19mm to 19mm Jaw Type Flexible Coupling D40-L66 - Aluminum Shaft Coupler for Motor and Drive Connections

This jaw-type flexible coupling connects motor shafts to driven shafts, enabling torque transfer with minimal backlash. It is a compact, lightweight aluminum shaft coupler designed for motor and drive connections in small machines and DIY projects. This is a single-unit, 1-piece package.

✅ 19mm bore on both ends
✅ 40mm outer diameter
✅ 66mm overall length
✅ Aluminum construction for lightweight strength
✅ Zero backlash at low torque for precise motion
✅ Easy fit with tight hub tolerance

💡 What is a handy use for a jaw-type flexible coupling in small drive systems? It’s handy for connecting two shafts that must stay aligned while transmitting torque, reducing vibration and backlash in compact drive setups. - Suitable for motor-to-driven shaft connections with 19mm bore to 19mm bore
- Ideal for DIY CNC, hobby machines, and small automation projects
- Aluminum body keeps weight down and makes installation easy
- Flexible spider insert tolerates minor misalignment for smoother operation