VXB

CSK25 One-Way Clutch Bearing - Sprag Freewheel Backstop

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SKU: Kit8181
UPC: 00193019037461
Inner Diameter: 25mm
Outer Diameter: 52mm
Width: 15mm
Torque: 68 N.m

CSK25 One-Way Clutch Bearing - Sprag Freewheel Backstop
✔️ 25mm x 52mm x 15mm - Torque-Locking in One Direction

The CSK25 is a high-performance one-way clutch bearing designed to transmit torque in a single direction while allowing free rotation in the opposite. Utilizing a sprag freewheel mechanism, it acts as an overrun clutch or backstop in applications like conveyors, printing presses, hydraulic drives, and mining equipment.

✅ Type: One-way clutch (sprag freewheel / backstop)
✅ Inner diameter (ID): 25mm
✅ Outer diameter (OD): 52mm
✅ Width: 15mm
✅ Torque capacity: 68 N·m
✅ Application: Prevents reverse rotation during power loss
✅ Brand: VXB Bearing
✅ Quantity: 1 bearing

💡 How do sprag clutches maintain rotational integrity under reverse loads?
Sprag elements inside the bearing wedge between inner and outer races under reverse torque, locking the system instantly - delivering zero-backlash performance essential for safety in driven and load-holding systems.

Engineered to engage only when it matters - ideal for backstopping and overrunning applications.

💡 When is a one-way clutch bearing essential?
It’s critical in systems where back-driving could cause damage, product loss, or safety hazards - like conveyor belts on an incline or industrial machinery requiring unidirectional motion.

Customer Reviews

Based on 9 reviews
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J
James H.
One way bearing

VXB never lets me down. In looking for this special purpose bearing I expected it to either be proprietary or, if available, be very expensive. Neither was the case. I was able to get the one way bearing I needed for a very reasonable price. And quick shipping. I trust VXB for any bearing need.

m
moon
perfect fit

perfect fit

D
Ducker 7.
CKS25

Fixed my clay bird thrower better than new

i
ibewilmo
Great Service

To make an internal repair in My washing machine. What's great it was your bearing and my labor OR a two-hundred dollar transmission with seals extra and My labor. Then I saw that you also sell parts for R/C cars-a long time hobby of my high schooler. You'all will be hearing more from me.

R
Robin t.b.
I would buy again

install in a fan