Size:D20mm x L25mm , Bore:5mm to 8mmThe elastic spacer is made of polyurethane, and the torque exceeds the traditional claw coupling by more than 2 timesDuring transmission, it can realize zero backlash torque transmission torque under low torque state elastomer can resist oil and electrical insulation, operating temperature: -20~80Excellent elastic effect to absorb vibration, eccentricity and deflectionItem Type: 5mm x 8mm Shaft CouplerOuter Dia : 20mmLength : 25mmThe coupling is closely combined with the main body of the two half coupling with polyurethane plastic as the elastic element, and the main body is mainly made of alloy aluminum. It is applicable to servo system, spindle drive, lifting platform, machine tool drive and gearbox motor. Compact, no backlash, which can absorb vibration and compensate and angular deviation. It is mainly suitable for working with frequent starting, forward and reverse rotation, medium-high speed, medium .Colour:silverMaterial:aluminumPackage Contents:2 x Plum couplingOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.