Improving workability by mounting with set screw and no need for collars to fix or locate bearings.
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  1. Secure fastening by Set screw prevents creeping between shaft and bore
  2. Free from abrasion powder caused by creeping
    Suitable for use in such environment like clean room where powder dust is not allowed
  3. Heat-resistant temperature of standard specifications is the same as SS series

Product Specifications

Standard Specifications
Inner and Outer Rings AISI 440C
Balls*1 AISI 440C
Retainer AISI 304
Shield AISI 304
Set screw AISI 304 equivalent
Lubricant*2 Heat-resistant grease

The following special specifications are also available.
*1 Ceramic balls (Silicon Nitride Si3N4)
*2 Chemical- and heat-resistant fluorine grease, food grade grease, and other special greases



Food processing machinery, cleaning equipment, LCD and semiconductor manufacturing equipment, carrier device in watery environment, other equipment used in environments with high temperatures and high humidity.


Please refer to the chart for the tightening torque.Too much torque may damage the bearing.Adhesive bond is not recommended that may increase the tightening force and result in the breakage of bearing.

●Recommended tightening torque

Set screw size Tightening torque N・m
M3 0.7
M4 1.8
M5 3.0
M6 4.0