Introduction to Armature Actuated Brakes (AAB) Operating Principle. Engaged Condition (power off) Disengaged Condition (power on)

Transcription

1 Introduction to Armature Actuated Brakes (AAB) The Armature Actuated Brakes are spring-set, electrically released, friction devices, which develop holding and braking torque in the absence of electrical power. This type of brake can decelerate and hold a rotational load or can be ordered to provide a holding function only, where the motor is used as the dynamic brake. AAB s are available to meet a wide range of braking requirements. Available sizes range from 3 lb-in up to 300 lb-ft static torque, in a variety of mounting options. A short hub is available for face mounting or to provide for maimum space efficiency. Features include Class H magnet wire coils, corrosion resistance, and optional manual release lever. Custom designs and modifications are possible; consult the factory for more information. Operating Principle A hub which is attached to the shaft supports the rotatable friction disc. Brake torque is developed when springs apply a clamping force between the brake armature, friction disc and pressure plate. When electrical power is applied, the armature is pulled by the electromagnetic force in the magnet body assembly which overcomes spring action allowing the friction disc to rotate freely. When electrical power is interrupted, the electromagnetic force is removed and the pressure spring will mechanically force the armature plate to clamp the friction disc between itself and the pressure plate, thereby torque is developed. Engaged Condition (power off) Disengaged Condition (power on) Continued on net page

2 Product Overview Series 310 & 311 Pages 7-70 Delivers high torque in a compact package for servo and stepper motor applications s ranging from 8 to 00 lb-in, (.9 to.2 Nm) of torque Series 331 & 333 NEMA C-Face Adaptors for NEMA frame sizes 8C through 0TC/UC Enclosed version available in NEMA 8C through 21TC Pages 82-8 Series 320 Pages Series 30 Pages 8-8 Commercial duty, for small gear motors Pressure plate mounted, IP enclosure, ideal for Portal Crane applications. s ranging from 3 to 0 lb-in (.3 to. Nm) of torque sizes ranging from lb-ft ( Nm). Series 321 Totally - Enclosed Non-ventilated (TENV) & Series 322 IP Enclosure s from 3 to 72 lb-in (.3 to 8.1 Nm) of torque Pages 73-7 Series 30 Magnet-body mounted brake in an IP- enclosure. Ideal for Portal Crane applications. sizes ranging from lb-ft (80-00 Nm). Pages Series 321 NEMA C TENV Pages Proving Switches and AC Rectifiers Pages Direct mounting to 8C and C motors s from 1. to 2 lb-ft (2 to 3 Nm) of torque For use with AAB Series 333, 30, and 30 Series 331 & 333 Pages 79-80, 8 Pages 9-9 High performance brake for metric/iec applications. Direct drop-in for Kebco, Lenze, and Binder. AAB Modifications Description, Availability, and Pricing s ranging from 3 to 300 lb-ft, ( to 00 Nm) of torque

3 Armature Actuated Brakes (AAB) Selection Select the proper torque rating based on horsepower and rpm (speed at the clutch or brake) using the Selection Chart below. Based on 1. service factor. For other service factors and speeds, use the formulas shown below. Formula for TABLE 1 Formula for TABLE 2 T = Static torque, lb-in. P = Horsepower, hp N = Shaft speed at brake, rpm SF = Service Factor 3,02 = Constant T = Static torque, lb-ft. P = Horsepower, hp N = Shaft speed at brake, rpm SF = Service Factor,22 = Constant Caution: Do not use Table 1 to select brakes for overhauling or high inertial loads, or where a stop in specified time or distance is required. For these applications the total inertia of the load and power transmission system must be determined to make a brake selection. Refer to sections on torque and thermal ratings and determination. NOTE: Series 310 and 311 for holding applications only. TABLE 1 Series 320, 321, 322 Static in lb-in. (Nm) Motor hp TABLE 2 Series 333/30/30 Static in lb-ft. (Nm) rpm Static lb-in (Nm) 1/20 18 (2.03) 7 (.79) 7 (.79) 7 (.79) 3 (.3) 3 (.3) 3 (.3) 3 (.3) 3 (.3) 1/12 18 (2.03) 18 (2.03) 7 (.79) 7 (.79) 7 (.79) 7 (.79) 7 (.79) 3 (.3) 3 (.3) 3 (.3) 1/8 3 (3.9) 18 (2.03) 18 (2.03) 18 (2.03) 18 (2.03) 7 (.79) 7 (.79) 7 (.79) 7 (.79) 3 (.3) 1/ 3 (3.9) 3 (3.9) 18 (2.03) 18 (2.03) 18 (2.03) 18 (2.03) 18 (2.03) 7 (.79) 7 (.79) 7 (.79) 1/ 3 (3.9) 3 (3.9) 3 (3.9) 18 (2.03) 18 (2.03) 18 (2.03) 18 (2.03) 18 (2.03) 7 (.79) 1/3 3 (3.9) 3 (3.9) 3 (3.9) 18 (2.03) 18 (2.03) 18 (2.03) 18 (2.03) 18 (2.03) 1/2 3 (3.9) 3 (3.9) 3 (3.9) 3 (3.9) 18 (2.03) 18 (2.03) 3/ 3 (3.9) 3 (3.9) 3 (3.9) 3 (3.9) 1 3 (3.9) 3 (.3) Motor hp (kw) rpm Static lb-ft (Nm) 1/3 (.2 ) 3 () 3 () 3 () 3 () 3 () 3 () 3 () 3 () 1/2 (.37) 12 (1) 3 () 3 () 3 () 3 () 3 () 3 () 3/ (.) 12 (1) 12 (1) 3 () 3 () 3 () 3 () 1 (.7) 2 (3) 12 (1) 12 (1) 12 (1) 3 () 1-1/2 (1.1) 2 (3) 2 (3) 12 (1) 12 (1) 12 (1) 12 (1) 2 (1.) 2 (3) 2 (3) 2 (3) 2 (3) 12 (1) 12 (1) 12 (1) 3 (2.2) (0) (0) 2 (3) 2 (3) 2 (3) 2 (3) 12 (1) 12 (1) 12 (1) 12 (1) (3.7) 0 (80) 0 (80) (0) (0) 2 (3) 2 (3) 2 (3) 2 (3) 2 (3) 12 (1) 7-1/2 (.) 110 (10) 110 (10) 0 (80) 0 (0) (0) (0) (0) 2 (3) 2 (3) 2 (3) 10 (7.) 180 (20) 110 (10) 110 (10) 110 (10) 0 (80) (0) (0) (0) 2 (3) 2 (3) 1 (11.2) 300 (00) 180 (20) 110 (10) 110 (10) 110 (10) 0 (80) 0 (80) 0 (80) (0) (0) 20 (1.9) 300 (00) 180 (20) 180 (20) 180 (20) 110 (10) 110 (10) 110 (10) 0 (80) 0 (80) 0 (80) 2 (18.) 30 (22.) 0 (29.8) 0 (37.3) 0 (.7) Eceeds maimum speed rating. 300 (00) 300 (00) 180 (20) 300 (00) 300 (00) 180 (20) 300 (00) 300 (00) 180 (20) 180 (20) 300 (00) 300 (00) 300 (00) 110 (10) 180 (20) 180 (20) 300 (00) 300 (00)

4 Series : 10 to 30 lb-in (1.1 to 39. Nm) UL Recognized Class H coil insulation system to US Standards (UR) and Canadian National Standards (CUR) - File E12303 Spring activated and DC voltage released High torque, Compact size Corrosion resistant finishes Standard voltages 2 and 90 Vdc 11 and 230 Vac Available voltages 12, 3, 8 and 180 Vdc Low inertia rotating parts Splined hub for quiet dependable operation Holding applications only Installation and Service Instructions: P/N Option A, Long Hub Dimensional Data Model Number Mounting Screw Hub Location ØC D E Maimum Hub Lengths B K F G H Overall J L Mounting Screw thru Mag. Body #2 (M2) # (M3) #8 (M) #10 (M) 1/ (M) 1/ (M) Ø1.0 (1.) Ø1.770 (.98) Ø2.00 (3.00) Ø2.913 (73.990) Ø3.70 (9.20) Ø.00 (11.300) /1 (8mm) /1 (8mm) /8 (1mm) /8 (1mm) 7/8 (22mm) 1/1 (2mm).0 (10.31).0 (10.31).20 (13.21).700 (17.78).700 (17.78).800 (20.32).0 (1.22).2 (10.80).2 (1.88) 1.12 (28.8) 1.00 (38.10) 1.70 (.).91 (23.22) 1.0 (2.92).99 (2.2).927 (20.) (30.81) 1.33 (33.93) (3.23) 1.18 (30.10) 1.32 (33.) (30.23) (30.99) 1.30 (1.0) 1.72 (.0) 1.90 (8.39) (33.3) (.7) (37.3) 1.37 (3.93) 1.7 (3.7) (8.9) 2.03 (1.7) (.) 2.00 (0.80) 2.87 (72.89) 3.3 (8.09).2 (107.9).00 (127.00).3 (9).8 (21.).70 (19) 1.08 (27.) 1.08 (27.) 1.02 (27) 7

