CK A4090 One Way Clutch Bearing Sprag Type 40x90x28mm Overrunning Bearing Non Bearing Supported Design Requires Keyways On Inner And Outer Race Delivered Greased Constructed From GCr15 Chrome Steel

CK-A4090 One-Way Clutch Bearing 40x90x28mm, Single Pack
✔️ Sprag-type, greased; d40, D90, B28; 462 Nm; 0.87 kg

CK-A4090 is a sprag-type one-way clutch bearing designed for backstop and overrunning use in industrial machinery. It requires keyways on both inner race (shaft) and outer race (housing) for secure mounting and ships greased from the factory. Built from durable GCr15 chrome steel for long service life.

✅ Inner bore (d): 40 mm
✅ Outer diameter (D): 90 mm
✅ Width (B): ~28 mm
✅ Nominal Torque: 462 Nm
✅ Overrunning speeds: inner ~700 rpm; outer ~200 rpm
✅ Weight: ~0.87 kg
✅ Keyways: Outer 8x4 mm; Inner 6x2.8 mm
✅ Material: GCr15 chrome steel
✅ Delivery: Greased
✅ Pack Size: Single bearing

💡 What is a one-way clutch bearing and where is it used?

This handy, compact device provides one-way rotation control in many systems. - Handy backstop in conveyors, packaging lines, printers, and paper processing - Sprag-type engagement enables one-way drive and overrunning protection - Requires mounting keyways on both inner and outer races - Delivered greased, with GCr15 chrome steel construction