Huco Dynatork Flexible Couplings

A T R A I N D U S T R I A M O T I O N Huco Dynatork Flexible s

Huco offers a wide variety of couplings for precision industrial and commercial applications worldwide. Selecting the right shaft coupling can be the difference between a drive system that provides the required dynamic response and one that is catastrophic. The application constraints lead engineers towards products that have different levels of torsional stiffness, vibration dampening, backlash, and low bearing loads. Huco can respond quickly with a wide variety of couplings such as general purpose, beam style, and precision couplings suitable for highly reliable applications. Precision s Flex B Bellows, Flex K arge Bellows and Flex M Disc type couplings are ideal for use in highend servo drives, pulse generators, scanners, XY positioning slides, high speed dynamometers, measuring instruments, robots, and machine tools. Beam s Step Beam, Single Beam, Three Beam, and Six Beam couplings are available for use in stepper and servo drives, encoders, tachometers, small pumps, motors and drives and lightduty power transmission applications.

General Purpose s Oldham couplings are designed for use in stepper drives and most applications including positioning slides, pumps, actuators, etc. Uniat models are ideal for encoder, resolver, tachometers, potentiometer drives, as well as small positioning slides, dosing pumps, and general light drives. Flex P units can be utilized in light power drives, pumps and small generators. Friction Clutches VariTork friction clutches allow slippage when the torque being transmitted reaches a predetermined threshold. Used in all types of small drives to help protect personnel and equipment.

Contents Huco Huco Engineering Industries td. Merchant Drive, Hertford, SG3 7B UK Tel: +44 (0)99 50900 Fax: +44 (0)99 509890 440 North Fifth Avenue Chambersburg, PA 70 USA Tel: (888) 89 6637 Fax: (77) 64 640 Web: www.huco.com Email: sales@huco.com Contents PRODUCT OVERVIEW................ 3 SEECTING FEXIBE COUPINGS......... 4 5 INSTAING COUPINGS.............. 6 8 Product Overview Flex B Flex K Stainless Steel Bellows type Precision couplings with excellent kinematic properties. The 3 types offer differing combinations of stiffness, radial compensation and axial motion. Flex Ni Nickel Bellows type Precision couplings with excellent kinematic properties. The 3 types offer differing combinations of stiffness, radial compensation and axial motion. Membrane type MultiBeam type SingleBeam type Flex M Singlestage Short twostage ong twostage General description Precision couplings with excellent kinematic properties. Dynamically balanced construction. Singlestage versions make up into whirl free Cardans. The stage versions offer short envelopes and low bearing loads respectively. MultiBeam 6Beam Material Options: Aluminium Stainless Steel Acetal General purpose single piece couplings Single stage (3beam) Two stage (6beam) Material options for moisture and corrosion resistance. SingleBeam Material Options: Aluminium Stainless Steel More flexible than MultiBeam but less torsional rigidity. HIGH PERFORMANCE COUPINGS........9 Membrane, Stainless Steel Bellows, Ni Bellows Where to use GENERA PURPOSE MOTION CONTRO COUPINGS............... 8 HucoOldham & Uniat Highend servo drives, pulse generators, scanners, positioning slides, metering valves, etc. Highend servo drives, pulse generators, scanners, positioning slides, metering valves, etc. Highend servo drives, pulse generators, scanners, positioning slides, high speed dynamometers, unsupported drive shafts, etc. Stepper and servo drives, encoders, general purpose light duty power transmission applications. Stepper drives, encoders, general purpose light duty power transmission applications. BEAM COUPINGS................. 9 4 Single Beam, MultiBeam, Step Beam IGHT POWER DRIVE COUPINGS........ 43 46 Jaw (Spider), Double oop Flex B up to 5000 rpm Flex K up to 5000 rpm Up to 5000 rpm Speeds Up to 5000 rpm Up to 5000 Peak torque largest size lbs.in Up to 5000 rpm PASTIC UNIVERSA JOINTS & TEESHAFTS..............47 5 HucoPol & Huco Teleshafts 445 (500) /8 / (3 to 65) 0.6 (.5) /8 3/4 (3 to 0) 885 (00) 39 (40) Standard bores /8 /4 (3 to 38) /8 /4 ( to 38) 66 (30) /8 3/4 (3 to 6) ADJUSTABE FRICTION CUTCHES....... 53 56 Huco VariTork, Slip Clutches BORE ADAPTORS................. 57 58 Hucook FORMUAE & CONVERSION FACTORS.....59 6 For Motion Transfer 40 to +50 F (40 to +0 C) No Clamp, Set 40 to +50 F (40 to +0 C) No Clamp or Set Temperature range ºF (ºC) 40 to +50 F (40 to +0 C) Electrically isolating No Connection Clamp or Set 40 to +90 F (40 to +40 ) Aluminium } Stainless Steel } Acetal Clamp or set screw Page 9 4 Page 6 7 Page 8 Page 9 38 Page 40 4 No Yes 40 to +90 F (40 to +40 ) Aluminium } Stainless Steel } Acetal Clamp or Set No Yes Huco 888896637 +44 (0) 99 50900... P793HD /7

Product Overview StepBeam type Sliding Disc type Universal/ateral type Double oop type Jaw Universal Joints & Teleshafts Friction Clutches StepBeam Oldham Blind bored Uniat FlexP FlexG HucoPol Single joints VariTork, Polyclutch Basic clutch Thru bored Double joints Basic clutch + Oldham coupling Thru bored Teleshafts Material Options: Nylon Material Options: Aluminium Stainless Steel Brass General description Unique coupling design gives excellent combination of radial flexibility with torsional stiffness. General purpose, robust, easy to use 3part couplings with replaceable wear elements. Generous radial compensation and pullapart / reengage facility for blind assemblies. Unique, general purpose light duty couplings with generous angular and radial misalignment compensation. Resist axial motion, can anchor unrestricted shafts and perform light push/pull duties. Exceptional flexibility in all three directions, radial, angular and axial. High torque capacity and high speed are available from this naturally balanced coupling. ight duty plastic universal joints and extensible drive shafts (teleshafts). ow mass, corrosion resistant, ideal where conventional steel joints would be underutilized. Small, useradjustable torque limiters for concentric or inline mounting. Operate by friction using interleaved clutch plates. Where to use Encoders, tachogenerators, small pumps, motors and drives. Stepper drives for most applications including positioning slides, pumps, actuators, etc. Encoder, resolver, tacho, potentiometer drives. Small positioning slides, dosing pumps, & light drives generally. ight power drives, pumps and small generators. ight power drives where misalignment is small. Intermittent applications in business machines, instrumentation, lab equipment, analytical apparatus, etc., where steel joints would be underutilized. Friction clutches interrupt rotation when the load being transmitted reaches a predetermined threshold. Used in all kinds of small drives to help protect personnel and equipment. Speeds Up to 0000 rpm. Up to 3000 rpm. Up to 3000 rpm. Up to 3000 rpm. Up to 40,000 rpm. Up to 000 rpm. Up to 000 rpm slipping speed. Peak torque largest size lbs.in (5) 389 (44) 06 () 59 (8) 77 (33) 95 (0.7) 53 (60) Standard bores /8 / (3 to.7) /8 ( to 30) /8 3/4 (3 to ) /8 5/8 (3 to 6) /8 5/8 (3 to 6) /8 3/4 (3 to 0) /4 /4 (6 to 3) Temperature range 0 to +300 F (0 to +50 C) 0 to +40 F (0 to +60 ) 0 to +40 F (0 to +60 ) 40 to +0 C (40 to +00 ) 40 to +80 F (40 to +80 ) 0 to +40 F (0 to +60 ) 0 to +80 F (when operating) (0 to +80 ) (when operating) Electrically isolating Yes Yes Yes Yes Yes Yes No Clamp or Set Page 39 Connection Clamp or Set Clamp or Set Set Clamp or Set Set, Bonding, or CrossPinning Page 6 Page 7 8 Page 46 Page 44 45 Page 48 5 Clamp or Set Page 54 56 P793HD /7... Huco 8888896637 +44 (0) 99 50900 3

Selecting Flexible s Building an Ordering Part Number is fast and easy using the Specifications and Bore charts on each product page. Simply select the coupling type, coupling size and two bore sizes you require (always place smaller bore first). Always include (.) in Part Number. Ordering Number System Example: 536.0.48 536 0 4 8 Type See Specifications Chart See Specifications Chart Bore Code See Bore Chart (smaller bore) Bore Code See Bore Chart (larger bore) Note: Specifications and Bore charts are on each product page. The following key factors should always be considered when specifying flexible shaft couplings: Torsional Stiffness Backlash ife Shaft Attachment Type Misalignment Requirements Service Factors capacity values shown in the coupling specification charts assume uniform load conditions at a constant speed with no misalignment or axial displacement. See page 48 to provide adequate service factors. The torque capacity of flexible couplings will reduce when acceleration is present (eg: stop/start or reverse conditions). The more severe the acceleration, the greater reduction in torque capacity. The more severe the misalignment, the greater reduction in torque capacity. Sliding couplings (Oldham and Uniat) are subject to a wear rate dependant on the number of cycles completed and environmental factors. Selection Criteria Follow these simple guidelines to select the optimal coupling choice for your particular application. Does the coupling provide adequate misalignment protection? Can it transmit the required torque? Can it sustain the required rotational speed? Will it fit in the available space envelope? Can it operate at the designated ambient temperature? Will it provide the torsional stiffness required for positional accuracy? Does it provide electrical isolation between the shafts? Will it provide the required life expectancy? Is axial motion or axial stiffness required? Steady State oad Stop/Start Reversing Shock Shock & Reversing Huco Flex B.5.0.0 3.0 4.0 Huco Flex K.5.0.0 3.0 4.0 Huco Flex M.5.0.0 3.0 4.0 Huco Flex Ni.0.0.0 3.0 4.0 Huco Flex P.0.5.5 3.0 4.0 Huco Flex G.0.0 4.0 4.0 4.0 Huco MultiBeam.0.5.0 (Note ) (Note ) Huco SBeam.0.5.0 (Note ) (Note ) Huco Torqink.0.5.0 (Note ) (Note ) Duty (Hours/Day) < 35 6 > Huco Oldham.0.0 4.0 6.0 8.0 Huco FlexB.0.5.0 3.0 4.0 Uniat.0.5.0 3.0 4.0 * Note Not recommended in these conditions. 4 Huco 888896637 +44 (0) 99 50900... P793HD /7

Selecting Flexible s Round & Keywayed Bore Details & Codes Metric Inch Inch mm fraction decimal Round Metric keys Inch keys Keywayed bore key size key size bore code w x h w x h code 0.0394 08.5 0.059 09.588 /6 0.065 0 0.0787.86 0.0900.38 3/3 0.0938 3 3 0.8 4 3.048 0.00 5 3.75 /8 0.50 6 *3.969 5/3 0.563 4 0.575 8 4.763 3/6 0.875 9 5 0.969 0 5.556 7/3 0.88 6 0.36 6.096 0.400 3 6.350 /4 0.500 4 7 0.756 5 x P5 7.44 9/3 0.83 6 7.938 5/6 0.35 7 /8 x /8 R7 8 0.350 8 x P8 8.73 /3 0.3438 9 /8 x /8 R9 9 0.3543 30 3 x 3 P30 9.55 3/8 0.3750 3 /8 x /8 R3 0 0.3937 3 3 x 3 P3 0.433 33 4 x 4 P33.3 7/6 0.4375 34 /8 x /8 R34 0.474 35 4 x 4 P35.700 / 0.5000 36 /8 x /8 R36 3 0.58 37 5 x 5 P37 4 0.55 38 5 x 5 P38 4.88 9/6 0.565 39 3/6 x 3/6 R39 5 0.5906 40 5 x 5 P40 5.875 5/8 0.650 4 3/6 x 3/6 R4 6 0.699 4 5 x 5 P4 7 0.6693 43 5 x 5 P43 7.463 /6 0.6875 44 3/6 x 3/6 R44 8 0.7087 45 6 x 6 P45 9 0.7480 46 6 x 6 P46 9.050 3/4 0.7500 47 3/6 x 3/6 R47 0 0.7874 48 6 x 6 P48 0.866 49 6 x 6 P49.5 7/8 0.8750 50 /4 x /4 R50 4 0.9449 5 8 x 7 P5 5 0.9843 5 8 x 7 P5 5.400.0000 53 /4 x /4 R53 8.04 54 8 x 7 P54 8.575 /8.50 55 5/6 x /4 R55 30.8 56 8 x 7 P56 3.750 /4.500 57 5/6 x /4 R57 * Not manufactured. Nearest alternative 4mm. Round & Keywayed Bore Details & Codes Cont. Metric Inch Inch mm fraction decimal Round Metric keys Inch keys Keywayed bore key size key size bore code w x h w x h code 3.598 58 0 x 8 P58 34.95 3/8.3750 59 3/8 x /4 R59 35.3780 60 0 x 8 P60 38.496 6 0 x 8 P6 38.0 /.5000 6 Specify on Order 40.5748 63 4.8 5/8.650 64 4.6535 65 Specify on Order 44.45 3/4.7500 66 45.777 67 47.63 7/8.8750 68 Specify on Order 48.8898 69 50.9685 70 50.80.0000 7 Specify on Order 53.98 /8.50 7 55.654 73 57.5 /4.500 74 Specify on Order 60.36 75 60.33 3/8.3750 76 63.50 /.5000 77 Specify on Order 65.559 78 73.03 7/8.8750 79 Specify on Order 75.958 80 Specifying a Keywayed Bore To specify a keywayed bore, prefix the digit bore code number with a P for metric keyways or an R for an inch keyway. Examples: Metric: 538.34.P8P8 In this example both bores have a keyway. Inch: 538.34.4R36 In this example only the second bore will have a keyway. Standard keyways are machined to two specifications: Bore Codes prefixed with a P denote a metric keyway conforming to ISO 773/774 (BS 435 Pt. ). Bore Codes prefixed with a R denote an inch keyway conforming to BS 46 Pt.. P793HD /7... Huco 8888896637 +44 (0) 99 50900 5

Installing s Flexible Types General instructions. Ensure that shafts are free of burrs, damage, or foreign matter, and can penetrate the bores.. Install the coupling by holding the shaft and the related hub, rotating it back and forth as you progress it along the shaft. 3. Do not apply any forces that cause extension, compression or lateral displacement of the coupling beyond its permissible offsets. Normal installation When to use single & twostage couplings Singlestage a) Position and secure the larger of the shafts (if different) and progress the coupling onto it. Example. With partially supported ( bearing) shafts. r Example. With unsupported intermediate shafts. Singlestage couplings are radially supportive and function as supplementary bearings. They are used when the connected shaft lacks a full complement of bearings. b) Progress the second shaft into the bore, taking care not to lever either shaft against the inner wall of the spacer. Twostage Twostage couplings are radially compliant and are used when both shafts are fully supported by bearings. c) Progress the coupling along the shafts to a position midway between the shaft terminations. Rotate the coupling to ensure it is not binding and is in its natural state, ie., neither extended nor compressed. d) Align the second shaft with the first using a straight edge and feeler gauges or a dial indicator. e) Secure the second shaft and recheck alignment. Final alignment must be within the permissible offsets. f) Secure one hub, tightening each screw alternately. Repeat for the second hub. CAUTION These are precision high couplings that have a limited range of permissible flexure. They can be damaged through careless handling. Avoid gratuitous flexure in any direction. No axial forces are permitted across the membranes when fitting HucoFlex M couplings. Keyways with interference fits are not recommended. Bellows couplings are more tolerant of axial motion, but flexure beyond the permissible limits should be avoided. Note: Bellows couplings do not provide the same level of radial support as Flex M when used with partially or wholly unsupported shafts. When essential for reasons of greater axial motion, use the 3convolution type for these purposes. 6 Huco 888896637 +44 (0) 99 50900... P793HD /7

Installing s Sliding Disc type (Oldham) Blind hub Thro hub /H Shaft R/H Shaft /H Shaft R/H Shaft a) Slide hubs on to both shafts until fully seated and tighten screws. b) Position and secure R/H shaft. /H Shaft R/H Shaft a) Slide hubs on to both shafts. b) Align shafts to within the permissible offsets and position to leave minimum gap between terminations. Secure both shafts, check alignment and correct if necessary. c) Seat disc fully on R/H hub. /H Shaft R/H Shaft /H Shaft R/H Shaft c) Position R/H hub with inboard face flush with shaft termination and tighten screws. gap gauge d) Slide disc radially on to the tenons of the R/H hub. Ensure the disc is fully seated. d) Place a gap gauge flat against the bottom of the exposed slot in the disc and push the /H hub into full engagement by manipulating the /H shaft. e) Align shafts within the permissible offsets and secure /H shaft. f) Check alignment and correct if necessary. g) Remove gap gauge. /H Shaft R/H Shaft To fit a new disc, withdraw /H shaft complete with hub and remove old disc. Repeat steps c) to g). Gap gauges for all hub types size 06, 09 & 3 Gap gauge 0.00 (0.05) 9 & 5 0.004 (0.0) 33 & 4 0.006 (0.5) 50 & 57 0.008 (0.0) Clearances are set to allow for thermal shaft growth and / or endfloat. Gaps may be increased, but total shaft movement should not exceed the values shown under Axial Compensation in the Performance Table. Radial support Shafts must be fully supported by bearings and have minimal overhang. Oldham couplings cannot be used in pairs. Clamp hubs gap gauge e) Place a gap gauge flat against the bottom of the exposed slot in the disc and push the /H hub into full engagement. f) Tighten fastening screws and remove gap gauge. To fit a new disc, slacken the fastening screws on one hub and retract it along the shaft. Slide the old disc out radially and replace with the new. Repeat steps d) to f). To retain shaft phasing, withdraw /H shaft and repeat steps c) to g) as for Blind hub couplings. Overpenetration of shafts can impair function of coupling with solid disc. Min shaft gap must be observed. Specify thro bored disc for nearbutted shafts. size 9 5 33 4 50 57 min 0.8 0.36 0.47 0.60 0.7 0.83 (7.) (9.) (.0) (5.3) (8.4) (.) To improve clamp action, apply a little grease under the head of the clamp screw. right wrong Note: It is important that installed couplings are not endloaded. To help avoid this, thro bored hubs are recommended for shafts which have fixed axial locations such as facemounted motors. P793HD /7... Huco 8888896637 +44 (0) 99 50900 7