5 Series 310 Continued Engineering Specifications/Pricing (Discount Symbol R1) Nominal Static Friction Approimate Weight Electric Power Hub and Disc Inertia lb-in Nm Material Type lbs kg (watts) lb-in-sec 2 kg-cm-sec $ Holding E E $ Holding E E-0 $ Holding E E-0 $ Holding E-0 1.8E-0 $ Holding E E-0 $ Holding E E-03 $1,20.00 Ordering Information Group 3 Armature Acting Brake =Standard 3= Reduced 3-10: For AAB-S Models AAB-S Unit s H-JA Options TABLE 3 Voltages TABLE 2 Hub bore and Keyseat TABLE 1 Options Available by size 0 standard brake ALL H Quiet operation, 1.79, 2.0, 2.87, plastic carrier disc 3.3,.2 With carrier disc option, size 3.3 torque is 0 lb-in holding, and size.2 torque is 100 lb-in holding Numeral or Letter Options 1 Standard Unit Table 1: hub bores to insert 0D 0F 0H 0J 0L 0N 0O Bore +001/.001 1/ /1 3/8 1/2 /8 3/ 7/8 Width inches 1/1 1/1 3/32 1/8 3/1 3/1 3/1 -JA Keyway Depth inches 1/32 1/32 3/ 1/1 3/32 3/32 3/ Bores Available () Numeral Enclosure type 0 None Table 2: Coil Voltage H- to insert Voltage List Adder A Current Rating in amps C 12 Vdc $ E 2 Vdc G 8 Vdc J 90 Vdc L 180 Vdc N 11 Vac P 230 Vac P 1/1 Metric 1/ mm 1/8 mm These voltages are non-standard. Add $0.00 for non-standard coil voltage Table 3: Options H-J Options Available by size A Basic Brake, Magnet Body 1.79, 2.0, 2.87, 3.3 Mounted, Long Hub.2, s 3.3,.2 and.0 have a pass-through hub NOTE: Non-standard bore sizes available, contact factory. Add $0.00 for non-standard bore size. 8

6 Series 311 : 7 to 00 lb-in (8. to.2 Nm) UL Recognized Class H coil insulation system to US Standards (UR) and Canadian National Standards (CUR) - File E12303 Spring activated and DC voltage released Corrosion resistant finishes Standard voltages 2 and 90 Vdc Available voltages 12, 3, 8 and 180 Vdc Low inertia rotating parts Splined hub for quiet dependable operation Holding applications only Installation and Service Instructions: P/N Dimensions in Inches (mm) Model Number K N ØC Maimum 2.00 Qty. 2 # (3.00) (180 ) apart UNC (8.72) 3.12 Qty. # (79.37) (90 ) apart UNF (120.0) (9.80) B A AK D Hub Lengths 1.00 (2.).2 (1.27) E (3.1) 2.30 (9.90) Hub Location F.30 (7.20).1 (.0) G (0.77) (8.70) H.383 (9.728).93 (12.22) J (8.82).70 (120.) M.30 (9.1). (11.811).70 Qty. 1/ (120.0) (0 ) apart UNC (133.3) (88.900).20 (1.7) (8.72).0 (1.20) 2.0 (.1). (1.2).00 (127.00).2 (1.87) NOTE: Mounting bolt circles, mounting hole thread sizes, and quantity of mounting holes can be changed to meet your requirements. Please contact factory to request mounting dimensions other than those shown here 9

7 Series 311 Continued Engineering Specifications/Pricing (Discount Symbol R1) Nominal Static lb-in Nm Friction Material Type Approimate Weight lbs kg Electric Power (watts) Hub and Disc Inertia lb-in-sec 2 kg-cm-sec holding E-0.99E-0 $ holding E E-03 1, holding E E-03 1,3.00 Ordering Information Group 3 Armature Acting Brake 3-11: For AAB-S Models AAB-S Unit s Standard - Holding H-JA Options TABLE 3 Voltages TABLE 2 Hub bore and Keyseat TABLE 1 Modifications 0 = Standard model Numeral or Letter Options 1 Standard Unit Table 1: hub bores to insert 0B 0D 12 Bore +001/.001 /8 7/8 Metric 12 Width inches 3/1 3/1 mm -JA Keyway Depth inches 3/32 3/32 mm 1.8 Bores Available () E 1-1/8 1/ 1/8 0G 1-3/8 1/ 1/8 0M 1-1/2 1/ 1/8 to insert C E G J L Numeral Enclosure type 0 None Table 2: Coil Voltage H- Voltage 12 Vdc 2 Vdc 8 Vdc 90 Vdc 180 Vdc A List Adder $ These voltages are non-standard. Add $0.00 for non-standard coil voltage Table 3: Options H-J Options A Basic Brake, Endplate Mounted, Long Hub Pass-through hub NOTE: Non-standard bore sizes available, contact factory. Add $0.00 for non-standard bore size. Keyseats made to ANSI B17.1 standard. 70

8 Series 320 Armature Actuated Brakes Maintained manual release option (Shown with and without maintained manual release) rating 3 to 0 lb-in / (.3 to. NM) UR and CUR Recognized insulation system, E and sizes 1.8, 2.8 brakes with internal power supply File E-7111 Class B temperature rise with Class H mag wire Available for holding (H) or dynamic (D) stopping applications Corrosion resistance Optional double D friction discs are available in 3-7 lb-in dynamic and 3-1 lb-in holding brakes. DD shafts fit the brake directly without a brake hub, no shaft keyway cost and simplify assembly Optional maintained manual release Optional mounting plates to make conversion over to the superior Stearns product easy Optional AC Rectifiers - internal or eternal in-line Optional band seal (not available for 1.2 size) Installation and Service Instructions: P/N Dimensional Data 1.2D 1.2H 1.8D 1.8H Model Number G G G G Qty. 3 Mounting Screw B Ø.10 #, # (M3) Ø.177 # M3. Optional Manual Release Shown K Ø1. (39.23) Ø2.12 (3.97) Maimum Shaft Length (Manual Release Units) (7.2) (10.92) Hub Location F.8 (17.0).80 (21.8).99 (2.27) F`.01 (.381).01 (.381) Brake E.10 (10.1).0 (11.3) G.890 (22.0) 1.0 (27.0) 1.20 (32.00) A.2 +.0/ / (27.0) 1.20 (31.0) 1.0 (3.9) B H Long Hub.07 ma..07 ma. H3 2. (3.) 3.77 (9.88) Shaft /1 3/8 H C J (10.1) (.9). (10.1) 2.3 (1.72) D D Hub Lengths Long.38 (9.).10 (10.1) E.10 / / / /.37 Short.19 (.83).2 (.3) A 1.92 (8.90) 2. (.77) 2.0D 2.0H G G 3 Ø.1 # (M3) Ø2.220 (.388).30 (10.92).933 (23.70).01 (.381).30 (13.) (30.23) 1.23 (1.22) 3.77 (9.88). (10.1) 2.0 (3.).9 (17.3).31 (7.87) 2.0 (3.0) 2.8D 2.8H G G Ø.188 #8 (M) Ø2.8 (72.738).90 (12.).9 (2.23).00 (1.27) 1.10 (27.9) 1.1 (3.9) 1.3 (3.). (9.88) 2.8 can be pressure plate mounted using the long hub. The F` dimension shown for size 2.8 is for pressure plate mount using the long hub. No thru bore with manual release option.. (10.1) 3.2 (82.).10 (10.1) 3.32 (8.33) 71

