18mm to 1/2" Jaw Type Flexible Coupling D40-L66 - Aluminum Shaft Coupler for Motor and Drive Connections

Aluminum jaw-type flexible coupling, 18mm to 1/2in bore
✔️ Body dia 40mm, length 66mm, bores 18mm and 1/2in, aluminum qty1

The D40-L66 aluminum jaw-type flexible coupling is designed to connect a motor shaft to a driven shaft. It provides low-backlash torque transmission, handles minor angular misalignment and eccentricity, and is ideal for compact drive trains in automation, robotics, conveyors, and CNC setups. This single-pack unit ships ready for quick installation.

✅ Tight-fit design enables zero-backlash torque transmission
✅ Aluminum body provides strength with light weight
✅ Jaw-type interface allows easy assembly and misalignment tolerance
✅ Electrical insulation on the spider provides safe operation

Dimension	Metric	Imperial
Body diameter	40 mm	1.57 in
Length	66 mm	2.60 in
Bore 1	18 mm	0.71 in
Bore 2	12.7 mm	0.50 in

💡 What is a jaw-type flexible coupling used for in motor-to-drive connections?

In short, these couplings join shafts while absorbing tiny misalignments and vibrations. - Align shafts and transmit torque smoothly - Tolerate angular and parallel misalignment to extend bearing life - Fit into compact drive layouts with quick installation