Installing s Beam Type Relief Under The Beams Most MultiBeam couplings can be supplied with or without relief under the beams as shown in the diagrams below. When the drive or driven shafts extend under the beams relief is essential to ensure that the coupling remains flexible. Where nonrelieved versions are used, shafts must not be allowed to penetrate under the beamed section of the coupling. Unless otherwise specified, relieved versions will be supplied. Pilot Bores s can be supplied pilot bored for opening out by the customer. Pilot bores are plain drilled holes, which are not produced with the same accuracy as finished machined bores. The largest bore provided in a pilot bored product is that needed to make the coupling flexible and this will always be larger than the minimum possible bore size B shown in the bore tables. For sizes 3 to 5, the pilot bore is also larger than the B minimum shown in the bore tables. Further details are available on request. NonRelieved X Relieved 8 Huco 888896637 +44 (0) 99 50900... P793HD /7

High Performance s Stainless Steel Bellows Nickel Bellows Flexible Membrane (Disc) Torsionally rigid design No moving parts Allmetal construction ow inertia The operating principles of Flex B, Flex K, Flex Ni and Flex M offer the highest performance available with flexible couplings. With excellent kinematic properties and torsional stiffness of a very high order, they are suitable for servo drives and satisfy the criteria for highly dynamic position and velocity control systems. Bellows couplings have the greater torsional stiffness while Flex M have the more tolerant flexural system and feature dynamically balanced construction. P793HD /7... Huco 8888896637 +44 (0) 99 50900 9

FlexB Stainless Steel Bellows s Set screw hubs ØB ØB ØB ØB ØB ØB Ref. 530 Short type for precisely aligned shafts Ref. 53 ong type for greater angular offsets or axial motion Ref. 534 Stretched type for greater radial misalignment and lower bearing loads Typical Clamp hubs ØB ØB ØB ØB ØB ØB Ref. 536 Short type for precisely aligned shafts Ref. 538 ong type for greater angular offsets or axial motion Ref. 540 Stretched type for greater radial misalignment and lower bearing loads Typical Comparative properties Parameter Peak Torsional Stiffness Angular Compensation Axial Compensation Radial Compensation Type Short ong Stretched The properties of the 3 types compared on a scale of to 3. 3 = best. 3 3 3 3 3 Materials & Finishes Hubs : Al. Alloy 04T6 and Clear anodised finish Bellows: Spring quality stainless steel Joint assembly: Copper C06, heat treated Zinc plate, clear passivate Fasteners: Alloy steel, black oiled Temperature Range 40ºF to + 48ºF (40 C to +0 C) 0 Huco 888896637 +44 (0) 99 50900... P793HD /7

DIMENSIONS & ORDER CODES 0 6 34 4 STANDARD BORES 0 6 34 Set Hubs Clamp Hubs COUPING REF 530.0 53.0 534.0 530.6 53.6 534.6 530.34 53.34 534.34 530.4 53.4 534.4 PERFORMANCE 0 6 34 4 Ref. 536.0 538.0 540.0 536.6 538.6 540.6 536.34 538.34 540.34 536.4 538.4 540.4 530 & 536 53 & 538 534 & 540 530 & 536 53 & 538 534 & 540 530 & 536 53 & 538 534 & 540 530 & 536 53 & 538 534 & 540.79 (0.0).0 (6.0).34 (34.0).6 (4.0).43 (.0) IMPORTANT FlexB oad capacity depends on application conditions: see page 4 for details ØB, ØB +0.00/ 0 (+0.03mm/0mm) (3) /8 (4) 3/6 (5) (6) /4 (8) (9) 3/8 (0) () () / (4) (5) 5/8 (6) (8) (9) 3/4 (0) ØB, ØB Fasteners 3 3 max Moment Mass of inertia kg Wrench kgm x 03 ±.0 lb x 08. (3.0) 90 8.77 (45.) 0 0.08 M4 (.7) () 00 9.55 (4.0).55 (4.0).7 (8.0) 0.3 (8) 0.47 () 0.63 (6) 0.79 (0) M.5 M5 M3 M5 M3 M6 M4 4 Peak torque lb 5 Max compensation 6 7.7 (.0) 8.8 (.0). (.5) 8.3 (3.) 4. (.6) 35.4 (4.0) 66.4 (7.5) 33.6 (3.8) 83. (9.4) 88.5 (0.0) 44.3 (5.0) (.5).7 (43.6). (3.0).78 (45.).7 (43.6).48 (37.5).4 (54.3).09 (53.).48 (37.5).4 (54.3).09 (53.).57 (40.0).4 (57.0).3 (56.6).57 (40.0).4 (57.0).3 (56.6).96 (49.7).8 (7.4).78 (70.7).96 (49.7).8 (7.4).78 (70.7) Angular deg 6.3 6.3.5 8.5.5 8.8 Radial.00 (0.06).00 (0.50).007 (0.0).00 (0.06).00 (0.50). 039 (.00).007 (0.0).003 (0.0).039 (.00).0 (0.30).006 (0.5).047 (.0).06 (0.40) Stainless Steel Bellows s 4 Bore ref. 4 6 8 9 0 4 8 30 3 3 33 35 36 38 40 4 4 45 46 47 48 Corresponding 5 53 55 57 59 60 6 bore adaptor Diameters for which a bore adaptor is shown can be adapted to smaller shaft sizes. See page 58 for details of metal bore adaptors..6 (.3) 40.9 (4.6).5 (.43) 40.89 (4.6).5 (.43) 67.3 (7.6) 50.0 (5.66) Axial Torsional (± mm) Nm / rad 0.4 (0.35).038 (.00).007 (0.0).04 (0.36).007 (0.0).04 (0.60).075 (.90).0 (0.30).03 (0.80).098 (.50).00 (0.50) 35 70 5 755 380 65 740 95 455 880 30 45 0.08 () 0.0 (.5) 0.0 (.5) 0.0 (.5) 0.0 (.5) 0. (3) 0. (3) Flexural stiffness Angular N / deg.03 0.33 0.33.7 0.39.5.34 0.6.98.58 0.5.30 5 6.7 8. 38 8. 4.6 7.7 3. 44 9.3 9. 90 90 00 90 350 400 370 330 380 350 975 8 988 95 078 938 490 740 477 390 660 377 Radial N / mm 7.7 7.8 7. 5.7 3.3 6.4 6.6 3.8 7.9 3. 3.8 7. 8 6 8 7 35 39 34 34 38 33 58 65 59 56 63 57 0 0 0 99 07 99 Axial N / mm 3 4 5 6 ength of supported thro bore. Shafts can nearbutt. Maximum recommended tightening torque. Values apply with max bores. Peak torque. Select a size where Peak exceeds the application torque x service factor. (see page 4) Max. compensation values are mutually exclusive. Torsional stiffness values apply at 50% peak torque with no misalignment, measured shafttoshaft with largest standard bores. Note that in some vendors catalogs the given torsional stiffness applied to the unmounted bellows element only, an unrepresentative calculated value. s indicated in parenthesis are metric. P793HD /7... Huco 8888896637 +44 (0) 99 50900

FlexK Stainless Steel Bellows s Set screw hubs Ref. 550 & 55 Typical Clamp hubs Ref. 554 & 555 Typical Materials & Finishes Hubs : Al. Alloy [Clamp hubs size 66 and larger steel] Bellows: Spring quality stainless steel Fasteners: Alloy steel, black oiled Temperature Range 30ºF to + 48ºF (30 C to +0 C) Huco 888896637 +44 (0) 99 50900... P793HD /7

FlexK Stainless Steel Bellows s DIMENSIONS & ORDER CODES 0 6 0 5 33 4 Set Hubs PERFORMANCE Clamp Hubs COUPING REF Ref. 550 & 55 Ref. 554 & 555 ØB, ØB Max Fasteners 3 3 Moment of Mass inertia kgx03 kgm x08 550.0 0.9 (3.0) 0.4 (6.0) M3 4.43 (0.5) 4 3 0.39 (0.0) 0.6 (4.0) 0.06 (.5) 554.0 0.98 (5.0) 0.8 (7.0) M.6 0.89 (0.) 5.6 550.6 0.83 (.0) 7 4. 0.59 (5.0) 0.5 (6.0) 0.3 (8.0) M3 4.43 (0.5) 55.6 0.98 (5.0) 9 4.6 0.06 (.5) 554.6 0.9 (3.0) 30 7.6 0.6 (5.5) 0.3 (8.0) 0.8 (7.0) M 3.8 (.43) 555.6.0 (6.0) 33 7.9 550.0.0 (6.0) 5 5.3 0.75 (9.0) 0.3 (8.0) 0.47 (.0) M4 3.3 (.50) 55.0.8 (30.0) 65 7.3 0.08 (.0) 554.0.0 (6.0) 75 9.5 0.79 (0.0) 0.35 (9.0) 0.39 (0.0) M.5 7.5 (.85) 555.0. (3.0) 88.5 550.5 0.87 (.0) 80 6 0.94 (4.0) 0.5 (6.0) 0.55 (4.0) M4 3.3 (.50) 0.08 (.0) 55.5.0 (8.0) 4 8 554.5.6 (3.0) 5 7 0.98 (5.0) 0.43 (.0) 0.5 (.7) M3 7.7 () 0.0 (.5) 555.5.65 (4.0) 75 550.33.57 (40.0) 63 9.6 (3.0) 0.47 (.0) 0.7 (8.0) M6 6.6 (3.00) 55.33.89 (48.0) 73 35 0. (3.0) 554.33.6 (4.0) 0.55 (4.0) 950 48.8 (3.5) 0.63 (6.0) M4 30.9 (3.50) 555.33.89 (48.0) 0.6 (5.5) 036 5 550.4.77 (45.0) 85 3.57 (40.0) 0.47 (.0) 0.94 (4.0) M6 6.6 (3.00) 55.4.7 (55.0) 885 5 0. (3.0) 554.4.89 (48.0) 50 59.59 (40.5) 0.55 (4.0) 0.87 (.0) M4 39.8 (4.50) 555.4.4 (57.0) 750 79 Ref. Peak torque lb Angular deg lb Wrench Max compensation 5 Flexural Stiffness 6 Radial Axial (±mm) Torsional Nm/rad 0 550 & 554 0.89 (0.)..004 (.) 0.008 (.) 65 0 4 6 0 5 33 4 550 & 554.0.003 (.0) 0.008 (.) 50 74 7 8.85 (.0) 55 & 555.5.006 (.5) 0.0 (0.3) 380 3 0 550 & 554.5.003 (0.0) 0.0 (0.3) 750 59 5 3.3 (.5) 55 & 555.0.006 (0.5) 0.0 (0.4) 700 0 9 550 & 554 4 Radial N/mm.5.006 (0.5) 0.0 (0.3) 500 67 55 7.7 (.0).5.008 (0.0) 0.0 (0.4) 300 555.0.00 (0.5) 0.0 (0.5) 050 9 550, 5554 & 555.5.003 (0.0) 0.0 (0.3) 6500 68 3 39.83 (4.50) 55.0.008 (0.0) 0.0 (0.5) 400 4 0 550 & 554.5.006 (0.5) 0.6 (0.4) 800 0 7 88.5 (0.0) 55 & 555.0.0 (0.30) 0.0 (0.6) 6800 9 7 Axial N/mm P793HD /7... Huco 8888896637 +44 (0) 99 50900 3

FlexK Stainless Steel Bellows s CAMP HUBS DIMENSIONS & ORDER CODES Ref. 554 & 555 Typical 45 56 66 8 90 0 Set Hubs Clamp Hubs COUPING REF ØB, ØB Max Fasteners lb Wrench 3 3 Moment of Mass inertia kgx03 kgm x08 554.45.48 (63.0) 3560 54.77 (45.0) 0.77 (9.5).00 (5.4) M5 8.0 4.0 555.45.78 (7.0) 4560 04 554.56.56 (65.0) 3930 5.0 (56.0) 0.96 (4.5).8 (30.0) M6 5.0 5.0 555.56.87 (73.0) 4930 35 554.66 3. (79.0) 3360 390.60 (66.0).4 (9.0).6 (3.0) M8 40.0 6.0 555.66 3.50 (89.0) 34360 490 554.8 3.58 (9.0) 83930 50 555.8 3.3 (8.0) 4.0 (0.0).3 (33.5).65 (4.0) M0 84.0 8.0 93930 50 554.90 3.98 (0.0) 305980 875 3.54 (90.0).50 (38.0).77 (45.0) M 5.0 0.0 555.90 4.45 (3.0) 35980 975 554.0 4.33 (05.0) 654095 330 4.33 (0.0).50 (38.0).36 (60.0) M 5.0 0.0 555.0 4.57 (6.0) 674095 430 554. 4.4 (.0) 4450 3540 4.80 (.0).65 (4.0).56 (65.0) M 5.0 0.0 555. 4.84 (3.0) 54450 3640 PERFORMANCE 45 56 66 8 90 0 Ref. Peak torque lb 4 Angular deg Max compensation 5 Flexural Stiffness 6 Radial in Axial (±mm) Torsional Nm/mm Radial N/mm 554.5.008 (0.0).00 (0.5) 0000 790 00 59 (8) 555.0.00 (0.5).00 (0.5) 5000 970 85 554.5.006 (0.5).04 (0.6) 38000 70 50 66 (30) 555.0.00 (0.5) 0.04 (.0) 8000 5 8 554.5.006 (0.5).04 (0.6) 75000 50 90 53 (60) 555.0.00 (0.5).040 (.0) 50000 340 50 554.5.008 (0.0).00 (0.5) 55000 00 45 38 (50) 555.0.00 (0.5).00 (0.5) 05000 400 85 554.5.008 (0.0).00 (0.5) 75000 00 45 770 (00) 555.0.00 (0.5).03 (0.8) 0000 595 8 554.5.008 (0.0).00 (0.5) 50000 500 80 655 (300) 555.0.00 (0.5).03 (0.8) 85000 460 45 554.5.008 (0.0).00 (0.5) 690000 6300 00 445 (500) 555.0.00 (0.5).040 (.0) 30000 400 85 Axial N/mm 3 ength of supported bore Maximum recommended tightening torque Values apply with Max. Bores 4 5 6 Peak. Select a size where Peak exceeds the application torque x service factor (see page 4) Max. compensation values are mutually exclusive Torsional stiffness values apply at peak torque with no misalignment 4 Huco 888896637 +44 (0) 99 50900... P793HD /7

Notes P793HD /7... Huco 8888896637 +44 (0) 99 50900 5

FlexNi Nickel Bellows s Set Hubs Ref. 3 Ref. 3 Clamp Hubs Ref. 33 Ref. 33 The convolutions of FlexNi s are formed by the electrolytic deposition of nickel. This produces stressfree convolutions with closely controlled wall thickness. Nickel bellows couplings are characterized by their exceptional quality of rotational positional integrity. This is achieved through high torsional stiffness in a coupling that is still able to accommodate large amounts of lateral and angular misalignment due to low spring rates in these directions. These couplings are used primarily in instrumentation and similar sensitive applications. Materials & Finishes Hubs : Aluminium Alloy Bellows: Electrodeposited nickel Fasteners: Alloy steel Temperature Range 50ºF to + 48ºF (50 C to +0 C) 6 Huco 888896637 +44 (0) 99 50900... P793HD /7

DIMENSIONS & ORDER CODES Number of convolutions Set Hub Clamp Hub O.D O/A ength Max Shaft Depth Max Bores Moment of Inertia kgm x 08 FlexNi Nickel Bellows s Order Code Dimensions Fasteners Mass kg x 03 7 8 3.07 0.5 (6.35) 0.55 (4) 0.6 (4) 3.75.3.5 M 3.63 (4).035 (0.9) 4 3. 0.47 () 0.9 (3) 0.4 (6) 6.35 8.5 0 M.5 6.99 (79).05 (.3) 7 4 5 0 36 7 50 lb (Ncm) 3.7 0.67 (7). (3) 0.8 (7) 0 36. 8.5 M3.68 (3).060 (.5) 33.7 0.64 (6.3).30 (33) 0.3 (8) 6.35 46.6.0 M 3.0 (35) 0.60 (.5) 3.5 0.98 (5).30 (33) 0.8 (7).7 6.0 9.5 M3.68 (3) 0.60 (.5) 33.5 0.98 (5).46 (37) 0.35 (9).7 45.0 8.5 M.5 5.84 (66) 0.08 (.0) 3.36.43 (36.3).67 (4.3) 0.37 (9.5) 9.05 60.0 39.0 M6 45.4 (50) 0. (3.0) 33.36.43 (36.3).85 (46.9) 0.46 (.8) 9.05 960.0 85.0 M4 3.9 (6) 0. (3.0) 3.50.00 (5).33 (59.3) 0.4 (0.5) 0 95.0 5.0 M6 76. (860) 0. (3.0) 33.50.00 (5).44 (6.9) 0.46 (.8) 0 3560.0 05.0 M4 3.9 (6) 0. (3.0) A/F PERFORMANCE Peak lb (Ncm) Wind up Arcs/Ncm Angular Deg Max misalignment compensation Radial Axial Torsional (Nm/rad) Nominal Spring Rates Angular (N/deg) Radial (N/mm) Axial (N/mm) 7 0.434 (4.9) 85 0.007 (0.9).06 (0.65) 7 <0.5 6.9 3.5.5 (3) 75 5.0 (0.54).068 (.7) 7 <0.5 4.. 7 4.4 (50) 0 0.07 (0.43).070 (.78) 03 0.5.3 4.0 5 9.03 (38) 4.0 8.08 (0.46).08 (.07) 55 0.4 38.. 36 8.5 (98). 6.08 (0.46) 0.3 (3.8) 79 0.3 87.8 0. 50 43.7 (64) 0.6 9.044 (.) 0.4 (6.) 3438 <0.5 57.8 7.6 AVAIABE BORES s indicated in parenthesis are metric. Ø B, B H8 (3) /8 (4) 3/6 (5) (6) /4 (8) 3/8 (0) () / (6) 3/4 (0) 7 7 S S S 5 36 50 Bore Ref. 4 6 8 9 0 4 8 3 3 35 36 4 47 48 S = Setscrew only IMPORTANT oad capacity depends on application conditions: see page 4 for details P793HD /7... Huco 8888896637 +44 (0) 99 50900 7