9 Series 320 Continued Engineering Specifications/Pricing (Discount Symbol R2) Nominal Static Friction Material Appro Weight Electric Power Hub and Disc Inertia Thermal Capacity Maimum Bore lb-in Nm Type lbs kg (watts) oz-in-sec 2 HP-sec/min in mm Vdc Std Brake With manual Release Double D friction disc Options Adders Carrier ring friction disc Brake release indicator 1.2D G Dynamic /8 9 $180 $230 No charge $20 $80 N/A Consult Factory 1.2H G-- 1. Holding / No charge Not available 80 N/A Band seal 1.8D G Dynamic / No charge $1 1.8H G Holding / No charge D G Dynamic / Not available Not available D G Dynamic / Not available H G Holding / Not available D G Dynamic / Not available H G Holding / Not available Not available For holding applications only. 2 Set Screws located 120 from keyway. 72 Ordering Information Group 3 Armature Acting Brake G-0H-JD AAB-R Unit s Table 1: JD Keyway s to insert Bore Width (in.) Depth (in.) 0A 0B 0C 0D 0E 0F 0G 0H 0J /1 3/1 1/ 1/ /1 /1 3/8 3/8 1/ N/A 1/1 N/A 1/1 N/A 1/1 N/A 3/32 1/8 2 mm 2 mm 2 mm 2 mm 3 mm 3 mm mm N/A 1/32 N/A 1/32 N/A 1/32 N/A 3/ 1/1 1 mm 1 mm 1 mm 1 mm 1. mm 1. mm 1.8 mm 320 = For AAB-R Models Nominal Static (lb-in) 3 Dynamic Holding 7 Dynamic 1 Dynamic 9 Dynamic 1 Holding 18 Dynamic 30 Holding 1 Dynamic 2 Holding 7 Dynamic 3 Dynamic 0 Holding 2 7 Bores Available Mag Body mm 1.8 mm NOTE: For non-standard bores add $ Set screws located 120 from keyway. 2 Hubs are provided without keyway. Keyseats made to ANSI B17.1 standard List Adder $20.00 $ s A D G H Y Numeral Enclosure type 0 None 2 Band seal Table 1A: J (Double D Bores) Bores Available s Bore to insert Mag Body H 0F /1 0H 3/8 NOTE: Can be used up to 1 lb-in for holding. Table 3: Options H-J Options Table 3 Voltages Table 2 Hub bore and Keyway Table 1 For Double D Bores See Table 1A Numeral or Letter Options s to insert 1 A-Z Table 2: H- Standard Coil Voltage Options Standard Unit Reserved for Mounting Plates Basic Brake, Magnet Body Mounted, Long Hub Basic Brake, Pressure Plate Mounted, Short Hub Short Hub, Pressure Plate Mounted with Maintained Manual Release Long Hub with Maintained Manual Release, 2.8 Only Double D Friction Disc, 1.2H, 1.2D, 1.8H Option with Maintained Manual Release Pressure Plate Mounted Short hub not required for size 2.8 pressure plate mount. E F G J S to Insert Voltage Modification Brake release indicator (NC) Brake release indicator (NO) Standard - GGA Friction Material CCW manual release rotation Carrier ring friction disc List Adder D Current Rating in Amps C 12 Vdc E 2 Vdc G 8 Vdc J 90 Vdc K 103 Vdc L 180 Vdc N 11 Vac $ P 230 Vac $ Z 11/230 Vac $ /.0.11/.09.10/.07.10/.097 NOTE: Add $0.00 for non-standard coil voltage For eternal in-line rectifier (for internal rectifier, add $30.00 list) NOTE: o C maimum ambient temperature for all eternal in-line rectifiers NOTE: Final part number may change due to specifications or options selected or other product design considerations. A number such as a 2, 3, etc., in the 12 th position is used to designate a unique brake (custom) and can only be assigned by Stearns Design Engineering Department. Modifications are available - see AAB Modification Section.

10 Series 321 & Series 322 Armature Actuated Brakes Shown: 2.8 with thru-shaft & manual release options Shown: 1.8 flange mount with manual release option 1.2 and 1.8 Totally Enclosed Non-Ventilated (TENV) Direct-Acting Brake - Quiet Operation Rating: 3 lb-in through 72 lb-in Enclosure Rating: 321 Series IP2 322 Series IP UR and CUR recognized insulation system - File E-12303; and sizes 1.8 & 2.8 brakes and 8C & C motor frame brakes with internal power supply File E-7111 Class B temperature rise with Class H mag wire Pressure plate mount Installation and Service Instructions: P/N Optional: Optional double D friction discs are available in 3-7 lb-in dynamic and 3-1 lb-in holding brakes. DD shafts fit the brake directly without a brake hub, no shaft keyway cost and simplify assembly Optional: Maintained manual release lever, or non-maintained pull release Optional: Through-shaft Optional: AC Rectifiers - Internal, or eternal in-line (availability depends on size) 2.8 Manual release option Manual release option Dimensions in Inches (millimeters) Nominal Static Basic Model D Hub A H Lb-in Nm Number Series Mag Body Ø Location 1.2 Dynamic (.9).02 (.1) (22.92) (7.2).0 (1.27) 1.2 Holding (3.0) (.9).02 (.1) (27.32) (7.2).0 (1.27) 1.8 Dynamic (.1) (1.27) 1.8 Holding (.1) (32.918) (3.0) 322 (3.0).0 (1.27) 1.8 Dynamic (.1) (1.27) 2.8 Dynamic (92.9) (3.18) 2.8 Dynamic (92.9) (3.18) 2.8 Holding (92.9) (3.18) Specifications Basic Model Number Nominal Static Lb-in (Nm) 1.2 Dynamic (.3) Holding (.) Dynamic (.79) 1.8 Holding (1.9) 1.8 Dynamic (1.9) Hub Length.19 (.83).2 (.3).100 (2.).2 (.3).100 (2.).2 (.3).100 (2.).2 (.3) Appro. Weight Hub and Maimum Power Disc inertia Thermal Capacity Bore (watts) HP-sec/min lbs kg (Oz-in-sec 2 ) in mm Consult Factory 3/ / Dynamic (3.9) / Dynamic (.) / Holding (8.1) /2 12 Set screws located 120 from keyway 73

11 Series 321 & Series 322 Continued SIZE 1.2 Inside Mount Brake released SIZE 1.2 Flange Mount 321 Series only Brake released SIZE 1.8 Inside Mount SIZE 1.8 Flange Mount NEW 72 mm bolt circle SIZE 2.8 Inside Mount SIZE mm Mount 7 Also, the location of the eternal leads for the 322 series is on the backside of the magnet body - not on the side (as shown in the above drawings) as with the 321 series.

12 Series 321 & Series 322 Continued Options THROUGH-SHAFT OPTION SIZE 1.2 & 1.8 Optional through-shaft - No manual release option SIZE 2.8 Optional through-shaft shown with manual release option (size 2.8 only) DOUBLE - D DISC OPTION Option Hubless option with flatted shaft double D friction disc Brake A.2 +.0/ /-.00 B.07 ma..07 ma. Shaft /1 3/8 C D E.10 / / / /.37 NOTE: Contact factory for Double D disc on brakes greater than 7 lb-in nominal static torque AC RECTIFIERS Eternal In-line (as shown) or Internal Internal rectifier is available only on the 1.8 and 2.8 models. eternal in-line rectifier is a standard option only on the 1.2 model. NON-MAINTAINED MANUAL RELEASE BRAKE RELEASE INDICATOR A mechanical switch which is activated by the manual release lever, and can be used to disconnect power in case of accidental start-up when the brake is manually released. 7

