (WK ) lb-ft (kgm x 0 - ) -6 (-8) +.0 (5.88) 0 () K K+.0 (5.88) 5 (0) K+ M+.0 (5.88) 0 (7) K+ M+.00 (8.0) 5 () M+ P+.00 (8.0) Ordering and Identification Information The following example and tables provide information for selecting the appropriate three-letter suffix when ordering a Stearns Brake. Example of a complete part number: BFF Lead wire position (internal and external, left and right) standard Torque Enclosure Hub Selection Character Bore (in.) 0 Vac 5/8 bore and /6 x / keyway Keyway (in. x in.) Current Ratings (amperes) Solenoid Coil Size Current 5 Inrush.6 Holding. + Inrush Holding K Inrush. Holding. K+ Inrush.6 Holding. M Inrush.0 Holding.6 M+ Inrush.6 Holding. P+ Inrush Holding Motor Frame Adapters: 56,000 through 56,600 WARNING! Before selecting an adapter to mount a brake on a larger motor frame, the torque and thermal capacity required by the application should be determined as shown in the Selection Procedure section. A larger motor may indicate a requirement for greater thermal capacity than the brake is designed for. The brake selection must be matched to the motor and application requirements, before use of an adapter is considered. To Adapt to NEMA Frame Size 8TC 8TC TC 5TC 5TC 56TC AK Dim. in. (mm) 8.50 (5.90) 8.50 (5.90) 8.50 (5.90) 8.50 (5.90) Voltage: 60 Hz Voltage: 50 Hz Voltage: Reg. No Brake Enclosure IP IP 5 IP IP 5 Brake Torque & Adapter Stock Number List $ List $ List $ List $ Additional Shaft Length Required in. (mm).9 (.8).9 (.8).9 (.8).9 (.8) 56,00 have NEMA enclosure. For adapter dimensions, see Technical Data Standard Voltage Ratings Character Voltage Hz B 5 60 D 0 50 E F H 0 50 L M 5 50 N O 0/0 50 P 5/ Q A B C D E F K L N O P R S Z 5/8 5/8 / 7/8 -/8 -/ / 9/6 /6 -/6 /6 5/ /60 90/80 /8 x /6 /6 x / /6 x / /6 x / / x /8 / x /8 /8 x /6 / x /8 /8 x /6 /6 x / / x /8 /6 x / / x /8 pilot bore Minimum bore is.500. Maximum allowable bore is.5. For through-shaft applications,.875 is maximum These bores are non-standard. Add $5.00 to list price. Keyseats made to ANSI B7. Standard Direct Current Character T U V W X Y Z R 00/00 60 Modifications are availablesee SAB Modification Section Voltage Consult factory if other voltage is needed. Voltages below 70V are polarity sensitive. Dimensional Drawings are on the pages following.

3 56,000 (-056-0XX-00) & 56, (-056-0XX-80) Mounting Face: NEMA 56C, TC and 5TC.5 AK, 5.88 AJ BK TO PRODUCT OVERVIEW 56,000 Pricing (Discount Symbol B) Dimensions for estimating only. For installation purposes request certified prints. Nominal Static Torque lb-ft (Nm).5 () () 6 (8) 0 () 5 (0) 0 (7) 5 () 56, Pricing (Discount Symbol B) Nominal Static Torque lb-ft (Nm) Enclosure Basic Model Number and List Price List Price List Price IP $ $70.00 IP IP IP IP IP IP IP IP ,05.00 IP IP , IP ,0.00 IP ,05.00 IP ,55.00 IP ,0.00 IP ,05.00 IP ,0.00 IP , ,5.00 IP ,00.00 IP , ,5.00 IP , ,0.00 Enclosure Basic Model Number and List Price List Price List Price.5 () IP $ $ () IP (8) IP () IP (0) IP , (7) IP , () IP ,70.00 Enclosure: Lightweight Steel Housing, Aluminum Endplate Enclosure Protection: IP, 5 & 55 (formerly referred to by Stearns as NEMA, & X respectively) (BISSC certified) Mounting: Fanguard mounted brakes requiring IP 5 or IP 55 protection may require additional sealing measures beyond seals provided with the brake. Refer to Installation & Service Instruction sheets. Installation and Service: P/N Parts List: P/N Modifications: Pages 5-60 IP Dimensions Nominal Static Torque lb-ft (Nm).5 () A Dimensions in Inches (Dimensions in Millimeters) AG C Hub Width G J Wt lbs (Kg) 8 (.6) () 8 (.6) 6 (8) (0.) (.) (0.6) (.) (7.9) 8 (.6) 0 () 8 (.6) 5 (0) 8 (.6) 0 (7) (.0) 5 () (.) (.) (0.0) (.) (7.9) 9 (.0) IP 5 / 55 Dimensions Nominal Static Torque lb-ft (Nm).5 () A Dimensions in Inches (Dimensions in Millimeters) AG C Hub Width G J Wt lbs (Kg) 8 (.6) () (0.) (.9) (0.6) (0.7) (9.) 8 (.6) 6 (8) 8 (.6) 0 () 9 (.0) 5 (0) (.0) 0 (7) (.6) (5.0) (0.0) (.) (9.) 9 (.0) 5 () 9 (.0) 56, includes a C-face gasket only, no hub seal. Subtract $0.00 for brake ordered less hub.

4 56,00 (-056-XX) Cast Iron & 56,900 (-056-9XX) Stainless Steel Mounting Face: NEMA 56C, TC and 5TC.5 AK, 5.88 AJ BK TO PRODUCT OVERVIEW Installation and Service: P/N Modifications: Pages ,00 : Heavy Duty Cast Iron Enclosure Parts List: P/N Enclosure: IP 56 & 57 (formerly referred to by Stearns as NEMA Type X, BISSC Certified) Mounting: Fanguard-mounted brakes requiring IP 56 or IP 57 protection may require additional sealing measures beyond seals provided with the brake - Refer to Installation & Service Instruction Sheets. Dimensions for estimating only. For installation purposes request certified prints. IP 56 / IP 57 Dimensions Nominal Static Torque lb-ft (Nm) () Dimensions in Inches (Dimensions in Millimeters) A AG C Hub Width G Wt lbs (Kg) 56,00 Wt lbs (Kg) 56,900 7 (7.7) 7 (7.7) 6 (8) 7 (7.7) 7 (7.7) 0 () (8.0) 7 (7.7) 5 (0) (.) (5.0) (0.0) (.) 8 (8.0) 7 (7.7) 0 (7) (9.5) (9.5) 5 () (9.5) (9.5) 56,900 : Stainless Steel Enclosure Parts List: P/N Enclosure Protection: IP 56 & 57 (formerly referred to by Stearns as NEMA Type X) Mounting: Fanguard-mounted brakes requiring IP 56 or IP 57 protection may require additional sealing measures beyond seals provided with the brake - Refer to Installation & Service Instruction Sheets. 56,900 Pricing (Discount Symbol B) Nominal Static Enclosure Torque lb-ft (Nm) Basic Model Number and List Price List Price List Price () IP $, $, (8) IP , , () IP , , (0) IP , , (7) IP , , () IP , , ,00 Pricing (Discount Symbol B) Nominal Static Enclosure Torque lb-ft (Nm) () 6 (8) 0 () 5 (0) 0 (7) 5 () Basic Model Number and List Price List Price List Price IP $, $, IP , ,75.00 IP , ,75.00 IP , , IP , ,80.00 IP , , IP , ,90.00 IP , , IP , , IP , , IP , ,00.00 IP , ,75.00 Subtract $0.00 for brake ordered less hub.

5 56,00 (-056-XX) Mounting Face: NEMA 56C, TC and 5TC,.5 AK, 5.88 AJ BK TO PRODUCT OVERVIEW 56,00 Enclosure: IP (formerly referred to by Stearns as NEMA ), Stamped steel housing, cast aluminum endplate Release Type: Lever, maintained Parts List: P/N Installation and Service: P/N ,00 Pricing (Discount Symbol B) Nominal Static Torque lb-ft (Nm) Basic Model Number and List Price List Price List Price.5 () $ $75.00 () (8) () (0) , (7) , () ,5.00 IP Dimensions Nominal Static Torque lb-ft (Nm).5 () Dimensions in Inches (Dimensions in Millimeters) A AG C Hub Width G Wt lbs (Kg) 8 (.6) () 8 (.6) 6 (8) (0.9) (5.0) (0.6) (0.7) 8 (.6) 0 () 8 (.6) 5 (0) 8 (.6) 0 (7) (.0) 5 () (.) (5.0) (0.0) (.) 9 (.0) Subtract $0.00 for brake ordered less hub. 56,00 (-056-XX) 56,00 : Stamped steel housing, cast iron endplate. Enclosure Protection: IP & 5 (formerly referred to by Stearns as NEMA & respectively) Release Type: Knob, maintained Mounting: Fanguard-mounted brakes requiring IP 5 protection may require additional sealing measures beyond seals provided with the brake - Refer to Installation & Service Instruction sheets Parts List: P/N Installation and Service: P/N ,00 Pricing (Discount Symbol B) Nominal Static Torque lb-ft (Nm) () 6 (8) 0 () 5 (0) 0 (7) 5 () Enclosure Basic Model Number and List Price List Price List Price IP IP , IP , IP ,0.00 IP ,05.00 IP ,5.00 IP ,05.00 IP , ,5.00 IP ,95.00 IP , ,0.00 IP , ,90.00 IP , ,55.00 IP Dimensions Nominal Static Torque lb-ft (Nm) () Dimensions in Inches (mm) A C Hub Width G Wt lbs (Kg) (5.0) 6 (8) (5.0) 0 () (5.0) (.) (0.0) (.) 5 (0) (5.5) 0 (7) (5.5) 5 () (6.0) IP 5 Dimensions Nominal Static Torque lb-ft (Nm) () Dimensions in Inches (mm) A C Hub Width G Wt lbs (Kg) (5.5) 6 (8) (5.5) 0 () (5.5) (.6) (0.0) (.) 5 (0) (6.0) 0 (7) (6.0) 5 () (6.0) Subtract $0.00 for brake ordered less hub.

6 56,00 (-056-XX) Die Cast Aluminum & 56,600 (-056-6XX) Cast Iron Mounting Face: NEMA 56C, TC and 5TC,.5 AK, 5.88 AJ BK TO PRODUCT OVERVIEW Release Type: Internal Lever, Non-Maintained Installation and Service: P/N Modifications: Pages 5-60 Enclosure Protection: IP ; 56 & 57 (formerly referred to by Stearns as NEMA, & X respectively) Visual Wear Indicator Mounting: Fanguard-mounted brakes requiring IP 56 or IP 57 protection may require additional sealing measures beyond seals provided with the brake - Refer to Installation & Service Instruction sheets 56,00 : Die Cast aluminum enclosure Parts List: P/N ,600 : Cast iron enclosure Parts List: P/N ,00 Dimensions 56,600 Dimensions Nominal Static Torque lb-ft (Nm).5-5 (-0) 0-5 (7-).5-6 (-8) 0-5 (-) Enclosure IP IP 56/57 Dimensions in Inches (mm) C Hub A AG G Width. (.0) (5.0) (.).50 (.).95 (5.7).7 (.9).59 (5.0).8 (0.6).8 (0.0).8 (0.6).8 (0.0). (0.7).66 (.). (0.7).66 (.) Wt lbs (Kg) 8 (.6) 0 (.5) 8 (.6) 0 (.5) Nominal Static Torque lb-ft (Nm) Enclosure -5 (-) IP -5 (-) IP 56/57 Dimensions in Inches (mm) C Hub A AG G Width.95 (5.7) (5.0) (8.).8 (0.0).66 (.) Wt lbs (Kg) (9.5) 56,00 Pricing (Discount Symbol B) 56,600 Pricing (Discount Symbol B) Nominal Static Torque lb-ft (Nm).5 () () 6 (8) 0 () 5 (0) 0 (7) 5 () Enclosure Basic Model Number and List Price List Price List Price IP $ $ IP IP ,05.00 IP IP IP ,05.00 IP IP ,05.00 IP ,00.00 IP IP ,0.00 IP ,05.00 IP , IP ,0.00 IP , ,05.00 IP ,80.00 IP , ,5.00 IP , ,90.00 IP ,75.00 IP , ,0.00 IP , ,85.00 Nominal Static Torque lb-ft (Nm) () 6 (8) 0 () 5 (0) 0 (7) 5 () Enclosure Basic Model Number and List Price List Price List Price IP , , IP , ,65.00 IP , ,70.00 IP , , IP , , IP , , IP , , IP , , IP , , IP , , IP , , IP , , IP , , IP , , IP , , IP , , IP , , IP , ,60.00 Subtract $0.00 for brake ordered less hub. 5

7 56,500 (-056-5XX) Mounting Face: NEMA 8TC and 8TC 8.5 AK, 7.5 AJ Enclosure Material: Stamped Steel Housing, Cast Iron Endplate Enclosure Protection: IP, 5 & 55 (formerly referred to by Stearns as NEMA, & X) BISSC Certified Release Type: Knob, Maintained with Automatic Reset Mounting: Fanguard-mounted brakes requiring IP 5 or IP 55 protection may require additional sealing measures beyond seals provided with the brake - Refer to Installation & Service Instruction sheets. Installation and Service: P/N Parts List: P/N Modifications: Pages 5-60 BK TO PRODUCT OVERVIEW Hub location. Dimensions for estimating only. For installation purposes request certified prints. IP Dimensions Nominal Static Torque lb-ft (Nm) 0 () Dimensions in Inches (Dimensions in Millimeters) A C Hub Width J Wt lbs (Kg) (6.) 5 (0).6.8. (6.) 0 (7) (.) (0.6) (7.9) (6.) 5 () 5 (6.8) IP 5 / 55 Dimensions Nominal Static Torque lb-ft (Nm) 0 () Dimensions in Inches (Dimensions in Millimeters) A C Hub Width J Wt lbs (Kg) (6.) 5 (0) (6.) 0 (7) (.6) (0.0) (9.) 5 (6.8) 5 () 5 (6.8) Unit Pricing (Discount Symbol B) Nominal Static Torque lb-ft (Nm) 0 () 5 (0) 0 (7) 5 () Enclosure Basic Model Number and List Price List Price List Price IP $ $,0.00 IP ,80.00 IP , ,55.00 IP ,0.00 IP , ,80.00 IP , ,55.00 IP , ,0.00 IP , ,65.00 IP , ,50.00 IP , ,5.00 IP , , IP , ,65.00 Subtract $0.00 for brake ordered less hub. 6

8 56,700 (-056-7XX) Die Cast Aluminum (-056-7XS) Stainless Steel Mounting Face: NEMA 56C, TC and 5TC.5 AK, 5.88 AJ Static Torque:.5 through 5 lb-ft Enclosure Material: IP, 5 & 55 Die Cast Aluminum; IP 56 Stainless Steel Release Type: Knob, Maintained with automatic reset Enclosure Protection: IP & 5 (formerly referred to by Stearns as NEMA Type & respectively). IP 55 & 56 (formerly referred to by Stearns as NEMA Type X BISSC Certified & Type X stainless steel enclosure, respectively). ABS Type Approval Certified Spring-Set Electrically Released Adjustable Torque Manual Release Knob, Maintained with Automatic Reset Manual Wear Adjustment Maximum Speed: 5000 rpm Horizontal 600 rpm Vertical Note: 56,700 mounts between C-Face motor and reducer. Do not apply overhung load to brake output shaft. Installation and Service: P/N Parts List: P/N Modifications: Pages 5-60 Universal Mounting: Through 5 lb-ft. 0 and 5 lb-ft. supplied with springs for vertical modification. Brake set and release times in milliseconds, when brake and motor are switched separately (for T/T definitions, see page 98) Static Torque lb-ft BK TO PRODUCT OVERVIEW Coil Size T T ½ - 5, K, K+, M+ 5 /8-6 mounting stud For X and U dimensions, see Ordering and Identification Information. Dimensions for estimating only. For installation purposes request certified prints. Dimensions /Unit Pricing (Discount Symbol E) Nominal Static Torque (lb-ft) (Nm).5 () () 6 (8) 0 () Enclosure Type IP IP 5 IP 55 IP IP 5 IP 55 Basic Model Number and List Price X X X X X X X X X X X X $80.00 $ $65.00 $95.00 $ $ $ $ $65.00 $95.00 $70.00 $,00.00 IP S-0X $,7.00 IP IP 5 IP X X X X X X $ $ $ $, $ $, IP S-0X $,59.00 IP IP 5 IP X X X X X X $ $ $ $,05.00 $ $,80.00 IP S-0X,69.00 Dimensions in Inches (mm) A J L.9 (.7).9 (5.5).9 (5.5).9 (.7).9 (5.5).9 (5.5).9 (5.5).9 (.7).9 (5.5).9 (5.5).9 (5.5).9 (.7).9 (5.5).9 (5.5).9 (5.5).8 (96.8).88 (98.6).88 (98.6).8 (96.8).88 (98.6).88 (98.6).88 (98.6).8 (96.8).88 (98.6).88 (98.6).88 (98.6).8 (96.8).88 (98.6).88 (98.6).88 (98.6).5 (8.9).5 (8.9).5 (8.9).5 (8.9).5 (8.9).5 (8.9).5 (8.9).5 (8.9).5 (8.9).5 (8.9).5 (8.9).5 (8.9).5 (8.9).5 (8.9).5 (8.9) Wt. lbs (kg) (5.) (5.9) (5.9) (5.) (5.9) (5.9) (0) (5.) (5.9) (5.9) (0) (5.) (5.9) (5.9) (0) Dimensions /Unit Pricing (Discount Symbol E) Nominal Static Torque (lb-ft) (Nm) 5 (0) 0 (7) 5 () Enclosure Type IP IP 5 IP 55 Basic Model Number and List Price X X X X X X $ $, $ $,05.00 $ $,80.00 IP S-0X,79.00 IP IP 5 IP $ $,55.00 $ $,90.00 $, $,65.00 IP S-0X,8.00 IP IP 5 IP $ $,50.00 $, $,85.00 $,60.00 $,60.00 IP S-0X,99.00 X in 9th digit designates hub bore and shaft size. Dimensions in Inches (mm) A J L.9 (.7).9 (5.5).9 (5.5).9 (5.5) 5.6 (6.) 5.9 (6.9) 5.9 (6.9) 5.9 (6.9) 5.6 (6.) 5.9 (6.9) 5.9 (6.9) 5.9 (6.9).8 (96.8).88 (98.6).88 (98.6).88 (98.6).8 (96.8).88 (98.6).88 (98.6).88 (98.6).8 (96.8).88 (98.6).88 (98.6).88 (98.6).5 (8.9).08 (7.).08 (7.).5 (8.9).08 (7.).08 (7.).08 (7.).08 (7.).08 (7.).08 (7.).08 (7.).08 (7.) Wt. lbs (kg) (5.) (5.9) (5.9) (0) (5.) (6.) (6.) (0) (5.9) (6.) (6.) (0)