FlexM Flexible Membrane s Rivetted Series Materials & Finishes Hubs & spacer: Al. Alloy 04 T6 Clear anodised finish Membranes: Spring quality stainless steel Heat treated Rivet assembly: Brass rivets flanked by formed steel washers Steel, zinc plate & colour passivate Fasteners: Alloy steel, black oiled Temperature Range 40ºF to + 48ºF (40 C to +0 C) Set screw hubs ØB3 ØB3 ØB ØB ØB ØB ØB ØB Ref. 460 for use in pairs or with floating shafts Ref. 464 for precisely aligned shafts Ref. 468 for greater radial misalignment and lower bearing loads Typical Clamp hubs ØB3 ØB3 ØB ØB ØB ØB ØB ØB Ref. 46 for use in pairs or with floating shafts Ref. 466 for precisely aligned shafts Ref. 470 for greater radial misalignment and lower bearing loads Typical Drive shafts Unless specified otherwise, drive shafts are supplied with set screw hubs inboard. Drive shafts are supplied to order. Please specify: size Hub style and bore diameter at each end Keyway details Overall length Minimum torsional stiffness, if critical Quantity 8 Huco 888896637 +44 (0) 99 50900... P793HD /7

DIMENSIONS & ORDER CODES 9 6 33 4 Set Hubs Clamp Hubs COUPING REF 460.9 464.9 468.9 460.6 464.6 468.6 460.33 464.33 468.33 460.4 464.4 468.4 PERFORMANCE 9 6 33 4 46.9 466.9 470.9 46.6 466.6 470.6 46.33 466.33 470.33 46.4 466.4 470.4 Ref. 460 & 46 464 & 466 468 & 470 460 & 46 464 & 466 468 & 470 460 & 46 464 & 466 468 & 470 460 & 46 464 & 466 468 & 470 STANDARD BORES 9 6 33 0.76 (9.).00 (5.6).3 (33.5).63 (4.5) 0.5 (3.0) 0.77 (9.6).07 (7.3) 0.80 (0.).06 (6.8).36 (34.5) 0.6 (5.8) 0.88 (.4).9 (30.) 0.86 (.8). (8.4).4 (36.) 0.89 (.5).6 (3.).69 (4.8).0 (30.5).58 (40.).00 (50.8).0 (7.).5 (38.5).97 (50.).46 (37.).9 (48.5).40 (60.) 0. (5.6) 0.36 (9.) 0.7 (6.9) 0.40 (0.0) 0.40 (0.0) 0.55 (4.0) 0.47 (.0) 0.67 (7.0 ØB, ØB max.5 (6.35) 0.39 (0) 0.50 (.7) 0.63 (6) ØB3 N/A 0.9 (7.3) N/A 0.9 (7.3) N/A 0.43 (.0) N/A 0.43 (.0) N/A 0.56 (4.) N/A 0.56 (4.) N/A 0.69 (7.5) N/A 0.69 (7.5) FlexM Flexible Membrane s Rivetted Series M3 M.5 M4 M.5 5 Peak torque lb 7 Max compensation 7 7.97 (0.9) 0.4 (.3) 49.6 (5.6) 00 (.3) Angular deg 4 4 4 4.5 3 3 Radial 0 (0).00 (0.).06 (0.4) 0 (0).00 (0.).06 (0.4) 0 (0).00 (0.).06 (0.4) 0 (0).00 (0.).06 (0.4) M5 M3 M6 M4 Axial Torsional (±mm) Nm / rad.004 (0.).00 (0.).00 (0.).004 (0.).00 (0.).00 (0.).004 (0.).004 (0.).00 (0.).004 (0.).00 (0.).00 (0.) 0 50 45 585 385 400 560 935 980 70 980 00 Fasteners 3 Wrench lb 8.3 (0.94).6 (.3) 0.0 (.7).6 (.3) 40.8 (4.6).5 (.43) 67.4 (7.6) 50. (5.66) 0.06 (.5) 0.08 () 0.08 () 0.08 () 0.0 (.5) 0.0 (.5) 0. (3) 0. (3) Flexural stiffness Angular N / deg 0.4 0.5 0.3 0.75 0.5 0.4. 4 4 4 Moment Mass of inertia kgm x 08 kg x 03 30 7 Radial N / mm 4 4 37 7 48 3 00 5 50 60 40 60 60 0 60 00 30 60 0 560 800 830 50 730 760 540 50 450 530 0 370 < 7 < 7 < 8 < 8 0 9 3 4 5 8 3 6 0 5 37 5 55 37 5 55 69 97 07 7 00 09 Axial N / mm ØB, ØB +0.00/ 0 (+0.03mm/0mm) (3) /8 (4) 3/6 (5) (6) /4 (8) (9) 3/8 (0) () () / (4) (5) 5/8 (6) 4 Bore ref. 4 6 8 9 0 4 8 30 3 3 33 35 36 38 40 4 4 Corresponding 5 53 55 57 59 60 bore adaptor Diameters for which a bore adaptor is shown can be adapted to smaller shaft sizes. See page 58 for details of metal bore adaptors. 3 4 5 6 7 IMPORTANT oad capacity depends on application conditions: see page 4 for details ength of supported thro bore. Clearance bore thro spacer. Maximum recommended tightening torque. Values apply with max bores. Peak torque. Select a size where Peak exceeds the application torque x service factor. (see page 4) Max. compensation values are mutually exclusive. Torsional stiffness values apply at 50% peak torque with no misalignment, measured shafttoshaft with largest standard bores. Note that in some vendors catalogues the given torsional stiffness applies to the membrane stack only, giving rise to a greater value. s indicated in parenthesis are metric. P793HD /7... Huco 8888896637 +44 (0) 99 50900 9

FlexM Flexible Membrane s Bolted Series Materials & Finishes Hubs & spacer: Al. Alloy 04A T6 Clear anodised finish Membranes: Spring quality stainless steel Heat treated Bolt assembly: Bolt, alloy steel, black oiled finish Bush assembly, steel, zinc plate & black chromate Safety washer, carbon steel, black/brown oiled finish Fasteners: Alloy steel, black oiled Temperature Range 40ºF to + 48ºF (40 C to +0 C) Set screw hubs ØB3 ØB3 ØB ØB ØB ØB ØB ØB Ref. 660 for use in pairs or with floating shafts Ref. 664 for precisely aligned shafts Ref. 668 for greater radial misalignment and lower bearing loads Typical Clamp hubs ØB3 ØB3 ØB ØB ØB ØB ØB ØB Ref. 66 for use in pairs or with floating shafts Ref. 666 for precisely aligned shafts Ref. 670 for greater radial misalignment and lower bearing loads Typical Drive shafts Unless specified otherwise, drive shafts are supplied with set screw hubs inboard and/ or bonded to link shaft. Drive shafts are supplied to order. Please specify: size Hub style and bore diameter at each end Keyway details Overall length Minimum torsional stiffness, if critical Quantity 0 Huco 888896637 +44 (0) 99 50900... P793HD /7

FlexM Flexible Membrane s Bolted Series DIMENSIONS & ORDER CODES 4 5 66 76 4 5 66 76 Set Hubs PERFORMANCE Clamp Hubs COUPING REF 660.4 664.4 668.4 660.5 664.5 668.5 660.66 664.66 668.66 Ref. 660 & 66 664 & 666 668 & 670 660 & 66 664 & 666 668 & 670 660 & 66 664 & 666 668 & 670 66 670 66.4 666.4 670.4 66.5 666.5 670.5 66.66 666.66 670.66 66.76 670.76.63 (4.5).05 (5.0).60 (66.0).99 (76.0).45 (36.9).89 (47.9).35 (59.7).45 (36.9).89 (47.9).35 (59.7).74 (44.).7 (55.0).85 (7.4).97 (50.0).39 (60.8) 3.07 (78.).38 (60.4).90 (73.6) 3.73 (94.7). (56.4).74 (69.6) 3.57 (90.7) 3.0 (8.) 4.98 (6.4) 5 6 7 Peak Max compensation torque Angular Radial Axial Torsional lb. deg Nm / rad (± mm) x 03 00 (.3) 65 (30) 53 (60) 885 (00) 0.67 (7.) 0.79 (0.0) 0.90 (.9).0 (8.0).0 (6.0).50 (38.0) 0.5 ØB, ØB max 0.63 (6) 0.79 (0).0 (8).50 (38) 0 (0).008 (0.).06 (0.4) 0 (0).008 (0.).06 (0.4) 0 (0).008 (0.).06 (0.4) 0 (0).06 (0.4) ØB3 N/A 0.66 (6.8) 0.69 (7.5) N/A 0.66 (6.8) 0.69 (7.5) N/A 0.87 (.0) N/A 0.87 (.0) N/A.3 (8.7).9 (30.) N/A.3 (8.7).9 (30.) N/A.54 (39).004 (0.).00 (0.).00 (0.).004 (0.).00 (0.).00 (0.).004 (0.).00 (0.).00 (0.).004 (0.).00 (0.) Fasteners 4 4 Moment 3 Wrench of inertia Mass lb. kgm x 08 x 03 60 63 M6 67.3 0. 680 90 (7.60) (3) 790 0 M4 M6 M5 M8 M5 M8 4.0.8.6 7.5 4.8 4.8 9.0.0.0 45.7 3 50. (5.66) 0.86 (7.60) 0 (.4) 6 (8.3) 0 (.4) 354 (40.0) Flexural stiffness Angular N / deg 3.7.6.6 0.0 5.0 5.0 84.0 3.0 3.0 78 34 0. (3) 0. (3) 0.6 (4) 0.6 (4) 0.6 (4) 0.4 (6) Radial N / mm 97 3 33 57 379 93 0 400 00 50 3740 5490 6840 5660 7470 8870 3370 8040 3400 400 9300 430 45658 6983 Axial N / mm < 8 < 9 < 9 < 9 74 0 4 68 08 64 08 47 7 360 447 69 357 444 59 804 3 4 5 6 7 IMPORTANT oad capacity depends on application conditions: see page 4 for details ength of supported thro bore. Clearance bore thro spacer. Maximum recommended tightening torque. Values apply with max bores. Peak torque. Select a size where Peak exceeds the application torque x service factor. (see page 4) Max. compensation values are mutually exclusive. Torsional stiffness values apply at 50% peak torque with no misalignment, measured shafttoshaft with largest standard bores. Note that in some vendors catalogues the given torsional stiffness applies to the membrane stack only, giving rise to a greater value. Note that the drawings on the facing page represent 66 & 76 which employ 6bolt membrane s 4 & 5 employ 4bolts STANDARD BORES 8 s indicated in parenthesis are metric. ØB, ØB +0.00/ 0 (+0.03mm/0mm) /4 (8) (9) 3/8 (0) () () / (4) (5) 5/8 (6) (8) (9) 3/4 (0) (4) (5) (8) 4 5 66 76 MANUFACTURED TO ORDER ONY. PEASE ENQUIRE Bore ref. Corresponding bore adaptor 4 8 30 3 3 33 35 36 38 40 4 4 45 46 47 48 5 5 53 54 53 55 57 59 60 6 Diameters for which a bore adaptor is shown can be adapted to smaller shaft sizes. See page 58 for details of metal bore adaptors. P793HD /7... Huco 8888896637 +44 (0) 99 50900

General Purpose Motion Control s Sliding Disc (Oldham) Universal ateral (Uniat) Backlashfree up to 0 8 turns Can tolerate large misalignments Slight damping characteristics Flexfree mechanical action nonprogressive bearing loads Nonmagnetic (with special screws) Electrically isolating ow inertia Uniats are widely used for pulse generator drives while Oldhams are very popular for stepper driven positioning stages. A unique property of Uniats is resistance to axial motion. This makes them suitable for light push/pull duties and for anchoring axially unrestricted shafts. Oldhams are 3part couplings consisting of hubs + torque disc. The hubs determine the method of installation and shaft attachment, the discs determine the quality of motion. The 4 hub styles and disc materials that comprise the range are fully interchangeable within each of the 9 sizes available. To take advantage of this flexibility, hubs and discs are specified and supplied separately. The discs are the sacrificial elements and are replaceable at low cost in the event of wear or breakage. Huco 888896637 +44 (0) 99 50900... P793HD /7

Oldham ateral Offset s General Performance Criteria Temperature Range 0ºF to +40ºF (0 C to +60 C) Maximum Rotational Speed 3000 rev/min Blind hubs: ength of parallel bore ±0.. Bores may terminate in 8 incl. angle or flat bottomed. Thro hubs: Max permissible hub penetration. 8º Included Angle Flat Bottomed Blind hubs: Nominal distance between unchamfered shafts bottomed out to. Thro hubs: Nominal distance between shafts with standard (unbored) disc. 3 4 5 6 7 8 Maximum recommended tightening torque. Values apply to complete couplings with max bores. Peak torque. Select a size where Peak exceeds the application torque x service factor. s can provide up to ( x 0.) radial compensation in extreme cases. Observe given values for maximum backlashfree life. Axial compensation is set on installation. Electrical isolation between shafts > 3kV. Values apply at 50% peak torque with no misalignment, measured shafttoshaft with largest standard bores. Thro hubs can be provided with keyways. Blank hubs Useradaptable for special needs, e.g. fitting within tubes. Blank hubs are supplied centred with no provision for fastening. External dimensions identical with blind hubs. size Complete hub ref. 06 3.06.00 0.5 (6.4) 0.50 (.7) 09 3.09.00 0.37 (9.5) 0.50 (.7) 3 3.3.00 0.50 (.7) 0.63 (5.9) 9 3.9.00 0.75 (9.) 0.87 (.0) 5 3.5.00.00 (5.4). (8.4) 33 3.33.00.3 (33.3).65 (4.0) 4 3.4.00.63 (4.3).00 (50.8) Standard discs (larger sizes are webbed) Thro bored discs Acetal Nylon High torsional stiffness, good bearing properties, long backlashfree life. Resilient, isolates noise & vibration. Performance approximately 5% that of acetal disc. Thro bored discs allow shafts to nearbutt, standard thro hole diameter = x 0.5. To order, add suffix T to order code, eg., 36.5T Other thro hole diameters are manufactured to order. Specify the disc ref. and thro hole diameter. This should equal the larger shaft diameter + x max radial error. Note that thro bored discs reduce torsional stiffness. P793HD /7... Huco 8888896637 +44 (0) 99 50900 3

Oldham Brass / Aluminium Blind Hubs disc disc ØB ØB Controlled bore depth provides a register when preassembling hubs to shafts Set screw style Clamp style Refs. 3 Set screw style Refs. 34 Clamp style DIMENSIONS & ORDER CODES Hub Ref Dimensions Fasteners Disc Ref 4 4 3 Type and ØB Max Set Moment Wrench Mass kg Acetal Nylon Clamp Style of Inertia lb.in Style kgm x03 (black) Std. (Natural) x08 06 3.06.5 (6.4) 0.5 (.7) 0.5 (3.8) 0.0 (5.) 0.3 (3.8) 6.5 M3 8.3 (0.94) 0.06 (.5) 36.06 38.06 Blind Hubs 09 3.09.37 (9.50 0.5 (.7) 0.5 (3.8) 0.0 (5.) 0.0 (5) 8 4 M3 8.3 (0.94) 0.06 (.5) 36.09 38.09 3 3.3 0.5 (.7) 0.63 (5.9) 0.7 (4.3) 0.9 (7.3) 0.5 (6.35) 6 M3 8.3 (0.94) 0.06 (.5) 36.3 38.3 9 5 33 4 3.9 M3 8.3 (0.94) 0.06 (.5).75 (9.) 0.87 (.0) 0.5 (6.3) 0.37 (9.4) 0.3 (8) 67 34.9 M.5.6 (.3) 0.08 (.0) 3.5 M4 0. (.7) 0.08 (.0).0 (5.4). (8.4) 0.34 (8.6) 0.44 (.) 0.47 () 5 3 34.5 M3.5 (.43) 0.0 (.5) 3.33 M5 40.9 (4.6) 0.06 (.5).3 (3.3).65 (4.0) 0.5 (3.0) 0.63 (6.0) 0.63 (6) 074 7 34.33 M4 0.6 (.33) 0.08 (.0) 3.4 M5 40. (4.6) 0.0 (.5).6 (4.3). 0 (50.8) 0.66 (6.7) 0.69 (7.4) 0.79 (0) 337 48 34.4 M4 50. (5.66) 0. (3.0) 36.9 38.9 36.5 38.5 836.33 838.33 36.4 38.4 PERFORMANCE (AT 0 C WITH STANDARD ACETA DISC) 06 0.53 (0.06) 09 3 9 5 33 4 5 Peak torque 6 Max compensation @ 3000 rpm 7 lbs. Angular Radial Axial Rate deg (± mm) deg / Nm.90n (0.) 4.43 (0.5) 5.0 (.7) 35.4 (4) 79.7 (9) 5 (7) 0.5.004 (0.).004 (0.).004 (0.).008 (0.).008 (0.).008 (0.).0 (0.5) STANDARD BORES FOR A TYPES.00 (0.05) 5.7.00 (0.05).00 (0.05).004 (0.).004 (0.).006 (0.5).006 (0.5).9 0.88 0.50 0.8 0.093 0.048 Torsional Stiffness Nm / rad 0 30 65 5 05 65 00 Static break torque lbs. 6. (0.7) 7.8 () 35.4 (4) 70. (8) 5 (3) 469 (53) 504 (57) Materials & Finishes Hubs sizes 06 to 3 : Brass Cu Zn Si 3P [ead Free] Hub sizes 9 to 4: Al Alloy 04 6 Fasteners: Aluminum: IMPORTANT Alloy steel, black oiled Irridite NCP finish oad capacity depends on application conditions: see page 4 for details ØB, ØB +0.00/ 0 (+0.03mm/0mm) () (3) /8 (4) 3/6 (5) (6) /4 (8) 3/8 (0) () / (4) (5) 5/8 (6) (8) (9) 3/4 (0) (4) (5) (30) 06 09 3 9 5 33 4 Bore ref. s indicated in parenthesis are metric. 4 6 8 9 0 4 8 3 3 35 36 38 40 4 4 45 46 47 48 5 5 56 4 Huco 888896637 +44 (0) 99 50900... P793HD /7

