TC series Grease-Free Bearings

The TC series is suitable for environments where the grease can not be used, such as a vacuum or high temperature application.
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  1. Operating temperature is up to 300℃ /572°F, except sealed type.
  2. Smooth rotation by low torque, except 2RS type.
  3. Usable in environments where grease can not be used, by special coating on retainer.

Product Specifications


Standard Specifications
Inner and Outer Rings AISI 440C
Balls*1 AISI 440C
Retainer AISI 304+Special Coating
Shield AISI 304
Seal*2 Nitrile rubber
Radial clearance C4

The following special specifications are also available.
*1 Ceramic balls (Silicon Nitride Si3N4
*2 Fluorine rubber seal



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●Vacuum apparatus, LCD and semiconductor manufacturing equipment, film manufacturing equipment, other equipment used in high temperature.