9 56,700 Continued BK TO PRODUCT OVERVIEW Engineering Specifications Nominal Static Torque lb-ft (Nm).5 () () 6 (8) 0 () 5 (0) 0 (7) 5 () No. of Friction Discs Coil Size Maximum Solenoid Cycle Rate cycles/min K K- 6 0 K K+ 6 0 K+ M+ 6 0 K+ M+ 6 0 M+ P+ 6 0 Thermal Capacity Inertia (Wk ) hp-sec/min (watts) lb - ft Horizontal Vertical (kgm x 0 - ) () (80) (.6) () (80) (.6) () (80) (.6) () (80) (5.88) () (80) (5.88) () (80) (8.0) () (80) (8.0) Maximum solenoid cycle rate is based on ambient temperature of 7 F ( C) with 50% duty cycle. Does not relate to brake cycle rate (see Thermal Capacity). Thermal capacity rating is based on ambient temperature of 7 F ( C), stop time of one second or less, with no heat absorbed from motor. Refer to Selection Procedure Section. Current Ratings (amperes) Solenoid Coil Size + K K+ M M+ P+ Voltage: 60 Hz Voltage: 50 Hz Voltage: Current inrush holding inrush holding inrush holding inrush holding inrush holding inrush holding inrush holding.6. _ _.. _ _.8. _ _..08 _ _.9.08 _ _.7.06 _ _.. _ _.. _ Ordering and Identification Information The following example and tables provide information for selecting the appropriate three-letter suffix when ordering a Stearns Brake... _ _.0. _.9.08 _ _ _ _ _ _ Example of a complete part number: _ FF Lead wire position (internal and external, left and right) 0 Vac Torque Does not apply Enclosure 5/8 hub bore and shaft Hub Bore, Shaft and Keyway Sizes 9th Digit of Model No. Bore Dia. (X) Keyway Shaft Dia. (U) Keyway x x with sleeve to convert to.65.9 x.09.9 x with sleeve to convert to.875 One sleeve provided in each brake. Keyseats made to ANSI B7. standard..9 x.09.9 x.09 Standard Voltage Ratings Character Voltage Hz B 5 60 D 0 50 E F H 0 50 L M 5 50 N O 0/0 50 P 5/ Q / /80 R 00/00 60 Direct Current Character T U V W X Y Z Voltage Consult factory if other voltage is needed. Modifications are available- see SAB Modification Section

10 SELECTION - Solenoid Actuated Brakes BK TO PRODUCT OVERVIEW NOTE: For overhauling/high inertia loads, to stop in a specified time/distance, or for brakes combined with variable frequency drives, please refer to Application Engineering Section. Stearns Solenoid Actuated Brakes can be easily selected from Table and. Given motor data:. Horsepower (hp). Speed (RPM). NEMA C-face frame size Determine:. Static torque rating of the brake (lb-ft). Brake series Step Given the motor horsepower and speed, select the brake torque from Table. Torque in table is calculated using formula: T s = 5,5 x P x SF N Where, T s = Static torque, lb-ft P = Motor horsepower, hp N = Motor full load speed, rpm SF = Service Factor 5,5 = constant Example: Given a 5 hp, 800 RPM motor, the selected brake is 0 or 5 lb-ft. Step Given the NEMA C-face motor frame size, select the brake series from Table. Example: Given the 5 hp, 800 RPM motor in Step with a NEMA 8TC frame, 87,000; 87,00 or 87,700 Brakes can be selected to mount directly to the motor. Table Torque Selection In this table, brake torque ratings are no less than 0% of the motor full load torque. Motor hp /6 / / / / -/ 5 7-/ Brakemotor Shaft Speed (RPM) Static Torque Rating of Brake (lb-ft) or See catalog pages for maximum rpm by series. Thermal capacity must be considered in load stops over 800 rpm. Table Brake Selection by NEMA Frame Size Torque Range (lb-ft) 8C 56C TC 5TC 8TC 8TC TC 5TC C-Face Motor Frame Size 5TC 5UC 56TC 56UC 8TC 8UC 86TC 86UC Manually-Adjusted Brakes (require periodic adjustment to compensate for friction disc wear).5-6 8, ,X00 56,500 Self-Adjusting Brakes (automatically compensate for friction disc wear) ,X00 87,00 8,000 8,000 86,000 86,00 TC UC 6TC 6UC 6TC 6UC 65TC 65UC Division I Hazardous Location Brakes (for atmospheres containing explosive gases or ignitable dusts) / Motor Mounted Brake 65,00 87,00 8,00 Division l Hazardous Location Brakes (for atmospheres containing explosive gases or ignitable dusts) / Foot Mounted 87,00 8,00 Division Hazardous Location Brakes 56,800 87,800 56,700 87,700 Double C-Face Brake Couplers (for direct coupling a C-face motor to a C-face gear reducer) 0TC 0UC 05TC 05UC TC UC 5TC 5UC 50UC 50SC 505C 505SC Brake mounts directly to motor C-face. Adapter required to mount brake to motor C-face. Refer to brake specifications for adapter information. Brake endplate modified for direct mounting to motor C-face without an adapter. Brake is foot mounted for coupling to a hazardous-location motor. 8

11 Spring-Set Disc Brakes P/N effective 0/0/09 Installation and Service Instructions for -056-X00 (all revisions) Manual Adjust Brakes This sheet includes -056,000; -056,00; -056,00; -056,00; -056,00; -056,500; -056,600 and -056,900. For other series consult factory Typical Nameplate Important Please read these instructions carefully before installing, operating, or servicing your Stearns Brake. Failure to comply with these instructions could cause injury to personnel and/or damage to property if the brake is installed or operated incorrectly. For definition of limited warranty/liability, contact Rexnord Industries, LLC, Stearns Division, 550 S. International Dr., Cudahy, WI 50, () Caution. Installation and servicing must be made in compliance with all local safety codes including Occupational Safety and Health Act (OSHA). All wiring and electrical connections must comply with the National Electric Code (NEC) and local electric codes in effect.. Use of this brake in atmospheres containing explosive gases and dusts must be in accordance with NEC article 50. This brake is not suitable for use in certain atmospheres containing explosive gases and dusts. HazLoc inspection authorities are responsible for verifying and authorizing Tools required for installation and servicing: /8 hex wrench 5/6 nut driver 5/6 hex wrench / screwdriver /6 hex wrench 8 adjustable wrench the use of suitably designed and installed HazLoc equipment. When questions arise consult local Authority Having Jurisdiction (AHJ).. To prevent an electrical hazard, disconnect power source before working on the brake. If power disconnect point is out of sight, lock disconnect in the off position and tag to prevent accidental application of power.. Make certain power source conforms to the requirements specified on the brake nameplate. 5. Be careful when touching the exterior of an operating brake. Allow sufficient time for brake to cool before disassembly. Surfaces may be hot enough to be painful or cause injury. 6. Do not operate brake with housing removed. All moving parts should be guarded. 7. Installation and servicing should be performed only by qualified personnel familiar with the construction and operation of the brake. 8. For proper performance and operation, only genuine Stearns parts should be used for repairs and replacements. 9. After usage, the brake interior will contain burnt and degraded friction material dust. This dust must be removed before servicing or adjusting the brake. DO NOT BLOW OFF DUST using an air hose. It is important to avoid dispersing dust into the air or inhaling it, as this may be dangerous to your health. a) Wear a filtered mask or a respirator while removing dust from the inside of a brake. b) Use a vacuum cleaner or a soft brush to remove dust from the brake. When brush- BK TO PRODUCT PAGE For replacement parts refer to sheets: Sheet Part No Also available at ing, avoid causing the dust to become airborne. Collect the dust in a container, such as a bag, which can be sealed off. 0. Caution! While the brake is equipped with a manual release to allow manual shaft rotation, the motor should not be run with the manual release engaged, to avoid overheating the friction disc(s). General Description These series of brakes are spring-set, electrically released. They contain one or more rotating friction discs () driven by a hub (6) mounted on the motor or other shaft. Note: Fan-guard mounted brakes requiring IP5 & IP55 protection may require additional sealing measures beyond seals provided with this brake. Pressurized sprays aimed at the fan and brake hub surfaces can result in fluid migration along the motor shaft and keyway, and into the brake. The use of an appropriate sealant such as RTV or a forsheda seal is advised. Operating Principle These series contain one or more friction discs () assembled alternately between the endplate () friction surface, stationary disc(s) () and pressure plate (also called stationary disc) (). The stationary disc(s) are restrained from rotating by being keyed into the endplate. With the brake released, all disc pack components are free to slide axially and the friction disc(s) to rotate. Brake release occurs when the solenoid coil is electrically energized, causing the solenoid plunger to travel a specified distance and through a lever system, overcoming the pressure spring force. This action releases the clamping force on the disc pack, thereby allowing the friction disc(s) and brake hub to rotate. Brake sets and torque is produced when electric current to the solenoid coil is interrupted, thereby collapsing the solenoid magnetic field. The solenoid plunger returns to its original de-energized position allowing the lever arm to move forward by virtue of the compressed torque springs. This action compresses the disc pack components which applies a retarding torque to the brake hub and ultimately restores the brake to a spring-set static condition.

12 Place hub on motor shaft. BRAKE MOUNTING (Manual Adjust) -056-X00 Position hub on shaft as shown..88 (.77mm) BK TO PRODUCT PAGE Tighten set screws to motor shaft. Remove brake housing. Housings vary by series number. See page. Slide endplate over hub noting position of stabilizer clips, if used. (Refer to Friction Disc Replacement, view and A.) Tighten mounting screws. coils are 50/60 Hz, single phase rated. Power supply to coil must not have current or frequency limiting output that is less then the coil requirement. - Connect leadwires to power source. Verify voltage rating per nametag on coil. - Keep wiring away from pinch points and moving components. clockwise For vertical assembly of 0 & 5lb-ft brakes, refer to page. Replace brake housing and tighten to torque specified below: Brake series Torque lb-in lb-in For voltages see sheet Remove support plate screws and lift support from brake FRICTION DISC REPLEMENT SERIES -056-X00 Install new friction disc(s) and stationary disc(s) as shown. Note: Stabilizer clips should never be located over the set screws of the hub. counterclockwise counterclockwise Single disc brakes always use two stabilizer clips, locate at 90 from each other. Double disc brakes typically will not require stabilizer clips, however there are some special modifications that will use them. Remove and discard old friction disc. Rev A & B may have these clips may have these clips located per disc, and should never be positioned in line with each other. Rev C will have only one clip, used on the inner-most disc. No clip will be used on the outer-most disc. Three disc brakes will never use stabilizer clips on friction discs. Reposition support plate on endplate and tighten mounting screws to 55 lb-in. clockwise Note: Friction discs can wear to / their original thicknes, or.09

13 AIR GAP ADJUSTMENT -056-X00 BK TO PRODUCT PAGE As friction disc wear the air gap will increase. When plunger gets to the reset position, the air gap must be adjusted. To increase air gap, turn both adjusting screws (0) counterclockwise. Use To decrease air gap, turn both adjusting /6 hex wrench, or flat screwdriver on older models. screws (0) clockwise. 56,X00 Air Gap (REV A & B) Torque Disc Torque Min/Max.5, & & & clockwise 56,X00 Air Gap (REV C) Disc Torque Min/Max, 6, 0 & & /6 hex wrench counter-clockwise Maximum gap should not exceed.69 /6 hex wrench Remove housing and disconnect power and wiring to coil. Insert screwdriver between support plate and lever arm and pry forward. COIL REPLEMENT SERIES -056-X00 Lift plunger/solenoid lever assembly out of coil. Remove plunger guide. Discard coil. A) Insert new coil. (Lead wires in same position as old coil.) B) Insert plunger guide. A) Re-insert plunger into coil; drop pivot pin into cradle of support plate. B) Remove screwdriver. B A B A Reconnect coil and replace housing per installation instructions, page. Vertical Brake Assembly Single disc brakes are universal mount and do not require separator springs. Double disc brakes are universal mount but require separator springs which are preassembled to the stationary disc. These discs are inserted spring first into the brake. Refer to figure 5A below. VERTICAL SPRING ASSEMBLY -056-X00 Figure 5A Installation Procedure for 0 and 5 lb-ft brakes if mounted vertical to motor shaft (These brakes are factory assembled for horizontal operation.) Remove support plate by loosening the three mounting screws. Remove stationary discs and friction discs. Using the spring kit provided with this brake, insert three springs of identical color into each stationary disc hole. Springs are inserted from the side opposite the indent mark (see Figure 5B). Stationary disc should be placed on a clean flat surface with a clearance hole to allow the tip of the spring to extend through the bottom side of the stationary plate. Using the /8 pin provided and a hammer, drive the spring until the large coil diameter bottoms out against the disc. Reassemble the disc pack with the stationary discs in the proper arrangement shown in Figure 5C. Mount support plate and torque screws evenly to 55 lb-in. Figure 5B Figure 5C

14 Torque Adjustment Brake is factory set for nominal rated static torque which is maximum torque. Torque may be decreased up to 50% for increased stopping times up to second stop time. The torque on the -/ lb-ft brake may not be reduced. Turn both spring adjustment screws (), Figure 6, equal amounts counterclockwise to decrease torque. See Table A for torque reduction permissible amounts. TORQUE ADJUSTMENT 0 0 Figure 6 TABLE A BK TO PRODUCT PAGE Nominal Original Maximum % Torque Static Spring Counter- Reduction Torque Height clockwise per (lb-ft) (inches) Turns Turn -/ / 9% TROUBLESHOOTING COIL FAILURE EXCESSIVE WEAR / OVERHEATING SUPPLY VOLTAGE CAUSE SUPPLY VOLTAGE CORRECTION AIR GAP CAUSE AIR GAP CORRECTION Low solenoid air gap Reset air gap (refer to Air Gap Line voltage >0% of coil rating Reduce voltage or replace with Adjustment) proper rated coil Disc pack dragging Inspect endplate, hub and discs for input on a coil Replace rectifier or replace with dirt, burrs, wiring and other sources proper rated coil. of interference preventing disc float CYCLE RATE CAUSE CYCLE RATE CORRECTION Excessive voltage drop during inrush time WIRING CAUSE Leadwires interfering with plunger pull-in Excessive voltage drop during inrush time Coil leadwire shorted to ground SOLENOID ASSEMBLY CAUSE Plunger not seating flush against solenoid frame Plunger cocked in coil preventing pull-in Excessive solenoid/plunger wear at mating surface Broken shading coils WORN PARTS CAUSE Excessive wear of solenoid link arm and/or shoulder bolt Plunger guides worn down and interfering with plunger movement APPLICATION CAUSE Machinery cycle rate is exceeding brake rating High ambient temperature (>0%) and thermal load exceeding coil insulation rating Brake coil wired with windings of an Inverter motor or other voltage/current limiting device MISCELLANEOUS CAUSE Increase current rating of power supply. WIRING CORRECTION Reroute wiring away from plunger and other moving components. Increase leadwires size from power supply Replace coil or leadwire and protect with wire sleeving SOLENOID ASSEMBLY CORRECTION Loosen solenoid mounting screws and reposition frame to allow full face contact Realign solenoid frame Replace solenoid assembly Replace solenoid assembly WORN PARTS CORRECTION Replace link arm and link bolt; also inspect plunger thru-hole for elongation Replace guides APPLICATION CORRECTION Reduce brake cycle rate or use alternate control method Use Class H rated coil and /or find alternate method of cooling brake Wire coil to dedicated power source with instantaneous coil rated voltage MISCELLANEOUS CORRECTION Replace with proper spring or refer Wrong or over tightened torque to Installation section for proper spring height Excessive air gap Reset, refer to Installation Section Brake jogging exceeding coil cycle rate Thermal capacity is being exceeded ALIGNMENT CAUSE Broke endplate not concentric to motor C-Face Motor shaft runout is excessive Brake is being operated on a incline greater than 5 above or below horizontal WORN PARTS CAUSE Friction disc excessively worn (disc can wear to / original thickness or.09 ) Reduce cycle rate or consider alternate control method Reduce cycle rate, use alternate control method or increase brake size ALIGNMENT CORRECTION Motor register must be within.00 on concentricity. Must be within.00 ; runout; consult motor manufacturer Vertical separator springs must be used to prevent discs from becoming cocked WORN PARTS CORRECTION Replace friction discs. Endplate, stationary disc or Replace warped or worn component pressure plate warped Linkages and/or pivot pins worn Replace all worn components Motor shaft endfloat excessive Endfloat must not exceed.00 ; consult motor manufacturer HUB CAUSE HUB CORRECTION Burr on hub interfering with disc File off burr float Set screw backed out and interfering with disc MISCELLANEOUS Solenoid plunger not pulling completely Wiring is restricting disc pack movement Excessive stop time ( seconds or greater) High Ambient temperature (in excess of 0 F) Retighten set screw; use Loctite to help secure MISCELLANEOUS Check line voltage (±0% of nameplate rating) or replace worn solenoid assembly Reroute wiring Increase brake size/torque or use alternate control method Reduce cycle rate or use alternate method of cooling Rexnord Industries, LLC, Stearns Division, 550 S. International Dr., Cudahy, WI 50, () 7-00 Fax: ()

