5 PCS Flexible Coupling Coupler 5mm to 8mm Shaft Coupler Aluminum Alloy Joint Shaft for RepRap 3D Printer Prusa i3 or CNC Machine Stepper Motor

الوصف

Feature: Zero clearance drive, clockwise and counterclockwise rotation are exactly the same. The shaft is fixed by means of fastening bolts. Simple structure, easy to install. Adoption of premium aluminum material, it is durable and long lasting. Elastic coupling can eliminate the stress between the motor and the drive parts. It provides an extremely tight grip without marring the shaft. Compatible with stepper motors, 3D Printers or small CNC machines. Specification: - Color: Silver - Material: Aluminum alloy - Weight: about 75 g - Size: Diameter 19mm, height 25mm, aperture：5mm * 8mm. Package Including： 5 x Flexible Shaft Couplings 5mm to 8mm