13 Series 321 & Series 322 Continued Pricing (Discount Symbol R2) 321 Series Model 321 Series 322 Series Model 322 Series Options Adders Eternal leads DC Eternal Leads DC Mounting With Standard Mounting With Release Standard Double Carrier Throughshaft manual manual indicator Inside Flange Brake Brake D disc ring disc release Inside Flange release switch 1.2 Dynamic G G $190 $ G N/A $210 $20 N/C $20 $80 $ Holding G G G N/A N/C N/A Dynamic G DG G DG N/C Holding G DG G DG N/C Dynamic G DG G DG 29 3 N/A N/A Dynamic K N/A K N/A 37 3 N/A N/A Dynamic K N/A K N/A 1 7 N/A N/A Holding K N/A K N/A 0 10 N/A N/A mm mount 72 mm mount 2.8 Dynamic MK N/A $30 $ MK N/A $37 $3 N/A N/A $80 $ Holding MK N/A MK N/A 1 7 N/A N/A N/C =No charge N/A =Not Available Mounting bolt circle inside (less than) the outside diameter of magnet body. (BC dimensions shown on page 71) Ordering Information Group 3 Armature Actuated Brakes Series = 321 or Options Table 3 Voltages Table 2 Hub Bore and Keyway Table 1 For Double D Bores See Table 1A 7 0A 0B 0C 0D 0E 0F 0G 0H 0J /1 3/1 1/ 1/ /1 /1 3/8 3/8 1/ Static (lb-in) 3 Dynamic Holding 7 Dynamic 1 Holding 1 Dynamic 3 Dynamic 0 Dynamic 72 Holding no keyway 1/1 1/32 no keyway 1/1 1/32 no keyway 1/1 1/32 no keyway 3/32 3/ 1/8 1/1 2 mm 1 mm 2 mm 1 mm 2 mm 1 mm 2 mm 1 mm 3 mm 1. mm 2 7 Numeral 7 Table 1: Bore Keyway Bores Available s Bore to Insert Width (in.) Depth (in.) Mag Body NOTE: For non-standard bores add $.00. 1Set Screws located 120 from keyway 2 Hubs are provided without keyway Keyseats made to ANSI B17.1 standard Numeral Description Series or Letter 0 Standard Brake 321, 322 Eternal Lead Location A Internal Lead Location 321 or 322 C Eternal leads Thru-Shaft Internal Leads Thru-Shaft Table 1A: (Double D Bores) s to Insert Bore F /1 0H 3/8 NOTE: Contact factory for Double D disc on brakes greater than 7 lb-in nominal static torque. Can be used up to 1 lb-in holding. Table 3: Options s to Insert D G Y Options Short Hub pressure plate mounted Short Hub with Maintained Manual Release Double D Friction Disc Option with Maintained Manual Release Manual release & thru bore size 2.8 only NOTE: Final part number may change due to specifications or options selected or other product design considerations. A number such as a 2, 3, etc., in the 12 th position is used to designate a unique brake (custom) and can only be assigned by Stearns Design Engineering Department. Modifications are available - see AAB Modification Section. Numeral or Letter Modification E Brake release indicator (NC) F Brake release indicator (NO) G Standard - GGA Friction Material J CCW manual release rotation K Star hub and GGA disc size 2.8 S Carrier ring friction disc size 1.8 Table 2: Standard Coil Voltage to Insert Mounting Voltage List Adder Brake Inside Mount D Flange Mount 2.8 Mounting Bolt Circle 3 Flange Mount 2.12 Mounting Bolt Circle M Body Mount 72 mm Mounting Bolt Circle Current Rating in Amps C 12 Vdc E 2 Vdc G 8 Vdc J 90 Vdc K 103 Vdc L 180 Vdc N 11 Vac eternal in-line $ N/A N/A P 230 Vac eternal in-line $ N/A N/A T 11 Vac Internal Rectifier $30.00 N/A U 230 Vac Internal Rectifier $30.00 N/A V 11 Vac eternal in-line $ QuickSet W 230 Vac eternal in-line $ QuickSet Z 11/230 Vac eternal in-line $ Internal rectifier not available on size 2.8 brake with 72mm bolt circle and 1.2 brake NOTE: Other voltages available, contact factory. Add $0.00 for nonstandard voltages NOTE: o C maimum ambient temperature for all eternal in-line rectifiers

14 Series 321 & 322 NEMA C Armature Actuated Brakes High Cycling Brake Direct mounting to 8C and C motors Features TENV totally-enclosed non-ventilated Series 321= IP2 Enclosure, Series 322 = IP Enclosure Out-of-bo torque - No burnishing required Class B temperature rise with class H mag wire Brake housing integrated with mag body creating a heat echanger that keeps the brake coil cool Field replaceable coil Splined hub and friction disc Options Internal rectifier Quick-set rectifiers - for fast response time even when wired directly across motor Maintained manual release Brake release indicator switch Single point torque adjustment- to 0% of nameplate torque Through-shaft Conduit bo Quiet armature actuations Carrier ring friction disc 8C C 77

15 Series 321 NEMA C Continued Engineering Specifications/Pricing (Discount Symbol R2) Motor Frame 8C C 321 Series Model Number Nominal Static Lb-ft (Nm) Ordering Information Standard Brake With manual release 322 Series Model Number Standard Brake With manual release F 1. (2) $ $ F $97.00 $1, F 3 () F , F F 1, , F 8.3 (11) F 1, , G 3 () $89.00 $ G $1, $1, G 1, , G 1, , G 10 (1) 1,2.00 1, G 1, , G 1 (20) 1, , G 1, , G 2 (3) 1,2.00 1, G 1, ,80.00 Group 3 Armature Actuated Brakes Series = 321 or Appro. Weight lbs kg Power (watts) Hub and Disc inertia (Oz-in-sec 2 ) Options Table 3 Voltages Table 2 Hub Bore and Keyway Table 1 = th digit 8C Nominal Static Lb-ft (Nm) 3 1. (2) 3 () 8.3 (11) = th digit C Nominal Static Lb-ft (Nm) 3 3 () 10 (1) 1 (20) 8 2 (3) Table 1: Bore s to insert Bore Keyway 8 9 NEMA frame 8C C Options = 8th digit Mounting = 7th digit Lead Adder location & Description options = th digit 8C C 0 Eternal leads - - Eternal leads & through shaft $3.00 $3.00 A Internal leads - - Bores Available 0B /8 3/1 3/32 8C & C 0D 7/8 3/1 3/32 C only 0K 1/2 1/8 1/1 8C Other bore sizes available. Add $22.00 for non-standard bore sizes. Table 2: Standard Coil Voltage to Insert Voltage List Adder Current Rating in Amps 8C C C 12 Vdc E 2 Vdc G 8 Vdc J 90 Vdc R 0 Vac Half Wave Internal $ V 11 Vac Internal $10.00 QuickSet.2.0 W 230 Vac Internal $10.00 QuickSet.2.0 Other voltages available. Add $ for non-standard voltage. F G Modification Description NEMA frame size 8C C Adder 8C C 0 Standard brake - - S Carrier ring friction disc $ $ Table 3: Options s to Insert D G Options Standard Brake With Maintained Manual Release 78 NOTE: Final part number may change due to specifications or options selected or other product design considerations. A number such as a 2, 3, etc., in the 12 th position is used to designate a unique brake (custom) and can only be assigned by Stearns Design Engineering Department. Modifications are available - see AAB Modification Section.

16 Series 33 Armature Actuated Brakes Direct Replacement for European Brakes - Kebco, Lenze, and Binder The 33 Series have the following design features: Direct Acting rating 3 to 300 lb-ft ( to 00 NM) UL Recognized Class H coil insulation system to US Standards (UR) and Canadian National Standards (CUR) - File E12303 Spring-set and DC voltage released - AC rectifiers optional Product Overview Series 333 torque adjustable Pre-adjusted air gap for easy assembly Corrosion resistance Spline hub for quiet dependable operation Metric and US Customary bore sizes Options: AC rectifiers (full and half wave) See pages 8-89 for rectifier specifications Band seal (boot) Tach/encoder Mounting Manual release - Non- Maintained or Maintained Shaft seal Mounting flange Electronic brake release indicator switch 333 Series Static torque from 3 to 300 lb-ft, with nine different sizes ranging from 72mm bolt circle up to 278 mm bolt circle. can be adjusted down to approimately 0% of the nameplate torque rating. Shown here with optional nonmaintained manual release lever; other options include boot (band seal), end cap plug, through-shaft seal, and many more listed in the AAB Modification Section. 331 Series Basic brake without the torque adjust option. Available in torque ratings from 3 to 300 lb-ft ( to 00 Nm). Manual release optional, can be provided with non-maintained release lever or maintained release bolts. Metric mount; also can be ordered with C- face adaptor or as the C-face Enclosed version, and as Severe Duty. 33 Series with C-face Adaptor Series 331or Series 333 can be provided with a C-face adaptor for motor frames from 8C through 0/0TC, TSC, UC, USC. All other available modifications for the 33 Series can be ordered for this brake. 33 Series Enclosed Series 33 with a C-face adaptor and a brake housing. Order as an IP3 Enclosure with or without eternal manual release: 33B Series for brake without torque adjust 33C Series for brake with torque adjust OR IP Enclosure with the option of internal maintained manual release: 33H Series for brake without torque adjust 33J Series for brake with torque adjust Also Available Series Magnet body is not machined for a manual release option. See ordering information for the 33 Series brakes. 33 Severe Duty Any of the 33 Series can be ordered as Severe Duty, appropriate for high-cycle rate applications. See ordering information for the 33 series brakes. 332 Series Basic brake with the torque adjust option, and the magnet body not machined for the manual release option. See ordering information for the 33 series brakes. Kebco is a Registered Trademark of Kebco, Inc. or its affiliates. Lenze is a Registered Trademark of Lenze Power Transmission or its affiliates. Binder is a Registered Trademark of Kendrion or its affiliates. 79