15 BK TO PRODUCT PAGE Spring-Set Disc Brakes P/N effective 0/0/09 Installation and Service Instructions for (rev. A & B) Double C-Face Coupler For replacement parts refer to sheet part number Instructions and parts list also available at Figure Typical Nameplate Important Please read these instructions carefully before installing, operating, or servicing your Stearns Brake. Failure to comply with these instructions could cause injury to personnel and/or damage to property if the brake is installed or operated incorrectly. For definition of limited warranty/ liability, contact Rexnord Industries, LLC, Stearns Division, 550 S. International Dr., Cudahy, WI 50, () Caution. Installation and servicing must be made in compliance with all local safety codes including Occupational Safety and Health Act (OSHA). All wiring and electrical connections must comply with the National Electric Code (NEC) and local electric codes in effect.. Use of this brake in atmospheres containing explosive gases and dusts must be in accordance with NEC article 50. This brake is not suitable for use in certain atmospheres containing explosive gases and dusts. HazLoc inspection authorities are responsible for verifying and authorizing the use of suitably designed and Tools required for installation and servicing: /8 hex wrench 5/6 nut driver 5/6 hex wrench / screwdriver /6 hex wrench 8 adjustable wrench installed HazLoc equipment. When questions arise consult local Authority Having Jurisdiction (AHJ).. To prevent an electrical hazard, disconnect power source before working on the brake. If power disconnect point is out of sight, lock disconnect in the off position and tag to prevent accidental application of power.. Make certain power source conforms to the requirements specified on the brake nameplate. 5. Be careful when touching the exterior of an operating brake. Allow sufficient time for brake to cool before disassembly. Surfaces may be hot enough to be painful or cause injury. 6. Do not operate brake with housing removed. All moving parts should be guarded. 7. Installation and servicing should be performed only by qualified personnel familiar with the construction and operation of the brake. 8. For proper performance and operation, only genuine Stearns parts should be used for repairs and replacements. 9. After usage, the brake interior will contain burnt and degraded friction material dust. This dust must be removed before servicing or adjusting the brake. DO NOT BLOW OFF DUST using an air hose. It is important to avoid dispersing dust into the air or inhaling it, as this may be dangerous to your health. a) Wear a filtered mask or a respirator while removing dust from the inside of a brake. b) Use a vacuum cleaner or a soft brush to remove dust from the brake. When brushing, avoid causing the dust to become airborne. Collect the dust in a container, such as a bag, which can be sealed off. 0. Caution! While the brake is equipped with a manual release to allow manual shaft rotation, the motor should not be run with the manual release engaged, to avoid overheating the friction disc(s).. Do not apply overhung or side load to brake output shaft. General Description The 56,700 coupler is a spring-set, electronically released brake, containing either one or more rotating friction discs () driven by a hub (6) mounted on the motor shaft. The double C-face allows the brake to directly couple a C-face motor to a C-face gear reducer. Note: Fan-guard mounted brakes requiring IP5 & IP55 protection may require additional sealing measures beyond seals provided with this brake. Pressurized sprays aimed at the fan and brake hub surfaces can result in fluid migration along the motor shaft and keyway, and into the brake. The use of an appropriate sealant such as RTV or a forsheda seal is advised. Operating Principle Warning! Do not apply overhung or die load to brake output shaft. These series contain one or more friction discs () assembled alternately between the endplate () friction surface, stationary disc(s) () and pressure plate (also called stationary disc) (). The stationary disc(s) are restrained from rotating by being keyed into the endplate. With the brake released, all disc pack components are free to slide axially and the friction disc(s) to rotate. Brake release occurs when the solenoid coil is electrically energized, causing the solenoid plunger to travel a specified distance and through a lever system, overcoming the pressure spring force. This action releases the clamping force on the disc pack, thereby allowing the friction disc(s) and brake hub to rotate. Brake sets and torque is produced when electric current to the solenoid coil is interrupted, thereby collapsing the solenoid magnetic field. The solenoid plunger returns to its original de-energized position allowing the lever arm to move forward by virtue of the compressed torque springs. This action compresses the disc pack components which applies a retarding torque to the brake hub and ultimately restores the brake to a spring-set static condition.

16 Place hub on motor shaft. BRAKE MOUNTING (Manual Adjust) Position hub on shaft as shown..88 (.77mm) BK TO PRODUCT PAGE Tighten set screws to motor shaft. A. Remove housing nuts and slide tie bolt out of brake. B. Remove housing from endplate. Slide endplate over hub noting position of stabilizer clips, if used. (Refer to Friction Disc Replacement view and A). Mount brake endplate to motor C-face using the four tie bolts. Insert minimum turns. Connect coil leadwires to power supply. Refer to nameplate for voltage rating. Caution: Keep wiring away from pinch points and moving components. For vertical assembly of 0 & 5 lb-ft brakes refer to page. A. Slide housing and shaft assembly onto mounting studs, rotating shaft until keyway is aligned. Be sure housing is assembled with access windows in same position as shown in Figure, page. B. Mount and secure brake/motor assembly to C-face mounting register of reducer. Using four /8-6 nuts and lockwashers, tighten to 0-5 ft-lb. For voltages see sheet clockwise Remove support plate screws and lift support from brake FRICTION DISC REPLEMENT SERIES Remove and discard old friction disc. Install new friction disc(s) and stationary disc(s) as shown. counterclockwise For brakes with vertical sprngs see Figure 5A or 5C. A Stabilizer clips are for use on single disc units only. Position clips opposite set screw holes. Reposition support plate on endplate and tighten mounting screws to 55 lb-in. clockwise Note: Friction discs can wear to / their original thicknes, or.09

17 As friction disc wear the air gap will increase. When plunger gets to the reset position, the air gap must be adjusted. To increase air gap, turn both adjusting To decrease air gap, turn both adjusting screws (0) counterclockwise. screws (0) clockwise. Air Gap Settings Torque (lb-ft) 56,X00.5, & & & For reference only AIR GAP ADJUSTMENT clockwise BK TO PRODUCT PAGE counter-clockwise Maximum gap should never exceed.69. Note: Air gap can be adjusted witout disassembly. Remove 7A cover plate (7A) and manual release plate (7B) and adjust as shown above. 7B Remove housing and disconnect power and wiring to coil. Insert screwdriver between support plate and lever arm and pry forward. COIL REPLEMENT SERIES Lift plunger/solenoid lever assembly out of coil. Remove plunger guide. Discard coil. A) Insert new coil. (Lead wires in same position as old coil.) B) Insert plunger guide. B A) Re-insert plunger into coil; drop pivot pin into cradle of support plate. B) Remove screwdriver. A B A Reconnect coil and replace housing per installation instructions, page. Vertical Brake Assembly Single disc brakes (.5, & 6 lb-ft) are universal mount and do not require separator springs. Double disc brakes (0-5 lb-ft.) are universal mount but require separator springs which are preassembled to the stationary disc. These discs are inserted spring first into the brake. Refer to figure A below. VERTICAL SPRING ASSEMBLY Figure A Installation Procedure for 0 and 5 lb-ft brakes if mounted vertical to motor shaft (These brakes are factory assembled for horizontal operation.) Remove support plate by loosening the three mounting screws. Remove stationary discs and friction discs. Using the spring kit provided with this brake, insert three springs of identical color into each stationary disc hole. Springs are inserted from the side opposite the indent mark (see Figure B). Stationary disc should be placed on a clean flat surface with a clearance hole to allow the tip of the spring to extend through the bottom side of the stationary plate. Using the /8 pin provided and a hammer, drive the spring until the large coil diameter bottoms out against the disc. Reassemble the disc pack with the stationary discs in the proper arrangement shown in Figure C. Mount support plate and torque screws evenly to 55 lb-in. Figure B Figure C

18 Torque Adjustment Brake is factory set for nominal rated static torque which is maximum torque. Torque may be decreased up to 50% for increased stopping times up to second stop time. The torque on the -/ lb-ft brake may not be reduced. Turn both spring adjustment screws (), Figure, equal amounts counterclockwise to decrease torque. See Table A for torque reduction permissible amounts. TORQUE ADJUSTMENT 0 0 Figure TABLE A BK TO PRODUCT PAGE Nominal Original Maximum % Torque Static Spring Counter- Reduction Torque Height clockwise per (lb-ft) (inches) Turns Turn -/ / 9% TROUBLESHOOTING COIL FAILURE EXCESSIVE WEAR / OVERHEATING SUPPLY VOLTAGE CAUSE SUPPLY VOLTAGE CORRECTION AIR GAP CAUSE AIR GAP CORRECTION Low solenoid air gap Reset air gap (refer to Air Gap Line voltage >0% of coil rating Reduce voltage or replace with Adjustment) proper rated coil Disc pack dragging Inspect endplate, hub and discs for input on a coil Replace rectifier or replace with dirt, burrs, wiring and other sources proper rated coil. of interference preventing disc float CYCLE RATE CAUSE CYCLE RATE CORRECTION Excessive voltage drop during inrush time WIRING CAUSE Leadwires interfering with plunger pull-in Excessive voltage drop during inrush time Coil leadwire shorted to ground SOLENOID ASSEMBLY CAUSE Plunger not seating flush against solenoid frame Plunger cocked in coil preventing pull-in Excessive solenoid/plunger wear at mating surface Broken shading coils WORN PARTS CAUSE Excessive wear of solenoid link arm and/or shoulder bolt Plunger guides worn down and interfering with plunger movement APPLICATION CAUSE Machinery cycle rate is exceeding brake rating High ambient temperature (>0%) and thermal load exceeding coil insulation rating Brake coil wired with windings of an Inverter motor or other voltage/current limiting device MISCELLANEOUS CAUSE Increase current rating of power supply. WIRING CORRECTION Reroute wiring away from plunger and other moving components. Increase leadwires size from power supply Replace coil or leadwire and protect with wire sleeving SOLENOID ASSEMBLY CORRECTION Loosen solenoid mounting screws and reposition frame to allow full face contact Realign solenoid frame Replace solenoid assembly Replace solenoid assembly WORN PARTS CORRECTION Replace link arm and link bolt; also inspect plunger thru-hole for elongation Replace guides APPLICATION CORRECTION Reduce brake cycle rate or use alternate control method Use Class H rated coil and /or find alternate method of cooling brake Wire coil to dedicated power source with instantaneous coil rated voltage MISCELLANEOUS CORRECTION Replace with proper spring or refer Wrong or over tightened torque to Installation section for proper spring height Excessive air gap Reset, refer to Installation Section Brake jogging exceeding coil cycle rate Thermal capacity is being exceeded ALIGNMENT CAUSE Broke endplate not concentric to motor C-Face Motor shaft runout is excessive Brake is being operated on a incline greater than 5 above or below horizontal WORN PARTS CAUSE Friction disc excessively worn (disc can wear to / original thickness or.09 ) Endplate, stationary disc or pressure plate warped Linkages and/or pivot pins worn Motor shaft endfloat excessive HUB CAUSE Burr on hub interfering with disc float Set screw backed out and interfering with disc MISCELLANEOUS Solenoid plunger not pulling completely Wiring is restricting disc pack movement Excessive stop time ( seconds or greater) High Ambient temperature (in excess of 0 F) Reduce cycle rate or consider alternate control method Reduce cycle rate, use alternate control method or increase brake size ALIGNMENT CORRECTION Motor register must be within.00 on concentricity; Must be within.00 ; runout; consult motor manufacturer Vertical separator springs must be used to prevent discs from becoming cocked WORN PARTS CORRECTION Replace friction discs. Replace warped or worn component Replace all worn components Endfloat must not exceed.00 ; consult motor manufacturer HUB CORRECTION File off burr Retighten set screw; use Loctite to help secure MISCELLANEOUS Check line voltage (±0% of nameplate rating) or replace worn solenoid assembly Reroute wiring Rexnord Industries, LLC, Stearns Division, 550 S. International Dr., Cudahy, WI 50, () 7-00 Fax: () Increase brake size/torque or use alternate control method Reduce cycle rate or use alternate method of cooling

19 BK TO PRODUCT PAGE Spring-Set Disc Brakes Parts List for (rev. A & B) Manual Adjust Brakes P/N effective 0//08 For Installation and Service Instructions refer to sheet part number Instructions and parts list also available at Tools required for installation and servicing: /8 hex wrench 5/6 nut driver 5/6 hex wrench / screwdriver /6 hex wrench 8 adjustable wrench Typical Nameplate Important Please read these instructions carefully before installing, operating, or servicing your Stearns Brake. Failure to comply with these instructions could cause injury to personnel and/or damage to property if the brake is installed or operated incorrectly. For definition of limited warranty/liability, contact Rexnord Industries, Inc., Stearns Division, 550 S. International Dr., Cudahy, WI 50, () Caution. Installation and servicing must be made in compliance with all local safety codes including Occupational Safety and Health Act (OSHA). All wiring and electrical connections must comply with the National Electric Code (NEC) and local electric codes in effect.. Do not operate the brake in atmospheres containing explosive gases or dusts.. To prevent an electrical hazard, disconnect power source before working on the brake. If power disconnect point is out of sight, lock disconnect in the off position and tag to prevent accidental application of power.. Make certain power source conforms to the requirements specified on the brake nameplate. 5. Be careful when touching the exterior of an operating brake. Allow sufficient time for brake to cool before disassembly. Surfaces may be hot enough to be painful or cause injury. 6. Do not operate brake with housing removed. All moving parts should be guarded. 7. Installation and servicing should be performed only by qualified personnel familiar with the construction and operation of the brake. 8. For proper performance and operation, only genuine Stearns parts should be used for repairs and replacements. 9. After usage, the brake interior will contain burnt and degraded friction material dust. This dust must be removed before servicing or adjusting the brake. DO NOT BLOW OFF DUST using an air hose. It is important to avoid dispersing dust into the air or inhaling it, as this may be dangerous to your health. a) Wear a filtered mask or a respirator while removing dust from the inside of a brake. b) Use a vacuum cleaner or a soft brush to remove dust from the brake. When brushing, avoid causing the dust to become airborne. Collect the dust in a container, such as a bag, which can be sealed off.

