2PCS Motor Shaft 5mm to 12mm Helical Beam Coupler Coupling 25mm Dia 30mm Length 1.5"x3"x1.01" This doorbell features a quality

This doorbell features a quality push button with a bell pattern

Total weight: 44g

Type: Wire Wound Multi Turn

Overall Size: 139x50mm / 5

2PCS Motor Shaft 5mm to 12mm Helical Beam Coupler Coupling 25mm Dia 30mm Length 1.5"x3"x1.01" This doorbell features a qualityZero backlash. Two piece metallic 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. Specification: Color: Silver Tone Material: Aluminum Alloy Connection Diameter: 5mm to 12mm Screw Angle: 90