Oldham Aluminium Thro Hubs disc disc ØB ØB Thro bores allow disc replacement without disturbing shaft alignment Set screw style Clamp style Refs. 450 Set screw style Refs. 45 Clamp style DIMENSIONS & ORDER CODES Type and Thro Hubs Set Style Hub Ref Dimensions Fasteners Disc Ref Clamp Style 4 4 3 ØB Max Moment Mass kg of Inertia lb.in kgm x03 x08 3 450H3 0.5 (.7) 0.63 (5.9) 0. (5.5) 0.08 (.7) 0.5 (6.35) 0 0 M3 8.3 (0.94) 0.06 (.5) 36.3 38.3 9 5 33 4 50 57 Wrench 450H9 M4 0 (.7) 0.08 (.0).75 (9.).0 (6.0) 0.37 (9.4) 0.8 (7.) 0.3 (8) 59 3 45H9 M.5.6 (.3) 0.08 (.0) 450H5 M5 40.9 (4.6) 0.0 (.5).0 (5.4).8 (3.4) 0.46 (.6) 0.36 (9.) 0.47 () 5 3 45H5 M3.5 (.43) 0.0 (.5) 450H33 M6 67.4 (7.6) 0. (3.0).3 (33.3).65 (4.0) 0.59 (5.0) 0.47 (.0) 0.63 (6) 080 67 45H33 M4 50. (5.66) 0. (3.0) 450H4 M6 67.4 (7.6) 0. (3.0).6 (4.3).0 (50.8) 0.70 (7.8) 0.60 (5.3) 0.79 (0) 377 4 45H4 M4 50. (5.66) 0. (3.0) 450H50 M8 6 (8.36) 0.6 (4.0).97 (50.0).35 (59.6) 0.8 (0.6) 0.7 (8.4).0 (5.4) 7550 08 45H50 M5 0 (.40) 0.6 (4.0) 450H57 M8 6 (8.36) 0.6 (4.0).5 (57.) 3.07 (78.0). (8.4) 0.83 (.).8 (30) 40 36 45H57 M6 7 (9.34) 0.0 (5.0) Acetal (black) Std. Nylon (Natural) 36.9 38.9 36.5 38.5 836.33 838.33 36.4 38.4 36.50 36.57 PERFORMANCE (AT 0 C WITH STANDARD ACETA DISC) 3 9 5 33 4 50 57 5 Peak torque 6 Max compensation @ 3000 rpm 7 lbs. Angular Radial Axial Rate deg (± mm) deg / Nm 4.43 (0.5) 5.0 (.7) 35.4 (4) 79.7 (9) 5 (7) 66 (30) 389 (44) 0.5.004 (0.).008 (0.).008 (0.).008 (0.).0 (0.5).0 (0.5).0 (0.5).00 (0.05).004 (0.).004 (0.).006 (0.5).006 (0.5).008 (0.).008 (0.) 0.88 0.50 0.8 0.093 0.048 0.04 0.0 Torsional Stiffness Nm / rad 65 5 05 65 00 375 60 Static break torque lbs. 35.4 (4) 70. (8) 5 (3) 469 (53) 504 (57) 84 (95) 38 (50) Materials Finishes Hub sizes 3 to 57 : Al Alloy 04A 6 Fasteners: Hubs: IMPORTANT Alloy steel, black oiled Clear anodised finish oad capacity depends on application conditions: see page 4 for details 8 STANDARD BORES FOR A TYPES 3 9 5 33 4 50 57 Bore ref. s indicated in parenthesis are metric. ØB, ØB +0.00/ 0 (+0.03mm/0mm) () (3) /8 (4) 3/6 (5) (6) /4 (8) 3/8 (0) () / (4) (5) 5/8 (6) (8) (9) 3/4 (0) (4) (5) (30) 4 6 8 9 0 4 8 3 3 35 36 38 40 4 4 45 46 47 48 5 5 56 P793HD /7... Huco 8888896637 +44 (0) 99 50900 5

Oldham Stainless Steel Thro Hubs disc disc ØB ØB Thro bores allow disc replacement without disturbing shaft alignment Set screw style Clamp style Ref. 850 Set screw style Ref. 85 Clamp style DIMENSIONS & ORDER CODES 3 850.3 0.5 (.7) 0.63 (5.9) 0. (5.5) 0.08 (.7) 0.5 (6.35) 6 4 M3.83 (0.3) 0.06 (.5) 36.3 38.3 9 5 33 4 50 Set Style Hub Ref Dimensions Fasteners Disc Ref Clamp Style 850.9 85.9 850.5 85.5 850.33 85.33 850.4 85.4 850.50 85.50 ØB Max Moment of Inertia kgm x08 Mass kg x03 0.75 (9.).0 (6.0) 0.37 (9.4) 0.8 (7.) 0.3 (8.0) 0 45.0 (5.4).8 (3.4) 0.46 (.6) 0.36 (9.) 0.47 (.0) 587 76.3 (33.3).65 (4.0) 0.60 (5.0) 0.36 (.0) 0.63 (6.0) 09 65.63 (4.3).0 (50.8) 0.70 (7.8) 0.6 (5.3) 0.79 (0.0) 68 305.97 (50.0).35 (59.6) 0.8 (0.6) 0.8 (0.6).0 (5.4) 7368 50 lbs. A/F M4 9.3 (.05) 0.08 (.0) M.5 6.0 (0.68) 0.08 (.0) M5 8.6 (.) 0.0 (.5) M3 0.6 (.) 0.0 (.5) M6 33.6 (3.8) 0. (3.0) M4 5.7 (.9) 0. (3.0) M6 33.6 (3.8) 0. (3.0) M5 5. (5.9) 0.6 (4.0) M8 79.7 (9.0) 0.6 (4.0) M6 86.7 (9.8) 0.0 (5.0) Acetal (black) Std. Nylon (Nat) 36.9 38.9 36.5 38.5 836.33 838.33 36.4 38.4 36.50 N/A PERFORMANCE (AT 0 C WITH STANDARD ACETA DISC) 3 9 5 33 4 50 5 Peak torque 6 Max compensation @ 3000 rpm 7 lbs. Angular Radial Axial Rate deg (± mm) deg / Nm 4.43 (0.5) 5.0 (.7) 35.4 (4) 79.7 (9) 5 (7) 66 (30) 0.5.004 (0.).008 (0.).008 (0.).008 (0.).0 (0.5).0 (0.5).00 (0.05).004 (0.).004 (0.).006 (0.5).006 (0.5).008 (0.) 0.88 0.50 0.8 0.093 0.048 0.04 Torsional Stiffness Nm / rad 65 5 05 65 00 375 Static break torque lbs. 35.4 (4) 70. (8) 5 (3) 469 (53) 504 (57) 84 (95) Materials Finishes Hubs: Fasteners: Stainless Steel 303 S3 Natural Finish Stainless Steel IMPORTANT oad capacity depends on application conditions: see page 4 for details 8 STANDARD BORES FOR A TYPES 3 9 5 33 4 50 Bore ref. ØB, ØB +0.00/ 0 (+0.03mm/0mm) () (3) /8 (4) 3/6 (5) (6) /4 (8) 3/8 (0) () / (4) (5) 5/8 (6) (8) (9) 3/4 (0) (4) (5) (30) s indicated in parenthesis are metric. 4 6 8 9 0 4 8 3 3 35 36 38 40 4 4 45 46 47 48 5 5 56 6 Huco 888896637 +44 (0) 99 50900... P793HD /7

Materials & Finishes Uniat Universal / ateral Offset s Hub sizes 8 & 7: Hub sizes 34, 4 & 70 : Fasteners: Clam p rings (sizes 8 & 7): Brass BS CZ Al. Alloy 04 T6 Irridite NCP Alloy steel, black oiled Al. Alloy 04 T6 Irridite NCP Torq ue rings, all sizes: Acetal (black) Temperature Range 0ºF to +40ºF (0 C to +60 C) Set screw hubs ref. ØB ØB ØB ØB ØB ØB 8 0.66 (6.7) 7 0.88 (.3) 34.0 (8.0) 4.3 (33.3) Ref. 0 Small bores Ref. 03 arge bores Ref. (not listed in main table). Combines large & small bores. See explanatory note on facing page Clamp hubs ØB ØB ØB ØB Ref. 07 Collet hub & ring clamp Ref. 05 Integral leaf clamp Typical Installation right Up to 0 angular offset, depending on type right Up to mm radial offset for extreme misalignments wrong Standard Uniats cannot be used in pairs. Special versions are available for use in this mode. Please enquire. P793HD /7... Huco 8888896637 +44 (0) 99 50900 7

Uniat Universal / ateral Offset s DIMENSIONS & ORDER CODES 8 7 34 Set Hubs Clamp Hubs 4 4 Fasteners Moment 3 of inertia ØB, ØB max lb. Wrench kgm kg COUPING REF x 08 x 03 0.8.7.56 (4.).8 (4.6) 0.0 (5) 8.3 0.06 (8.0) 0.0 M3 0 7 03.8.75 0.8 (0.94) (.5) (5.) 0.5 07.8 8 0.75 (9.) (9.) (7.0) (6.35) M.5.6 (.3) 0.08 (.0) 55 0.7 03.7 0.34 03.34 07.7 8 05.34.0 (8.0).33 (33.7).75 (9.) 0.4 (6.).0 (5.4) 0.7 (6.9).99 (5.) 0.3 (8.) 0.38 (0) 0.35 0.5 (.7) (8.9). (30.7) 0.37 (9.3) 0.43 (0.9) 0.3 (8) 0.39 (0) 0.38 (0) 0.4. (8.4) 0.34 (8.6) 0.5 (.7) 4.63 0.44 03.4.5 0.53 0.63 (6) (4.4) (.) 05.4 (38.) (3.5) 0.5 (.7) 70 03.70 05.70.4 (69.0).9 (74.0). (8.5) 0.67 (7.0) 0.87 () M3 M3 M4 M.5 M4 M5 M4 0.87 () M6 M6 8.3 (0.94) 0.06 (.5).5 (.43) 0.0 (.5) 0. (.7).6 (.3).08 (.0) 0. (.7).08 (.0) 40.9 (4.6) 0.0 (.5) 50. (5.66) 0. (3.0) 67 (7.60) 0. (3.0) 70 (9.3) 0.0 (5.0) Mass 9 6 0 65 83 476 550 735 735 6 7 0 30 40 89 89 3 4 5 6 7 ength of supported thro bore. Shafts must not penetrate beyond when in operation. Nominal distance between shafts inserted to. Maximum recommended tightening torque. Values apply with max bores. Peak torque. Select a size where Peak exceeds the application torque x service factor. (see page 4) s can provide up to mm radial and 0 angular compensation (5 for ref. 07) when required. Observe given values for maximum backlashfree life. Electrical isolation between shafts > 3kV for all models when offset 5. Values apply at 50% peak torque with no misalignment, measured shafttoshaft with largest standard bores. Ref. 07 only. Insert both bore codes in place of. PERFORMANCE AT 0 C 5 6 Peak Max compensation 7 torque @ 3000 rpm lb. Angular Radial deg 8.66 (0.3) 8 7 34 4 70 0.8 03.8 07.8 0.7 03.7 07.7 0.34 03.34 05.34 5. (.7). (.5) 3.0 (3.5) 06 (.)0 STANDARD BORES size 7 34 4 70 ref. 0.4 03.4 05.4 03.70 05.70 Bore ref. Corresponding bore adaptor.008 (0.).008 (0.).00 (0.5).00 (0.5).00 (0.5) Rate deg / Nm.3 0.6 0.4 0.9 0.9 Torsional Stiffness Nm / rad 5 9 55 7.97 (0.9) 9 3 350 46 34 300 99 300 Max loading ±N 39 75 Axial Stiffness N / mm 50 540 Static break torque lb. 44.3 (5.0) 66.4 (7.5) 9.9 (0.5) 60 (68) 45 ref. By specifying ref. (not listed in tables, see diagram previous page) you can combine the bores coded for ref. 0 with those coded for ref. 03, eg.,.7.43 specifies 7 with Ø6.35 x 0 bores. s indicated in parenthesis are metric. ØB, ØB +0.00/ 0 (+0.03mm/0mm) (3) /8 (4) 3/6 (5) (6) /4 5/6 (8) 3/8 (0) () / (4) 5/8 (6) (8) (9) 3/4 (8) 4 6 8 9 0 5 4 53 7 8 3 3 54* 55 57 Diameters for which a bore adaptor is shown can be adapted to smaller shaft sizes. See page 58 for details. 35 36 38 *Note that adaptor 54 is dedicated to coupling ref. 0.7. Use adaptor 55 for all other 8mm diameters. 59 4 4 60 IMPORTANT oad capacity depends on application conditions: see page 4 for details 46 47 48 6 8 Huco 888896637 +44 (0) 99 50900... P793HD /7

Beam s MultiBeam SingleBeam StepBeam Torsionally rigid design Zero backlash No moving parts Single beam simple coupling compatible with industry standard types 3Beam single stage for increased torsional stiffness 6Beam two stage for torsional stiffness and increased radial compliance Step Beam for low inertia, electrical isolation, low cost Beam couplings will readily accommodate any combination of axial motion, angular and parallel misalignment. The 3 start helicalcut design provides higher torque capability and reduced windup compared with single beam versions. MultiBeam is available in three standard materials: stainless steel, aluminium and acetal, for shaft diameters from mm to 38mm. P793HD /7... Huco 8888896637 +44 (0) 99 50900 9

MultiBeam Stainless Steel MultiHelix Flexible 3 Beam s Set Hubs Clamp Hubs Materials & Finishes s: Stainless Steel 303 S3 Fasteners: Stainless Steel Temperature Range Ø D Ø B Ø B Ø D Ø B Ø B 40ºF to +84ºF (40 C to +40 C) 3BEAM COUPINGS: DIMENSIONS & ORDER CODES Type & Relieved Set Style Clamp Type COUPING REF BORE SIZES 3BEAM COUPINGS Min B Bore Diameters Min B Max B & B Mass kgx03 Set Cap Fasteners lbs. Wrench s indicated in parenthesis are metric. Angular Offset Deg. Parallel Offset mm Torsional Stiffness Nm/rad 3 Peak lb.in 6 70.06.5 (6.4) 0.5 (.7).3 (3.).0.0 3.0.93 M 0.7 (0.08).035 (0.9) 3.003 (.07).53 3.98 (0.45) 9 3 6 9 5 3 70.09 M.5.04 (0.3).05 (.3).37 (9.5).56 (4.).8 (4.5).0 3.0 3.8 5.85 7.09 M.6.33 (0.5).059 (.5) 70.3 M3.83 (0.3).059 (.5) 0.5 (.7).75 (9.).4 (6.0) 3.0 4.0 5.0 3.7 7.3 M.66 (0.30).059 (.5) 70.6 M4 9.9 (.05).079 (.0).63 (5.9).80 (0.3).6 (6.5) 3.0 4.0 6.35.9 7.6 M.5 6.0 (0.68).079 (.0) 70.9 M4 9.9 (.05).079 (.0).75 (9.).90 (.9).6 (6.5) 4.0 4.76 8.0 35.9 7.9 M.5 6.0 (0.68).079 (.0) 70.5 M5 8.6 (.0).098 (.5).0 (5.4).5 (3.8).35 (9.0) 5.0 6.0 0 9. 7.5 M3 0.6 (.0).098 (.5) 70.3 M6 33. (3.75) 0. (3.0).5 (3.8).75 (44.5).47 (.0) 6.0 8.0 4 94 7.3 M4 5. (.85) 0. (3.0) ength of supported bore. Max. compensation values are mutually exclusive. 3 Peak torque. Select a size where Peak exceeds the application torque x service factor. (see page 4) ØB, ØB +0.00/ 0 (+0.03mm/0mm) () () (3) /8 (4) 3/6 (5) (6) /4 (8) 3/8 (0) () / (4) 6 9 3 6 9 5 3 Bore ref. 8 4 6 8 9 0 4 8 3 3 35 36 38 3.004 (0.) 6 4.43 (0.50) 5.005 (.7) 54 8.85 (.0) 5.005 (.7) 8 5.9 (.80) 5.005 (.7) 43 3.9 (.70) 5.005 (.7) 75 53. (6.0) 5.005 (.7) 378 88.5 (0.0) B only B & B 30 Huco 888896637 +44 (0) 99 50900... P793HD /7