20 BK TO PRODUCT PAGE Information required when ordering replacement parts: Give part number of parts or kits needed, brake model number, and brake serial number. The brake model and serial number may identify special brakes not covered by this parts list When ordering hubs, specify shaft diameter (hub bore) and keyway. Enclosure is specified as follows: NEMA (formerly referred to as standard) NEMA (formerly referred to as DTWP dust-tight waterproof) NEMA X (formerly referred to as BISSC washdown) A A Torque (lb-ft).5 and NEMA Enclosure 0 and 5 X X X X X TABLE Components of Standard or Brake Item A AA 7 A B Not Shown C DP Description Hardware kit - NEMA Hardware kit - NEMA Hardware kit - NEMA X Plug/Gasket kit NEMA Close couple NEMA X NEMA disc NEMA X disc Housing & release knob kit NEMA Housing & release knob kit NEMA Housing & release knob kit NEMA X Stationary disc kit ( disc universal disc horizontal) Stationary disc kit ( disc universal) Stationary disc kit ( disc universal) Vertical Spring Kit ( disc) Friction disc kit Stabilizing clip (part of ) Disc pack kit disc Disc pack kit disc Disc pack kit disc Brake Model Number Part Number & & & Not Shown Release knob kit Hub and set screw assembly & disc (NEMA ) Hub and set screw assembly disc (NEMA & X) Hub and set screw assembly disc (NEMA ) and & disc (NEMA & X) 5/8 bore 7/8 bore -/8 bore 5/8 bore 7/8 bore -/8 bore 5/8 bore 7/8 bore -/8 bore & & B D E B D E B D E & disc (NEMA ) disc (NEMA ) Endplate and disc (NEMA ) stationary disc & disc (NEMA ) assembly disc (NEMA X) & disc (NEMA X) Certain multiple friction disc model numbers require a single stabilizer clip (D) added to each friction disc. If your brake has these clips, they must be replaced when the friction disc is replaced. This clip is included as part of the friction disc kit Close coupled brakes identified by 8 in the 8th digit. example: -056-XXX-8X &

21 BK TO PRODUCT PAGE TABLE Components of Support Plate and Coil Assembly 6 8 8R 8W N 0 Torque (lb-ft).5 & NEMA Enclosure Support Plate Assy. (Items 6 through and Z) Item Description Part Number Bearing Solenoid lever Retaining ring Spacer W 7 6 9A 6 S Torque adjustment nut Wear adjustment screw Pressure spring Pressure spring Pressure spring Spring washer Lever arm and stop nut assy. Bearing pin Plunger stop Support plate and spring stud assembly ( housing studs) Support plate and spring stud assembly ( housing studs) Pivot pin Mounting screws Brakes Z No. solenoid kit (rev A & B) (rev B) 5/0 Vac 0/60 Vac No. 5 Vac coil kit 0 Vac 60 Hz 60 Vac 5/0 Vac 0/60 Vac No. K 5 Vac coil kit 0 Vac 60 Hz 60 Vac 5/0 Vac 0/60 Vac No. K+ 5 Vac coil kit 0 Vac 60 Hz 60 Vac 5/0 Vac 0/60 Vac No. M+ 5 Vac coil kit 0 Vac 60 Hz 60 Vac Brake release interlock switch CC (optional) Brakes AD BD No. + coil assembly No. K + coil assembly No. M + coil assembly No. P + coil assembly Electronic switch kit 5 Vdc 0 Vdc 5 Vdc 0 Vdc 5 Vdc 0 Vdc 5 Vdc 0 Vdc /8 Vdc 5 Vdc 0 Vdc X X X X X X

22 Optional Modification Kits BK TO PRODUCT PAGE Torque (lb-ft).5, & 6 0 & 5 0 & 5 TABLE Contents of Kits and Assemblies TABLE Catalog Mod Number Description Brake Model Number Part Number X X X X X X X M Brass Stationary Disc Item A 7 A B DP 6 Z AD BD CC Kit Description Hardware kit NEMA ( ) Housing acorn nuts Conduit plugs Hardware kit NEMA ( ) Hardware kit NEMA X ( ) Housing nuts Housing nut gaskets Endplate oil seal Endplate hole plugs Housing to endplate U gasket Endplate conduit pipe plugs Housing & release knob kit ( X-00) Housing and release knob assembly or Housing nuts Housing nut gasket (NEMA and X) Stationary disc kit ( ) Stationary disc Stationary disc kit ( ) Stationary discs with springs Stationary disc kit ( ) Stationary discs with springs Friction disc kit ( ) Friction disc Stabilizing clips Disc pack kit ( X-00), or Friction disc(s), or Stationary disc(s) Stabilizing clips ( only), 6 or 9 Stationary disc separator springs Hub and screw assembly all types, all bores (5-6-55X-00) Brake hub Set screws No. solenoid kit ( ) ( ) Plunger Solenoid link Frame (including mounting bracket) Solenoid link cap screw Solenoid link nut Solenoid mounting screws No. coil kit ( XX-X) and coil assembly (5-96-6XX-X) Coil / Top Plunger guide / Wire nut switch kit ( X-5) Electronic switch Mounting bracket Bracket mounting screws Switch moutning screws Nuts Lock washers 5 Crimp connectors Brake release interlock switch ( ) Microswitch Mounting bracket Bracket mounting screws Switch mounting screws Lock washers Nuts Lead wire assembly M Catalog Mod Number M6 Space Heater 5 Vac 0 Vac No. Class H coil kit 60 Hz No. K Class H coil kit 60 Hz No. K+ Class H coil kit 60 Hz No. M+ Class H coil kit 60 Hz Description 5/0 Vac 0/60 Vac 5 Vac 0 Vac 60 Vac 5/0 Vac 0/60 Vac 5 Vac 0 Vac 60 Vac 5/0 Vac 0/60 Vac 5 Vac 0 Vac 60 Vac 5/0 Vac 0/60 Vac 5 Vac 0 Vac 60 Vac M7 Terminal Strip M Vertical Spring Kit ( disc) ( disc) Torque (lb-ft) Brake Model Number Part Number & & Rexnord Industries, LLC Stearns Division 550 S. International Drive Cudahy, Wisconsin 50 () 7-00 Fax: () & Copyright by Rexnord Industries, LLC

23 BK TO PRODUCT PAGE Spring-Set Disc Brakes Parts List for (rev. A & B) Manual Adjust Brakes P/N effective 0//08 For Installation and Service Instructions refer to sheet part number Instructions and parts list also available at Tools required for installation and servicing: /8 hex wrench 5/6 nut driver 5/6 hex wrench / screwdriver /6 hex wrench 8 adjustable wrench Typical Nameplate IMPORTANT Please read these instructions carefully before installing, operating, or servicing your Stearns Brake. Failure to comply with these instructions could cause injury to personnel and/or damage to property if the brake is installed or operated incorrectly. For definition of limited warranty/liability, contact Rexnord Industries, LLC, Stearns Division, 550 S. International Dr., Cudahy, WI 50, () Caution. Installation and servicing must be made in compliance with all local safety codes including Occupational Safety and Health Act (OSHA). All wiring and electrical connections must comply with the National Electric Code (NEC) and local electric codes in effect.. Do not operate the brake in atmospheres containing explosive gases or dusts.. To prevent an electrical hazard, disconnect power source before working on the brake. If power disconnect point is out of sight, lock disconnect in the off position and tag to prevent accidental application of power.. Make certain power source conforms to the requirements specified on the brake nameplate. 5. Be careful when touching the exterior of an operating brake. Allow sufficient time for brake to cool before disassembly. Surfaces may be hot enough to be painful or cause injury. 6. Do not operate brake with housing removed. All moving parts should be guarded. 7. Installation and servicing should be performed only by qualified personnel familiar with the construction and operation of the brake. 8. For proper performance and operation, only genuine Stearns parts should be used for repairs and replacements. 9. After usage, the brake interior will contain burnt and degraded friction material dust. This dust must be removed before servicing or adjusting the brake. DO NOT BLOW OFF DUST using an air hose. It is important to avoid dispersing dust into the air or inhaling it, as this may be dangerous to your health. a) Wear a filtered mask or a respirator while removing dust from the inside of a brake. b) Use a vacuum cleaner or a soft brush to remove dust from the brake. When brushing, avoid causing the dust to become airborne. Collect the dust in a container, such as a bag, which can be sealed off.

24 Information required when ordering replacement parts: Give Part Number of parts or kits needed, Brake Model Number, and Brake Serial Number. The Brake Model and Serial Number may identify special brakes not covered by this parts list. When ordering hubs, specify shaft diameter (hub bore) and keyway. Enclosure is specified as follows: NEMA (formerly referred to as standard) NEMA (formerly referred to as DTWP dust-tight waterproof) NEMA X (formerly referred to as BISSC washdown) Support Plate Assembly BK TO PRODUCT PAGE 7 (NEMA ) A (NEMA & X) AA (A & B) A (NEMA & X 7 (NEMA & X) C 6 A AA Solenoid and Coil Assembly Torque (lb-ft).5 and & 5 NEMA Enclosure X X X X X TABLE Components of Standard or Brake Brake Model Number Item Description Part Number A AA 7 A B Not Shown C DP 6 Hardware kit - NEMA Hardware kit - NEMA Hardware kit - NEMA X Plug/Gasket kit NEMA Close couple NEMA X NEMA disc NEMA X disc Housing NEMA Housing NEMA Housing NEMA X Stationary disc kit ( disc universal disc horizontal) Stationary disc kit ( disc universal) Stationary disc kit ( disc horizontal) Vertical Spring Kit ( disc) Friction disc kit Stabilizing clip (part of ) Disc pack kit disc Disc pack kit disc Disc pack kit disc Hub and set screw assembly & disc (NEMA ) Hub and set screw assembly disc (NEMA & X) Hub and set screw assembly disc (NEMA ) and & disc (NEMA & X) Endplate and stationary disc assembly & disc (NEMA ) disc (NEMA ) disc (NEMA ) & disc (NEMA ) disc (NEMA X) & disc (NEMA X) 5/8 bore 7/8 bore -/8 bore 5/8 bore 7/8 bore -/8 bore 5/8 bore 7/8 bore -/8 bore & & & B D E B D E B D E Certain multiple friction disc model numbers require a single stabilizer clip (D) added to each friction disc. If your brake has these clips, they must be replaced when the friction disc is replaced. This clip is included as part of the friction disc kit Close coupled brakes identified by 8 in the 8th digit. example: -056-XXX-8X & & & -6-00

25 BK TO PRODUCT PAGE TABLE Components of Support Plate and Coil Assembly 6 8 8R 8W N 0 Torque (lb-ft).5 & NEMA Enclosure Support Plate Assy. (Items 6 through and Z) Item Description Part Number Bearing Solenoid lever Retaining ring Spacer Torque adjustment nut Wear adjustment screw Pressure spring Pressure spring Pressure spring Spring washer Lever arm and stop nut assy. Bearing pin Plunger stop X X X X X X W 7 6 9A 8 Release Indicator Release spring Support plate and spring stud assembly ( housing studs) Support plate and spring stud assembly ( housing studs) S Pivot pin Mounting screws Brakes Z No. solenoid kit (rev A & B) (rev B only) 5/0 Vac 0/60 Vac No. 5 Vac coil kit 0 Vac 60 Hz 60 Vac 5/0 Vac 0/60 Vac No. K 5 Vac coil kit 0 Vac 60 Hz 60 Vac 5/0 Vac 0/60 Vac No. K+ 5 Vac coil kit 0 Vac 60 Hz 60 Vac 5/0 Vac 0/60 Vac No. M+ 5 Vac coil kit 0 Vac 60 Hz 60 Vac Brake release interlock switch CC (optional) Brakes AD BD No. + coil assembly No. K + coil assembly No. M + coil assembly No. P + coil assembly Electronic switch kit 5 Vdc 0 Vdc 5 Vdc 0 Vdc 5 Vdc 0 Vdc 5 Vdc 0 Vdc /8 Vdc 5 Vdc 0 Vdc

26 Optional Modification Kits BK TO PRODUCT PAGE TABLE Contents of Kits and Assemblies Letter Designation A A B DP 6 Z AD BD CC Z AD BD Kit Description Hardware kit NEMA ( ) Housing acorn nuts Conduit plugs Release cover with clip Release cover gasket Hardware kit NEMA ( ) Hardware kit NEMA X ( ) Endplate oil seal Drain plug Housing nuts Housing nut O rings Release cover Release cover screws Release cover gasket Housing-to-endplate gasket Stationary disc kit ( ) Stationary disc Stationary disc kit ( ) Stationary discs with springs Stationary disc kit ( ) Stationary discs with springs Friction disc kit ( ) Friction disc Stabilizing clips Disc pack kit ( X-00), or Friction disc(s), or Stationary disc(s) Stabilizing clips ( only), 6 or 9 Stationary disc separator springs Hub and set screw assembly all types, all bores (5-6-55X-00) Brake hub Set screws No. solenoid kit ( ) ( ) Plunger Solenoid link Frame (including mounting bracket) Solenoid link cap screw Solenoid link nut Solenoid mounting screws No. coil kit (5-66-6XX-X) and coil assembly (5-96-6XX-X) Coil / Top Plunger guide / Wire nut switch kit ( X-5) Electronic switch Mounting bracket Bracket mounting screws Switch mounting screws Nuts Lock washers 5 Crimp connectors Brake release interlock switch ( ) Microswitch Mounting bracket Bracket mounting screws Switch mounting screws Lock washers Nuts Lead wire assembly TABLE Catalog Mod Number Catalog Mod Number M6 No. Class H coil kit 60 Hz No. K Class H coil kit 60 Hz No. K+ Class H coil kit 60 Hz No. M+ Class H coil kit 60 Hz Description Description 5/0 Vac 0/60 Vac 5 Vac 0 Vac 60 Vac 5/0 Vac 0/60 Vac 5 Vac 0 Vac 60 Vac 5/0 Vac 0/60 Vac 5 Vac 0 Vac 60 Vac 5/0 Vac 0/60 Vac 5 Vac 0 Vac 60 Vac Torque (lb-ft).5, & 6 Brake Model Number Part Number Torque (lb-ft) Brake Model Number Part Number & & & 5 Rexnord Industries, Inc. Stearns Division 550 S. International Drive Cudahy, Wisconsin 50 () 7-00 Fax: () & & 5 M Brass Stationary Disc M Space Heater 5 Vac 0 Vac M7 Terminal Strip M Vertical Spring Kit ( disc) ( disc) X -056-X -056-X -056-X -056-X Copyright by Rexnord Industries, Inc X X

27 BK TO PRODUCT PAGE Spring-Set Disc Brakes Parts List for (rev. A & B) Manual Adjust Brakes P/N effective 0//08 For Installation and Service Instructions refer to sheet part number Instructions and parts list also available at Tools required for installation and servicing: /8 hex wrench 5/6 nut driver 5/6 hex wrench / screwdriver /6 hex wrench 8 adjustable wrench Typical Nameplate IMPORTANT Please read these instructions carefully before installing, operating, or servicing your Stearns Brake. Failure to comply with these instructions could cause injury to personnel and/or damage to property if the brake is installed or operated incorrectly. For definition of limited warranty/liability, contact Rexnord Industries, LLC, Stearns Division, 550 S. International Dr., Cudahy, WI 50, () Caution. Installation and servicing must be made in compliance with all local safety codes including Occupational Safety and Health Act (OSHA). All wiring and electrical connections must comply with the National Electric Code (NEC) and local electric codes in effect.. Do not operate the brake in atmospheres containing explosive gases or dusts.. To prevent an electrical hazard, disconnect power source before working on the brake. If power disconnect point is out of sight, lock disconnect in the off position and tag to prevent accidental application of power.. Make certain power source conforms to the requirements specified on the brake nameplate. 5. Be careful when touching the exterior of an operating brake. Allow sufficient time for brake to cool before disassembly. Surfaces may be hot enough to be painful or cause injury. 6. Do not operate brake with housing removed. All moving parts should be guarded. 7. Installation and servicing should be performed only by qualified personnel familiar with the construction and operation of the brake. 8. For proper performance and operation, only genuine Stearns parts should be used for repairs and replacements. 9. After usage, the brake interior will contain burnt and degraded friction material dust. This dust must be removed before servicing or adjusting the brake. DO NOT BLOW OFF DUST using an air hose. It is important to avoid dispersing dust into the air or inhaling it, as this may be dangerous to your health. a) Wear a filtered mask or a respirator while removing dust from the inside of a brake. b) Use a vacuum cleaner or a soft brush to remove dust from the brake. When brushing, avoid causing the dust to become airborne. Collect the dust in a container, such as a bag, which can be sealed off.

28 BK TO PRODUCT PAGE Information required when ordering replacement parts: Give Part Number of parts or kits needed, Brake Model Number, and Brake Serial Number. The Brake Model and Serial Number may identify special brakes not covered by this parts list When ordering hubs, specify shaft diameter (hub bore) and keyway. Enclosure is specified as follows: NEMA (formerly referred to as standard) NEMA (formerly referred to as DTWP dust-tight waterproof) NEMA X (formerly referred to as BISSC washdown) A (NEMA and X) AA Support Plate Assembly (A & B) A (NEMA and X C 6 A AA Solenoid and Coil Assembly Torque (lb-ft).5 and NEMA Enclosure 0 and 5 X X X X X TABLE Components of Standard or Brake Brake Model Number Item Description Part Number A Hardware kit - NEMA Hardware kit - NEMA Hardware kit - NEMA X & & & & & & AA 7 A B Plug/Gasket kit NEMA Close couple NEMA X NEMA disc NEMA X disc Housing & release kit NEMA Housing & release kit NEMA Housing & release kit NEMA X Stationary disc kit ( disc universal disc horizontal) Stationary disc kit ( disc universal) Stationary disc kit ( disc universal) Not Shown Vertical spring kit ( disc) C DP 6 Friction disc kit Stabilizing clip (part of ) Disc pack kit disc Disc pack kit disc Disc pack kit disc Hub and set screw assembly & disc (NEMA ) Hub and set screw assembly disc (NEMA & X) Hub and set screw assembly disc (NEMA ) and & disc (NEMA & X) Endplate Endplate Endplate & Seal Assy. Endplate & Seal Assy. disc (NEMA ) & disc (NEMA ) disc (NEMA ) & disc (NEMA ) disc (NEMA X) & disc (NEMA X) 5/8 bore 7/8 bore -/8 bore 5/8 bore 7/8 bore -/8 bore 5/8 bore 7/8 bore -/8 bore B D E B D E B D E F F Certain multiple friction disc model numbers require a single stabilizer clip (D) added to each friction disc. If your brake has these clips, they must be replaced when the friction disc is replaced. This clip is included as part of the friction disc kit Close coupled brakes identified by 8 in the 8th digit. example: -056-XXX-8X.

