PRECISE AND COMPACT. SERVOMAX ® ELASTOMER COUPLINGS SERIES EK | 2 – 25,000 Nm THE ULTIMATE COUPLING FROM 2 – 25,000 Nm www.rwcouplings.com EK_E_2012.indd 1 08.05.12 10:36

BACKLASH FREE ELASTOMER COUPLINGS Areas of application: ■ ■ ■ ■ servo drives machine tools packaging machinery plant automation printing machinery MODELS Properties of the product range: ■ ■ ■ ■ industrial robots measurement and positioning units general mechanical engineering linking screw jacks, linear actuators, encoders ■ ■ ■ ■ ■ PROPERTIES EKL vibration damping electrically isolating (standard version) backlash free press fit design compensation for lateral, angular and axial misalignment APPLICATION EXAMPLES with clamping hub from 0.5 - 2,200 Nm ■ ■ ■ short compact design low inertia easy...

SERVOMAX APPLICATION EXAMPLES with keyway mounting from 0.5 - 25,000 Nm ■ ■ Spindle economical design easy to modify for customer requirements Motor EK1 PROPERTIES Motor MODELS see page 10 intermediate spacer from 2 - 2,200 Nm ■ ■ ■ ■ high misalignment compensation easy assembly vibration damping electrically isolating Spindle Motor EKZ see page 11 with expanding shaft from 2 - 2,200 Nm ■ ■ ■ ■ ■ EK4 for hollow shaft mounting axial installation with expanding shaft very smooth running well suited to space restricted applications compact design Motor EK7 see page 12 for tapered shafts from 6 -...

BACKLASH FREE ELASTOMER COUPLINGS MODELS PROPERTIES EZV APPLICATION EXAMPLES adjustable length line shaft from 12.5 - 1,200 Nm ■ ■ ■ ■ ■ ES2 adjustable tube with split clamping hubs adjustable length and rotational orientation radial mounting due to split hubs no pillow block bearing necessary lengths up to 4 meters see page 16/17 ■ ■ ■ reliable torque overload protection backlash free due to patented R+W design easy to mount Motor torque limiter with clamping hub from 1 - 1,800 Nm Spindle see page 18/19/20 ESL Spindle ■ ■ ■ economical design compact ratcheting multi position design Motor “economy...

® SERVOMAX EZ2 Misalignments lateral angular axial Function Series 2-800 Series 2500 - 9500 A The equalizing element of EK couplings is the elastomer insert. It transmits torque without backlash or vibration. The elastomer insert defines the characteristics of the entire drive system. coupling assembly includes 5 individual elastomer segments The coupling is backlash free due to a pretension of the elastomer insert between the two coupling halves. SERVOMAX couplings compensate for lateral, angular and axial misalignment. Shore hardness 98 Sh A Specifications of the elastomer inserts Type Shore...

BACKLASH FREE ELASTOMER COUPLINGS keyway optional pact version with clamping hu ■ short compact design Clamping hub: up to series 450 high strength aluminum, from series 800 and up steel Elastomer insert: precision molded, wear resistant, and thermally stable polymer Two coupling hubs are concentrically machined with curved jaws ISO 2.5 balance grade available Overall clearance between shaft and hub 0.01 to Information about static and dynamic torsional stiffness as well as max. possible misalignment see page 5 ** Maximum transmittable torque depends on the bore diameter (overall clearance between...

MODEL EK2 Standard version with clamping hubs BACKLASH FREE ELASTOMER COUPLINGS A Ø BS H E ISO 4762 F Ø D2H7 Ø D1H7 ØB G Properties: ■ easy assembly ■ concentrically machined hubs ■ vibration damping ■ electrically isolating ■ backlash free ■ press fit design C Material: Clamping hub: up to series 450 high strength aluminum, from series 800 and up steel Elastomer insert: precision molded, wear resistant, and thermally stable polymer DIN 6885 or inch keyway optional C Design: Two coupling hubs are concentrically machined with curved jaws Ø DE Speeds: See table below *Please contact R+W ISO 2.5...

BACKLASH FREE ELASTOMER COUPLINGS Elastomer insert Elastomer insert with split clamping hubs ■ lateral mounting possible ■ concentrically machined hubs Clamping hub: up to series 450 high strength aluminum, Elastomer insert: precision molded, wear resistant, and thermally stable polymer Both clamping hubs are fully separable in a single direc- tion. With 2x ISO 4762 screws per hub through the series 800 and with 4x ISO 4762 screws per hub from the series Speeds: See table below *Please contact B+W, ISO 2.5 balance grade available Tolerance: Overall clearance between shaft and hub Information...

MODEL EK6 with conical clamping ring BACKLASH FREE ELASTOMER COUPLINGS E ISO 4762 C Ø DE A (Nm) Max. torque (Nm) Overall length (mm) Outside diameter (mm) Mounting length (mm) Inside diameter range H7 (mm) Inside diameter of elastomer (mm) Distance Moment of inertia per Hub B 20 60 Series 300 450 150 B C A B C A B C A B 2500 C A B 4500 A 9500 A B C A B C TKN 12.6 16 4 TKmax 25 32 6 42 A 32 B/B1 15 C 6 - 16 D1/2 14.2 DE 17 21 6 60 75 20 160 200 42 325 405 84 530 660 95 950 1100 240 1950 2450 5000 6200 10000 12500 42 12 120 150 35 320 400 85 650 810 170 1060 1350 190 1900 2150 400 3900 4900 10000...

MODEL EK1 with keyway connection BACKLASH FREE ELASTOMER COUPLINGS A G Ø DE E DIN 916 C Series 2500 - 9500 Properties: ■ economical design ■ concentrically machined ■ vibration damping ■ electrically isolating ■ press fit design ■ low backlash, due to keyway connection Speeds:See table below *Please contact R+W ISO 2.5 balance grade available Tolerance: Overall clearance between shaft and hub 0.01 to 0.05 mm C Model EK 1 2 Type (Elastomer insert) A Rated torque (Nm) Max. torque (Nm) Overall length (mm) Outside diameter (mm) Mounting length (mm) Inside diameter (pilot bored) (mm) Inside diameter...

MODEL EKZ Intermediate Spacer BACKLASH FREE ELASTOMER COUPLINGS Properties: ■ high misalignment compensation ■ easy assembly ■ vibration damping ■ electrically isolating ■ backlash free ■ press fit design Ø DE A ØD ØB Material: Intermediate spacer: high strength aluminum Elastomer insert: precision molded, wear resistant, and thermally stable polymer Design: A concentrically machined curved jaw intermediate spacer Speeds: See table C Elastomer insert Type A / B / C Optional: Can be used with any of the R+W elastomer couplings; custom spacer lengths available upon request Delivery: Intermediate...