17 Series 331 (without torque adjust) & Series 333 (torque adjustable) Armature Actuated Brakes Dimensions s 72 thru 170 Basic Model Number lb-ft (Nm) () (1) (32) (0) (80) Basic Model Number D1 Ma B Min. Bore 3 M 3/ /2 3 M /8 3 M /8 3 M M8 7/8 1 3 M8 1-1/8 1 d1 d2 d3 d d Ma. Bore 9/1 1 3/ 1, 20 7/8 22, 2 1-1/8 2, /8 30, 3 1-3/8 3, Thick Plate C Hub length h1 Thin Plate E F Recommended Hub Location No Plate h h AG Set screw location English bores only Without keyway pilot bore. Keyway to DIN 88/3 p9 - standard metric keyway DIN 88/1 p : h2 and h3 dimensions, contact factory. May vary.09 inch. For verification of manual release dimensions, contact factory h w Thick Plate A Thin Plate H No Thick Plate Plate Thin Plate D K N 333 Series only n torque adjust bolts 333 series only 3 3 Specifications - s 72 thru 170/ Unit Pricing (Discount Symbol R3) Bolt Circle (mm) Nominal Static lb-ft (Nm) Inertia (Wk 2 ) lb-ft 2 Kgm Appro Weight lbs (Kg) Ma RPM Power (Watts) Thermal Capacity Hp-Sec/Min 333 adjust brake 331 Without adjust Adder for thick pressure plate Subtract for brake without Pressure Plate Seal (boot) kit Options List Adders Manual Release () (1.03) $7.00 $3.00 $10.00 ($3.00) $22.00 $8.00 $20.00 $ (1.81) (38.00) (1) (3.07) (0.00) (32) (.18) (70.00) (0) (.) , , (80.00) (80) (10.2) ,0.00 1, (92.00) End Cap Plug Thru- Shaft Seal 80

18 Series 331 (without torque adjust) & Series 333 (torque adjustable) Armature Actuated Brakes Dimensions s 19 thru 278 Dimensions Basic Model Number lb-ft (Nm) D1 Ma B Min. Bore Ma. Bore C Hub length E F Recommended Hub Location AG Set screw location English bores only Pressure Plate A No Plate H Pressure Plate No Plate D K N 333 Series only Min. Ma (19) 180 (20) M8 1-3/ /8 M /8, 8 1-7/8, (00) /8 M / Basic Model Number d1 d2 d3 d d h1 Pressure Plate No Plate h2 h3 h Without keyway pilot bore. Keyway to DIN 88/3 p9 - standard metric keyway DIN 88/1 p9 Specifications - s 19 thru 278 / Unit Pricing (Discount Symbol R3) Bolt Circle (mm) Nominal Static lb-ft (Nm) Inertia (Wk 2 ) lb-ft 2 Kgm Appro Weight lbs (Kg) Ma RPM Power (Watts) Thermal Capacity Hp-Sec/Min List Price 333 and 331 Series brakes without Pressure Plate Seal (boot) kit Options List Adders Manual Release End Cap Plug Thru- Shaft Seal (10) (22.7) $3,07.00 $2, (20) (21.3) , , (00) (3.0) , ,

19 Series 331 & Series 333 Armature Actuated Brakes C-Face Mounted Model Number NEMA Frame A AJ AK B D E G H HL Hub Length H1 H3 J L Internal Lead Hole Location F0 72 8C / /180 apart F0 90 8C / /180 apart G0 90 C / /180 apart G0 112 C, 1TC / /180 apart 3-3-0G0 132 C, 1TC / /180 apart 3-3-0H TC / G0 1 1TC / /180 apart 3-3-0H TC / H TC / H TC / None K /32TC- 0/0TC / H TC / None K K /32TC- 0/0TC 32/32TC- 0/0TC / / On these sizes, the brake diameter is larger than the adaptor mounting/bolt circle. On each side of the 12:00 position (the location of second hole is not shown on above drawing) Frame shaft size may require derate of a larger brake. Confirm hub bore. Available Frames/s and Unit Pricing Discount Symbol R3 Model Number Nominal Static Lb-Ft Nm NEMA Frame L min. & ma: size 19 =.187 min. &.79 ma. size 230/278 =.30 min. &.730 ma. Approimate Weight Lbs Kg 333 torque adjust brake F C $ without torque adjust $ F C G C G C G C , H TC-2TC , G C , H TC-2TC , H TC-2TC , H TC-2TC , K /0-0TC/TSC/UC/USC , H TC-2TC. 29.7, K /0-0TC/TSC/UC/USC , K /0-0TC/TSC/UC/USC , , , , , ,8.00,10.00,88.00, , ,

20 Series 331 & Series 333 Armature Actuated Brakes C-Face with Brake Housing IP3 Enclosure Dimensions/ Unit Pricing IP3 Discount Symbol R3 Model Number Nominal Static Lb-Ft (Nm) NEMA Frame HL G H1 H3 L For sizes 19 through 278 with C-Face and housing, see Series 30 or Series 30. Internal lead location, Ø and O on N Bolt circle Approimate Weight Lbs (Kg) 33C torque adjust 33B without torque adjust Manual Release Adder 33-1H (32) 182TC-2TC on R (9.1) $1,10.00 $1,32.00 $ H0 1 (0) 182TC-2TC on R (10.) 2, , IP Enclosure (No manual release/optional Internal manual release) Dimensions/ Unit Pricing IP Discount Symbol R3 Model Number Nominal Static Lb-Ft (Nm) NEMA Frame HL G L Internal lead location, Ø and O on N B.C. Approimate Weight Lbs (Kg) 33J torque adjust 33H without torque adjust Internal Manual Release Adder 33-H (32) 182TC-2TC on R (11.3) $2,38.00 $2, $ H0 1 (0) 182TC-2TC on R (13.1) 3,7.00 3, H (80) 182TC-2TC on R (1.3),72.00, For NEMA 8C and C mounting, see pages 77-78, Series 321/322 NEMA C. 83

21 Series 331 & Series 333 Continued 8 Ordering Information Numeral AAB-E Unit s Group 3 Armature Acting Brake Metric Mount Numeral Description 0 No torque adjust, mag body not machined for manual release 1 No torque adjust 2 With torque adjust, mag body not machined for manual release 3 With torque adjust B Housing with conduit hole, no torque adjust ( 72-1) C Housing with conduit hole, with torque adjust H IP housing, no torque adjust ( ) J IP housing, with torque adjust ( ) Table 1 - Hub Bores EA NOTE: See page 100 for recommended minimum bore size by torque OD-KC Available Bores Bore Keyway Brake (in) Width (in) Depth (in) /8 0V 3/32 3/ std 1/2 0K 1/8 1/1 std std 9/1 0N 1/8 1/1 non std non std /8 0B 3/1 3/32 std std non std 3/ 0C 3/1 3/32 non std non std non std 7/8 0D 3/1 3/32 std std std non std 1 0L 1/ 1/8 non std std non std 1-1/8 0E 1/ 1/8 std std std non std 1-1/ 0F 1/ 1/8 non std non std 1-3/8 0G /1 /32 std std non std non std 1-1/2 0M 3/8 3/1 std non std non std 1-/8 0H 3/8 3/1 std std non std 1-3/ 0I 3/8 3/1 std non std 1-7/8 0J 1/2 1/ std std 2 0L 1/2 1/ non std 2-1/8 0N 1/2 1/ std Metric Width (mm) Depth (mm) Metric Bores Supplied Without Set Screws, circlip recommended std non std std std std non std non std non std std std non std non std non std non std non std non std non std non std std std non std non std non std non std std non std non std non std non std std non std non std non std std non std std non std non std non std non std non std std non std non std non std std std std std std std non std non std non std non std non std std std std std std std non std std std std non std std non std non std std std std non std non std non std non std std std 1.3 std std std to insert Numeral Description 2 Reduced torque with air gap shim 3 Reduced torque (severe duty- long life) Standard 90 Only; 8.3 lb-ft holding applications only Std torque with air gap shim NOTE: Add the following for non-standard bores: s 72 through 132 = $22.00 s 1 through 19 = $29.00 s 230 & 278 = $ Standard U.S. Keyseats made to ANSI B17.1 standard. Standard metric Keyseat DIN 88/1 p9. Keyseat to DIN 88/3 p9. Numeral F G H J K B E Options Table 3 Voltages - Table 2 Hub bore and keyseat - Table 1 Mounting Style Less pressure plate Thin pressure plate ( only) Thick pressure plate NEMA 8C ( 72 & 90) NEMA C ( 90, 132, & 112) NEMA 180/210/20 TC ( 132, 1, 170, 19 & 230) NEMA 280 TC/UC ( 19) NEMA 320/30/00 TC/UC ( 19, 230, 278) Numeral Enclosure Type Standard Seal (boot) kit thru bore Seal (boot) and end cap plug 3 Seal (boot) and through-shaft seal IP Enclosure Contact factory for non-standard coils. Add the following for non-std. coil voltage s 72 through 112 = $ s 132 through 170 = $21.00 s 19 through 278 = $ For separate AC rectifiers see pages Numeral Modifications 0 Standard Table 2 - STD Coil Voltage A Current Rating in Amps Coil to Voltage insert 1/32 Vdc Vdc Table 3 - Options E to Description/Options insert A C J K L R J 90 Vdc K 103 Vdc L 180 Vdc M 20 Vdc S 28 Vdc N 11 Vac N/A N/A N/A N/A N/A N/A N/A P 230 Vac N/A N/A N/A N/A N/A 11 Vac V N/A N/A N/A N/A N/A N/A N/A quickset 230 Vac W N/A N/A N/A N/A N/A N/A quickset In-line rectifier. Add $92.00 to brake list price. In-line quickset rectifier. Add $10.00 to brake list price. Basic brake Option A with non-maintained release Steel hub w/manual release (for press-fit applications) Steel hub, no manual release Internal manual release, non-maintained Maintained manual release (bolts) 278 C 12 Vdc N/A Modifications are availablesee AAB Modification Section

