DescriptionSet screw type, beam coupling. Zero backlash. One-piece spring coupling. For little torque shaft connect. Absorption of parallel, angular misalignments and shaft end-play by spring action. Widely used in drive systems for encoders, instrumentation,lead screws, small pumps, feed rollers and anywhere light to medium duty, torsionally flexible coupling is required.Features- Color: Silver. - Material: Aluminum alloy. - Size: 2.00 x 1.80 x 1.80cm/ 0.79 x 0.71 x 0.71 inch. - Clamp-style mount for secure attachment to shaft. Accommodates angular, axial and parallel misalignment. - Aluminum alloy hubs for light weight, durable discs for strength. - Shaft couplers suitable for connect servo motor, stepper motor, encoder, screw driving, machine platform, etc. - The structure is simple, easy to install, buffer, damping, convenient to disconnect. - The elastic connection, you can absorb vibration, compensate radial, angular and axial misalignment.