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Ruland jaw couplings have a zero-backlash balanced design for reduced vibration at speeds up to 8,000 RPM
Users can combine clamp or set screw hub with inch, metric, keyed, or keyless bore for a high level of customization
Spider made from 98 Shore A polyurethane for high torque and torsional stiffness capabilities
Fail safe design with hubs interlocking if the spider fails
Ruland jaw coupling spiders are RoHS3 and REACH compliant
Carefully made by Ruland in Marlborough, MA, curved jaw couplings are comprised of two hubs pressed fit with an elastomer "spider" with the same OD. Curved jaw couplings are zero-backlash by design and are well-suited to servo applications where accuracy of torque transmission is required. The red spider is made from an advanced polyurethane material and has the greatest torsional stiffness. Maximum is 8,000 RPM. RoHS and Reach compliant. Also called a jaw coupling insert or spider.