29 Support Plate Assembly BK TO PRODUCT PAGE TABLE Components of Support Plate and Coil Assembly 6 8 8R 8W N 0 Torque (lb-ft).5 & NEMA Enclosure X X X X X X Support Plate Assy. (Items 6 through and Z) Item Description Part Number Bearing Solenoid lever Retaining ring Spacer W 7 6 9A 6 S Torque adjustment nut Wear adjustment screw Pressure spring Pressure spring Pressure spring Spring washer Lever arm and stop nut assy. Bearing pin Plunger stop Support plate and spring stud assembly ( housing studs) Support plate and spring stud assembly ( housing studs) Pivot pin Mounting screws Brakes Z No. solenoid kit (rev A & B) (rev B only) /0 Vac 0/60 Vac No. 5 Vac coil kit 0 Vac Hz 60 Vac /0 Vac 0/60 Vac No. K 5 Vac coil kit 0 Vac Hz 60 Vac /0 Vac /60 Vac No. K+ 5 Vac coil kit 0 Vac Hz 60 Vac /0 Vac 0/60 Vac No. M+ 5 Vac coil kit 0 Vac Hz 60 Vac CC Brake release interlock switch (optional) Brakes No. + coil 5 Vdc assembly 0 Vdc No. K + coil 5 Vdc AD assembly 0 Vdc No. M + coil 5 Vdc assembly 0 Vdc No. P + coil 5 Vdc assembly 0 Vdc /8 Vdc BD Electronic 5 Vdc switch kit 0 Vdc

30 Optional Modification Kits BK TO PRODUCT PAGE TABLE Contents of Kits and Assemblies Z AD BD TABLE Catalog Mod Number Description Torque (lb-ft).5, & 6 Brake Model Number Part Number X -056-X -056-X 0 & X -056-X 0 & X X M Brass Stationary Disc Item A A B DP 6 Z AD BD CC Kit Description Hardware kit NEMA ( ) Housing acorn nuts Conduit plugs Hardware kit NEMA ( ) Hardware kit NEMA X ( ) Housing nuts Housing nut gaskets Endplate oil seal Endplate hole plugs Housing to endplate gasket Endplate conduit pipe plugs Stationary disc kit ( ) Stationary disc Stationary disc kit ( ) Stationary discs with springs Stationary disc kit ( ) Stationary discs with springs Friction disc kit ( ) Friction disc Stabilizing clips Disc pack kit ( X-00), or Friction disc(s), or Stationary disc(s) Stabilizing clips ( only), 6 or 9 Stationary disc separator springs Hub and screw assembly all types, all bores (5-6-55X-00) Brake hub Set screws No. solenoid kit ( ) ( ) Plunger Solenoid link Frame (including mounting bracket) Solenoid link cap screw Solenoid link nut Solenoid mounting screws No. coil kit ( XX-X) and coil assembly (5-96-6XX-X) Coil / Top Plunger guide / Wire nut switch kit ( X-5) Electronic switch Mounting bracket Bracket mounting screws Switch moutning screws nuts Lock washers 5 Crimp connectors Brake release interlock switch ( ) Microswitch Mounting bracket Bracket mounting screws Switch mounting screws Lock washers Nuts Lead wire assembly M Catalog Mod Number M6 Space Heater 5 Vac 0 Vac No. Class H coil kit 60 Hz No. K Class H coil kit 60 Hz No. K+ Class H coil kit 60 Hz No. M+ Class H coil kit 60 Hz Description 5/0 Vac 0/60 Vac 5 Vac 0 Vac 60 Vac 5/0 Vac 0/60 Vac 5 Vac 0 Vac 60 Vac 5/0 Vac 0/60 Vac 5 Vac 0 Vac 60 Vac 5/0 Vac 0/60 Vac 5 Vac 0 Vac 60 Vac M7 Terminal Strip M Vertical Spring Kit ( disc) ( disc) Torque (lb-ft) Brake Model Number Part Number & & Rexnord Industries, LLC Stearns Division 550 S. International Drive Cudahy, Wisconsin 50 () 7-00 Fax: () & Copyright by Rexnord Industries, LLC

31 BK TO PRODUCT PAGE Spring-Set Disc Brakes Parts List for (rev. A & B) Manual Adjust Brakes P/N effective 0//08 For Installation and Service Instructions refer to sheet part number Instructions and parts list also available at Tools required for installation and servicing: /8 hex wrench 5/6 nut driver 5/6 hex wrench / screwdriver /6 hex wrench 8 adjustable wrench Typical Nameplate IMPORTANT Please read these instructions carefully before installing, operating, or servicing your Stearns Brake. Failure to comply with these instructions could cause injury to personnel and/or damage to property if the brake is installed or operated incorrectly. For definition of limited warranty/liability, contact Rexnord Industries, LLC, Stearns Division, 550 S. International Dr., Cudahy, WI 50, () Caution. Installation and servicing must be made in compliance with all local safety codes including Occupational Safety and Health Act (OSHA). All wiring and electrical connections must comply with the National Electric Code (NEC) and local electric codes in effect.. Do not operate the brake in atmospheres containing explosive gases or dusts.. To prevent an electrical hazard, disconnect power source before working on the brake. If power disconnect point is out of sight, lock disconnect in the off position and tag to prevent accidental application of power.. Make certain power source conforms to the requirements specified on the brake nameplate. 5. Be careful when touching the exterior of an operating brake. Allow sufficient time for brake to cool before disassembly. Surfaces may be hot enough to be painful or cause injury. 6. Do not operate brake with housing removed. All moving parts should be guarded. 7. Installation and servicing should be performed only by qualified personnel familiar with the construction and operation of the brake. 8. For proper performance and operation, only genuine Stearns parts should be used for repairs and replacements. 9. After usage, the brake interior will contain burnt and degraded friction material dust. This dust must be removed before servicing or adjusting the brake. DO NOT BLOW OFF DUST using an air hose. It is important to avoid dispersing dust into the air or inhaling it, as this may be dangerous to your health. a) Wear a filtered mask or a respirator while removing dust from the inside of a brake. b) Use a vacuum cleaner or a soft brush to remove dust from the brake. When brushing, avoid causing the dust to become airborne. Collect the dust in a container, such as a bag, which can be sealed off.

32 Support Plate Assembly BK TO PRODUCT PAGE Information required when ordering replacement parts: Give Part Number of parts or kits needed, Brake Model Number, and Brake Serial Number. The Brake Model and Serial Number may identify special brakes not covered by this parts list. When ordering hubs, specify shaft diameter (hub bore) and keyway. NOTE: Housing Enclosure is NEMA rated (formerly referred to as standard). 7 6 A 7A C (A & B) Torque (lb-ft).5 and & 5 NEMA Enclosure TABLE Components of Standard or Brake Brake Model Number Item Description Part Number 7 7A A B Not Shown C DP 6 A Housing Housing nut Stationary disc kit ( disc universal disc horizontal) Stationary disc kit ( disc universal) Stationary disc kit ( disc horizontal) Vertical Spring Kit ( disc) Friction disc kit Stabilizing clip (part of ) Disc pack kit disc Disc pack kit disc Disc pack kit disc Hub and set screw assembly & disc Hub and set screw assembly disc Endplate and stationary disc assembly Conduit plug 5/8 bore 7/8 bore -/8 bore 5/8 bore 7/8 bore -/8 bore & disc (NEMA ) disc (NEMA ) & & & B D E B D E Certain multiple friction disc model numbers require a single stabilizer clip (D) added to each friction disc. If your particular brake model has this clip on the discs, as received, it must be replaced whenever the friction disc is replaced. This clip is included as part of the friction disc kit &

33 Solenoid and Coil Assembly BK TO PRODUCT PAGE TABLE Components of Support Plate and Coil Assembly Torque (lb-ft) Support Plate Assy. (Items 6 through and Z) Item Description Part Number 6 8 8R 8W N 0 Bearing Solenoid lever Retaining ring Spacer Torque adjustment nut Wear adjustment screw Pressure spring Pressure spring Pressure spring Spring washer Lever arm and stop nut assy. Bearing pin Plunger stop & W 7 6 9A 8 Release indicator Release spring Support plate and spring stud assembly ( housing studs) S Pivot pin Mounting screws Brakes Z No. solenoid kit (rev A & B) (rev B only) /0 Vac 0/60 Vac No. 5 Vac coil kit 0 Vac Hz 60 Vac /0 Vac 0/60 Vac No. K 5 Vac coil kit 0 Vac Hz 60 Vac /0 Vac /60 Vac No. K+ 5 Vac coil kit 0 Vac Hz 60 Vac /0 Vac 0/60 Vac No. M+ 5 Vac coil kit 0 Vac Hz 60 Vac CC Brake release interlock switch (optional) Brakes No. + coil 5 Vdc assembly 0 Vdc No. K + coil 5 Vdc AD assembly 0 Vdc No. M + coil 5 Vdc assembly 0 Vdc No. P + coil 5 Vdc assembly 0 Vdc /8 Vdc BD Electronic 5 Vdc switch kit 0 Vdc Z TABLE Contents of Kits and Assemblies Item A B DP 6 Z AD BD CC AD BD Kit Description Stationary disc kit ( ) Stationary disc Stationary disc kit ( ) Stationary discs with springs Stationary disc kit ( ) Stationary discs with springs Friction disc kit ( ) Friction disc Stabilizing clips Disc pack kit ( X-00), or Friction disc(s), or Stationary disc(s) clips ( only), 6 or 9 Stationary disc separator springs Hub and set screw assembly all types, all bores (5-6-55X-00) Brake hub Set screws No. solenoid kit ( ) ( ) Plunger Solenoid link Frame (including mounting bracket) Solenoid link cap screw Solenoid link nut Solenoid mounting screws No. coil kit (5-66-6XX-X) and coil assembly (5-96-6XX-X) Coil / Top Plunger guide / Wire nut switch kit ( X-5) Electronic switch Mounting bracket Bracket mounting screws Switch mounting screws Nuts Lock washers 5 Crimp connectors Brake release interlock switch ( ) Microswitch Mounting bracket Bracket mounting screws Switch mounting screws Lock washers Nuts Lead wire assembly

34 Optional Modification Kits BK TO PRODUCT PAGE Torque (lb-ft).5, & 6 0 & 5 0 & 5 TABLE Catalog Mod Number Description Brake Model Number Part Number X -056-X -056-X -056-X -056-X X X M Brass Stationary Disc M Space Heater 5 Vac 0 Vac M7 Terminal Strip M Vertical Spring Kit ( disc) ( disc) Torque (lb-ft).5 & 6 & 0 5 & 0 5 Catalog Mod Number M6 No. Class H coil kit 60 Hz No. K Class H coil kit 60 Hz No. K+ Class H coil kit 60 Hz No. M+ Class H coil kit 60 Hz Description 5/0 Vac 0/60 Vac 5 Vac 0 Vac 60 Vac 5/0 Vac 0/60 Vac 5 Vac 0 Vac 60 Vac 5/0 Vac 0/60 Vac 5 Vac 0 Vac 60 Vac 5/0 Vac 0/60 Vac 5 Vac 0 Vac 60 Vac Brake Model Number Part Number Rexnord Industries, LLC Stearns Division 550 S. International Drive Cudahy, Wisconsin 50 () 7-00 Fax: () Copyright by Rexnord Industries, LLC

35 Spring-Set Disc Brakes Parts List for (rev. A & B) Manual Adjust Brakes BK TO PRODUCT PAGE P/N effective 0//08 For Installation and Service Instructions refer to sheet part number Instructions and parts list also available at Tools required for installation and servicing: /8 hex wrench 5/6 nut driver 5/6 hex wrench / screwdriver /6 hex wrench 8 adjustable wrench Typical Nameplate IMPORTANT Please read these instructions carefully before installing, operating, or servicing your Stearns Brake. Failure to comply with these instructions could cause injury to personnel and/or damage to property if the brake is installed or operated incorrectly. For definition of limited warranty/liability, contact Rexnord Industries, :LLC Stearns Division, 550 S. International Dr., Cudahy, WI 50, () Caution. Installation and servicing must be made in compliance with all local safety codes including Occupational Safety and Health Act (OSHA). All wiring and electrical connections must comply with the National Electric Code (NEC) and local electric codes in effect.. Do not operate the brake in atmospheres containing explosive gases or dusts.. To prevent an electrical hazard, disconnect power source before working on the brake. If power disconnect point is out of sight, lock disconnect in the off position and tag to prevent accidental application of power.. Make certain power source conforms to the requirements specified on the brake nameplate. 5. Be careful when touching the exterior of an operating brake. Allow sufficient time for brake to cool before disassembly. Surfaces may be hot enough to be painful or cause injury. 6. Do not operate brake with housing removed. All moving parts should be guarded. 7. Installation and servicing should be performed only by qualified personnel familiar with the construction and operation of the brake. 8. For proper performance and operation, only genuine Stearns parts should be used for repairs and replacements. 9. After usage, the brake interior will contain burnt and degraded friction material dust. This dust must be removed before servicing or adjusting the brake. DO NOT BLOW OFF DUST using an air hose. It is important to avoid dispersing dust into the air or inhaling it, as this may be dangerous to your health. a) Wear a filtered mask or a respirator while removing dust from the inside of a brake. b) Use a vacuum cleaner or a soft brush to remove dust from the brake. When brushing, avoid causing the dust to become airborne. Collect the dust in a container, such as a bag, which can be sealed off.

36 BK TO PRODUCT PAGE Information required when ordering replacement parts: Give Part Number of parts or kits needed, Brake Model Number, and Brake Serial Number. The Brake Model and Serial Number may identify special brakes not covered by this parts list. When ordering hubs, specify shaft diameter (hub bore) and keyway. Enclosure is specified as follows: NEMA (formerly referred to as standard) NEMA (formerly referred to as DTWP dust-tight waterproof) Support Plate Assembly 7 (NEMA ) Solenoid and Coil Assembly A (NEMA ) AA (A & B) A 7 (NEMA & X) C 6 A AA Support Plate (details above) A Torque (lb-ft).5 and and 5 NEMA Enclosure TABLE Components of Standard or Brake Brake Model Number Item Description Part Number A AA 7 A B Not shown C DP 6 Hardware kit - NEMA Hardware kit - NEMA Plug / Gasket kit - NEMA & disc Close couple - NEMA disc Housing & release knob kit - NEMA Housing & release knob kit - NEMA Stationary disc kit ( disc universal disc horizontal) Stationary disc kit ( disc universal) Stationary disc kit ( disc vertical) Vertical Spring Kit ( disc) Friction disc kit Stabilizing clip (part of ) Disc pack kit - disc Disc pack kit - disc Disc pack kit - disc Hub and set screw assembly & disc (NEMA ) Hub and set screw assembly disc (NEMA ) Hub and set screw assembly disc (NEMA ) and & disc (NEMA ) Endplate Endplate Endplate & seal assy. Endplate & seal assy. 5/8 bore 7/8 bore -/8 bore 5/8 bore 7/8 bore -/8 bore 5/8 bore 7/8 bore -/8 bore disc (NEMA ) & disc (NEMA ) disc (NEMA ) & disc (NEMA ) B D E B D E B D E F F & & & & Certain multiple friction disc model numbers require a single stabilizer clip (D) added to each friction disc. If your particular brake model has this clip on the discs, as received, it must be replaced whenever the friction disc is replaced. This clip is included as part of the friction disc kit Close coupled brakes identified by 8 in the 8th digit position. Example: -056-XXX-8X.

37 Torque (lb-ft).5 & NEMA Enclosure BK TO PRODUCT PAGE TABLE Components of Support Plate and Coil Assembly 6 8 8R 8W N 0 Support Plate Assy. (Items 6 through and Z) Item Description Part Number Bearing Solenoid lever Retaining ring Spacer W 7 6 9A 6 S Torque adjustment nut Wear adjustment screw Pressure spring Pressure spring Pressure spring Spring washer Lever arm and stop nut assy. Bearing pin Plunger stop Support plate and spring stud assembly ( housing studs) Support plate and spring stud assembly ( housing studs) Pivot pin Mounting screws Brakes Z No. solenoid kit (rev A & B) (rev B only) 5/0 Vac 0/60 Vac No. 5 Vac coil kit 0 Vac 60 Hz 60 Vac 5/0 Vac 0/60 Vac No. K 5 Vac coil kit 0 Vac 60 Hz 60 Vac 5/0 Vac 0/60 Vac No. K+ 5 Vac coil kit 0 Vac 60 Hz 60 Vac 5/0 Vac 0/60 Vac No. M+ 5 Vac coil kit 0 Vac 60 Hz 60 Vac Brake release interlock switch CC (optional) Brakes AD BD No. + coil assembly No. K + coil assembly No. M + coil assembly No. P + coil assembly Electronic switch kit 5 Vdc 0 Vdc 5 Vdc 0 Vdc 5 Vdc 0 Vdc 5 Vdc 0 Vdc /8 Vdc 5 Vdc 0 Vdc

38 Solenoid and Coil Assembly Z Optional Modification Kits BK TO PRODUCT PAGE AD Torque (lb-ft).5, & 6 0 & 5 0 & 5 TABLE Contents of Kits and Assemblies Item A 7 A B DP 6 Z AD BD CC Kit Description Hardware kit NEMA ( ) Housing acorn nuts Conduit plugs Hardware kit NEMA ( ) Housing nuts Housing nut gaskets Endplate oil seal Endplate hole plugs Housing to endplate U gasket Endplate conduit pipe plugs Housing & release knob kit ( X-00) Housing and release knob assembly or Housing nuts Housing nut gasket (NEMA ) Stationary disc kit ( ) Stationary disc Stationary disc kit ( ) Stationary discs with springs Stationary disc kit ( ) Stationary discs with springs Friction disc kit ( ) Friction disc Stabilizing clips BD Disc pack kit ( X-00), or Friction disc(s), or Stationary disc(s) Stabilizing clips ( only), 6 or 9 Stationary disc separator springs Hub and set screw assembly all types, all bores (5-6-55X-00) Brake hub Set screws No. solenoid kit ( ) ( ) Plunger Solenoid link Frame (including mounting bracket) Solenoid link cap screw Solenoid link nut Solenoid mounting screws No. coil kit (5-66-6XX-X) and coil assembly (5-96-6XX-X) Coil / Top Plunger guide / Wire nut switch kit ( X-5) Electronic switch Mounting bracket Bracket mounting screws Switch mounting screws Nuts Lock washers 5 Crimp connectors Brake release interlock switch ( ) Microswitch Mounting bracket Bracket mounting screws Switch mounting screws Lock washers Nuts Lead wire assembly TABLE Catalog Mod Number Catalog Mod Number M6 No. Class H coil kit 60 Hz No. K Class H coil kit 60 Hz No. K+ Class H coil kit 60 Hz No. M+ Class H coil kit 60 Hz Description Description 5/0 Vac 0/60 Vac 5 Vac 0 Vac 60 Vac 5/0 Vac 0/60 Vac 5 Vac 0 Vac 60 Vac 5/0 Vac 0/60 Vac 5 Vac 0 Vac 60 Vac 5/0 Vac 0/60 Vac 5 Vac 0 Vac 60 Vac Brake Model Number Part Number M Brass Stationary Disc M Space Heater 5 Vac 0 Vac M7 Terminal Strip M Vertical Spring Kit ( disc) ( disc) Torque (lb-ft) Brake Model Number Part Number & X -056-X -056-X 6 & X -056-X Rexnord Industries, LLC Stearns Division 550 S. International Drive Cudahy, Wisconsin 50 () 7-00 Fax: () & Copyright by Rexnord Industries, LLC X X

