Features The plum clutch shaft is made of high-strength aluminum, has excellent load capacity and a long service life without lubrication. The plum blossom coupling encoder has a small radial size and light weight, which is suitable for medium and high speed devices. Couplings are commonly used to connect servo motors, stepper motors, encoders, thread drives, machine platforms, etc. The performance of this clutch is stable and reliable, with good shock absorption, damping and electrical insulation properties. The flexibility of the clutch shaft eliminates tension between the motor and the drive components. Description: Shaft coupler is often used to connect servo motors, stepper motors, encoders, screw drives, machine platforms, etc. Shaft: approx. 8 x 12 mm / 0.3 x 0.5 inches. Length: Approx. 30 mm / 1.2 inches. Diameter: approx. 25mm Material: aluminium. Package includes: 1 x shaft coupling. Package List