15mm to 20mm Jaw Type Flexible Coupling D40-L66 - Aluminum Shaft Coupler for Motor and Drive Connections

This D40-L66 jaw-type flexible coupling is a compact aluminum shaft coupler designed to connect motors and driven components. It’s commonly used in robotics, CNC machines, and light-duty automation for reliable, low-backlash torque transmission.

✅ Bore range: 15-20 mm
✅ Length: 66 mm
✅ Outer diameter: 40 mm
✅ Material: Aluminum
✅ Type: Jaw-type flexible coupling
✅ Pack: 1 unit

💡 What is a jaw-type flexible coupling and when should I use it?

Jaw-type couplings are handy for connecting shafts with minor misalignment while keeping torque transfer tight and predictable.

• low-backlash torque transmission in motor-to-drive setups
• absorbs angular and parallel misalignment to reduce binding
• lightweight aluminum construction aids handling and cooling
• fits 15-20 mm bore like the D40-L66 model for simple swaps