The CSK series is a family of wedge-type one-way clutches that integrates overrunning clutch functionality within a 62-series deep groove ball bearing. The design is intended to provide one-way rotation and locking in a compact envelope, with factory lubrication and basic dust protection for general industrial drivetrains.

Design and operating principle

The CSK series combines a wedge-type overrunning clutch with the support structure of a 62-series deep groove ball bearing. This arrangement allows the unit to transmit torque in one direction while permitting free rotation in the other, without the need for a separate bearing support in many applications.

Because the clutch is supplied with bearing support, installation and alignment are simplified. Units are pre-greased at the factory and include basic dust protection that blocks particles larger than 0.3 mm from entering the bearing and clutch areas.

Models and technical specifications

The range includes CSK..P and CSK..PP variants, which share the series’ integrated bearing construction and factory lubrication. The principal technical characteristics are summarized below.

Environmental limits and installation

The standard factory configuration is suitable for many general industrial operating conditions. For more demanding environments, the specification calls for targeted measures to preserve lubrication and sealing performance.

If operating temperatures remain above 50°C, an additional Nylos-type seal is recommended to prevent grease loss or performance degradation. At elevated temperatures, standard grease viscosity falls and sealing performance may decline, making the supplementary seal important for maintaining a physical barrier against leakage and external contaminants.

Lubrication options for demanding duty

The CSK series can be converted from grease to oil-bath lubrication for high-frequency or heavy-load applications. Oil-bath lubrication provides improved heat dissipation and lubrication in duties that generate higher thermal loads.

When changing the lubrication method, the sealing system must be checked for compatibility with oil. The CSK40 model is an exception within the range and does not follow the standard 62-series integration arrangement, so its specific technical drawings should be consulted during selection.

Frequently Asked Questions