Set Hubs MultiBeam Stainless Steel MultiHelix Flexible 6 Beam s NonRelieved Clamp Hubs Materials & Finishes s: Stainless Steel 303 S3 Fasteners: Stainless Steel Temperature Range Ø D Ø B Ø B Ø D Ø B Ø B 40ºF to +84ºF (40 C to +40 C) 6BEAM COUPINGS: DIMENSIONS & ORDER CODES Type & NonRelieved 09 3 6 9 5 3 38 44 5 57 64 Set Style Clamp Type COUPING REF Min B Bore Diameters Min B Max B & B Mass kgx03 Set Cap Fasteners lbs. Wrench 70.09 0.4 0.77 0. M.5.04 (0.3) 0.5 (.3) (9.5) (9.6) (5.3).0 4.0 4.76 7.0 703.09 M.6.33 (0.5) 0.59 (.5) 70.3 0.5.00 0.6 M3.83 (0.3) 0.59 (.5) (.7) (5.4) (6.5) 3.0 5.0 6.35 7.0 703.3 M.66 (0.30) 0.59 (.5) 70.6 0.63.00 0.6 M4 9.9 (.05).079 (.0) (5.9) (5.4) (6.5) 3.0 6.0 8.0 8.0 703.6 M.5 6.0 (0.68).079 (.0) 70.9 0.75.0 0.6 M4 9.9 (.05).079 (.0) (9.) (8.0) (6.5) 4.76 6.35 0.0 44.0 703.9 M.5 6.0 (0.68).079 (.0) 70.5.00.50 0.43 M5 8.6 (.0).098 (.5) (5.4) (38.) (.0) 5.0 8.0.7 09 703.5 M3 0.6 (.0).098 (.5) 70.3 9.0 M6 33. (3.75) 0. (3.0).5 (3.8).5 (57.) 0.63 (6.0) 8.0 0.0 6 703.3 6.0 M4 5. (.85) 0. (3.0) 70.38.0 M6 33. (3.75) 0. (3.0).50 (38.).63 (66.7) 0.7 (8.0) 8.0.0 443 703.38 9.0 M5 5.8 (5.85) 0.6 (4.0) 70.44 5.0 M6 33. (3.75) 0. (3.0).75 (44.5) 3.00 (76.) 0.79 (0.0) 9.0 4.0 687 703.44.0 M5 5.3 (5.80) 0.6 (4.0) 70.5 8.0 M8 80.0 (9.00) 0.6 (4.0).00 (50.8) 3.75 (95.3) 0.98 (5.0) 0.0 6.0 6 703.5 6.0 M6 86.3 (9.75) 0.0 (5.0) 70.57 3.0 M8 80.0 (9.00) 0.6 (4.0).5 (57.) 5. (30).6 (3.0) 0.0 0.0 944 703.57 30.0 M6 86.3 (9.75) 0.0 (5.0) 70.64 38.0 M8 80.0 (9.00) 0.6 (4.0).5 (63.5) 5.9 (50).5 (38.0).0 5.0 334 703.64 36.0 M8 (4.0) 0.4 (6.0) ength of supported bore. Max. compensation values are mutually exclusive. Angular Offset Deg. 3 Peak torque. Select a size where Peak exceeds the application torque x service factor. (see page 4) Parallel Offset mm Torsional Stiffness Nm/rad 3 Peak lb.in 3.0.00 (0.) 5.4 3.3 (.5) 5.0.007 (0.7) 5 6.6 (3.0) 5.0.008 (0.) 45 44. (5.0) 7.0 0.0 (0.5) 7 70.8 (8.0) 7.0.05 (0.38) 70 4.6 (6.0) 7.0 0.0 (0.5) 364.3 (5.0) 7.0.04 (0.6) 634 38.6 (36.0) 7.0.03 (0.8) 945 44.8 (48.0) 7.0 0.35 (0.9) 305 646. (73.0) 7.0.037 (0.95) 755 90.8 (0.0) 7.0 0.39 (.0) 340,39.0 (40.0) BORE SIZES 6BEAM COUPINGS, NONREIEVED s indicated in parenthesis are metric. ØB, ØB +0.00/ 0 (+0.03mm/0mm) () (3) /8 (4) 3/6 (5) (6) /4 (8) 3/8 (0) () / (4) 5/8 (6) (8) (9) 3/4 (0) (4) (5) (8) (30) /4 (3) 9 3 6 9 5 3 38 44 5 57 64 Bore ref. 4 6 8 9 0 4 8 3 3 35 36 38 4 4 45 46 47 48 5 5 53 54 56 57 58 B only B & B P793HD /7... Huco 8888896637 +44 (0) 99 50900 3

MultiBeam Stainless Steel MultiHelix Flexible 6 Beam s Set Hubs Clamp Hubs Materials & Finishes s: Stainless Steel 303 S3 Fasteners: Stainless Steel Temperature Range Ø D Ø B Ø B Ø D Ø B Ø B 40ºF to +84ºF (40 C to +40 C) 6BEAM COUPINGS: DIMENSIONS & ORDER CODES Type & Relieved 09 3 6 9 5 3 38 44 5 57 64 Set Style Clamp Type COUPING REF Min B Bore Diameters Min B Max B & B Mass kgx03 Fasteners 3 Huco 888896637 +44 (0) 99 50900... P793HD /7 Set Cap lbs. Wrench 7.09 0.4 0.77 0. M.5.77 (0.) 0.5 (.3) (9.5) (9.6) (5.3).0 3.0 4.76 6.5 73.09 M.6.33 (0.5) 0.59 (.5) 7.3 0.5.00 0.6 M3.83 (0.3) 0.59 (.5) (.7) (5.4) (6.5) 3.0 4.0 6.35 5.0 73.3 M.66 (0.30) 0.59 (.5) 7.6 0.63.00 0.6 M4 9.9 (.05).079 (.0) (5.9) (5.4) (6.5) 3.0 4.0 8 4.0 73.6 M.5 6.0 (0.68).079 (.0) 7.9 0.75.0 0.6 M4 9.9 (.05).079 (.0) (9.) (8.0) (6.5) 4.76 5.0 0 37.0 73.9 M.5 6.0 (0.68).079 (.0) 7.5.00.50 0.43 M5 8.59 (.0).098 (.5) (5.4) (38.) (.0) 5.0 6.0.7 99.0 73.5 M3 0.6 (.0).098 (.5) 7.3 9.0 M6 33. (3.75) 0. (3.0).5 (3.8).5 (57.) 0.63 (6.0) 8.0 9.53 36 73.3 6.0 M4 5.8 (5.85) 0. (3.0) 7.38.0 M6 33. (3.75) 0. (3.0).50 (38.).63 (66.7) 0.7 (8.0) 8.0.0 400 73.38 9.0 M5 5.8 (5.85) 0.6 (4.0) 7.44 5.0 M6 33. (3.75) 0. (3.0).75 (44.5) 3.00 (76.) 0.79 (0.0) 9.0 4.0 53 73.44.0 M5 5.3 (5.80) 0.6 (4.0) 7.5 8.0 M8 80.0 (9.00) 0.6 (4.0).00 (50.8) 3.75 (95.3) 0.98 (5.0) 0.0 6.0 996 73.5 6.0 M6 86.3 (9.75) 0.0 (5.0) 7.57 3.0 M8 80.0 (9.00) 0.6 (4.0).5 (57.) 5. (30).6 (3.0) 0.0 0.0 708 73.57 30.0 M6 86.3 (9.75) 0.0 (5.0) 7.64 38.0 M8 80.0 (9.00) 0.6 (4.0).5 (63.5) 5.9 (50).5 (38.0).0 5.0 300 73.64 36.0 M8 (4.0) 0.4 (6.0) ength of supported bore. Max. compensation values are mutually exclusive. BORE SIZES 6BEAM COUPINGS, REIEVED Angular Offset Deg. 3 Peak torque. Select a size where Peak exceeds the application torque x service factor. (see page 4) 4 Parallel Offset mm Torsional Stiffness values based on maximum bores, for smaller bore combinations the values are nearer the nonrelieved type. Torsional Stiffness Nm/rad 3 Peak lb.in 3.0.00 (0.) 3. 797 (0.9) 5.0.007 (0.7) 5.0 6.8 (.9) 5.0.008 (0.) 7.0 30.09 (3.4) 7.0 0.0 (0.5) 43.0 4.48 (4.8) 7.0.05 (0.38) 0 88.5 (0.0) 7.0 0.0 (0.5) 8 5. (3.0) 7.0.04 (0.6) 380 7.0 (0.0) 7.0.03 (0.8) 567 39.0 (7.0) 7.0 0.35 (0.9) 783 37.5 (37.0) 7.0.037 (0.95) 053 44.5 (50.0) 7.0 0.39 (.0) 400 757.3 (65.0) s indicated in parenthesis are metric. ØB, ØB +0.00/ 0 (+0.03mm/0mm) () (3) /8 (4) 3/6 (5) (6) /4 (8) 3/8 (0) () / (4) 5/8 (6) (8) (9) 3/4 (0) (4) (5) (8) (30) /4 (3) 9 3 6 9 5 3 38 44 5 57 64 Bore ref. 4 6 8 9 0 4 8 3 3 35 36 38 4 4 45 46 47 48 5 5 53 54 56 57 58 B only B & B 4

MultiBeam Aluminium MultiHelix Flexible 3 Beam s Set Hubs Clamp Hubs Materials & Finishes s: Fasteners: Aluminium 68 or better Alloy steel, black oiled Temperature Range Ø D Ø B Ø B Ø D Ø B Ø B 40ºF to +84ºF (40 C to +0 C) 3BEAM COUPINGS: DIMENSIONS & ORDER CODES Type & Relieved Set Style Clamp Type COUPING REF BORE SIZES 3BEAM COUPINGS Min B Bore Diameters Min B Max B & B Mass kgx03 Set Cap Fasteners lbs. Wrench s indicated in parenthesis are metric. Angular Offset Deg. Parallel Offset mm Torsional Stiffness Nm/rad 3 Peak lb.in 6 74.06.5 (6.4) 0.5 (.7).3 (3.).0.0 3.0 0.7 M.77 (0.).035 (0.9) 3.0.003 (.07).53 354 (0.40) 9 3 6 9 5 3 74.09.37.56 M.5 (9.5) (4.).8 (4.5).0 3.0 3.8. 4.87.05 (.3) 75.09 M.6 (0.55).059 (.5) 74.3 0.5.75 M3 (.7) (9.).4 (6.0) 3.0 4.0 5.0 5.0 8.0.059 (.5) 75.3 M (0.90).059 (.5) 74.6.63.80 M4 (5.9) (0.3).6 (6.5) 3.0 4.0 6.35 8. 9.5.079 (.0) 75.6 M.5 (.).079 (.0) 74.9.75.90 M4 (9.) (.9).6 (6.5) 4.0 4.76 8.0.8 9.5.079 (.0) 75.9 M.5 (.).079 (.0) 74.5.0.5 M5 (5.4) (3.8).35 (9.0) 5.0 6.0 0 3.6 40.7.098 (.5) 75.5 M3 (4.6).098 (.5) 74.3.5.75 M6 (3.8) (44.5).47 (.0) 6.0 8.0 4 70 67.3 0. (3.0) 75.3 M4 (7.6) 0. (3.0) ength of supported bore. Max. compensation values are mutually exclusive. 3 Peak torque. Select a size where Peak exceeds the application torque x service factor. (see page 4) ØB, ØB +0.00/ 0 (+0.03mm/0mm) () () (3) /8 (4) 3/6 (5) (6) /4 (8) 3/8 (0) () / (4) 6 9 3 6 9 5 3 Bore ref. 8 4 6 8 9 0 4 8 3 3 35 36 38 3.0 5.0 5.0 5.0 5.0 5.0.004 (0.).005 (.7).005 (.7).005 (.7).005 (.7).005 (.7) 5.4 8.0 38.0 65.0 38 354.0 (0.40) 796.57 (0.90) 3.8 (.50).3 (.50) 35.4 (4.0) 53. (8.0) B only B & B P793HD /7... Huco 8888896637 +44 (0) 99 50900 33

MultiBeam Aluminium MultiHelix Flexible 6 Beam s NonRelieved Set Hubs Clamp Hubs Ø D Ø B Ø B Ø D Ø B Ø B Materials & Finishes s: Fasteners: Aluminium 68 or better Alloy steel, black oiled Temperature Range 40ºF to +84ºF (40 C to +0 C) 6BEAM COUPINGS: DIMENSIONS & ORDER CODES Type & NonRelieved 09 3 6 9 5 3 38 44 5 57 64 Set Style Clamp Type COUPING REF Min B Bore Diameters Min B Max B & B Mass kgx03 Set Cap Fasteners lbs. Wrench 706.09 0.4 0.77 0. M.5 4.87 (0.55) 0.5 (.3) (9.5) (9.6) (5.3).0 4.0 4.76.85 707.09 M.6.60 (0.9) 0.59 (.5) 706.3 0.5.09 0.6 M3 8.0 (0.90) 0.59 (.5) (.7) (.9) (6.5) 3.0 5.0 6.35 5.5 707.3 M 5.84 (0.66) 0.59 (.5) 706.6 0.63.00 0.6 M4. (.5).098 (.5) (5.9) (5.4) (6.5) 3.0 6.0 8 9,8 707.6 M.5.5 (.3).079 (.0) 706.9 0.75.04 0.6 M4. (.5).098 (.5) (9.) (6.5) (6.5) 4.76 6.35 0 4.0 707.9 M.5.5 (.3).079 (.0) 706.5.00.50 0.43 M5 40.7 (4.6).098 (.5) (5.4) (38.) (.0) 5.0 8.0.7 38.0 707.5 M3. (.4).098 (.5) 706.3.5.5 0.63 9.0 M6 67.3 (7.6) 0. (3.0) (3.8) (57.) (6.0) 8.0 9.53 9.0 707.3 6.0 M4 49.6 (5.6) 0. (3.0) 706.38.50.63 0.7.0 M6 67.3 (7.6) 0. (3.0) (38.) (66.7) (8.0) 8.0.0 54 707.38 9.0 M5 97.4 (.0) 0.6 (4.0) 706.44.75 3.00 0.79 5.0 M6 67.3 (7.6) 0. (3.0) (44.5) (76.) (0.0) 9.0 4.0 39 707.44.0 M5 97.4 (.0) 0.6 (4.0) 706.5.00 3.75 0.98 8.0 M8 59 (8) 0.6 (4.0) (50.8) (95.3) (5.0) 0.0 6.0 389 707.5 6.0 M6 68 (9) 0.0 (5.0) 706.57.5 5..6 3.0 M8 59 (8) 0.6 (4.0) (57.) (30) (3.0) 0.0 0.0 674 707.57 30.0 M6 68 (9) 0.0 (5.0) 706.64.5 5.9.5 38.0 M8 59 (8) 0.6 (4.0) (63.5) (50) (38.0).0 5.0 8 707.64 36.0 M8 407 (46) 0.4 (6.0) ength of supported bore. Max. compensation values are mutually exclusive. Angular Offset Deg. 3 Peak torque. Select a size where Peak exceeds the application torque x service factor. (see page 4) 3.0 5.0 5.0 7.0 7.0 7.0 7.0 7.0 7.0 7.0 7.0 Parallel Offset mm.00 (0.).007 (0.7).008 (0.) 0.0 (0.5).05 (0.38) 0.0 (0.5).04 (0.6).03 (0.8) 0.35 (0.9).037 (0.95) 0.39 (.0) Torsional Stiffness Nm/rad.8 4.0 7.0 46.0 08 5 35 459 666 98 5 3 Peak lb.in 8.85 (.0) 7.7 (.0) 30.09 (3.4) 46.9 (5.3) 88.5 (0.0) 3.8 (5.0) 94.7 (.0) 65.5 (30.0) 354 (40.0) 486.8 (55.0) 663.8 (75.0) BORE SIZES 6BEAM COUPINGS, NONREIEVED s indicated in parenthesis are metric. ØB, ØB +0.00/ 0 (+0.03mm/0mm) () (3) /8 (4) 3/6 (5) (6) /4 (8) 3/8 (0) () / (4) 5/8 (6) (8) (9) 3/4 (0) (4) (5) (8) (30) /4 (3) 9 3 6 9 5 3 38 44 5 57 64 Bore ref. 4 6 8 9 0 4 8 3 3 35 36 38 4 4 45 46 47 48 5 5 53 54 56 57 58 34 Huco 888896637 +44 (0) 99 50900... P793HD /7 B only B & B

MultiBeam Aluminium MultiHelix Flexible 6 Beam s Set Hubs Clamp Hubs Materials & Finishes s: Fasteners: Aluminium 68 or better Alloy steel, black oiled Temperature Range Ø D Ø B Ø B Ø D Ø B Ø B 40ºF to +84ºF (40 C to +0 C) 6BEAM COUPINGS: DIMENSIONS & ORDER CODES Type & Relieved 09 3 6 9 5 3 38 44 5 57 64 Set Style Clamp Type COUPING REF Min B Bore Diameters Min B Max B & B Mass kgx03 Set Cap Fasteners lbs. Wrench 76.09 0.4 0.77 0. M.5 4.87 (0.55) 0.5 (.3) (9.5) (9.6) (5.3).0 3.0 4.76.5 77.09 M.6.60 (0.9) 0.59 (.50 76.3 0.5.09 0.6 M3 8.0 (0.90) 0.59 (.5) (.7) (.9) (6.5) 3.0 4.0 6.35 5.0 77.3 M 5.84 (0.66) 0.59 (.5) 76.6 0.63.00 0.6 M4 9.5 (.) 0.59 (.5) (5.9) (5.4) (6.5) 3.0 4.0 8 8.6 77.6 M.5.5 (.3).079 (.0) 76.9 0.75.04 0.6 M4 9.5 (.).098 (.5) (9.) (6.5) (6.5) 4.76 5.0 0.4 77.9 M.5.5 (.3).079 (.0) 76.5.00.50 0.43 M5 40.7 (4.6).098 (.5) (5.4) (38.) (.0) 5.0 6.0.7 35.0 77.5 M3. (.4).098 (.5) 76.3.5.5 0.63 9.0 M6 67.3 (7.6) 0. (3.0) (3.8) (57.) (6.0) 8.0 9.53 84.0 77.3 6.0 M4 49.6 (5.6) 0. (3.0) 76.38.50.63 0.7.0 M6 67.3 (7.6) 0. (3.0) (38.) (66.7) (8.0) 8.0.0 40 77.38 9.0 M5 97.4 (.0) 0.6 (4.0) 76.44.75 3.00 0.79 5.0 M6 67.3 (7.6) 0. (3.0) (44.5) (76.) (0.0) 9.0 4.0 8 77.44.0 M5 97.4 (.0) 0.6 (4.0) 76.5.00 3.75 0.98 8.0 M8 59 (8) 0.6 (4.0) (50.8) (95.3) (5.0) 0.0 6.0 348 77.5 6.0 M6 68 (9) 0.0 (5.0) 76.57.5 5..6 3.0 M8 59 (8) 0.6 (4.0) (57.) (30) (3.0) 0.0 0.0 593 77.57 30.0 M6 68 (9) 0.0 (5.0) 76.64.5 5.9.5 38.0 M8 59 (8) 0.6 (4.0) (63.5) (50) (38.0).0 5.0 98 77.64 36.0 M8 407 (46) 0.4 (6.0) ength of supported bore. Max. compensation values are mutually exclusive. Angular Offset Deg. 3 Peak torque. Select a size where Peak exceeds the application torque x service factor. (see page 4) 4 3.0 5.0 5.0 7.0 7.0 7.0 7.0 7.0 7.0 7.0 Parallel Offset mm.00 (0.).007 (0.7).008 (0.) 0.0 (0.5).05 (0.38) 0.0 (0.5).04 (0.6).03 (0.8) 0.35 (0.9).037 (0.95) Torsional Stiffness values based on maximum bores, for smaller bore combinations the values are nearer the nonrelieved type. 7.0 0.39 (.0) 4 Torsional Stiffness Nm/rad 0.9 7.0 3.5 3.0 54 57 9 333 459 560 3 Peak lb.in 5.3 (0.6).5 (.3) 7.7 (.0) 6.6 (3.0) 44.5 (5.0) 6.96 (7.0) 97.36 (.0) 3.7 (5.0) 77.0 (0.0) 47.8 (8.0) 336.6 (38.0) BORE SIZES 6BEAM COUPINGS, REIEVED s indicated in parenthesis are metric. ØB, ØB +0.00/ 0 (+0.03mm/0mm) () (3) /8 (4) 3/6 (5) (6) /4 (8) 3/8 (0) () / (4) 5/8 (6) (8) (9) 3/4 (0) (4) (5) (8) (30) /4 (3) 9 3 6 9 5 3 38 44 5 57 64 Bore ref. 4 6 8 9 0 4 8 3 3 35 36 38 4 4 45 46 47 48 5 5 53 54 56 57 58 B only B & B P793HD /7... Huco 8888896637 +44 (0) 99 50900 35