22 Series 30 Armature Actuated Brakes Brake with IP Aluminum Cover Features rating Nm, lb-ft Universal mounting Class H insulation Maintained manual release Corrosion resistance (stainless steel eternal hardware) IP enclosure protection (available in ductile cast iron or aluminum cover) ABS, CSA and CE certification Brake showing space heater and release indicator location Simple wear adjustment with access hole for air gap inspection Metric and US Customary bore sizes C-Face mounting - various adapter plates available for 182TC through 0TSC frame mounting Splined hub for quiet dependable operation Installation Instructions/Parts List: P/N Reverse view showing adapter mounting plate orientation Standard Options AC rectifier (see pages 8-89) Tach/encoder mounting Space Heater 11, 230 or 0 Vac Thru-shaft IEC D and C Flange Conduit Bo- specify F1 or F2 location (F1 location shown) F1 Conduit Bo location shown. F2 location on left side facing brake housing. C AG set NEMA Mount HL Hub B AJ AK Min. Bore Ma. Bore D1 D1 B1 Z L M S P J1 A A J Hub screw frame lb-ft Nm Bolt Location in mm in mm length location TC- 2TSC / TC- 2TSC / TC- 28TSC / TC- 0TSC / TC- 28TSC / TC- 0TSC / TC- 0TSC / Key to DIN 88/3p9-Standard Metric Keyway DIN 88/1p9 D1 & A for Aluminum Cover D1 & A for Ductile Iron Cover Component Materials: Adapter plate - steel (zinc plate) Splined hub - steel (zinc plate) Splined carrier - aluminum Armature - steel (zinc plate) Magnet body - steel (zinc plate) Hardware - steel (corrosion resistant plating or stainless) Cover: T thru 28TS NEMA - Aluminum (anodized) (additional paint optional) 19-32T thru 0TS NEMA - Cast Iron (primed) (additional paint optional) T thru 0TS NEMA - Cast Iron (primed ) (additional paint optional) T thru 0TS NEMA - Cast Iron (primed) (additional paint optional) 8

23 Series 30 Continued UnitSpecifications/Pricing (Discount Symbol R) NEMA Frame Nominal Static lb-ft Nm Ductile Cast Iron Aluminum Cover Ductile Iron Weight/lbs Aluminum Ma RPM Thermal Capacity Hp-Sec/Min List Price Electronic Brake Release Indicator Options Space Terminal IP Conduit Heater Strip Bo TC- 2TSC H H $8,32.00 $0.00 $1.00 $20.00 $ TC- 2TSC H-- 3-7H , TC- 28TSC J-- 3-7J , TC- 0TSC K-- 3-7K , TC- 28TSC J-- 3-8J , TC- 0TSC K-- 3-8K , TC- 0TSC K-- 3-9K , Remote mount device Ordering Information Part number eample: Group 3 Armature Acting Brake (Direct acting with a DC Coil) Mounting Design Numeral Design Pressure Plate Mount 3-7 JCOMEA Options Table 3 Voltages - Table 2 Hub bore and keyset - Table 1 to insert 0G 0M 0H 0I 0J 0L 0N Metric Numeral/ Alpha Numeral 1 Magnet Body Brake Cover Type Ductile Iron Aluminum lb-ft Table 1 - Hub Bores NOTE: See page 100 for recommended minimum bore sizes by torque Keyway Bores Available Bore Width Depth Unit (in.) (in.) /1 / /8 3/ /8 3/ /8 3/ /2 1/ /2 1/ /2 1/ Bore Width Depth /Modification 3 Reduced Standard Numeral Enclosure IP conduit bo H with terminal strip M IP conduit bo Specify F1 or F2 location for conduit bo modification Table 2 - Coil Voltage to Insert Current Rating Coil Voltage E 2 Vdc J 90 Vdc K 103 Vdc L 180 Vdc.2..1 M 20 Vdc B 1/32 Vdc Other voltages available - consult factory For AC rectifiers see pages 8-89 Additional Options Standard Brake Space Heater 11 Space Heater Space Heater 0 3 Brake release indicator NO/NC Brake release indicator NO/NC Space Heater 11 Brake release indicator NO/NC Space Heater 230 Brake release indicator NO/NC Space Heater 0 7 Mounting NEMA 180/210/20 C-face NEMA 280 C-face NEMA 320/00 C-face NEMA 0 C-face Mt NEMA 00 C-face Mt IEC 132 C-face Mt IEC 10 C-face Mt IEC 132 D-face Mt IEC 10 D-face Mt IEC 180 D-face Mt IEC 200 D-face Mt IEC 22 D-face Mt Contact factory for pricing on these mounting options Table 3 - Additional Options No manual release A Maintained release (standard) R H J K L M S T U V W Y NOTE: Final part number may change due to specifications or options selected or other product design considerations. A number such as a 2, 3, etc., in the 12 th position is used to designate a unique brake (custom) and can only be assigned by Stearns Design Engineering Department. Modifications are available - see AAB Modification Section Standard U.S. keyseats made to ANSI B17.1 standard. Standard metric keyseat DIN 88/1 p9. Keyseat to DIN 88/3 p9.

24 Series 30 Armature Actuated Brakes (Magnet Body Mounted) Standard Brake Options Shown with optional conduit bo Reverse view showing adapter mounting plate orientation Features Universal mounting Internal maintained manual release IP enclosure ABS, CE, and CSA Certification Brake gaskets are captive (O-Ring), so parts are not lost during maintenance Brake showing space heater and release indicator location Stainless Steel nameplate (eterior) Modular brake assembly Install and remove brake without having to readjust air gaps Class H insulation Installation Instructions and Parts List: P/N AC Rectifier (see pages 8-89) Tach/encoder mounting Space Heater Electronic brake release indicator Contact Factory for Electronic Wear Indicator Thru-Shaft Optional eternal non-maintained/maintained manual release Optional IP conduit bo mounted on adapter plate. Wiring is not disturbed when brake housing is removed F1 Conduit Bo location shown. F2 location on left side facing brake housing. Dimensional Data s 170 through 278 Model NEMA Frame Note: Dimensions for estimating purposes only. lb-ft Nm B AJ AK Mount Bolt D1 E B1 Z L h2 h3 S P A C HL Hub Hub Location Length TC TC / TC TC / TC TC / TC-0TSC / TC-0TSC / TC S.S. Location Component Materials for 31- Series: Adapter plate - steel (zinc phosphate, prime & paint) Splined hub - steel (zinc plate) Armature - steel (normalized) Pressure Plate - steel (normalized) Magnet body - steel (zinc plated) Housing - ductile iron (primed & painted): Hardware - steel (corrosion resistant plated or stainless) 87

