CSK One-Way Clutch Bearing

CSK series one‑way clutch bearing includes standard smooth bore type and CSK‑P inner keyway type. Learn principle, selection guide and installation tips for conveyor textile packaging machinery. Factory bulk wholesale available.

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One‑Way Bearings

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CSK Series One‑Way Clutch Bearing

CSK one‑way clutch bearing is also known as overrunning clutch bearing. It enables free rotation in one direction and locks torque in reverse direction to prevent mechanical reverse rotation. It is widely used in light‑medium duty transmission equipment. There are two mainstream versions on market: standard CSK without inner keyway and CSK‑P with inner ring keyway for higher‑torque connection.

Working Principle

CSK one‑way clutch bearing adopts roller‑type clutch internal structure. Under spring preload, rollers are pressed between inner ring and outer ring raceway. When rotating in locking direction, rollers wedge tightly to transmit torque and prevent reverse rotation. While rotating in overrunning direction, rollers release and achieve free idling rotation.

CSK & CSK‑P Structure Comparison

Item	Standard CSK (Without Keyway)	CSK‑P (With Inner Ring Keyway)
Inner ring feature	Smooth inner bore, no key slot	Inner ring with standard key slot
Torque transmission	Depends on interference fit	Key connection for stable torque transfer
Applicable torque	Low‑medium torque	Medium‑high torque
Assembly way	Press‑fit installation	Key‑shaft matching installation
Typical usage	Conveyor roller, light‑duty equipment	Reducer, power transmission mechanism

Need quotation for CSK one‑way clutch bearing? Send us your model number, keyway type and order quantity, we will offer factory wholesale price for your reference.

Core Product Advantages

Stable Clutch Performance: Precision roller‑spring structure, reliable anti‑reverse locking effect for long‑time continuous work.
Dual‑type Options: Smooth bore and keyway bore versions meet different shaft connection requirements.
Compact Outline: Small installation space requirement, easy to replace and assemble.
Durable Chrome Steel: Whole bearing made of chrome steel, good wear resistance and long service life.

Main Application Industries & Equipment

Conveyor system, material conveying machinery
Packaging machinery, filling equipment
Textile machinery, weaving equipment
Small‑size speed reducers
Printing machinery, light‑duty transmission devices

Installation & Selection Reference

Check Points	Operation Reminder
Rotation direction	Confirm free rotation direction before mounting; wrong direction will lose locking function.
Shaft fit tolerance	Reasonable interference fit required, too loose will cause slipping failure.
Keyway matching	Select CSK‑P model when high‑torque output is required.
Assembly method	Press‑fit on outer ring only; avoid striking inner ring directly.
Working environment	Keep away from heavy dust, water and corrosive medium.

Frequently Asked Questions

Q: What is the difference between CSK and ordinary deep groove ball bearing?

A: CSK belongs to one‑way clutch bearing, it has overrunning anti‑reverse function. Ordinary deep groove ball bearing can rotate bidirectionally without locking capability, only similar in outer dimension.

Q: Can CSK one‑way bearing bear radial load?

A: It can bear limited radial load, mainly for torque overrunning and anti‑reverse, not recommended for heavy radial load conditions.

Q: Can we customize non‑standard CSK one‑way clutch bearing?

A: Our factory supports custom service for special bore size and special keyway, please send your technical drawing for evaluation.

Looking for complete dimension data? Please visit CSK complete model list page to view full size table of all specifications.

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Get Factory Wholesale Offer

We are professional Chinese bearing factory focusing on one‑way clutch bearing bulk supply.

Please prepare below information when sending inquiry:

Exact bearing model (CSK8 / CSK‑P20 etc)
With or without inner keyway
Required order quantity
Special requirement if any

Send your requirements now, we will reply competitive factory price within short time.

One‑Way Bearings

One‑way bearings are also known as overrunning clutch bearings. They realize free rotation in one direction and torque locking in the opposite direction, widely used to prevent reverse rotation and complete overrunning transmission for various mechanical equipment.

There are multiple product series for one‑way bearings on the market, including CSK series, CK‑A series, CK‑B series, ASNU series and other structural types. Different series differ in internal structure, bearing capacity and installation requirements. Our factory mainly supplies CSK series one‑way clutch bearings for bulk wholesale, other one‑way bearing models can be provided upon inquiry.

CSK Series One‑Way Clutch Bearing Main Features

Roller‑type clutch internal structure, stable locking performance
Two common versions: standard type without keyway, CSK‑P type with inner ring keyway
Compact structure, easy installation for limited mounting space
Adopt chrome steel material, suitable for long‑time industrial continuous operation

Typical Application Scenarios

Conveyor equipment, packaging machinery
Textile machinery, small‑size reducers
Printing machines, light‑duty transmission devices

Hot‑selling CSK Series Models

CSK8, CSK12, CSK15, CSK17, CSK20, CSK25, CSK30, CSK35, CSK40

To learn more about working principle, structural differences and selection tips, please go to CSK series technical introduction page.

View complete dimension parameters for each specification on CSK full model list page.

We are a professional Chinese bearing factory. We support bulk order wholesale for one‑way bearings. Please send your required model and quantity to get competitive factory price.

PRODUCT TESTING

Bearing Forging

Bearing Annealing

Turning Process

Quenching

Bearing Assembly

Bearing Clearance Testing

Grease injection

Bearing Marking

One‑Way Bearings