1/2" to 12.7mm Jaw Type Flexible Coupling D40-L66 - Aluminum Shaft Coupler for Motor and Drive Connections

Aluminum Jaw-Type Coupling D40-L66: 1/2 to 12.7mm bore
✔️ Bore 1: 1/2", Bore 2: 12.7mm, L: 66mm, Ø40mm, aluminum, pack: 1

This aluminum jaw-type flexible coupling connects motors to drives with tight torque transmission and minimal backlash. It's a reliable choice for compact automation, robotics, and hobby CNC setups where precise alignment matters.

Dimension	mm	inches
Bore 1	12.7	0.50
Bore 2	12.7	0.50
Length	66	2.60
Diameter	40	1.57

✅ Material: Aluminum
✅ Type: Jaw-type flexible coupling
✅ Bore compatibility: 1/2" and 12.7mm
✅ Size: Ø40mm, L:66mm
✅ Backlash: zero at low torque
✅ Spider insert color varies by stock

💡 What is a jaw type flexible coupling used for?

Handy answer: it links shafts with limited misalignment for smooth torque transfer.

- Transmits torque while absorbing minor angular and parallel misalignment - Reduces vibration and wear in motors, gearboxes, and CNC drives - Simple installation with hub and sleeve components