25 Series 30 Continued Specifications/Unit Pricing (Discount Symbol R) NEMA Frame Nominal Static Model Number Thermal lb-ft Nm Capacity Hp-Sec/Min Appro weight lbs. Eternal Maintained/Deadman Manual Release Electronic Brake Release Indicator Space Heater Terminal Strip IP- Conduit Bo TC H0 $, $00.00 $0.00 $1.00 $20.00 $ TC H , TC J0 7, TC H0 8, TC H , TC J0 9, TC J0 9, TC/3-3TC K0 10, TC/3-3TC K0 13, TC L0 13, Ordering Information Part number eample: Group 3 Armature Acting Brake (Direct acting with a DC Coil) 31-7 JCOMES Options Table 3 Mounting Design Numeral Design Magnet Body Mount Voltages - Table 2 Hub bore and keyset - Table 1 88 Numeral/ Alpha Magnet Body Numeral 1 lb-ft Brake Cover Type Ductile Iron Table 1 - Hub Bores NOTE: See page 100 for recommended minimum bore sizes by torque Keyway Bores Available Bore Unit to insert Width Depth (in.) (in.) E / 1/8 0F / 1/8 0G 1.37 /1 /32 0M /8 3/1 0H 1.2 3/8 3/1 0I /8 3/1 0J /2 1/ 0L /2 1/ 0N /2 1/ 0R 2.37 /8 /1 Metric Bore Width Depth Standard U.S. keyseats made to ANSI B17.1 standard. Metric keyseats to DIN 88/1 p9. /Modification 3 Reduced Standard Numeral Enclosure IP Enclosure (standard) H IP conduit bo with terminal strip M IP conduit bo Specify F1 or F2 location for conduit bo modification Table 2 - Coil Voltage to Insert Current Rating Coil Voltage E 2 Vdc J 90 Vdc K 103 Vdc L 180 Vdc M 20 Vdc.1.9. S 28 Vdc B 1/32 Vdc Other voltages available - consult factory For AC rectifiers see pages Additional Options Standard Brake Space Heater 11 Space Heater Space Heater 0 3 Brake release indicator Switch NO/NC Brake release indicator NO/NC Space Heater 11 Brake release indicator NO/NC Space Heater 230 Brake release indicator NO/NC Space Heater 0 7 Wear indicator NO NO A Wear indicator NO/NC Space Heater 11 B Wear indicator NO/NC Space Heater 230 C Wear indicator NO/NC Space Heater 0 D. Mounting/ NEMA 180/210/20 C-face NEMA 280 C-face NEMA 320/00 C-face NEMA 0 C-face Mt NEMA 00 C-face Mt IEC 132 C-face Mt IEC 10 C-face Mt IEC 132 D-face Mt IEC 10 D-face Mt IEC 180 D-face Mt IEC 200 D-face Mt IEC 22 D-face Mt Table 3 - Additional Options Standard - Internal R Maintained Manual Release Eternal Non-Maintained (deadman) and Maintained S Manual Release 0 1 H J K L M S T U V W Y Contact factory for pricing on these mounting options NOTE: Final part number may change due to specifications or options selected or other product design considerations. A number such as a 2, 3, etc., in the 12 th position is used to designate a unique brake (custom) and can only be assigned by Stearns Design Engineering Department. Modifications are available - see AAB Modification Section.

26 AC Rectifiers for use with Armature Actuated Brakes Product Overview NOTE: For brake response times with and without AC rectifiers see page 97. Full Wave A rectifier in which both positive and negative half-cycles of the incoming (AC) signal are rectified to produce a unidirectional (DC) current through the load. The DC output voltage of a full wave rectifier is V DC=.90V AC. Maimum operating voltage is +10% of nominal, frequency 0/0 Hz, maimum ambient temperature range of -0 C to C Half Wave A rectifier in which only alternate half-cycles of the incoming (AC) signal are rectified to produce a unidirectional (DC) current through the load. The DC output voltage of a half wave rectifier is V DC=.V AC. Maimum operating voltage is +10% of nominal, frequency 0/0 Hz, maimum ambient temperature range of -0 C to C Combination Full and Half Wave Provides option of utilizing either full or half wave rectification Maimum operating voltage is +10% of nominal, frequency 0/0 Hz. Maimum ambient temperature range is -0 C to C TOR-AC Full and Half Wave Provides coil turn off nearly as fast as DC side switching. Includes line filter for AC drive applications or whenever electrical filtering is required to protect the rectifier from high-frequency electrical line pulses. Must be switched on/off by a switch in an AC lead of the TOR-AC. Maimum operating voltage +10% of nominal, frequency 0/0 Hz. Maimum ambient temperature range is -0 C to C QuickSet A rectifier that provides a quick brake response time even when the rectifier is permanently wired across the windings of an AC motor. The QuickSet Rectifier detects the decaying, motor generated voltage that occurs when power is removed from the motor circuit, and interrupts brake coil current in response. QuickSet Rectifiers can be specified full wave or half wave. Operating voltage is ±10% of nominal, frequency 0/0 Hz. Maimum ambient temperature range is -0 C to C QuickSet/QuickRelease A rectifier that provides a timed, full wave rectified over-ecitation brake release function, followed by continuous, half wave rectified brake released holding function, when used in conjunction with an appropriate brake coil voltage rating. USED AS WATTSAVER: Provides a timed, full wave rectified brake release function, followed by continuous, half wave rectified brake released wattsaver function, when used in conjunction with an appropriate brake coil voltage rating. The Wattsaver serves to reduce the electrical power consumption and dissipation of the brake in the released state. Operating voltage is ±10% of nominal, frequency 0/0 Hz. Maimum ambient temperature varies by part number - see information by part number on following pages. Bi-Phase Rectifiers A rectifier that is typically used in single phase, reversing, permanent split capacitor (PSC) motor applications. A single phase, reversing, PSC motor typically has two windings of equivalent resistance. The winding which serves as the main winding is connected directly across the power line, the winding which serves as the auiliary winding is connected in series with a run capacitor across the power line. The direction of rotation is reversed by interchanging the function of the two windings. The Bi-Phase Rectifier provides the same voltage to the brake coil regardless of the direction of rotation of the motor. The Bi-Phase Rectifier has five leads and comes in standard response and QuickSet versions. Bi-Phase Rectifiers are application specific. Please contact factory for more information. Up Down Capacitor Bi-phase Rectifier Module PSC Motor Brake 89

27 AC Rectifiers Continued Selection & Pricing 11 Vac Voltage At 0 Vdc coil voltage, this rectifier can be used on brake sizes At 103 Vdc coil voltage, this rectifier can be used on brake sizes At all other listed coil voltages, this rectifier can be used on any brakes size. Brake s AC 0/0 Hz DC Full Wave Brake Coil Voltage/Letter Designation Switching K K or J ac or dc side or connect across motor terminals ALL K K or J ac or dc side or connect across motor terminals ALL K K or J ac or dc side or connect across motor terminals Combination Full and Half Wave Brake s K Brake s AC 11/230 0/7 AC K 11 DC 0/ /29 1/17 Brake Coil Voltage/ Letter Designation 0 Vdc = G 103 Vdc = K 207 Vdc = M 29 Vdc = S 1 Vdc = B 17 Vdc = A Switching ac or dc side or connect across motor terminals Quick Set/Quick Release or 103 Vdc Wattsaver DC 103 Vdc over-ecitation 0 Vdc Sustaining Brake Coil Voltage/ Letter Designation G Switching ac side only or connect across motor terminals Discount Symbol R3 Connection ac leads dc terminal block ac terminal block dc terminal block ac leads dc leads Connection ac terminal block dc terminal block Connection ac terminal block dc terminal block Ma Current (amps).8 $ $ $10.00 Ma Current (amps).8 $ Ma Current (amps) $ Vac Voltage At 0 Vdc coil voltage, this rectifier can be used on brake sizes At 103 Vdc coil voltage, this rectifier can be used on brake sizes At all other listed coil voltages, this rectifier can be used on any brakes size. Brake s AC 0/0 Hz DC Brake Coil Voltage/Letter Designation Full Wave Switching ALL K M ac or dc side or connect across motor terminals ALL K M ac or dc side or connect across motor terminals ALL K M ac or dc side or connect across motor terminals Combination Full and Half Wave Brake s K Brake s ALL Brake s K K AC 11/230 0/7 AC 0/0 Hz DC 0/ /29 1/17 Brake Coil Voltage/ Letter Designation 0 Vdc = G 103 Vdc = K 207 Vdc = M 29 Vdc = S 1 Vdc = B 17 Vdc = A Switching ac or dc side or connect across motor terminals TOR-AC Rectifier with Line Filter, Full Wave DC Brake Coil Voltage/ Letter Designation Switching M ac side only AC 0/0 Hz DC QuickSet Brake Coil Voltage/ Letter Designation ALL K M Ma Brake s Ambient Temp AC 0/0 Hz K o C 230 Switching NONE-connect across motor terminals QuickSet/QuickRelease or 20 Vdc Wattsaver DC 207 Vdc over-ecitation 103 Vdc sustaining Brake Coil Voltage/ Letter Designation K or J Switching ac side only or connect across motor terminals Connection ac leads dc terminal block ac terminal block dc terminal block ac leads dc leads Connection ac terminal block dc terminal block Connection Terminals Leadwires Connection ac terminal block dc terminal block Connection ac terminal block dc terminal block Ma Current (amps).8 $ $ $10.00 Ma Current (amps).8 $ Ma Current (amps). $ Ma Current (amps) Ma Current (amps) $20.00 $