39 BK TO PRODUCT PAGE Spring-Set Disc Brakes Parts List for (rev. A & B) Manual Adjust Brakes P/N effective 0//08 For Installation and Service Instructions refer to sheet part number Instructions and parts list also available at Tools required for installation and servicing: /8 hex wrench 5/6 nut driver 5/6 hex wrench / screwdriver /6 hex wrench 8 adjustable wrench Typical Nameplate IMPORTANT Please read these instructions carefully before installing, operating, or servicing your Stearns Brake. Failure to comply with these instructions could cause injury to personnel and/or damage to property if the brake is installed or operated incorrectly. For definition of limited warranty/liability, contact Rexnord Industries, Inc., Stearns Division, 550 S. International Dr., Cudahy, WI 50, () Caution. Installation and servicing must be made in compliance with all local safety codes including Occupational Safety and Health Act (OSHA). All wiring and electrical connections must comply with the National Electric Code (NEC) and local electric codes in effect.. Do not operate the brake in atmospheres containing explosive gases or dusts.. To prevent an electrical hazard, disconnect power source before working on the brake. If power disconnect point is out of sight, lock disconnect in the off position and tag to prevent accidental application of power.. Make certain power source conforms to the requirements specified on the brake nameplate. 5. Be careful when touching the exterior of an operating brake. Allow sufficient time for brake to cool before disassembly. Surfaces may be hot enough to be painful or cause injury. 6. Do not operate brake with housing removed. All moving parts should be guarded. 7. Installation and servicing should be performed only by qualified personnel familiar with the construction and operation of the brake. 8. For proper performance and operation, only genuine Stearns parts should be used for repairs and replacements. 9. After usage, the brake interior will contain burnt and degraded friction material dust. This dust must be removed before servicing or adjusting the brake. DO NOT BLOW OFF DUST using an air hose. It is important to avoid dispersing dust into the air or inhaling it, as this may be dangerous to your health. a) Wear a filtered mask or a respirator while removing dust from the inside of a brake. b) Use a vacuum cleaner or a soft brush to remove dust from the brake. When brushing, avoid causing the dust to become airborne. Collect the dust in a container, such as a bag, which can be sealed off.

40 BK TO PRODUCT PAGE Information required when ordering replacement parts: Give Part Number of parts or kits needed, Brake Model Number, and Brake Serial Number. The Brake Model and Serial Number may identify special brakes not covered by this parts list When ordering hubs, specify shaft diameter (hub bore) and keyway. Enclosure is specified as follows: NEMA (formerly referred to as standard) NEMA (formerly referred to as DTWP dust-tight waterproof) NEMA X (formerly referred to as BISSC washdown) 7 (NEMA ) A (NEMA & X) AA (A & B) A 7 (NEMA & X) 6 A Torque (lb-ft) and 5 NEMA Enclosure X X X TABLE Components of Standard or Brake Brake Model Number Item Description Part Number A AA 7 A B Hardware kit - NEMA Hardware kit - NEMA Hardware kit - NEMA X Plug/Gasket kit -NEMA Close couple -NEMA X -NEMA disc -NEMA X disc Housing and release knob kit - NEMA Housing and release knob kit - NEMA Housing and release knob kit - NEMA X Stationary disc kit ( disc horizontal) Stationary disc kit ( disc universal) Stationary disc kit ( disc vertical) & & & Not Shown Vertical spring kit Friction disc kit DP Disc pack kit - disc Disc pack kit - disc Hub and set screw assembly disc (NEMA ) Hub and set screw assembly disc (NEMA ) and disc (NEMA & X) 5/8 bore 7/8 bore -/8 bore 5/8 bore 7/8 bore -/8 bore B D E B D E Endplate Endplate and seal assembly Endplate and seal assembly NEMA NEMA NEMA X F Certain multiple friction disc model numbers require a single stabilizer clip (D) added to each friction disc. If your brake has these clips, they must be replaced when the friction disc is replaced. This clip is included as part of the friction disc kit Close coupled brakes identified by 8 in the 8th digit. example: -056-XXX-8X.

41 Support Plate Assembly BK TO PRODUCT PAGE TABLE Components of Support Plate and Coil Assembly 6 8 8R 8W N 0 Torque (lb-ft) NEMA Enclosure Support Plate Assy. (Items 6 through and Z) Item Description Part Number Bearing Solenoid lever Retaining ring Spacer W 7 6 9A 6 S Torque adjustment nut Wear adjustment screw Pressure spring Pressure spring Pressure spring Spring washer Lever arm and stop nut assy. Bearing pin Plunger stop Support plate and spring stud assembly ( housing studs) Support plate and spring stud assembly ( housing studs) Pivot pin Mounting screws Brakes Z No. solenoid kit (rev A & B) (rev B only) 5/0 Vac 0/60 Vac No. 5 Vac coil kit 0 Vac 60 Hz 60 Vac 5/0 Vac 0/60 Vac No. K 5 Vac coil kit 0 Vac 60 Hz 60 Vac 5/0 Vac 0/60 Vac No. K+ 5 Vac coil kit 0 Vac 60 Hz 60 Vac 5/0 Vac 0/60 Vac No. M+ 5 Vac coil kit 0 Vac 60 Hz 60 Vac CC Brake release interlock switch (optional) Brakes No. + coil 5 Vdc assembly 0 Vdc No. K + coil 5 Vdc AD assembly 0 Vdc No. M + coil 5 Vdc assembly 0 Vdc No. P + coil 5 Vdc assembly 0 Vdc /8 Vdc BD Electronic 5 Vdc switch kit 0 Vdc X X X X

42 Solenoid and Coil Assembly Optional Modification Kits BK TO PRODUCT PAGE Z AD Torque (lb-ft) 0 & 5 0 & 5 BD TABLE Brake Model Number X X X X Catalog Mod Number Description Part Number TABLE Contents of Kits and Assemblies Item A 7 A DP 6 Z AD BD CC Kit Description Hardware kit - NEMA ( ) - Housing acorn nuts - Conduit plugs Hardware kit - NEMA ( ) Hardware kit - NEMA X ( ) - Housing nuts - Housing nut gaskets - Endplate oil seal - Endplate hole plugs - Housing to endplate U gasket - Endplate conduit pipe plugs Housing and release knob kit ( X-00) - Housing and release knob assembly or - Housing nuts - Housing nut gasket (NEMA and X) Stationary disc kit ( ) - Stationary discs Stationary disc kit ( ) - Stationary discs with springs Friction disc kit ( ) - Friction disc Disc pack kit ( X-00) or - Friction discs or - Stationary discs 6 or 9 - Stationary disc separator springs Hub and set screw assembly - all types, all bores (5-6-55X-00) - Brake hub - Set screws No. solenoid kit ( ) ( ) - Plunger - Solenoid link - Frame (including mounting bracket) - Solenoid link cap screw - Solenoid link nut - Solenoid mounting screws No. coil kit (5-66-6XX-X) and coil assembly (5-96-6XX-X) Coil / Top plunger guide / Wire nut switch kit ( X-5) - Electronic switch - Mounting bracket - Bracket mounting screws - Switch mounting screws - Nuts - Lock washers 5 - Crimp connectors Brake release interlock switch ( ) - Microswitch - Mounting bracket - Bracket mounting screws - Switch mounting screws - Lock washers - Nuts - Lead wire assembly M Brass Stationary Disc M Catalog Mod Number M6 Space Heater 5 Vac 0 Vac No. K Class H coil kit 60 Hz No. K+ Class H coil kit 60 Hz No. M+ Class H coil kit 60 Hz Description 5/0 Vac 0/60 Vac 5 Vac 0 Vac 60 Vac 5/0 Vac 0/60 Vac 5 Vac 0 Vac 60 Vac 5/0 Vac 0/60 Vac 5 Vac 0 Vac 60 Vac M7 Terminal Strip M Vertical Spring Kit ( disc) ( disc) Torque (lb-ft) 0 Brake Model Number Part Number & Rexnord Industries, LLC Stearns Division 550 S. International Drive Cudahy, Wisconsin 50 () 7-00 Fax: () Copyright by Rexnord Industries, LLC

43 BK TO PRODUCT PAGE Spring-Set Disc Brakes Parts List for (rev. A & B) Manual Adjust Brakes P/N effective 0//08 For Installation and Service Instructions refer to sheet part number Instructions and parts list also available at Tools required for installation and servicing: /8 hex wrench 5/6 nut driver 5/6 hex wrench / screwdriver /6 hex wrench 8 adjustable wrench Typical Nameplate IMPORTANT Please read these instructions carefully before installing, operating, or servicing your Stearns Brake. Failure to comply with these instructions could cause injury to personnel and/or damage to property if the brake is installed or operated incorrectly. For definition of limited warranty/liability, contact Rexnord Industries, LLC., Stearns Division, 550 S. International Dr., Cudahy, WI 50, () Caution. Installation and servicing must be made in compliance with all local safety codes including Occupational Safety and Health Act (OSHA). All wiring and electrical connections must comply with the National Electric Code (NEC) and local electric codes in effect.. Do not operate the brake in atmospheres containing explosive gases or dusts.. To prevent an electrical hazard, disconnect power source before working on the brake. If power disconnect point is out of sight, lock disconnect in the off position and tag to prevent accidental application of power.. Make certain power source conforms to the requirements specified on the brake nameplate. 5. Be careful when touching the exterior of an operating brake. Allow sufficient time for brake to cool before disassembly. Surfaces may be hot enough to be painful or cause injury. 6. Do not operate brake with housing removed. All moving parts should be guarded. 7. Installation and servicing should be performed only by qualified personnel familiar with the construction and operation of the brake. 8. For proper performance and operation, only genuine Stearns parts should be used for repairs and replacements. 9. After usage, the brake interior will contain burnt and degraded friction material dust. This dust must be removed before servicing or adjusting the brake. DO NOT BLOW OFF DUST using an air hose. It is important to avoid dispersing dust into the air or inhaling it, as this may be dangerous to your health. a) Wear a filtered mask or a respirator while removing dust from the inside of a brake. b) Use a vacuum cleaner or a soft brush to remove dust from the brake. When brushing, avoid causing the dust to become airborne. Collect the dust in a container, such as a bag, which can be sealed off.

44 Information required when ordering replacement parts: Give part number of parts or kits needed, Brake Model Number, and Brake Serial Number. The Brake Model and Serial Number may identify special brakes not covered by this parts list. When ordering hubs, specify shaft diameter (hub bore) and keyway. Enclosure is specified as follows: NEMA (formerly referred to as standard) NEMA (formerly referred to as DTWP dust-tight waterproof) Support Plate Assembly BK TO PRODUCT PAGE 7 (NEMA ) AA 7 (NEMA and X) AA Solenoid and Coil Assemlby Torque (lb-ft).5 and and 5 NEMA Enclosure X X X X X TABLE Components of Standard or Brake Item Description Brake Model Number Part Number & & & & & & & & A Hardware kit - NEMA Hardware kit - NEMA Hardware kit - NEMA X AA 7 A B Not Shown C DP 6 Plug/Gasket kit - NEMA Close couple - NEMA X - NEMA disc - NEMA X disc Housing - NEMA Housing - NEMA Housing - NEMA X Stationary disc kit ( disc universal disc horizontal) Stationary disc kit ( disc universal) Stationary disc kit ( disc horizontal) Vertical Spring Kit ( disc) Friction disc kit Stabilizing clip (part of ) Disc pack kit - disc Disc pack kit - disc Disc pack kit - disc Hub and set screw assembly & disc (NEMA ) Hub and set screw assembly disc (NEMA and X) 5/8 bore 7/8 bore -/8 bore 5/8 bore 7/8 bore -/8 bore B D E B D E Hub and set screw assembly 5/8 bore B disc (NEMA ) and 7/8 bore D and disc (NEMA and X) -/8 bore E Endplate disc (NEMA ) F Endplate & disc (NEMA ) F Endplate & seal assembly disc (NEMA ) Endplate & seal assembly & disc (NEMA ) Endplate & seal assembly disc (NEMA X) Endplate & seal assembly & disc (NEMA X) Certain multiple friction disc model numbers require a single stabilizer clip (D) added to each friction disc. If your particular brake model has this clip on the discs, as received, it must be replaced whenever the friction disc is replaced. This clip is included as part of the friction disc kit Close coupled brakes identified by 8 in the 8th digit. Example: -056-XXX-8X.

45 BK TO PRODUCT PAGE TABLE Components of Support Plate and Coil Assembly 6 8 8R 8W N 0 Torque (lb-ft).5 & NEMA Enclosure Support Plate Assy. (Items 6 through and Z) Item Description Part Number Bearing Solenoid lever Retaining ring Spacer Torque adjustment nut Wear adjustment screw Pressure spring Pressure spring Pressure spring Spring washer Lever arm and stop nut assy. Bearing pin Plunger stop X X X X X X W 7 6 9A 8 Release Indicator Release spring Support plate and spring stud assembly ( housing studs) Support plate and spring stud assembly ( housing studs) S Pivot pin Mounting screws Brakes Z No. solenoid kit (rev A & B) (rev B only) 5/0 Vac 0/60 Vac No. 5 Vac coil kit 0 Vac 60 Hz 60 Vac 5/0 Vac 0/60 Vac No. K 5 Vac coil kit 0 Vac 60 Hz 60 Vac 5/0 Vac 0/60 Vac No. K+ 5 Vac coil kit 0 Vac 60 Hz 60 Vac 5/0 Vac 0/60 Vac No. M+ 5 Vac coil kit 0 Vac 60 Hz 60 Vac Brake release interlock switch CC (optional) Brakes AD BD No. + coil assembly No. K + coil assembly No. M + coil assembly No. P + coil assembly Electronic switch kit 5 Vdc 0 Vdc 5 Vdc 0 Vdc 5 Vdc 0 Vdc 5 Vdc 0 Vdc /8 Vdc 5 Vdc 0 Vdc

46 Solenoid and Coil Assembly Z Optional Modification Kits BK TO PRODUCT PAGE AD Torque (lb-ft).5, & 6 0 & 5 0 & 5 TABLE Contents of Kits and Assemblies BD TABLE Catalog Mod Number Description Brake Model Number Part Number X X X X X X X M Brass Stationary Disc Letter Designation Kit Description M Space Heater 5 Vac 0 Vac A A B DP 6 Z AD BD CC Hardware kit NEMA ( ) Housing nuts Housing nut flat washers Release cover with clip Release cover gasket Hardware kit NEMA ( ) Hardware kit NEMA X ( ) Endplate oil seal Drain plug Housing nuts Housing nut O rings Release cover Release cover screws Release cover gasket Housing-to-endplate-gasket Stationary disc kit ( ) Stationary disc Stationary disc kit ( ) Stationary discs with springs Stationary disc kit ( ) Stationary discs with springs Friction disc kit ( ) Friction disc Stabilizing clips Disc pack kit ( X-00), or Friction disc(s), or Stationary disc(s) Stabilizing clips ( only), 6 or 9 Stationary disc separator springs Hub and set screw assembly all types, all bores (5-6-55X-00) Brake hub Set screws No. solenoid kit ( ) ( ) Plunger Solenoid link Frame (including mounting bracket) Solenoid link cap screw Solenoid link nut Solenoid mounting screws No. coil kit (5-66-6XX-X) and coil assembly (5-96-6XX-X) Coil / Top Plunger guide / Wire nut switch kit ( X-5) Electronic switch Mounting bracket Bracket mounting screws Switch mounting screws Nuts Lock washers 5 Crimp connectors Brake release interlock switch ( ) Microswitch Mounting bracket Bracket mounting screws Switch mounting screws Lock washers Nuts Lead wire assembly M7 Terminal Strip M Catalog Mod Number M6 Vertical Spring Kit ( disc) ( disc) No. Class H coil kit 60 Hz No. K Class H coil kit 60 Hz No. K+ Class H coil kit 60 Hz No. M+ Class H coil kit 60 Hz Description 5/0 Vac 0/60 Vac 5 Vac 0 Vac 60 Vac 5/0 Vac 0/60 Vac 5 Vac 0 Vac 60 Vac 5/0 Vac 0/60 Vac 5 Vac 0 Vac 60 Vac 5/0 Vac 0/60 Vac 5 Vac 0 Vac 60 Vac Torque (lb-ft) Brake Model Number Part Number & & Rexnord Industries, LLC Stearns Division 550 S. International Drive Cudahy, Wisconsin 50 () 7-00 Fax: () rexnord.com 5 & Copyright by Rexnord Industries, LLC

47 Spring-Set Disc Brakes Parts List for (rev. A & B) Double C-Face Coupler BK TO PRODUCT PAGE P/N effective 0//08 For Installation and Service Instructions refer to sheet part number Instructions and parts list also available at 6 Tools required for installation and servicing: /8 hex wrench 5/6 nut driver 5/6 hex wrench / screwdriver /6 hex wrench 8 adjustable wrench Typical Nameplate Important Please read these instructions carefully before installing, operating, or servicing your Stearns Brake. Failure to comply with these instructions could cause injury to personnel and/or damage to property if the brake is installed or operated incorrectly. For definition of limited warranty/liability, contact Rexnord Industries, LLC, Stearns Division, 550 S. International Dr., Cudahy, WI 50, () Caution. Installation and servicing must be made in compliance with all local safety codes including Occupational Safety and Health Act (OSHA). All wiring and electrical connections must comply with the National Electric Code (NEC) and local electric codes in effect.. Do not install the brake in atmospheres containing explosive gases or dusts.. To prevent an electrical hazard, disconnect power source before working on the brake. If power disconnect point is out of sight, lock disconnect in the off position and tag to prevent accidental application of power.. Make certain power source conforms to the requirements specified on the brake nameplate. 5. Be careful when touching the exterior of an operating brake. Allow sufficient time for brake to cool before disassembly. Surfaces may be hot enough to be painful or cause injury. 6. Do not operate brake with housing removed. All moving parts should be guarded. 7. Installation and servicing should be performed only by qualified personnel familiar with the construction and operation of the brake. 8. For proper performance and operation, only genuine Stearns parts should be used for repairs and replacements. 9. After usage, the brake interior will contain burnt and degraded friction material dust. This dust must be removed before servicing or adjusting the brake. DO NOT BLOW OFF DUST using an air hose. It is important to avoid dispersing dust into the air or inhaling it, as this may be dangerous to your health. a) Wear a filtered mask or a respirator while removing dust from the inside of a brake. b) Use a vacuum cleaner or a soft brush to remove dust from the brake. When brushing, avoid causing the dust to become airborne. Collect the dust in a container, such as a bag, which can be sealed off. Caution! While the brake is equipped with a manual release to allow manual shaft rotation, the motor should not be run with the manual release engaged, to avoid overheating the friction disc(s).

