BACKLASH FREE ELASTOMER COUPLINGS SERVOMAX® / ECOLIGHT® 0.5 - 25,000 Nm GENERAL INFORMATION ABOUT R+W ELASTOMER COUPLINGS: SERVICE LIFE SPECIAL SOLUTIONS When properly selected, handled, and installed, these couplings are maintenance free with infinite service life. Various materials, tolerances, dimensions and performance ratings available for custom applications on request. For use in hazardous zones 1/21 and 2/22, the elastomer coupling has been authorized under directive 94/9/EG and is available with certification. FIT CLEARANCE Overall shaft / hub clearance of 0.01 - 0.05 mm FEATURES Elastomer is press fit for zero backlash; standard versions are electrically isolating. ATEX CERTIFIED COUPLINGS ATEX (Optional) SERVO DISC PACK COUPLINGS SCL

TX BACKLASH FREE ELASTOMER COUPLINGS SERVOMAX® AND ECOLIGHT®0.5 - 25,000 Nm MODEL FEATURES EK1 with keyway connection from 0.5 - 25,000 Nm ► press fit design ► readily modified for custom dimensions EK2 with clamping hub from 6 - 2,150 Nm ► high concentricity EKH with split clamping hub from 4 - 25,000 Nm ► for lateral installation ► allows for pre-aligned shafts EK6 with conical clamping ring from 4 - 25,000 Nm ► high concentricity ► high clamping pressure ► self centering hub design ► allows for axial installation

with expanding shaft from 2 - 2,150 Nm for hollow shaft mounting expanding shaft through axial tightening short body length after installation intermediate spacer from 2 - 2,150 Nm high lateral misalignment easy to mount vibration damping for tapered shafts from 6 - 400 Nm for tapered shafts such as Fanuc motors easy mounting axial installation onto tapered shaft corrosion proof low cost light weight ATEX CERTIFIED COUPLINGS with keyway connection from 0.5 - 810 Nm very high precision very high concentricity high clamping force symmetrically machined hubs SERVO DISC PACK COUPLINGS SCL for high...

GENERAL INFORMATION R+W ELASTOMER COUPLINGS AXES OF MISALIGNMENT Lateral FUNCTION The equalizing element of the EK coupling is the elastomer insert. It transmits torque without backlash or vibration. The elastomer insert defines the characteristics of the entire drive system. Backlash is eliminated by the press fit of the elastomer into the hubs. Through variation of the Shore hardness of the elastomer insert, the coupling system can be optimized for the ideal torsional characteristics. Shore hardness 80 Sh A Shore hardness 65 Sh D SIZES 2500 - 9500 THE COUPLING INCLUDES 5X ELASTOMER SEGMENTS

WITH KEYWAY CONNECTION0.5 - 2,150 Nm PROPERTIES ► readily modified for custom dimensions ► Hubs: up to size 450 high strength aluminum; size 800 steel ► Elastomer: wear resistant thermally stable TPU Two concentrically machined hubs with curved jaws, keyways, and set screws. Conical bores for Fanuc motors and other tapered shafts available. For information on shaft misalignment, torsional stiffness, and other details about the elastomer inserts see pages 72 + 73.

WITH KEYWAY CONNECTION1,950 - 25,000 NmPROPERTIES FEATURES ► readily modified for custom dimensions ► Elastomer: wear resistant thermally stable TPU Two concentrically machined hubs with curved jaws, keyways, and set screws. Elastomer insert consist of 5 segments. For information on shaft misalignment, torsional stiffness, and other details about the elastomer inserts see pages 72 + 73.

WITH CLAMPING HUB6 - 2,150 NmPROPERTIES FEATURES DESIGN ► easy mounting Two concentrically machined hubs with ► highly concentric assembly curved jaws and clamping screws. ORDERING EXAMPLE ► Hubs: up to size 450 high strength aluminum; size 800 steel ► Elastomer: wear resistant thermally stable TPU For information on shaft misalignment, torsional stiffness, and other details about the elastomer inserts see pages 72 + 73. * Maximum transmittable torque of the clamping hub depends on the bore diameter Higher torque possible with keyways

COMPACT VERSION WITH CLAMPING HUB0.5 - 2,150 Nm PROPERTIES FEATURES ► short overall length ► Hubs: up to size 450 high strength aluminum; size 800 steel ► Elastomer: wear resistant thermally stable TPU Two concentrically machined hubs with curved jaws and clamping screws. For information on shaft misalignment, torsional stiffness, and other details about the elastomer inserts see pages 72 + 73. * Maximum transmittable torque of the clamping hub depends on the bore diameter Higher torque possible with keyways.

WITH SPLIT CLAMPING HUB4 - 2,150 Nm PROPERTIES ► easy installation and removal ► allows for pre-alignment of shafts Two concentrically machined, fully split hubs with curved jaws and clamping screws. ► Hubs: up to size 450 high strength aluminum; size 800 steel ► Elastomer: wear resistant thermally stable TPU For information on shaft misalignment, torsional stiffness, and other details about the elastomer inserts see pages 72 + 73. * Maximum transmittable torque of the clamping hub depends on the bore diameter Higher torque possible with keyways

WITH SPLIT CLAMPING HUB1,950 - 25,000 NmPROPERTIES FEATURES ► lateral mounting ► easy installation and removal ► allows for pre-alignment of shafts ► Elastomer: wear resistant thermally stable TPU Two concentrically machined, fully split hubs with curved jaws and clamping screws. Elastomer insert consist of 5 segments. elastomer insert type A / B For custom features place an XX at the end of the part number and describe the special requirements (e.g. EKH / 60 / A / 12.7 / 24 / XX; XX=anodized aluminum)

WITH CONICAL CLAMPING RING4 - 2,150 Nm PROPERTIES FEATURES DESIGN ► high clamping pressure Two concentrically machined hubs with ► self centering on shaft curved jaws and conical clamping rings. ► very high concentricity For information on shaft misalignment, torsional stiffness, and other details about the elastomer inserts see pages 72 + 73.

WITH CONICAL CLAMPING RING1,950 - 25,000 NmPROPERTIES FEATURES ► high clamping pressure ► self centering on shaft ► very high concentricity MATERIAL► Hubs: GGG40► Elastomer: wear resistant thermally stable TPU DESIGN Two concentrically machined hubs with curved jaws and conical clamping rings. Elastomer insert consist of 5 segments. For information on shaft misalignment, torsional stiffness, and other details about the elastomer inserts see pages 72 + 73.