Compact safety coupling

Making use of the existing EKL line of compact elastomer couplings, the  SLE safety coupling offers a compact, flexible and vibration damping option with integral torque overload release. Designed for aggressive servo driven applications, the SLE is backlash free, relying on preloads and frictional connections, along with a precision molded, wear resistant, polyurethane insert to damp vibration and relieve bearing loads resulting from misalignment. In the event of a machine crash, power surge, or any other cause of unanticipated overload, the SLE will disengage the motor or gearbox shaft from the load in less than 3 milliseconds. Re-engagement takes place automatically with slow speed rotation of the shaft subsequent to the overload occurrence. Available in four sizes, the SLE handles a range of disengagement torque values from 5 to 700 Nm, and English or metric shaft diameters from 12 to 60 mm.

R+W America
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Elastomer couplings with higher torque handling capacity

The growing popularity of curved jaw (elastomer) style couplings for precision applications has driven the need for couplings that handle more than the traditional torque capacity of 2,150 Nm up to a maximum torque of 25,000 Nm.

Available with split clamping collars or keyway and set screw connections, the three new body sizes allow for backlash free, vibration damping power transmission, paired with strong torque density. Dual flexture and jack shaft versions are also available for spanning longer distances and compensating for larger misalignments. Unlike the pre-existing range of R+W elastomer couplings, which use a single spider element between the new hubs, the new larger sizes will use individual vibration damping compensation elements to fit between each mating set of coupling teeth. These couplings are available in English and metric bore diameters up to 170 mm.
R+W America
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Expanded Line of Servo Insert Couplings

The SERVOMAX line of precision elastomer insert couplings from R+W has been expanded to include both smaller and larger sizes as well as enhanced mounting options. The R+W SERVOMAX utilizes secondary heat treatment of the injection molded polyurethane insert to smooth out inconsistencies in the driving surfaces, allowing for a smooth fit and higher repeatability.

The couplings compensate for all types of shaft misalignment while damping vibration and maintaining a backlash free performance. Three different Shore hardnesses allow the designer to select the correct amount of flexibility, vibration damping or stiffness depending on their performance requirements. Their high torque density and reasonable cost makes them ideal for aggressive applications within a small space.

The newly redesigned SERVOMAX EK range now includes 9 sizes and accepts English or metric shafts ranging from 3 – 80 mm (0.118 – 3.150 in.). Torques range from 0.5 – 2150 Nm (4.43 – 19,027 in-lbs). Available in aluminum, steel, stainless steel or engineered polymer, new mounting styles include a wear resistant mechanical torque limiter, fully split clamping collars, adjustable length drive shafts and more. For more information contact R+W America at (630) 521-9911 or info@rw-america.com

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