48 Information required when ordering replacement parts: Give part number of parts or kits needed, brake model number, and brake serial number. The brake model and serial number may identify special brakes not covered by this parts list. When ordering hubs, specify shaft diameter (hub bore) and keyway. Enclosure is specified as follows: NEMA (formerly referred to as standard) NEMA (formerly referred to as DTWP dust-tight waterproof) NEMA X (formerly referred to as BISSC washdown) BK TO PRODUCT PAGE C Torque (lb-ft) Current NEMA Enclosure.5 & & 5 X X X X X X X X X X TABLE Components of Standard or Brake Brake Model Number Item Description Part Number & & & & & & & & & & & & A Coupler brake shaft kit (5/8 diameter) Coupler brake shaft kit (7/8 diameter) Coupler brake shaft kit - disc (7/8 dia.) S Mounting stud kit (NEMA & ) Mounting stud kit (NEMA X) 7A Access cover (NEMA ) Access cover (NEMA ) Access cover (NEMA X) 7B Manual release assembly (NEMA ) Manual release assembly (NEMA ) Manual release assembly (NEMA X) 7R Machine screw not shown not Gasket - access cover (NEMA & X) shown not Gasket - housing to endplate (NEMA & X) shown not Gasket - brake ends (NEMA & X) shown 7P Pipe plug (drain) Pipe plug (stainless drain) A B C DP 6 A Housing - standard (NEMA ) Housing - DTWP (NEMA ) Housing - BISSC (NEMA X) Stationary disc kit ( disc universal disc horizontal) Stationary disc kit ( disc universal) Stationary disc kit ( disc vertical) Friction disc kit Stabilizing clip (part of ) Disc pack kit ( disc) Disc pack kit ( disc) Disc pack kit ( disc) Hub (5/8 bore) Hub (7/8 bore) disc (7/8 bore) Endplate assembly & disc (NEMA & ) & disc (NEMA X) disc (NEMA & ) disc (NEMA X) Pipe plug - external lead holes Pipe plug - stainless (ext. lead holes) B D Certain multiple friction disc model numbers require a single stabilizer clip (D) added to each friction disc. If your particular brake model has this clip on the discs, as received, it must be replaced whenever the friction disc is replaced. This clip is included as part of the friction disc kit Release Knob Kit

49 BK TO PRODUCT PAGE For coil/solenoid parts refer to Instruction Sheet Torque (lb-ft).5 & TABLE Components of Support Plate and Coil Assembly 6 8 8R 8W N 0 Support Plate Assy. (Items 6 through and Z) Item Description Part Number Bearing Solenoid lever Retaining ring Spacer Torque adjustment nut Wear adjustment screw Pressure spring Pressure spring Pressure spring Spring washer Lever arm and stop nut assy. Bearing pin Plunger stop W 7 6 9A 6 Support plate and spring stud assembly S Pivot pin Mounting screws Brakes Z No. solenoid kit (rev A & B) (rev B only) 5/0 Vac 0/60 Vac No. 5 Vac coil kit 0 Vac 60 Hz 60 Vac 5/0 Vac 0/60 Vac No. K 5 Vac coil kit 0 Vac 60 Hz 60 Vac 5/0 Vac 0/60 Vac No. K+ 5 Vac coil kit 0 Vac 60 Hz 60 Vac 5/0 Vac 0/60 Vac No. M+ 5 Vac coil kit 0 Vac 60 Hz 60 Vac Brake release interlock switch CC (optional) () () () () () () () () () () () () TABLE Contents of Kits and Assemblies Letter Designation A A B DP 7S Z CC Kit Description Coupler brake shaft kit 5/8 shaft ( ) 7/8 shaft ( ) disc 7/8 shaft ( ) Hub and set screw assembly Ball bearing Housing retaining ring Brake shaft Brake shaft key Stationary disc kit ( ) Stationary disc Stationary disc kit ( ) Stationary discs with springs Stationary disc kit ( ) Stationary discs with springs Friction disc kit ( ) Friction disc Stabilizing springs (for -/-6 lb-ft brake use only) Disc pack kit ( X-00), or Friction disc(s), or Stationary disc(s) Stabilizing springs (for -/-6 lb-ft brake use only),6 or 9 Stationary disc separator springs Mounting stud kit ( X-00) - Mounting studs - Lock washers - Nuts No. solenoid kit ( ) ( ) Plunger ( ) Solenoid link Frame (including mounting bracket) Solenoid link cap screw Solenoid link nut Solenoid mounting screws No. coil kit (5-66-6XX-X) Coil Top Plunger guide Wire nut Brake release interlock switch ( ) Microswitch Mounting bracket Bracket mounting screws Switch mounting screws Lead wire assembly

50 Optional Modification Kits BK TO PRODUCT PAGE Torque (lb-ft).5, & 6 0 & 5 0 & 5 TABLE Catalog Mod Number Description Brake Model Number Part Number X X X X X X X M Brass Stationary Disc M Space Heater 5 Vac 0 Vac M7 Terminal Strip M Vertical Spring Kit ( disc) ( disc) Torque (lb-ft).5 & 6 & 0 5 & 0 5 Catalog Mod Number M6 No. Class H coil kit 60 Hz No. K Class H coil kit 60 Hz No. K+ Class H coil kit 60 Hz No. M+ Class H coil kit 60 Hz Description 5/0 Vac 0/60 Vac 5 Vac 0 Vac 60 Vac 5/0 Vac 0/60 Vac 5 Vac 0 Vac 60 Vac 5/0 Vac 0/60 Vac 5 Vac 0 Vac 60 Vac 5/0 Vac 0/60 Vac 5 Vac 0 Vac 60 Vac Brake Model Number Part Number Rexnord Industries, LLC Stearns Division 550 S. International Drive Cudahy, Wisconsin 50 () 7-00 Fax: () Copyright by Rexnord Industries, LLC

51 Spring-Set Disc Brakes Parts List for (rev. A & B) Manual Adjust Brakes BK TO PRODUCT PAGE P/N effective 0//08 For Installation and Service Instructions refer to sheet part number Instructions and parts list also available at Tools required for installation and servicing: /8 hex wrench 5/6 nut driver 5/6 hex wrench / screwdriver /6 hex wrench 8 adjustable wrench Typical Nameplate IMPORTANT Please read these instructions carefully before installing, operating, or servicing your Stearns Brake. Failure to comply with these instructions could cause injury to personnel and/or damage to property if the brake is installed or operated incorrectly. For definition of limited warranty/liability, contact Rexnord Industries, LLC., Stearns Division, 550 S. International Dr., Cudahy, WI 50, () Caution. Installation and servicing must be made in compliance with all local safety codes including Occupational Safety and Health Act (OSHA). All wiring and electrical connections must comply with the National Electric Code (NEC) and local electric codes in effect.. Do not operate the brake in atmospheres containing explosive gases or dusts.. To prevent an electrical hazard, disconnect power source before working on the brake. If power disconnect point is out of sight, lock disconnect in the off position and tag to prevent accidental application of power.. Make certain power source conforms to the requirements specified on the brake nameplate. 5. Be careful when touching the exterior of an operating brake. Allow sufficient time for brake to cool before disassembly. Surfaces may be hot enough to be painful or cause injury. 6. Do not operate brake with housing removed. All moving parts should be guarded. 7. Installation and servicing should be performed only by qualified personnel familiar with the construction and operation of the brake. 8. For proper performance and operation, only genuine Stearns parts should be used for repairs and replacements. 9. After usage, the brake interior will contain burnt and degraded friction material dust. This dust must be removed before servicing or adjusting the brake. DO NOT BLOW OFF DUST using an air hose. It is important to avoid dispersing dust into the air or inhaling it, as this may be dangerous to your health. a) Wear a filtered mask or a respirator while removing dust from the inside of a brake. b) Use a vacuum cleaner or a soft brush to remove dust from the brake. When brushing, avoid causing the dust to become airborne. Collect the dust in a container, such as a bag, which can be sealed off. Caution! While the brake is equipped with a manual release to allow manual shaft rotation, the motor should not be run with the manual release engaged, to avoid overheating the friction disc(s).

52 Information required when ordering replacement parts: Give Part Number of parts or kits needed, Brake Model Number, and Brake Serial Number. The Brake Model and Serial Number may identify special brakes not covered by this parts list. When ordering hubs, specify shaft diameter (hub bore) and keyway. Enclosure is specified as follows: NEMA X (formerly referred to as BISSC washdown) BK TO PRODUCT PAGE AA C Torque (lb-ft).5 and and 5 Current NEMA Enclosure X X X X X X X X X X TABLE Components of Standard or Brake Brake Model Number Item Description Part Number & & & & AA A A B Not Shown C Gasket NEMA (close coupled only) Hardware Kit - NEMA X (rev A & B) Housing & Release Assembly - NEMA X Stationary disc kit ( disc universal; disc horizontal) Stationary disc kit ( disc universal) Stationary disc kit ( disc vertical) DP 6 Vertical spring kit ( disc) Friction disc kit Stabilizing clip Disc pack kit - disc Disc pack kit - disc Disc pack kit - disc Hub and set screw assembly disc Hub and set screw assembly & disc Endplate Endplate Endplate & Seal Assembly 5/8 bore 7/8 bore -/8 bore 5/8 bore 7/8 bore -/8 bore disc close coupled & disc disc (NEMA X) & disc (NEMA X) B D E B D E F F Certain multiple friction disc model numbers require a single stabilizer clip (S) added to each friction disc. If your brake has these clips, they must be replaced when the friction disc is replaced. This clip is included as part of the friction disc kit X - Model numbers with the number 8 in the 8th position indicate close coupled brakes. X X X X X X X X X X X X X X X X X X X X

53 BK TO PRODUCT PAGE Torque (lb-ft) NEMA Enclosure.5 & X X X X X X TABLE Components of Support Plate and Coil Assembly 6 8 8R 8W N 0 Support Plate Assy. (Items 6 through and Z) Item Description Part Number Bearing Solenoid lever Retaining ring Spacer W 7 6 9A 6 S Torque adjustment nut Wear adjustment screw Pressure spring Pressure spring Pressure spring Spring washer Lever arm and stop nut assy. Bearing pin Plunger stop Support plate and spring stud assembly ( housing studs) Pivot pin Mounting screws Brakes Z No. solenoid kit (rev A & B) (rev B only) /0 Vac 0/60 Vac No. 5 Vac coil kit 0 Vac Hz 60 Vac /0 Vac 0/60 Vac No. K 5 Vac coil kit 0 Vac Hz 60 Vac /0 Vac /60 Vac No. K+ 5 Vac coil kit 0 Vac Hz 60 Vac /0 Vac 0/60 Vac No. M+ 5 Vac coil kit 0 Vac Hz 60 Vac CC Brake release interlock switch (optional) Brakes No. + coil 5 Vdc assembly 0 Vdc No. K + coil 5 Vdc AD assembly 0 Vdc No. M + coil 5 Vdc assembly 0 Vdc No. P + coil 5 Vdc assembly 0 Vdc /8 Vdc BD Electronic 5 Vdc switch kit 0 Vdc

54 Solenoid and Coil Assembly Optional Modification Kits BK TO PRODUCT PAGE Item A A Z TABLE Contents of Kits and Assemblies Kit Description AD BD Hardware kit NEMA X ( ) Endplate oil seal Drain plug Housing nuts Housing nut seal washers Endplate conduit pipe plugs Housing-to-endplate gasket Stationary disc kit ( ) Stationary disc Stationary disc kit ( ) Stationary discs with springs TABLE Catalog Mod Number Description Torque (lb-ft).5, & 6 Brake Model Number Part Number Torque (lb-ft).5 & 6 & 0 0 & 5 5 & 0 0 & 5 M Brass Stationary Disc M Space Heater 5 Vac 0 Vac M7 Terminal Strip M Vertical Spring Kit ( disc) ( disc) X X X X X X X 5 DP 6 Z AD BD CC Friction disc kit ( ) Friction disc Stabilizing clips Disc pack kit ( X-00), or Friction disc(s), or Stationary disc(s) Stabilizing clips ( only), 6 or 9 Stationary disc separator springs Hub and set screw assembly all types, all bores ( ) Brake hub Set screws No. solenoid kit ( ) ( ) Plunger Solenoid link Frame (including mounting bracket) Solenoid link cap screw Solenoid link nut Solenoid mounting screws No. coil kit (5-66-6XX-X and coil assembly (5-96-6XX-X) Coil / Top Plunger guide / Wire nut switch kit ( X-5) Electronic switch Mounting bracket Bracket mounting screws Switch mounting screws Nuts Lock washers 5 Crimp connectors Brake release interlock switch ( ) Microswitch Mounting bracket Bracket mounting screws Switch mounting screws Lock washer Nuts Lead wire assembly Catalog Mod Number M6 No. Class H coil kit 60 Hz No. K Class H coil kit 60 Hz No. K+ Class H coil kit 60 Hz No. M+ Class H coil kit 60 Hz Description 5/0 Vac 0/60 Vac 5 Vac 0 Vac 60 Vac 5/0 Vac 0/60 Vac 5 Vac 0 Vac 60 Vac 5/0 Vac 0/60 Vac 5 Vac 0 Vac 60 Vac 5/0 Vac 0/60 Vac 5 Vac 0 Vac 60 Vac Brake Model Number Part Number Rexnord Industries, LLC. Stearns Division 550 S. International Drive Cudahy, Wisconsin 50 () 7-00 Fax: () Copyright by Rexnord Industries, LLC.

