18mm to 0.625 Inch Jaw Type Flexible Coupling D40-L66 - Aluminum Shaft Coupler for Motor and Drive Connections

Aluminum D40-L66 jaw-type coupling: 18 mm & 0.625 in bores
✔️ 40 mm OD, 66 mm L, 18 mm & 0.625 in bores, aluminum, single unit

The D40-L66 is a jaw-type flexible coupling designed to connect motor and drive shafts. Made from lightweight aluminum, it handles small misalignment and reduces vibration in compact systems. Commonly used in CNC machines, robotics, conveyors, and automation gear trains where reliable, backlash-free torque transfer matters. Dual bore options are 18 mm and 0.625 in, with a 66 mm hub length for solid, easy installations.

✅ Bore 1: 18 mm (0.71 in) diameter
✅ Bore 2: 0.625 in (15.9 mm) diameter
✅ Length: 66 mm (2.60 in)
✅ Outer diameter: 40 mm (1.57 in)
✅ Material: Aluminum
✅ Type: Jaw-type with tight-fit to minimize backlash at low torque
✅ Electrical insulation: Yes
✅ Quantity: 1

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

This handy shaft connector joins shafts while tolerating small misalignment and dampening vibration to smooth motion. - transfer torque with minimal backlash in compact motor drives - tolerate small angular and parallel misalignment in robotics and automation - reduces vibration for smoother operation in CNC and conveyor lines