Specification Brand : Aexit BulletPoint1 : Shaft Usage: 4mm to 4mm / 0.16 to 0.16 inch BulletPoint2 : Material: Aluminum alloy; Size: 25x20mm/ 0.98x0.79inch( L*D) BulletPoint3 : Feature: Screw Type(Coiling Clamping); Main Color: Silver tone BulletPoint4 : Flexibility of coupling shaft removes stress between the motor and driving components. BulletPoint5 : The shaft couplers are widely applied to small CNC machines encoding and 3D printers Z shaft coupling, simplifies the debugging difficulty. Color : Silver DriveSystem : Spline ExteriorFinish : Aluminum FinishType : Silver ItemName : Aexit Motor Shaft Electrical equipment 4mm to 4mm Joint Helical Beam Coupler Coupling 20mm Dia 25mm Length ItemTypeKeyword : beam-couplings Manufacturer : Aexit MetalType : Aluminum ModelNumber : modle PartNumber : 190104d61287 ProductDescription : Description: 4mm to 4mm shaft usage diameter, 25mm length, 20mm diameter, set screw type, beam coupling. Zero backlash. One-piece metallic spring coupling. For little torque shaft connect. Absorption of , 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. 0 Specification: Feature: Screw Type(Coiling Clamping); Main Color: Silver tone Size: 25x20mm/ 0.98x0.79inch( L*D) Material: Aluminum alloy Main Color: Silver tone Weight: 20g 0 Package Content: 1 x Shaft coupling ProductSiteLaunchDate : 2019-01-04T08:05:17.206Z Size : Other