55 Information Needed for Modifications Stearns is dedicated to providing you with the most comprehensive selection of modified spring-set disc brakes on the market today. We have included a list of our more popular modifications complete with descriptions, pictures and graphics when applicable and list price adders along with their representative series. Note that modification list prices are subject to the same discounts as apply to the complete brake assembly. Below please find examples of how the modifications are called out with a letter in the 8th position of the digit model number. Note that these listings are not complete, but represent our more popular selections. For any special applications and modification requirements not found here, please contact your Stearns representative. IMPORTANT The modification letter will appear in the 8th position to call out the modification. Examples: -056-XXX- X 8th position -087-XXX- X -08X-XXX- X 8th position 8th position See specific tables for some of the available options of the series required. If two or more letter modifications are required, the 8th position of the part number will remain zero and position 0, and will be assigned by Stearns as a special part number. All Modification Vertical Mounting - Above Motor Class H Insulation Space Heater (5 Volt Circuit) Space Heater (5 Volt Circuit), Brass Pressure Plate and Stationary Disc Brass Pressure Plate and Stationary Disc Vertical Mounting - Below Motor Thru-Shaft Housing (Standard) Vertical Mounting - Above Motor and Class H Insulation Electrical Release Indicator Switch, N.O. contacts Side Manual Release with Shaft Through Housing Stamped Steel 87,X00 Only Vertical Mounting - Above Motor, Brass Pressure Plate and Stationary Disc 8,X00, 8,X00 87,000 and 87,00 Side Manual Release Letter A H I J K L Q T W Z N Y Solenoid Actuated Brakes Modification Index Category Coils Corrosion Resistance Endplates Friction Discs Gaskets Hubs/ Brake Shaft Machining Options Manual Adjust Manual Release Mounting Nameplates Paint/ Special Finish or Material Special Housing Switches Tach Mounting Torque Derating Wiring Options Description Description Modification Number (M ) Page Class H Insulation M6 5 Coil Option M9 5 Non-Standard Voltage M5 57 Non-Standard Voltage M9 5 Special Leadwire Length M 58 Brass Pressure Plate M 5 Brass Stationary Disc M 5 Breather Drain M5 5 Space Heater (5 or 0 volt) M 5 Special Paint M 55 Stainless Steel Self-Adjust M5 55 Stainless Steel Hardware M6 55 Corrosion-Resistant Endplate M9 59 Stainless Steel Hub M 59 Special Internal Leadwire Hole M5 58 Corrosion-Resistant Endplate M9 59 Special Milling: Flat Bottom on Housing & Endplate M0 59 Special Material Friction Disc M 60 Carrier Ring Disc (Cast Iron) M6 60 Carrier Ring Disc (Bronze) M7 60 Motor Gasket M8 59 Viton Gasket M 60 Non-Standard Bore or Keyway M 5 Special Shaft - Coupler Brakes M9 57 Taper-Lock Hubs M0 58 Stainless Steel Hub M 59 Splined Hub and Friction Disc M5 60 Encoder/Tach Machining M7 5 Metric Machining M 58 Special Milling: Flat Bottom on Housing & Endplate M0 59 Manual Adjust for 87,000 M8 60 Side Manual Release M 5 Non-Maintained (Deadman) M 58 Internal Release M7 59 Vertical M, M, M Metric Machining M 58 Motor Frame Adapters 9 Foot Mounting Kits 95 Mylar or Metal M0 5 Brass Nameplate M 59 Brass Pressure Plate M 5 Brass Stationary Disc M 5 Special Paint M 55 Stainless Self-Adjust M5 55 Stainless Steel Hardware M6 55 Corrosion-Resistant Endplate M9 59 Stainless Steel Hub M 59 Thru-Shaft NEMA M9 56 Thru-Shaft NEMA and X M0 56 Split Housing M6 59 Electrical Release Indicator M 5 Electrical Release Indicator Proximity Switch M 5 Thermal Switch M8 55 Wear Indicator M7 57 Tach Machining M7 5 Thru-Shaft NEMA M9 56 Thru-Shaft NEMA and X M0 56 Brass Pressure Plate M 5 Brass Stationary Disc M 5 Special Derating of Torque M 58 Conduit Box with Terminal Strip M8 5 Terminal Strip M7 55 Special Length Leadwires M 58 Internal Leadwire Hole M5 58 5

56 M Electrical Release Indicator Switch This switch is used to indicate when the brake is in a released, non-holding position. This mechanism utilizes a mechanical limit switch. 56,X00 & 65,00 8,000; 8,000; 87,X00 86,X00 List Price Adder $ ,000 87,000 (also representative of 8,000; 8,000 and 86,000 ) Not available on 56,800 or 87,800 Brakes. M Electrical Release Indicator Proximity Switch Same function as the switch in M above; except, M uses an electronic proximity sensor. 8,000 8,000 87,X00 86,X00 List Price Adder $ Not available on 56,800 or 87,800 Brakes. M Brass Pressure Plate Typically used in marine applications or in applications where the potential for sparks need to be eliminated. Brass can also be used to reduce torque. 56,X00 65,X00 8,000; 8,000 86,X00 87,X00 List Price Adder See M $ M Brass Stationary Discs Used with brass pressure plate (List per disc). List Price Adder 56,X00 $ ,X ,X ,000; 8, ,X

57 M5 Breather Drain A drain plug is tapped into the bottom of the housing to let moisture escape. This option is only available on brakes with cast aluminum or cast iron housings. List Price Adder 56,X00 $ ,X ,000 8,000 86,X00 86,X00 87,X M6 Class H Insulation Brake is provided with an epoxy encapsulated coil, rated for NEMA Class H designation. These Class H coils are standard on hazardous location brakes. List Price Adder 56,X00 $ ,X ,000 8, ,X M7 Housing Machining for Encoder/Tach Mounting Standard Machining Close Tolerance Tether Mount Bolt Circle & Register Bolt Circle - but no Register Bolt Circle & Register A Single Bolt Hole Open Enclosure List Price Adder Enclosed 5 List Price Adder Open Enclosure List Price Adder Enclosed 5 List Price Adder Open Enclosure List Price Adder Enclosed 5 List Price Adder Standard Machining: The housing is machined for a thru shaft, and to allow for an encoder or tach to be mounted. This option is only available on brakes with cast aluminum or cast iron housings. Consult factory for availability. Close tolerance: The housing and endplate are assembled and dowel pinned together - then machined as a matched set for a through shaft and encoder mounting. This option is only available on brakes with cast aluminum or cast iron housings. This option is recommended for 8,000; 8,000; and 86,X00 due to the long distance between the motor and encoder. Tether Mount: The housing is machined for a through shaft, and a single tapped hole for a bolt to secure a tether arm. (56,X has a through hole and tach-welded nut on inside of housing, instead of a tapped hole). Maximum Thru-Shaft Dia. (inch) Open Enclosure List Price Adder Enclosed 5 List Price Adder 56,X00 (except N/A for 56,800) N/A N/A N/A N/A N/A N/A $50 $60 87,000-87,00 $700 $,00 $80 $50 $,50 $,750.6 $0 $50 87,M00-87,500-87,600 N/A $,00 N/A $50 N/A $,750 N/A $50 8,000-8,000 6 $,00 $,75 $05 $580 $,550 $,85.5 $65 $70 86,000 $,00 $,75 $80 $780 $,550 $,950 $50 $90 Referred to on the product pages in the catalog as IP 5 Referred to on the product pages as IP5/55 (these enclosure ratings no longer apply when the housing is machined for this modification - the customer is responsible for meeting any specific enclosure rating when assembling the encoder. 6 M7 Modification for 8,000 and 8,000 will also require the M Modification; the side manual release. M8 Conduit Box with Terminal Strip A terminal strip is located inside the conduit box. It allows for easy connection and identification of lead wires. All series except hazardous location (not available for the 8,00 series) All hazardous location brakes List Price Adder $00.00 (IP ) $ (IP 5) $

58 M9 Coil Option For voltage applications. Operates with an electronic switch module. List Price Adder Additional Adder for Non-Standard Voltage 56,X00 $ $ ,X , , ,X For standard voltage listing, see the ordering information section for the specific brake. Not available on Hazardous Location Brakes. M0 Nameplates To order new brake nameplates, the serial number of the brake is required. A loose nameplate shipped from Stearns Division without being attached to a brake must have all agency markings removed (UL, CSA, etc.). In order to have a brake renameplated with the appropriate agency markings, it must be returned to Stearns Division for product verification. List Price: Net Price: First Nameplate Additional Mylar Nameplates Additional Metal Nameplates $ M Nonstandard Hub or Keyway For standard bore diameter and keyway specifications, see specific brake selection page. For taper bores, consult factory for pricing. Description All Quantities and Enclosures 8,00 $ ,X List Price Adder 8,000 65,X00 8,000 86, ,000 87,00 87, , M Side Manual Release Side release not available on the Sheet Metal Housing (IP Only) List Price Adder 56,000; 56,00; 56,500 $ ,000; 87,00 $50.00 Cast Iron Housing List Price Adder M $85.00 includes casti 87,000 IP iron housing adder of $0 87,000 IP 5 $ ,000 $ ,000 Space Heater (5 or 0 Volt Only) A space heater cartridge is used to prevent moisture build-up inside the brake housing. Wattage List Price Adder 56,X00 5 $0.00 8,000; 8,000; 86,X00 50 and ,X00 5 to Hazardous Duty Brakes 5 to Not available on 56,800 or 87,800 Brakes 56,000 87,000 (also representative of 8,000; 8,000 & 86,000 ) 5

59 M Special Paint Based on a zinc chromate finish, both inside and outside of brake. Consult factory for actual application. 56,X00 65,X00 8,000, 8,000, 86,X00 87,000 List Price Adder $ M5 Stainless Steel Self-Adjust Mechanism For severe duty applications. This option includes a stainless steel pinion and plated wrap spring in the auto-adjust mechanism. It is only available on the 8,000; 8,000; 86,000 and 87,000 Brakes 8,000; 8,000; 87,000 86,X00 List Price Adder $50.00 $ self-adjust mechanism M6 Stainless Steel Hardware All external hardware is provided in stainless steel. 8,00 56,X00, 87,X00 8,000, 8,000 86,000 List Price Adder $5.00 $50.00 $75.00 M7 Terminal Strip A terminal strip is located in the inside of the brake, on the support plate. It allows for easy connection and identification of lead wires. ALL List Price Adder $ ,000 87,000 (also representative of 8,000; 8,000 & 86,000 ) M8 Thermostat (thermal switch) This switch is used to indicate when a brake is overheating. Thermostats are standard in 8X,00 and 65,X00. This option is for NON-UL brakes only. 87,X00 Switch Operation Specificatons Normally Closed: Opens at 95 F, Closes at 55 F List Price Adder $ ,000, 8,000 Normally Closed: 86,X00 Opens at 0 F, Closes at 80 F ,X00 Normally Closed: Opens at 95 F, Closes at 75 F

60 M9 Through-Shaft Enclosure This configuration allows for the motor shaft to extend beyond the housing of the brake. M0 Through-Shaft Cast Iron Enclosure with Lip Seal This configuration allows the motor shaft to extend beyond the housing of the brake with a bushing to use with a housing lip seal. 56,000, 56,00 56,00, 56,00 56,600 8,000, 8,000 86,000 87,000, 87,00 sheet metal 87,000, 87,00 with cast iron housing N/C $ N/C 5.00 (adder for cast iron housing is $0.00 additional) Up to -5/6. Above -5/6, add $ ,00, 56,00 56,600 8,000, 8,000 86,000 87,000, 87,00 List Price Adder List Price Adder $ M Vertical Mounting for 56,000 & 65,00 The 56,000 0 and 5 lb-ft Brakes are shipped with spring kits. Vertical modification at 5 from horizontal. Read installation and service instructions for details on its use. Description Factory assembly for three disc configuration. List Price Adder $0.00 Example of 56,000 spring requirements for vertical above and below mounting. M Vertical Mounting for 87,X00 For factory modification to vertical above or below application. Vertical modification at 5 from horizontal ,000 & 87,00 Torque Value (lb-ft) 6, 0, 5, 5 & 5 IP & IP 5 steel hsg Above $95.00 IP & IP 5 steel hsg Below no mod req d IP 5/55 cast iron Above $70.00 IP 5/55 cast iron Below no mod req d 50 & 75 $05.00 $05.00 $80.00 $ $5.00 $5.00 $0.00 $5.00 Includes adder for side manual release 87,00; 87,800; 87,700 Torque Value (lb-ft) Vertical Above Vertical Below 6, 0, 5, 5 & 5 $95.00 no mod req d 50 & 75 $05.00 $ $5.00 $5.00 Example of 87,000 spring requirements for vertical above mounting.

61 M Vertical Mounting for 8,000; 8,000 and 86,000 These brakes require factory modifications for vertical applications. Vertical modification at 5 from horizontal. 8,000 & 8,X00 8,000 & 8,X00 8,X00 8,X00 86,000 IP Torque Above & Value (lb-ft) Below 5 & & 750 $ IP 5 Above $ Includes adder for side manual release IP 5 Below $ Example of 8,000 pin, spring and spacer requirements for vertical above mounting. M5 Voltage Non-Standard () For standard voltage listing, see the ordering information section for the specific brake. 8,00 65,X00 56,000 8,000; 8,X00 86,X00 87,X00 List Price Adder $ M7 Wear Indicator (Friction Disc) Switch with Leads A mechanical switch is installed to indicate when the friction disc requires replacement. 8,000; 8,X00 86,000 87,X00 N/A on 87,800 List Price Adder $ ,000 Assembly 87,000 Assembly M9 Special Shaft-Coupler Brake and Foot Mount Brake Any non-standard input or output shaft on a 56,700, 87,00 or 87,700 Brake. 56,700 87,00; 87,700 List Price Adder $

62 M0 Taper-Lock Hubs For use in severe duty applications and reversing application to secure the brake hub to the motor shaft. 87,000; 87,00 IP only 8,000 8,000 0 to 5 lb-ft 50 to 75 lb-ft 05 lb-ft 5 & 75 lb-ft 0 lb-ft 5 & 75 lb-ft 0 & 0 lb-ft 0 lb-ft List Price Adder $ M Special Length Lead Wires Up to 5 All List Price Adder $65.00 Over 5 All List Price Adder $0.00 M The brake is mechanically released while the release is pulled into a release position. Once released, the brake sets. M Non-Maintained (Deadman) Manual Release Metric Machining Including Cast Iron Endplate Stearns SAB s can be used with metric motor frames. The following table indicates standard frame capabilities for an IEC B Face mount. 56,00; 56,00; 56,600 & 56,900 56,500 87,000 List Price Adder 56,00, 56,700, $ ,800 & 56,900 56,000, 56,00 & ,500 8,000; 8, & 87,000 86, N/A on 56,00. Standard on 56,00 and 56,600. IEC Frame Sizes B flange in sizes 80; 90 & 00 B5 flange in sizes D6 & D7 B flange in sizes ; & 60 B5 flange in sizes D7; D80; D90; D00 & D B flange in sizes ; & 60 B5 flange in sizes D7; D80; D90; D00 & D List Price Adder $0.00 $0.00 $0.00 M Derating of Torque Stearns industrial SAB s can be custom built to meet your specific torque requirements. M5 Special Internal Lead Wire Hole with Bushing Any non-standard, internal lead wire hole in the endplate. List Price Adder All brakes except hazardous location $75.00 brakes 56,500 87,00 8,000 & 8,000 List Price Adder $ Derate To 6 lb-ft 0 or 0 lb-ft To be approved with application engineering 58

63 M6 Housing Split SAB s can be provided with a split housing. 8,000; 8,000 & 86,000 8,000; 8,000 & 86,000 gasketed 87,000; 87,00 sheet metal 87,000; 87,00 cast iron gasketed List Price Adder $75.00 $, $00.00 $50.00 M7 Internal Release An internal manual release requires that the housing be removed before the brake can be released by hand. N/A for hazardous location brakes 87,0XX; 8,0XX; 8,0XX; 86,0XX List Price Adder N/C M8 Motor Gasket The brake is provided with an additional C-Face gasket to be placed between the brake and motor. 8,000; 8,000; 86,000 List Price Adder $ ,X00 & 87, N/A for hazardous location brakes M9 Corrosion-Resistant Endplate Rust preventative treatment applied to brake endplate. 56,00, 56,00, 56,500, 56,800 & 65,00 8,000; 8,X00 & 86,000 87,X00 List Price Adder $ M0 Special Milling: Flat Bottom on Housing & Endplate This modification is provided in the event the flange between the endplate and housing interfere with the mounting configuration. 8,000; 8,000 & 86,000 List Price Adder $ M Brass Nameplate with Special Engraving Brass nameplates offer greater durability in outdoor applications. 8,000; 8,000 & 86,000 List Price Adder $75.00 M Stainless Splined Hub Stainless steel splined hubs are available for extreme outdoor applications, to prevent corrosion on the disc and hub interface. 8,000; 8,000 & 86,000 87,000 List Price Adder $

64 M Viton Gasket Gaskets and o-rings in brakes can be provided in Viton (flourocarbon) material, in place of the standard neoprene. However, the V-wiper steel-backed seals that are used on pull rod manual releases are not available in Viton and remain as neoprene. Viton is a registered trademark name of DuPont. List Price Adder 8,000; 8,000; 86,000 $, ,000 $, ,000 $ Viton gaskets and o-rings are standard for 87,X00 series, except for hazardous location brakes where Viton seals are N/A. Except series 56,00; 56,700; & 56,900 - where Viton gaskets are standard. M Special Friction Disc (per Disc) Any non-standard friction disc in a brake. Cost is per disc. Non-standard discs include: hi-inertia friction discs and heavy duty friction discs. Does not include carrier ring friction discs (see M6 and M7). 87,000 56,000 List Price Adder $ M5 Splined Hub and Friction Disc List Price Adder Torque (lb-ft) List Price Adder Standard on most models. Used for severe duty and reversing applications. 87,00 No Charge 87,X lb-ft & 75 lb-ft lb-ft Spline is standard on this series. Adder is for pre-revision -tooth spline. M6 Carrier Ring Friction Disc The friction material is bonded to a steel or zinc/aluminum alloy ring. This is used for severe duty applications and applications where people are being moved. Carrier ring material List Price Adder (per disc) Horizontal Use Only 56,X00 (not available on 56,800 Aluminum $0.00 series) 8,000 Steel ,000 Steel Horizontal or Vertical Use 87,X00 (not available on 87,00 or 87,800 series Zinc aluminum alloy M7 Carrier Ring Friction Disc (Bronze) The friction material is bonded to a bronze ring. This is used for severe duty applications and applications where people are being moved. Horizontal applications only M8 Only available with pre-revision design, -tooth splined hub, which is included in this price,08x,000 Manual Adjust Mechanism Excellent for holding applications when disc wear is not a concern. (Not available on hazardous location brakes.) List Price Adder (per disc) 8,000 N/A 8,000 $ , ,X lb-ft 50 & 75 lb-ft 05 lb-ft List Price Adder 87,000 Subtract $50 List 8,000 8,000 86,000 No Charge M60 Encoders Internally mounted encoders are available in some series brakes, including some hazardous location brakes. See pages 9-50 for series availability and additional information. Maximum Encoder Diameter (in.) -056 N/A -087-E &