R4B
SIAIF R4B
Type

Small ball bearings and miniature ball bearings

Model：R4B
Thickness(mm)：4.978
Inner diameter d：6.35
Outer diameter D：15.875
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Detailed information

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Bearing code
  • OpenR4B
  • Dust cover typeR4BZZ
Dimensions
  • d6.350
  • D15.875
  • B4.978
  • B 1 4.978
  • r (Minimum)0.3
Load rating (N)
  • Cr1610
  • Cor660
Load rating {kgf}
  • Cr164
  • Cor68
Limit speed(rpm)
  • Grease lubrication open type Z·ZZ38000
  • Oil lubricated open type Z45000
Installation size (mm)
  • d a (Minimum)8.4
  • d b (Maximum)8.4
  • Da (Maximum)13.8
  • Db (Minimum)13.8
  • r a (Maximum)0.3
weight(g) (Refer to)
  • Open4.5
  • Dust cover type4.43

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