15mm to 17mm Jaw Type Flexible Coupling D40-L66 - Aluminum Shaft Coupler for Motor and Drive Connections

This single-unit aluminum jaw-type coupling (D40-L66) connects motors to drive shafts with 15-17 mm bores. It’s a compact, low-backlash option for robotics, CNC machines, 3D printers, and other small automation where precise torque transfer matters. The aluminum body keeps it lightweight yet stiff, and it includes electrical insulation for safer operation.

✅ Bore 1: 15 mm; Bore 2: 17 mm
✅ Length: 66 mm; Diameter: 40 mm
✅ Material: Aluminum; lightweight and durable
✅ Tight-fit design enables zero-backlash at low torque
✅ Electrical insulation properties for safe operation

💡 What is a jaw-type flexible coupling used for?

It's a handy shaft connector that tolerates small misalignment and dampens vibration while transmitting torque smoothly.

• Handy in robotics, CNC, and small machinery setups
• Helps absorb angular and parallel misalignment without adding backlash
• Lightweight aluminum body makes install quick and simple
• Protects driving components by smoothing minor shocks