MultiBeam Acetal MultiHelix Flexible 3 Beam s Set Hubs Clamp Hubs Materials & Finishes s: Acetal (natural) Fasteners: Stainless Steel Temperature Range Ø D Ø B Ø B Ø D Ø B Ø B 0ºF to +40ºF (0 C to +60 C) 3BEAM COUPINGS: DIMENSIONS & ORDER CODES Type & Relieved 3 6 9 5 3 Set Style Clamp Type COUPING REF Min B Bore Diameters Min B Max B & B Mass kgx03 Set Cap Fasteners lbs. Wrench 78.3 0.50.750 0.4 M3.83 (0.3).059 (.5) (.7) (9.) (6.0) 3.0 4.0 5.0.9 79.3 M.04 (0.3).059 (.5) 78.6 0.63 0.80 0.6 M4 9.9 (.05).079 (.0) (5.9) (0.3) (6.5) 3.0 4.0 6.0 4.9 79.6 M.5 4.5 (0.5).079 (.0) 78.9 0.75 0.90 0.6 M4 9.9 (.05).079 (.0) (9.) (.9) (6.5) 4.0 4.76 8.0 7.5 79.9 M.5 4.5 (0.5).079 (.0) 78.5.0.5 0.35 M5 8.6 (.0).098 (.5) (5.4) (3.8) (9.0) 5.0 6.0 0.0 9.0 79.5 M3 8.0 (0.90).098 (.5) 78.3.5.75 0.47 M6 33 (3.75) 0. (3.0) (3.8) (44.5) (.0) 6.0 8.0 4.0 44.0 79.3 M4 8.9 (.4) 0. (3.0) ength of supported bore. Max. compensation values are mutually exclusive. Angular Offset Deg. 3 Peak torque. Select a size where Peak exceeds the application torque x service factor. (see page 4) 5.0 5.0 5.0 5.0 5.0 Parallel Offset mm.005 (.7).005 (.7).005 (.7).005 (.7).005 (.7) Torsional Stiffness Nm/rad.9.7 4.0 3 Peak lb.in. (0.4) 3.0 (0.35) 5.66 (0.64).39 (.40).3 (.50) BORE SIZES 3BEAM COUPINGS s indicated in parenthesis are metric. ØB, ØB +0.00/ 0 (+0.03mm/0mm) () () (3) /8 (4) 3/6 (5) (6) /4 (8) 3/8 (0) () 3 6 9 5 3 Bore ref. 8 4 6 8 9 0 4 8 3 3 35 B only B & B 36 Huco 888896637 +44 (0) 99 50900... P793HD /7

MultiBeam Acetal MultiHelix Flexible 6 Beam s NonRelieved Set Hubs Clamp Hubs Materials & Finishes s: Acetal (natural) Fasteners: Stainless Steel Temperature Range Ø D Ø B Ø B Ø D Ø B Ø B 0ºF to +40ºF (40 C to +60 C) 6BEAM COUPINGS: DIMENSIONS & ORDER CODES Type & NonRelieved 3 6 9 5 3 Set Style Clamp Type COUPING REF Min B Bore Diameters Min B Max B & B Mass kgx03 Set Cap Fasteners lbs. ) Wrench 70.3 0.50 0.9 0.6 M3.83 (0.3).059 (.5) (.7) (.9) (6.5) 3.0 5.0 6.0 3. 7.3 M.04 (0.3).059 (.5) 70.6 0.63.00 0.6 M4 9.9 (.05).079 (.0) (5.9) (5.4) (6.5) 3.0 6.0 8.0 5.4 7.6 M.5 4.5 (0.5).079 (.0) 70.9 0.75.04 0.6 M4 9.9 (.05).079 (.0) (9.) (6.5) (6.5) 4.0 6.35 9.53 8.0 7.9 M.5 4.5 (0.5).079 (.0) 70.5.0.5 0.43 M5 8.6 (.0).098 (.5) (5.4) (38.) (.0) 5.0 8.0.0.0 7.5 M3 8.0 (0.90).098 (.5) 70.3.5.5 0.63 M6 33 (3.75) 0. (3.0) (3.8) (57.) (6.0) 6.0 0.0 6.0 5.0 7.3 M4 8.9 (.4) 0. (3.0) ength of supported bore. Max. compensation values are mutually exclusive. Angular Offset Deg. 3 Peak torque. Select a size where Peak exceeds the application torque x service factor. (see page 4) 4 5.0 5.0 7.0 7.0 Parallel Offset mm.007 (0.7).008 (0.) 0.0 (0.5) 0.5 (0.38) Torsional Stiffness values based on maximum bores, for smaller bore combinations the values are nearer the nonrelieved type. 7.0 0.0 (0.5) 4 Torsional Stiffness Nm/rad.3.8.7 8.0 4.0 3 Peak lb.in 4.5 (0.5) 8.05 (0.9).5 (.3).3 (.5) 35.4 (4.0) BORE SIZES 6BEAM COUPINGS, NONREIEVED s indicated in parenthesis are metric. ØB, ØB +0.00/ 0 (+0.03mm/0mm) () (3) /8 (4) 3/6 (5) (6) /4 (8) 3/8 (0) () / (4) 5/8 (6) 3 6 9 5 3 Bore ref. 4 6 8 9 0 4 8 3 3 35 36 38 4 4 B only B & B P793HD /7... Huco 8888896637 +44 (0) 99 50900 37

MultiBeam Acetal MultiHelix Flexible 6 Beam s Set Hubs Clamp Hubs Materials & Finishes s: Acetal (natural) Fasteners: Stainless Steel Temperature Range Ø D Ø B Ø B Ø D Ø B Ø B 0ºF to +40ºF (0 C to +60 C) 6BEAM COUPINGS: DIMENSIONS & ORDER CODES Type & Relieved 3 6 9 5 3 Set Style Clamp Type COUPING REF Min B Bore Diameters Min B Max B & B Mass kgx03 Set Cap Fasteners lbs. Wrench 730.3 0.50 0.9 0.6 M3.83 (0.3).059 (.5) (.7) (.9) (6.5) 3.0 4.0 5.0 3. 73.3 M.04 (0.3).059 (.5) 730.6 0.63.00 0.6 M4 9.9 (.05).079 (.0) (5.9) (5.4) (6.5) 3.0 4.0 6.35 5.4 73.6 M.5 4.5 (0.5).079 (.0) 730.9 0.75.04 0.6 M4 9.9 (.05).079 (.0) (9.) (6.5) (6.5) 4.0 5.0 8.0 7.8 73.9 M.5 4.5 (0.5).079 (.0) 730.5.0.5 0.43 M5 8.6 (.0).098 (.5) (5.4) (38.) (.0) 5.0 6.0 0.0.0 73.5 M3 8.0 (0.90).098 (.5) 730.3.5.5.5 M6 33 (3.75) 0. (3.0) (3.8) (3.8) (57.) 8.0 9.53.7 5.0 73.3 M4 8.9 (.4) 0. (3.0) ength of supported bore. Max. compensation values are mutually exclusive. Angular Offset Deg. 3 Peak torque. Select a size where Peak exceeds the application torque x service factor. (see page 4) 5.0 5.0 7.0 7.0 7.0 Parallel Offset mm.007 (0.7).008 (0.) 0.0 (0.5).05 (0.38) 0.0 (0.5) Torsional Stiffness Nm/rad 0.5 0.7.0 3. 5.6 3 Peak lb.in.83 (.3) 5.40 (.6) 7.70 (.87) 4.80 (.67). (.4) BORE SIZES 6BEAM COUPINGS, REIEVED B only B & B s indicated in parenthesis are metric. ØB, ØB +0.00/ 0 (+0.03mm/0mm) () (3) /8 (4) 3/6 (5) (6) /4 (8) 3/8 (0) () / 3 6 9 5 3 Bore ref. 4 6 8 9 0 4 8 3 3 35 36 38 Huco 888896637 +44 (0) 99 50900... P793HD /7

Step Beam Step Beam s Nylon Materials & Finishes s: Nylon type engineering polymer Fasteners: Stainless Steel Temperature Range 0ºF to +30ºF (0 C to +50 C) Set Hubs Clamp Hubs DIMENSIONS & ORDER CODES Set Style Order Code Clamp Style O.D. O/A ength Max Shaft Depth Dimensions Min Bore Max Bore Mass kg x 03 Fasteners Set Cap lb. (Ncm) A/F 5 636.5 637.5 0.98 (5).4 (36) 0.39 (0.0) 6.7 7.4 M4 M3 0.09 (.05) 0.08 (0.90).079 (.0).098 (.5) PERFORMANCE Peak Torsional Max misalignment / displacement Stiffness (Nm/rad) Angular deg Radial Axial 5 0.98 (.5) 8.0 5.0 (0.3).0 (0.3) AVAIABE BORES s indicated in parenthesis are metric. (6) /4 5/6 (8) 3/8 (0) () / 5 Bore Ref 4 7 8 3 3 35 36 P793HD /7... Huco 8888896637 +44 (0) 99 50900 39

SBeam Single Helix Beam s Stainless Steel Set Hubs Clamp Hubs DIMENSIONS & ORDER CODES Set Style Clamp Style Order Code O.D. O/A ength Bore Depth Dimensions Min B Min B Max B & B Mass kg x 03 Set Cap Fasteners lb. A/F 6 80.6 8.6 0.63 (5.9) 0.79 (0) 0.87 () 0.5 (6.0) 0.6 (6.5) 3 4 6.35 5.6 6.0 M4 M.5 9.9 (.05) 6.0 (0.68) 0.08 (.0) 0.08 (.0) 9 80.9 8.9 0.75 (9.) 0.79 (0). (8) 0.5 (6.0) 0.3 (8.0) 4 4.76 8 35.8 47.7 M4 M.5 9.9 (.05) 6.0 (0.68) 0.08 (.0) 0.08 (.0) 5 80.5 8.5.0 (5.4) 0.94 (4).8 (30) 0.3 (7.5) 0.39 (0.0) 5 6 0 78 9 M5 M3 8.59 (.0) 0.6 (.0) 0. (.5) 0. (.5) 3 80.3 8.3.5 (3.8).8 (30).5 (38) 0.39 (0.0) 0.47 (.0) 6 8 6 5 86 M6 M4 33.9 (3.75) 5. (.85) 0. (3.0) 0. (3.0) 38 80.38 8.38.5 (38.).97 (50).97 (50) 0.63 (6.0) 0.63 (6.0) 8 9 365 350 M6 M5 33.9 (3.75) 5.78 (5.85) 0. (3.0) 0.6 (4.0) 50 80.50 8.50.0 (50.8).3 (54).3 (54) 0.7 (8.0) 0.7 (8.0) 0 6 6 680 660 M8 M6 79.66 (9.00) 86.9 (9.75) 0.6 (4.0) 0. (5.0) PERFORMANCE Peak Max misalignment compensation lb. Angular deg Radial Axial Bore Nominal stiffness at std. bore size Torsional Nm/rad Materials & Finishes s: Stainless Steel 303 S3 Fasteners: Stainless Steel 6 0.6 (.) 5 0.0 (0.5) 0.0 (0.5) 5 6 9 0.36 (.3) 5 0.0 (0.5) 0.0 (0.5) 6 33 5 38.06 (4.3) 5 0.0 (0.5) 0.0 (0.5) 0 45 3 69.04 (7.8) 5 0.0 (0.5) 0.0 (0.5) 84 38 77 (0) 5 0.0 (0.5) 0.0 (0.5) 6 95 50 65 (30) 5 0.0 (0.5) 0.0 (0.5) 0 30 Temperature Range 40ºF to +84ºF (40 C to +40 C) AVAIABE BORES ØB, ØB +0.00/ 0 (+0.03mm/0mm) (3) /8 (4) 3/6 (5) (6) /4 5/6 (8) (9) 3/8 (0) () / (4) (5) 5/8 (6) 3/4 (0) (5) 6 9 5 3 38 50 s indicated in parenthesis are metric. Bore Ref 4 6 8 9 0 4 7 8 30 3 3 35 36 38 40 4 4 47 48 5 53 B only B & B 40 Huco 888896637 +44 (0) 99 50900... P793HD /7

SBeam Single Helix Beam s Aluminium Set Hubs Clamp Hubs DIMENSIONS & ORDER CODES Set Style Clamp Style Order Code O.D. O/A ength Bore Depth Dimensions Min B Min B Max B & B Mass kg x 03 Fasteners Set Cap lb. A/F 6 86.6 87.6 0.63 (5.9) 0.79 (0) 0.87 () 0.5 (6.0) 0.6 (6.5) 3 4 6.35 8.8 9.8 M4 M.5 0.09 (.7).68 (.3) 0.08 (.0) 0.08 (.0) 9 86.9 87.9 0.75 (9.) 0.79 (0). (8) 0.5 (6.0) 0.3 (8.0) 4 4.76 8 3. 7.3 M4 M.5 0.09 (.7).68 (.3) 0.08 (.0) 0.08 (.0) 5 86.5 87.5.0 (5.4) 0.94 (4).8 (30) 0.3 (7.5) 0.39 (0.0) 5 6 0 8 33 M5 M3 40.89 (4.6).5 (.43) 0. (.5) 0. (.5) 3 86.3 87.3.5 (3.8).8 (30).5 (38) 0.39 (0.0) 0.47 (.0) 6 8 6 55 67 M6 M4 67.35 (.6) 50.09 (5.66) 0. (3.0) 0. (3.0) 38 86.38 87.38.5 (38.).97 (50).97 (50) 0.63 (6.0) 0.63 (6.0) 8 9 7 30 M6 M5 67.35 (7.6) 00.9 (.4) 0. (3.0) 0.6 (4.0) 50 86.50 87.50.0 (50.8).3 (54).3 (54) 0.7 (8.0) 0.7 (8.0) 0 6 6 4 37 M8 M6 64.6 (8.36) 7. (9.34) 0.6 (4.0) 0. (5.0) PERFORMANCE Peak Max misalignment compensation lb Angular deg Radial Axial Bore Nominal stiffness at std. bore size Torsional Nm/rad Materials & Finishes s: Aluminium 68 or better Fasteners: Alloy steel, black oiled 6 5.3 (0.6) 5 0.0 (0.5) 0.0 (0.5) 5 6 9 9.74 (.) 5 0.0 (0.5) 0.0 (0.5) 6 5 9.47 (.) 5 0.0 (0.5) 0.0.0 (0.5) 0 7 3 36.9 (4.) 5 0.0 (0.5) 0.0 (0.5) 3 38 88.5 (0) 5 0.0 (0.5) 0.0 (0.5) 6 70 50 3.76 (5) 5 0.0 (0.5) 0.0 (0.5) 0 9 Temperature Range 40ºF to +48ºF (40 C to +0 C) AVAIABE BORES ØB, ØB +0.00/ 0 (+0.03mm/0mm) s indicated in parenthesis are metric. (3) /8 (4) 3/6 (5) (6) /4 5/6 (8) (9) 3/8 (0) () / (4) (5) 5/8 (6) 3/4 (0) (5) 6 9 5 3 38 50 Bore Ref 4 6 8 9 0 4 7 8 30 3 3 35 36 38 40 4 4 47 48 5 53 B only B & B P793HD /7... Huco 8888896637 +44 (0) 99 50900 4

Notes 4 Huco 888896637 +44 (0) 99 50900... P793HD /7

Drive s Flexible Double oop Flexible Jaw (Spider) General purpose couplings for light power drives. P793HD /7... Huco 8888896637 +44 (0) 99 50900 43

FlexG Flexible Jaw Huco Flexible Jaw s utilize the flexibility and resilience of a polyurethane element between aluminium hubs. This combination allows high torque to be transmitted with little or no backlash, even where there is significant angular and/or parallel misalignment. Zero / ow backlash Rated up to 7Nm Choice of 3 polyurethane elements Set Hubs Thro Clamp Hubs Pilot Hubs Useradaptable for special needs e.g. fitting within tubes. Blank hubs are supplied centered with no provision for fastening. External dimensions identical with blind hubs. Except size 40 which has 6.35mm pilot hole. Elements Polyurethane elements are available with three hardness levels; hard, standard and soft which exhibit different operating characteristics. Other features of polyurethane are: Resistance to oils, grease and many solvents Good atmospheric and chemical resistance Excellent shock and vibration damping 44 Huco 888896637 +44 (0) 99 50900... P793HD /7

