Ruland JD21/33-98R Jaw Coupling Spider

Ruland JD21/33-98R Jaw Coupling Spider is an elastomeric insert used in three-piece jaw couplings to transmit torque while absorbing shock and vibration. It fits Ruland JC21 and MJC33 hubs and provides a firm yet flexible connection ideal for motion control systems. Coupling type: Jaw coupling spider Compatible hub sizes: JC21 and MJC33 Material: Polyurethane Hardness: 98 Shore A Color: Red Bore: 0 (solid, for insert use only) Torque capacity: Up to 1.5 Nm (with JC21/MJC33 hubs) Maximum operating speed: Up to 8,000 RPM (hub dependent) Temperature range: -40 °C to +80 °C Function: Transmits torque while damping vibration and accommodating slight misalignments Typical applications: Servo systems, stepper motor drives, light-duty power transmission Country of origin: USA Part number: JD21/33-98R Please review pictures carefully and let us know if you have any questions!