28 AC Rectifiers Selection/Pricing Continued 0 Vac Voltage At 0 Vdc coil voltage, this rectifier can be used on brake sizes At 103 Vdc coil voltage, this rectifier can be used on brake sizes At all other listed coil voltages, this rectifier can be used on any brakes size. Brake s ALL Brake s K K Brake s AC 0/0 Hz DC Half Wave Brake Coil Voltage/Letter Designation Switching L M ac or dc side or connect across motor terminals Combination Full and Half Wave AC 11/230 0/7 AC DC 0/ /29 1/17 DC Brake Coil Voltage/ Letter Designation 0 Vdc = G 103 Vdc = K 207 Vdc = M 29 Vdc = S 1 Vdc = B 17 Vdc = A TOR-AC with Line Filter Brake Coil Voltage/Letter Designation Switching Switching ac or dc side or connect across motor terminals Discount Symbol R3 Connection ac terminal block dc terminal block Connection ac terminal block dc terminal block Connection Ma Current (amps).8 $92.00 Ma Current (amps) Ma Current (amps).8 $ ALL 12090K 0 1 B / Full ac side only Terminals 0.3 $20.00 ALL 12090K 0 1 B / Full ac side only Leadwires 0.3 $20.00 ALL K M / Half ac side only Terminals 0.3 $20.00 ALL K M / Half ac side only Leadwires 0.3 $20.00 ALL K M / Half ac side only Terminals 0. $37.00 ALL 12091K M / Half ac side only Leadwires 0. $37.00 Brake s Brake s AC DC ALL K 0 1 ALL K Ma Ambient Temp AC 0/0 Hz K o C 0 QuickSet Brake Coil Voltage/ Letter Designation B Fullwave M Halfwave Switching NONE-connect across motor terminals NONE-connect across motor terminals QuickSet/QuickRelease or 1 Vdc Wattsaver DC 1 Vdc over-ecitation 207 Vdc sustaining Brake Coil Voltage/ Letter Designation M Switching ac side only or connect across motor terminals Connection ac terminal block dc terminal block ac terminal block dc terminal block Connection ac terminal block dc terminal block Ma Current (amps) Ma Current (amps) $ $20.00 $ Vac Voltage At 0 Vdc coil voltage, this rectifier can be used on brake sizes At 103 Vdc coil voltage, this rectifier can be used on brake sizes At all other listed coil voltages, this rectifier can be used on any brakes size. Brake s ALL ALL Brake s Brake s K UL E K AC 0/0 Hz DC Half Wave Brake Coil Voltage/Letter Designation Switching L ac side only or connect 7 29 S across motor terminals L S ac side only or connect across motor terminals Combination Full and Half Wave AC 0/0 Hz DC QuickSet Brake Coil Voltage/ Letter Designation Switching ALL K 7 28 S NONE-connect across motor terminals TOR-AC with Line Filter - Half Wave Brake s ALL K K K AC 11/230 0/7 AC 0/0 Hz DC 0/ /29 1/17 DC Brake Coil Voltage/ Letter Designation 0 Vdc = G 103 Vdc = K 207 Vdc = M 29 Vdc = S 1 Vdc = B 17 Vdc = A Brake Coil Voltage/ Letter Designation Switching ac or dc side or connect across motor terminals Switching 7 29 S ac side only Connection ac leads dc terminal block ac leads dc leads Connection ac terminal block dc terminal block Connection ac terminal block dc terminal block Connection terminals leadwires Ma Current (amps) Ma Current (amps) Ma Current (amps) Ma Current (amps).8 $ $ $ $ $

29 AC Rectifiers Continued Rectifier Dimensions Tape Mount Length Width Ht AC Connection DC K Leadwire, 7 long Terminal K Terminal Terminal K Leadwire, 2. long Leadwire, 2. long K Terminal Terminal K Leadwire, 7 long Leadwire, 7 long K Leadwire, 7 long Terminal Terminal location or connection may differ from sketch Flange or Tape Mount A B C D E F K K K K K K K K A B C D E F Mount K Tape K Flange K Flange K Flange K Flange K Flange K K K K K Wiring Diagrams/Switching NOTE: For brake response times with and without AC rectifiers see page 101 AC Side Switching Brake coil DC Side Switching Rectifier module Brake coil Connected Across Motor Terminals (No switching) Brake coil Rectifier module Use DC side switching with the following Rectifiers ONLY: K, K, K, K, K Rectifier module 92

30 Electronic Brake Release Indicator (Proving Switch) Armature-Actuated Brake Series Indicates when the brake is released by sensing the change in the brake coil current waveform. For use with the Series 333/30/30 brakes Features Mount in remote location (control cabinet) Operating temperature -0 C through C STEARNS ELECTRONIC PROVING SWITCH INPUT 1 VDC Not susceptible to common problems of PART NUMBER mechanical switches, such as mechanical PATENT NUMBER,22,17 fatigue, tolerances, and vibration. Relay contacts are silver-cadmium oide Utilize either normally-open contacts (UL rated 2-20A, inductive or resistive, at VAC and CSA rated 10A, inductive or resistive at 20 VAC) or normally-closed contacts (UL rated 2-10A, inductive or resistive, at VAC and CSA rated 10A, inductive or resistive, at 20 VAC) Brake Operation When electrical power is applied to the armature-actuated brake coil, the armature is attracted by the electromagnetic force generated by the magnet body, which overcomes spring action. This allows the friction disc to rotate freely. When electrical power is interrupted, the electromagnetic force is removed and the pressure spring mechanically forces the armature plate to clamp the friction disc between itself and the pressure plate. This develops torque to stop or hold the load. Switch Operation When the brake armature is pulled in to the magnet body to release the brake, a change in the brake coil current waveform occurs. By tracking this change in the brake coil current, the electronic switch indicates when the brake is released. Ordering Information Wiring Instructions: See sheet P/N Dimensions 1V Unit..0 2Ø1.88. WIRE ENTRY Discount Symbol $0.00 R3 Eample: V thru 20V Units..0 DC s Voltage To Insert Specify brake model number. The last 2 digits of the switch part number will depend upon the brake size 2Ø1.88 WIRE ENTRY Standard voltages listed. For other voltages, contact factory. Standard voltages listed. For other voltages, contact factory. NOTE: Cannot be used with half-wave rectifier. Use with full-wave or TOR-AC full-wave rectifier only. 93

31 Armature Actuated Brake Modifications Series 320/321/322 Modification Series Brake Maintained Manual Release 320/321/ $0.00 $0.00 $0.00 $0.00 Non-Maintained Manual Release 320/321/ $0.00 $0.00 $0.00 $0.00 Brake Manual Release Indicator Switch Manual release engaged 320/321/322 ALL $80.00 AC Rectifiers, In-Line 310/320/321/322 ALL (Ecept Quick Set) Quick Set $0.00 $80.00 AC Rectifiers, Internal 320/321/ and 2.8 $30.00 Encoder Mount 310/320/321/322 tapped holes in magnet body for tether mount $0.00 Through-Shaft 320 See catalog pg. N/C Mounting Plates Double D Disc 321/322 ALL (through-shaft combined with manual release only available on size 2.8) 320/321/322 Bolt Circle / , , , 2. register $0.00 $30.00 $0.00 $0.00 $ /321/ , 1.8, and 2.0 Contact factory for Double D disc on brakes rated greater than 7 lb-in No charge Carrier Ring Disc 320/321/ $

32 Armature Actuated Brake Modifications Series 333/30/30 Maintained Manual Release Manual Release Access Plugs Modification Series Brake Adder 333 ALL size 72 $8.00 size 90 $ size 112 $ size 132 $12.00 size 1 $10.00 size 170 $10.00 size 19 $ size 230 $38.00 size 278 $ /30 ALL Standard feature Non-Maintained Manual Release Electronic Brake Release Indicator Switch 333 ALL 30 ALL size 72 $8.00 size 90 $ size 112 $ size 132 $12.00 size 1 $10.00 size 170 $10.00 size 19 $ size 230 $38.00 size 278 $0.00 size 170 $00.00 size $ /30/30 ALL $0.00 Electronic Wear Indicator Switch 333/30/30 ALL $0.00 AC Rectifiers, In-Line 333 size Vac size Vac $92.00 standard in-line $10.00 in-line quickset AC Rectifiers, Separate 333/30/30 ALL see rectifier pages Conduit Bo 333/30/30 ALL $ /30 with IP7 conduit bo ALL $

33 Series 333/30/30 Modifications Modification Series Brake Band Seal (Boot) End Cap Plug Space Heater 333 ALL 333 ALL size 72 $22.00 size 90 $2.00 size 112 $28.00 size 132 $0.00 size 1 $8.00 size 170 $ size 19 $12.00 size 230 $10.00 size 278 $ size 72 $20.00 size 90 $30.00 size 112 $0.00 size 132 $0.00 size 1 $90.00 size 170 $90.00 size 19 $ size 230 $ size 278 $ /30/30 ALL s $ s $1.00 Tach Machining Through-Shaft 333 tapped holes in magnet body for tether mount 30/30 Machining on brake housing ALL $0.00 ALL 170 $1,28.00 s $2, through-shaft seal in magnet body ALL s $32.00 s $ /30 through-shaft hole in housing with shaft seal ALL $