DIMENSIONS & ORDER CODES 4 0 30 40 Set Style Clamping Style HUB REF Pilot Hub 80.4 803.4 800.4 80.0 803.0 800.0 80.30 803.30 800.30 80.40 803.40 800.40 0.55 (4.0) 0.79 (0.0).8 (30.0).57 (40.0) 0.87 (.0).8 (30.0).38 (35.0).60 (66.0) Fasteners Moment ØB max of inertia Mass Wrench kgm kg lb. x 08 x 03 6 3 3 0.8 (7.0) 0.39 (0.0) 0.43 (.0) 0.98 (5.0) 0.3 (8.0) 0.39 (0.0) 0.5 (3.0) 0.63 (6.0) 0.5 (6.35) 0.35 (9.0) 0.55 (4.0) 0.63 (6.0) M3 0.94.5 M.5.3.5 M3 0.94.5 M3.43.5 M4.7.0 M3.43.5 M5 4.6.5 M4 5.66 3.0 FlexG Flexible Jaw Soft (Blue) Med (White) EEMENT REF Hard (Red) 8.4 7.0 804.4 805.4 806.4 06.0 7.0 804.0 805.0 806.0 606.0 5.0 804.30 805.30 806.30 430.0 08.0 804.40 805.40 806.40 PERFORMANCE (AT 0ºC) Spider Rigidity Duro 7 Misalignment Angular deg Radial Speed R.P.M max Rate deg/nm Torsional 5 Stiffness Nm/rad Backlash Free lb. Nominal lb. 4 Max lb. 3 Maximum permissable hub penetration Maximum recommended tightening torque Values apply to complete couplings with max. bores 4 0 80 Blue 9 White 98 Red 80 Blue 9 White 98 Red.003 (0.0).006 (0.5) 40000 8000 6.7 3.9.9 3.37.05. 8.5 4.7 5.0 7 8 47.95 (0.) 3.98 (0.45) 5.93 (0.67) 9.9 (.) 6.8 (.90) 5.9 (.80) 5.9 (.93) 4.9 (4.85).9 (.34) 9.8 (.4) 33.6 (3.80) 3.9 (3.60) 53. (6.00) 85.9 (9.70) 4 5 6 7 Nominal. Select a size where Nominal exceeds application torque x service factor (see page 4) Values apply at 50% nominal torque, measured shaft to shaft with largest standard bores Hubs can be provided with keyways or D bores Spider Durometer is shore A hardness 30 80 Blue 9 White 98 Red.008 (0.0) 9000.4 0.40 0.5 7 43 8 8.85 (.00) 35.0 (3.95) 69.9 (7.90) 64.9 (7.33) 9. (4.60) 09.8 (.4)0 9.5 (4.80 40 80 Blue 9 White 98 Red 0.38 4000 0.34 0.7 0.0 70 344 573. (.40) 4.9 (4.85) 85.9 (9.70) 86.7 (9.80) 73.5 (9.60) 47.8 (6.70) 95.6 (33.40) STANDARD BORES ØB, ØB +0.00/ 0 (+0.03mm/0mm) s indicated in parenthesis are metric. (3) /8 (4) 3/6 (5) (6) /4 (8) 3/8 (0) () / (4) (5) 5/8 (6 4 0 30 40 Bore ref. 4 6 8 9 0 4 8 3 3 35 36 38 40 4 4 Materials & Finishes Hub sizes 4 30: Al. Alloy 04 Hub size 40: Cast Aluminium M9 Membranes: Polyurethane Fastener: Alloy steel, black oiled Temperature Range 40ºF to +76ºF (40ºC to +80ºC) For short durations up to 0ºF (00ºC) Note: arger sizes available. Please ask for details. P793HD /7... Huco 8888896637 +44 (0) 99 50900 45

FlexP Double oop Flexible DIMENSIONS & ORDER CODES Steel zinc plated hubs Order Code Stainless steel hubs Max Diameter ength (+/.0 mm) Dimensions Bore length Max Bores Mass kg x 03 Fasteners lb. A/F 0 047.0 049.0.06 (7).06 (7) 0.3 (7.9) 9.53 5 M3 8.3 (0.94).036 (0.3) 0.7 (.5) 0 047.0 049.0.89 (48).89 (48) 0.50 (.7).7 9 M4 0.6 (.7) 0.3 (.0) 0.3 (.0) 30 047.30 049.30.3 (54).7 (55) 0.63 (6.0) 6.0 4 M5 0.5 (4.6) 0.4 (.) 0.8 (.5) 40 047.40 049.40.0 (56).0 (56) 0.63 (6.0) 6.0 36 M6 0.86 (7.6) 0.43 (3.75) 0.34 (3.0) PERFORMANCE Max lb. Max lb. max misalignment/displacement Angular deg Radial Axial (+/ mm) 0 4.43 (0.5) 7.08 (0.8) 0 0.0 (.6) 0.8 (4.5) 0 5.9 (.8) 6.6 (3) 5 0.3 (3.) 0.30 (7.5) 30 44.3 (5) 70.8 (8) 5 0.3 (3.) 0.33 (8.5) 40 88.5 (0) 59.3 (8) 5 0.3 (3.) 0.43 () = torque at maximum displacement = torque at deg. angular, mm axial and 0.5mm radial displacement Materials & Finishes Hubs: Flexing Element: Fastener: Steel 30M07 pb Zn plated + clear passivate or Stainless Steel 303 S3 natural finish Hytrel Temperature Range Steel Hub: Alloy steel, black oiled 40ºF to +ºF (40 C to +00 C) Maximum Rotational Speed 3000 rev/min Stainless Steel Hub: stainless steel STANDARD BORES* * s with dissimilar bores are nonstandard ØB, ØB +0.00/ 0 (+0.05mm/0mm) s indicated in parenthesis are metric. (3) /8 (4) 3/6 (5) (6) /4 5/6 (8) 3/8 (0) () / (4) (5) 5/8 (6) 0 0 30 40 Bore Ref 4 6 8 9 0 4 7 8 3 3 35 36 38 40 4 4 46 Huco 888896637 +44 (0) 99 50900... P793HD /7

Plastic Universal Joints and Teleshafts Backlashfree up to 0 8 turns ow mass ow inertia Corrosion resistant Electrically isolating No maintenance HucoPol is a range of light duty, backlashfree universal joints and teleshafts manufactured of acetal and nonferrous metals. They are suitable for intermittent applications where low mass, corrosion resistance and electrical isolation are desirable. HucoPol joints and teleshafts have only a fraction of the torque capability of steel joints and are not intended to substitute for these in the normal way. HucoPols are used in business machines, food processing plants, laboratory equipment and electromedical apparatus among others. Alternative polymers are available for high temperature operation. P793HD /7... Huco 8888896637 +44 (0) 99 50900 47

HucoPol Plastic Universal Joints ØB ØB ØB ØB 3 Type 05 3 Type 03 SINGE JOINTS DIMENSIONS & ORDER CODES Order Code OD Dimensions 3 B, B Max Moment of inertia kgm x 08 Fasteners 06 03.06 0.8 (7.).07 (7.) 0.37 (9.3) 0.34 (8.6) 0.3 (3.8). 3. M3 8.3 (0.94) 0.06 (.5) 09 03.09 0.44 (.).48 (37.6) 0.5 (3.) 0.45 (.4) 0.0 (5.0) 3.5 9.3 M3 8.3 (0.94) 0.06 (.5) 3 03.3 0.56 (4.3).8 (46.) 0.6 (5.7) 0.58 (4.8) 0.5 (6.35) 44.6 7.7 M3 8.3 (0.94) 0.06 (.5) 6 03.6 0.69 (7.5).66 (67.6) 0.88 (.3) 0.9 (3.0) 0.39 (0.0) 36 35 M4 0. (.7) 0.08 (.0) Mass kg x 03 0 05.0 0.90 (3.0).44 (6.0) 0.3 (8.0) 0.67 (7.0).0 (8.0) 0.50 (.7) 47 5.7 5 05.5. (8.5).9 (74.0) 0.39 (0.0) 0.79 (0.0).34 (34.0) 0.55 (4) 463 56 3 05.3.44 (36.5) 3.39 (86.0) 0.39 (0.0) 0.83 (.0).73 (44.0) 0.79 (0) 339 03 lb. A/F SINGE JOINTS PERFORMANCE at 68ºF (0ºC) Peak lb. Static Break lb. Torsional Rate deg/nm Torsional Stiffness Nm/Rad Max angular compensation @ 000 rev/min Max axial loading N 06 0.97 (0.) 3.98 (0.45) 9.7.9 45 8 09 3.9 (0.36) 6.8 (.9) 6.8 8.4 45 38 3 7.5 (0.85) 39.8 (4.5) 3. 8 45 67 6 4. (.6) 60. (6.8).7 34 45 98 0 4.8 (.8) 5 (7) 0.94 6 40 38 5 49.6 (5.6) 30 (34) 0.5 40 3 94.7 (0.7) 637 (7) 0.5 9 40 334 FOR STANDARD BORES SEE FACING PAGE Materials & Finishes Bodies: Acetal Crosspieces: Brass BS CZ/ (03, ) Bore Inserts: Brass BS CZ/ (03, ) Al. Alloy 04A T6 (05) Fasteners: Alloy steel, black oiled Operating Temperature Range 0ºF to +40ºF ( 0ºC to +60ºC) Maximum Rotational Speed 000 rev/min 48 Huco 888896637 +44 (0) 99 50900... P793HD /7

HucoPol Plastic Universal Joints 4 ØB ØB 3 Type DOUBE JOINTS DIMENSIONS & ORDER CODES Order Code OD Dimensions 3 4 B, B Max Moment of inertia kgm x 08 Mass kg x 03 Fasteners 06.06 0.8 (7.).39 (35.3) 0.37 (9.3) 0.66 (6.7) 8. 3.8.3 3.5 M3 8.3 (0.94) 0.06 (.5) 09.09 0.44 (.).00 (50.8) 0.5 (3.) 0.97 (4.6) 3. 5.0 5.3. M3 8.3 (0.94) 0.06 (.5) 3.3 0.56 (4.3).44 (6.) 0.6 (5.7). (30.7) 5.9 6.35 50.4.6 M3 8.3 (0.94) 0.06 (.5) 6.6 0.69 (7.5) 3.53 (89.8) 0.88 (.3).78 (45.). 0.0 78.0 4.4 M4 0. (.7) 0.08 (.0) lb. A/F DOUBE JOINTS PERFORMANCE at 68ºF (0ºC) Peak lb. Static Break lb. Torsional Rate deg/nm Torsional Stiffness Nm/Rad Max angular compensation @ 000 rev/min Max radial compensation 06 0.7 (0.08) 3.00 (0.34) 8.9 0.7 90 49.6 (5.6) 09.4 (0.6) 6.8 (.9) 3.3 4.3 90 80.5 (9.) 3 5. (0.59) 30. (3.4) 8. 7. 90 96.5 (0.9) 6.5 (.3) 60. (6.8) 4.5.6 90 37 (5.5) STANDARD BORES Bore tolerences 03, = +0.00/ 0 (+0.03mm/0mm) (3) /8 (4) 3/6 (5) (6) /4 (8) 3/8 (0) () / (4) 5/8 (6) (8) (9) 3/4 (0) 06 09 3 6 0 5 3 Bore Ref 4 6 8 9 0 4 8 3 3 35 36 38 4 4 45 46 47 48 P793HD /7... Huco 8888896637 +44 (0) 99 50900 49

HucoPol Plastic Universal Joints Constant velocity The velocity ratio of single universal joints is not constant when the working angle is greater than zero. Their geometry gives rise to sinusoidal fluctuations at the output that increase with the working angle and which vary between: β note orientation β note orientation β ω cos β and ω sec β where ω = angular velocity and β = operating angle For example, when the operating angle is 5, the maximum error is ±0.4%; at 7 it is ±0.8%, and at 0 it is ±.5%. A motor shaft turning at a constant 000 rpm, driving through a single universal joint set at an operating angle of 5, produces an output that fluctuates between 996 rpm and 004 rpm twice each revolution. The fluctuations are cancelled out when using a double joint or two single joints connected back to back. To maintain constant velocity ratio, ensure that: a) The orientation of two single joints is correct; the inboard forks should align as in double joints. b) The working angle of both joints, or both halves of a double joint, is the same. β ADJUSTED TORQUE Peak torque values apply when the working angle is zero. Adjusted torque takes account of dynamic loading at the bearings. To find adjusted torque, determine application speed, torque and operating angle, Then: a) multiply speed x working angle b) subtract the result from 0000 c) divide the answer into 0000 d) apply the result to the application torque. eg. speed = 400 rpm Accordingly: application torque = 0.Nm working angle = 0 a) 400 rpm x 0 = 8000 b) 0000 8000 = 000 c) 0000 / 000 = 5 d) 5 x 0.Nm = 0.5Nm Select a joint where Peak exceeds 0.5Nm, ie., size 3 or larger. Note: To remain within the capacity of the joint, the result of speed x working angle must be less than 0000. 50 Huco 888896637 +44 (0) 99 50900... P793HD /7

Huco Teleshafts Plastic Universal Joints Brass Cross Pieces and Tubes Teleshafts are delivered with nose bush parked here min / max * Nose bush optional. Bond in place after cutting tube to length S ØB ØB S End A (inner tube) Refs. 8 Joints sleeved with headed brass inserts fitted screws per end min / max End B (outer tube) S ØB ØB S Refs. 30 Joints sleeved with metal inserts. Attach to shafts by crosspinning or bonding Typical DIMENSIONS & ORDER CODES Teleshaft size 09 3 6 0 5 3 STANDARD BORES Teleshaft size 09 3 6 0 5 3 Bore ref. Corresponding bore adaptor Teleshaft options Standard tubes selfcolour brass (mm ±.0) Stroke ØB, ØB max teleshaft REF min max S 8.09.40.43 (.) 8.3.300 8.6.450 30.0.464 30.5.500 30.3.564.56 (4.3).69 (7.5).9 (3.0). (8.5).44 (36.5) 9.45 (40) 5.3 (389) 5.87 (49).8 (300) 7.7 (450) 8.3 (464) 9.7 (500). (564) 9.0 (484) 8.7 (730) 9.3 (745) 30.9 (784) 34. (868) 7.4 (84).0 (80).06 (8).8 (84).97 (304).5 (3.).6 (5.7).88 (.3).67 (7.0).79 (0.0).83 (.0) ØB, ØB +0.00/ 0 (+0.03mm/0mm) /8 (4) 3/6 (5) (6) /4 (8) 3/8 (0) () / 5/8 (6) 3/4 (0) 6 8 9 0 4 8 3 3 35 36 4 4 47 48 5 53 55 57 59 60 6 Diameters for which a bore adaptor is shown can be adapted to smaller shaft sizes. See page 58 for details. Mass Corresponding joints. For dimensions see A range of standard telescopes is available which can be shortened to achieve an infinite number of length/stroke requirements. The lengths min shown in the table above are the longest of the standard range in each size. Specific lengths are produced by cutting an equal amount from both ends of the nearest standard size. See next page for recommended procedure. Custom Teleshaft assemblies can be factory made subject to minimum order quantities. kg x 03 * The nose bush eliminates any torsional free play that may be apparent in the tubes due to working clearances. Full details of the standard range and product order codes are available on request. Please ask for a Huco Teleshaft data sheet. 5 6.35 0.70 4 0 36 58 68 4 457 87 03.09 03.3 03.6 05.0 05.5 05.3 s indicated in parenthesis are metric. 3 Max shaft penetration Values apply with max bores. P793HD /7... Huco 8888896637 +44 (0) 99 50900 5

Huco Teleshafts Plastic Universal Joints Brass Cross Pieces and Tubes Extensible drive shafts (teleshafts), are useful when the distance between actuator and load varies during operation, or needs to accommodate component variances, or when a quick disconnect facility is needed in the drive line. Huco teleshafts are in keeping with the light duty capabilities of plastics universal joints and employ precision drawn square brass tubes as the telescoping medium. These can easily be cut by the user to provide an extensible drive shaft with customised dimensions. 8 Inner tube Disengage the teleshaft, remove the nose bush parked on the inner tube and keep it in case you need to use it later. Then lay the halves of the teleshaft side by side. Slide one half alongside the other so that overall length min matches the intended length of the teleshaft when fully retracted. With a felt tip pen, draw a line across the outer tube at the point where this is level with the inboard end of the universal joint. If you are sure that the teleshaft will satisfactorily extend the required amount, cut the tube at the line. Mark the inner tube in the same way, then add an amount equivalent to dimension 3 for your teleshaft size and draw a second line. Cut the tube at this second line. min There are ways to arrive at a customized teleshaft: empirically (shown below), or with tables that provide all necessary data on stroke and tube lengths for teleshafts with and without nose bushes up to 50mm retracted length. Empirical method (based on the retracted length). Outer tube 3 3 8 Now reengage the tubes, taking care to orientate them correctly so that the inboard forks of the joints are in the same plane, and retract the teleshaft. The overall length should be as intended, and both tubes should bottom out simultaneously. If required, the nose bush can now be fitted by bonding it to the outer tube with an instant adhesive, (factory fitted bushes are retained by a barbing technique). The bush will add an amount equivalent to dimension 8 to the retracted length. Cutting this amount from the outer tube will reinstate the intended retracted length. The purpose of the nose bush is to eliminate any torsional free play that may be apparent in the tubes due to working clearances. 09 3 6 0 5 3 0.34 (8.6) 0.4 (0.4) 0.60 (5.) 0.67 (7.0) 0.79 (0.0) 0.83 (.0) 0.3 (3.) 0.7 (4.3) 0.4 (6.) 0.3 (8.) 0.4 (0.3) 0.7 (8.0) How to order customized teleshafts Please specify your teleshaft by completing the questionnaire. Teleshaft size Teleshaft ref. 09 3 6 0 5 3 8 30 min Bore diameter End A... Bore diameter End B... End A End B Fitted nose bush (end B only) Speed of rotation rpm max Please specify: min... and/or End A S End B max... and/or Stroke S... If mo re than one parameter is specified, which one is critical?... Please quote... pcs Projected annual qtys... pcs 5 Huco 888896637 +44 (0) 99 50900... P793HD /7

Adjustable Friction Clutches Huco VariTork are rotary friction devices with adjustable drag or slip torque. Controlled slip takes place between the hub and housing whenever the load exceeds the set torque. Three sizes up to 3Nm torque capacity 4 interface styles Set screw or clamp connection Compact proportions Use as a torque limiter, tensioning, or overrun device The construction is simple and robust and comprises a series of steel clutch plates engaging a hub and a series of friction rings engaging a housing. Pressure is brought to bear on the plates and friction rings by an adjuster acting through a spring and pressure plate. The load can be connected to either the steel inner hub or the aluminium alloy housing. As a torque limiter, VariTork interrupts continuity between power source and load when this reaches a predetermined level. As a tensioning device, VariTork typically maintains tension in a filament or tape winding operation by exerting drag on the feed spool. As an overrun device, VariTork absorbs residual inertia of a motor when the load is braked or reaches a terminal stop. P793HD /7... Huco 8888896637 +44 (0) 99 50900 53

Varitork Adjustable Friction Clutches 6 Set Shaft Fixing 5 Set Shaft Fixing ØB.97.95 ØB ØB ØB ØB ØB ØB 5.0 Ref. 7 ( plate) 79 (6 plate) Basic clutch (thro bore) Ref. 73 ( plate) 8 (6 plate) Basic clutch + sleeve adaptor Ref. 77 ( plate) 85 (6 plate) Basic clutch + Oldham (set screw) coupling Ref. 67 ( plate) 69 (6 plate) Basic clutch + Oldham (clamp) coupling 5 Clamp Shaft Fixing ØB.97.95 ØB ØB ØB ØB ØB ØB 5.0 Ref. 40 ( plate) 409 (6 plate) Basic clutch (thro bore) Ref. 403 ( plate) 4 (6 plate) Basic clutch + sleeve adaptor Ref. 407 ( plate) 45 (6 plate) Basic clutch + Oldham (set screw) coupling Ref. 397 ( plate) 399 (6 plate) Basic clutch + Oldham (clamp) coupling 48 Set Shaft Fixing ØB 37.00 37.03 ØB ØB ØB ØB ØB ØB Ref. 79 Basic Clutch (thro bore) Ref. 8 Basic Clutch + sleeve adaptor Ref. 85 Basic Clutch + Oldham (set screw) coupling Ref. 69 Basic Clutch + Oldham (clamp) coupling Materials & Finishes H ousing, adjuster ring, adaptors: Hub: Clutch plates: Bearings: Fasteners: Al. Alloy 04 T6 Irridite NCP finish Steel, heat treated 5 Steel, heat treated 48 Brass Sintered bronze Alloy steel, black oiled 54 Huco 888896637 +44 (0) 99 50900... P793HD /7

DIMENSIONS & ORDER CODES Varitork Adjustable Friction Clutches Fasteners at B end Fasteners at B end Mass & Set Clamp ØB ØB Max Moment Wrench Model Hub max max drag of inertia kg Wrench lb. Hub torque kgm x 03 lb. lb.in x 08 CUTCH REF (Ncm) 3 3 6 3.6 0.63 (6.0).89 (6.0) 0. (5.0) 0.8 (7.0) 0.6 (4) M3 0.94 0.06 (.5) 0.6 (4) M3 8.3 (0.94) 0.06 (.5) 0.04 (0.5) 30 4 5 PATE 5 6PATE 48 6PATE 67.5 7.5 73.5 77.5 69.5 79.5 8.5 85.5 69.48 79.48 8.48 85.48 397.5 40.5 403.5 407.5 399.5 409.5 4.5 45.5.0 (5.8).0 (5.8).0 (5.8).0 (5.8).89 (48.0).83 (46.5).04 (6.4).4 (36.0).83 (46.5).5 (54.5).35 (34.4).73 (44.0).5 (54.5). (53.4).8 (3.4).67 (4.5). (53.4).39 (60.8).6 (40.7).98 (50.3).39 (60.8) 4.0 (0.0).56 (65.0) 3.7 (33.0) 4.0 (0.0) 0.98 (5.0) thro 0.98 (5.0) 0.98 (5.0) 3.7 (33.0) thro 3.7 (33.0) 3.7 (33.0). (3.0) thro. (3.0). (3.0). (3.0) thro.54 (39.0).54 (39.0).56 (65.0) thro.56 (65.0).56 (65.0) 0.34 (8.6) 0.35 (9.0) 0.34 (8.6) 0.34 (8.6) 0.35 (9.0) 0.34 (8.6) 0.34 (8.6) 0.35 (9.0) 0.34 (8.6) 0.34 (8.6) 0.35 (9.0) 0.34 (8.6) 0.66 (6.7) 0.63 (6.0) 0.66 (6.7) 0.3 (8) 0.3 (8) 0.3 (8) 0.3 (8) 0.63 (6) M3 M3 M3 M3 0.94.43 0.94.43 0.06 (.5) 0. (.5) 0.06 (.5) 0. (.5) M6 7.60 0. (3.0) 0.47 () 0.47 () 0.47 () 0.47 () 0.47 () 0.47 () 0.47 () 0.47 () 0.47 () 0.47 () 0.47 () 0.47 () 0.79 (0) 0.79 (0) 0.79 (0) 0.79 (0) M3 M4 M4 M3 M4 M4 M3 M4 M4 M3 M4 M4 M4 M5 M5.5 (.43) 0.09 (.7) 0.09 (.7).5 (.43) 0.09 (.7) 0.09 (.7).5 (.43) 0.09 (.7) 0.09 (.7).5 (.43) 0.09 (.7) 0.09 (.7) 50. (5.66) 40.89 (4.6) 40.89 (4.6) 0. (.5) 0.08 () 0.08 () 0. (.5) 0.08 () 0.08 () 0. (.5) 0.08 () 0.08 () 0. (.5) 0.08 () 0.08 () 0. (3) 0. (.5) 0. (.5) 4.7 (53) 4.7 (53).6 (3).6 (3) 6.5 (300) 46 4 38 45 508 37 44 5 59 3 45 56 67 38 530 590 8037 5548 735 8037 58 37 50 58 68 47 60 69 68 48 60 69 79 58 7 80 390 78 350 390 PERFORMANCE DATA 6 5 48 Power dissipation at 0ºC PATE 6PATE 0.5 watt 7 watts 8.6 watts 8 watts Backlash 0º max º max zero Max surface temperature 80º C 80º C 80º C Max speed continuous slip 000 rpm 000 rpm 600 rpm STANDARD BORES 6 5 48 At B end At B end At B end ØB, ØB +0.00/ 0 (+0.03mm/0mm) (4) (6) /4 5/6 (8) 3/8 (0) () / (4) 5/8 (6) (8) (9) 3/4 (0) At B end At B end At B end Bore ref. s indicated in parenthesis are metric. 8 4 7 8 3 3 35 36 38 4 4 45 46 47 48 Corresponding bore adaptor 53 55 57 59 60 6 Diameters for which a bore adaptor is shown can be adapted to smaller shaft sizes. See page 58 for details P793HD /7... Huco 8888896637 +44 (0) 99 50900 55

Varitork Adjustable Friction Clutches How to install VariTork BASIC CUTCH REFS. 7, 79, 40 & 409 Controlled slip occurs between pulley and shaft. Pulley (or gear, etc.) bonded to register. Press fits not permissible. BASIC CUTCH + SEEVE ADAPTOR REFS. 73, 8, 403 & 4 Controlled slip occurs between H & RH shafts. Clutch orientation not important, supported shaft may be entered either end. Motor, gearbox, or other externally supported shaft Motor, gearbox, or other externally supported shafts can pass thro hollow hub. Please enquire for clutch/pulley assemblies. Small spools, paddles, knobs, etc. can be attached after fitting a suitable stub shaft. Side loads must be minimal. Avoid connecting both ends of this clutch to externally supported shafts. BASIC CUTCH + FEXIBE COUPING REFS. 67, 69, 77, 85, 397, 399, 407 & 45 Controlled slip occurs between H & RH shafts. VariTork characteristics The characteristics of dry plate clutches favour those applications which can tolerate relatively imprecise drag torques. Three tendencies should be noted: BREAKAWAY TORQUE After a period during which no slipping has taken place, the breakaway torque can be up to / times the set value. TORQUE DECAY There is an inverse relationship between clutch temperature and slipping torque. The slipping torque reduces from the set value as the power being dissipated causes the clutch temperature to rise. When slipping continuously, torque settles at approximately 70% of the value set on a new clutch and at approximately 80% of the value set on a used clutch. This characteristic is not speeddependent. SPEED REATED TORQUE FUCTUATIONS Variations in slipping speed cause a momentary increase in the prevailing output torque. The clutches behave more consistently at high speed/low torque than at low speed/high torque. High speed in this instance starts at approximately 500 rpm. Where applications call for sustained slipping, the housing temperature should be maintained below 80 C. Clutches mounted concentrically within pulleys, gear wheels, etc. will be more effective at dissipating heat generated during slipping. CACUATING FOR POWER DISSIPATION Given the slipping speed in rpm and the drag torque in Nm, the following equation can be used for calculating the power dissipation in watts (W). W = Nm rpm 9.55 Motor, gearbox, or other externally supported shafts ocking ring In some circumstances it is possible for the adjuster ring to unscrew during operation. The adjuster ring can be secured by fitting locking ring ref. 94.5. ocking ring 3. swept dia 5.0 order ref. 94.5 size 5 only Removing the adjuster ring ) If this should be necessary, be sure to replace the pressure plate first, then the spring washers. Ensure that the topmost friction ring is fully engaged with the splines. A disengaged friction ring will cause the clutch to malfunction. ) To remove the adjuster ring, first remove the clamp. With set screw hubs the adjuster ring cannot be removed if the set screws protrude above the hub diameter. Flatting or dimpling of shafts is recommended and may be necessary with shafts larger than Ø6.35 to avoid the screws fouling the adjuster ring. Fit locking ring flush with end of housing as shown. ightly tension locking screw to secure the adjuster. Wrench size.5 Waved washers Two waved washers are fitted to these clutches. In some instances, better torque control may result from removing one of them, particularly when working in the lower torque ranges. Construction 5 VariTork Adjuster ring Sintered bearings both ends O ring seal & adjuster ring thread lock END B END B Set screw hub Clamp hub Sectional view of 6plate VariTork Ref. 79.5 Shafts are secured by set screws accessed through radial holes in the adjuster ring. Sectional view of 6plate VariTork Ref. 409.5 Shafts are secured by a split hub and ring clamp method which does not score the shafts. 56 Huco 888896637 +44 (0) 99 50900... P793HD /7

Bore Adaptors Bore adaptors offer a convenient way of adapting a coupling to a variety of shaft diameters, typically at the R & D stage. A range of motor options, for example, can be accommodated with one coupling and a selection of Hucooks. When fitted to set screw hubs, adaptors prevent the screws from scoring the shafts and permit repeated repositioning and easy removal of the coupling. The adaptors feature a feathered head which sits in the chamfer at the bore entry and prevents overinsertion. P793HD /7... Huco 8888896637 +44 (0) 99 50900 57

Hucook Metal (non insulating) bore adaptors s indicated in parenthesis are metric. Cat ref. 5 53 *54 55 57 59 60 6 (5) /4 (8) (8) (0) / (6) (0) 0.7 (4.3) 0.6 (6.6) 0.3 (5.8) 0.3 (8.) 0.3 (8.) 0.4 (0.7) 0.5 (3.) 0.79 (0) to fit bores coded 0 4 8 8 3 36 4 48 T S ØB S 45 Bore For optimum fastening, install HUCOOK bore adaptors as shown. S represents screws in set screw hub. T represents tangential screw in clamp hub. F shows recommended orientation of flatted shaft in set screw hub. F minor ØB () 5. 53. (3) 5.4 53.4 54.4 55.4.0 5.5 53.5 54.5 55.5 /8 5.6 53.6 54.6 55.6 (4) 5.8 53.8 54.8 55.8 3/6 53.9 54.9 55.9 (5) 53.0 54.0 55.0 Adaptor ref. (6) 54. 55. 57. /4 57.4 59.4 60.4 (7) 57.5 59.5 60.5 (8) 57.8 59.8 60.8 6.8 (9) 59.30 60.30 6.30 (0) 59.3 60.3 6.3 () 60.33 6.33 () 60.35 6.35 (4) 60.38 6.38 (5) 6.40 (6) 6.4 (8) 6.45 material brass aluminium alloy Note that both traction and concentricity may be affected when using an adaptor. For best results shafts with h6 tolerance or better, are recommended. Undersized shafts become progressively less effective. For similar reasons, flatted shafts with more than /4 of their diameter removed are not recommended. 58 Huco 888896637 +44 (0) 99 50900... P793HD /7

Formula and Conversion Factors for Motion Transfer P793HD /7... Huco 8888896637 +44 (0) 99 50900 59

Formula and Conversion Factors SI BASE UNITS Quantity Unit Symbol Name length m meter mass kg kilogram time s second electric current A ampere Thermodynamic temperature K kelvin luminous intensity cd candela ETTER SYMBOS & SI UNITS IN POWER TRANSMISSION ENGINEERING Symbol Quantity SI Unit Name Symbol Mechanics E modulus of elasticity (Young s modulus) Pa pascal F force N Newton G (W) weight N Newton J moment of inertia kgm kilogram meter squared M (T) torque Nm Newton meter m mass kg kilogram P power W watt p pressure Pa pascal ρ density (mas density) kg/m 3 σ stress Pa pascal W (E) work (energy) J joule η efficiency μ coefficient of friction FORMUAE POWER ifting motion P = inear motion P = F r = μ. m. g Rotary motion M. n P = 9550 P Power in kw F r Frictional resistance in N m Mass in kg International System(SI) Imperial System (FPS) m. g. v η. 000 F r. v 000 g Acceleration of free fall (9.8) in m/s v Velocity in m/s η Efficiency in decimals μ Coefficient of friction M in Nm n Rotational speed in /min or r/min ifting motion P = inear motion P = F r. v 33000 F r = Rotary motion P = W. v η. 33000 μ. W M. n 550 P Power in hp F r Frictional resistance in lbf W Weight in lb v Velocity in ft/min η Efficiency in decimals μ Coefficient of friction M in lbf. ft n Rotational speed in rpm TORQUE M F. r P = 9550. P n M in Nm F Force in N r Radius of lever in m P Power in kw n Rotational speed in WORK /min or r/min W F. s = m. g. s W = W Work (energy) in Nm = Ws = J F Force in N s ength of path in m m Mass in kg g Acceleration of free fall (9.8) in m/s J Moment of inertia in kgm n Rotational speed in /min or r/min ta = Solid Cylinder J = = International System(SI) j. n 8.5 ACCEERATION OR BRAKING TIME ta Acceleration or braking time in s J Moment of inertia in kgm n Rotational speed in /min or r/min M a Acceleration or braking torque in Nm MOMENT OF INERTIA. m. r ext. 000. π. ρ. l. d 4 ext 3 = 98 ρ. l. d 4 ext Hollow Cylinder J =. m. (r ext+r int) =. 000. π. ρ. l (d 4 extd 4 int) 3 = 98. ρ. l (d 4 ext d 4 int) M F. r P = 550. P n M in lbf. ft F Force in lbf r Radius of lever in ft P Power in hp n Rotational speed in rpm W F. s W = W Work (energy) in lb. ft F Force in lbf s ength of path in ft m Mass in kg g Acceleration of free fall M. W. r ext a Acceleration or braking torque in lb. ft Solid Cylinder WK = = = 0. ρ. l. d 4 ext Hollow Cylinder WK = (9.8) in m/s WK Flywheel effect lb. ft n Rotational speed in rpm j. n ta = WK. n 9.55 M a 308 M a torsional stiffness and resonant frequency C T (F R x π) + ( J M + J ) ta Acceleration or braking time in s WK Flywheel effect in kgm n Rotational speed in rpm FR + π x ( J M + J ) x C T = Imperial System (FPS) WK. n 5880. W. r ext π. ρ. l. d 4 ext 3. W. (r ext+ r int) π. ρ. l (d 4 ext d 4 int) 3 = 0.. ρ. l (d 4 ext d 4 int) Where C T = torsional stiffness (Nm/rad); J M = motor inertia (kgm ) F R = resonant frequency (Hz) J = load inertia (kgm ) 60 Huco 888896637 +44 (0) 99 50900... P793HD /7

Formula and Conversion Factors FORCE N kp p tonf (UK) lbf ozf N = 0.00 0.0 00.4 x 0 6 0.48 3.597 kp = 9.807 000 0.984 x 0 3.05 35.7 p = 9.8 x 0 3 x 0 3 0.984 x 0 6. x 0 3 35.3 x 0 3 tonf (UK) = 9964 06.0 x 0 6 40 35.8 x 0 3 lbf = 4.448 0.4536 453.6 0.5 x 0 6 6 ozf = 8.4 x 0 3 8.35 7.9 x 0 6 6.5 x 0 3 VEOCITY km/h m/min m/s mile/h ft/min ft/s in/s km/h = 6.667 0.778 0.64 54.68 0.93 0.936 m/min = 0.06 6.7 x 0 3 37.3 x 0 3 3.8 54.7 x 0 3 0.656 m/s = 3.6 60.37 96.85 3.8 39.37 mile/h =.609 6.8 0.4470 88.467 7.6 ft/min = 8.3 x 0 3 0.3048 5.08 x 0 3.4 x 0 3 6.7 x 0 3 0. ft/s =.097 8.88 0.3048 0.688 60 in/s = 9 x 0 3.54 5.4 x 0 3 56.8 x 0 3 5 83.3 x 0 3 TORQUE Nm Ncm kgfm lbf.ft lbf.in ozf.in Nm = 00 0.097 0.73756 8.8507 4.6 Ncm = 0.0.0 x 0 3 7.376 x 0 3 88.5 x 0 3.46 kgfm = 9.8067 980.67 7.33 86.796 389 lbf.ft =.356 35.6 0.383 9 lbf.in = 0.9.9.5 x 0 3 83.3 x 0 3 6 ozf.in = 7.06 x 0 3 0.706 0.7 x 0 3 5. x 0 3 6.5 x 0 3 POWER kw PS hp kgfm/s ft.lbf/s kw =.360.34 0.0 737.6 PS = 0.7355 0.9863 75 54.5 hp = 0.7457.04 76.04 550 kgfm/s = 9.8 x 0 3 3.33 x 0 3 3.5 x 0 3 7.33 ft.lbf/s =.36 x 0 3.84 x 0 3.8 x 0 3 0.383 MOMENT OF INERTIA AND OTHER FYWHEE EFFECTS kgm (mr ) kgfm (GD ) lb.ft (WK ) kpms ft lbf s kgm (mr ) = 4 3.73 0.0 0.7376 kgfm (GD ) = 0.5 5.933 5 x 0 3 0.844 lb.ft (WK ) = 4. x 0 3 0.686 4.30 x 0 3 3. x 0 3 kpms = 9.807 39.3 3.7 7.33 ft lbf s =.356 5.43 3.7 0.383 ENGTH mm m in ft yds km miles mm 0.00 0.3937 0.0033 0.0009 m 000 39.370 3.808.0936 0.00 0.00065 in 5.4 0.054 0.0833 0.077 0.000054 0.000058 ft 304.8 0.3048 0.3333 0.000304 0.000894 yd 94.4 0.944 36 3 0.00094 0.000568 km 000 39,370.07 3,80.83,093.63 0.65 mile,609 63,346.45 5,78.87,759.63.609 P793HD /7... Huco 8888896637 +44 (0) 99 50900 6