R2
SIAIF R2
Type

Small ball bearings and miniature ball bearings

Model：R2
Thickness(mm)：3.967
Inner diameter d：3.175
Outer diameter D：9.525
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Detailed information

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Bearing code
  • OpenR2-5
  • Dust cover typeR2-5ZZ
Dimensions
  • d3.175
  • D7.938
  • B2.779
  • B 1 3.571
  • r (Minimum)0.1
Load rating (N)
  • Cr560
  • Cor179
Load rating {kgf}
  • Cr57
  • Cor18
Limit speed(rpm)
  • Grease lubrication open type Z·ZZ60000
  • Oil lubricated open type Z67000
Installation size (mm)
  • d a (Minimum)4.0
  • d b (Maximum)4.3
  • Da (Maximum)7.1
  • Db (Minimum)7.3
  • r a (Maximum)0.1
weight(g) (Refer to)
  • Open0.55
  • Dust cover type0.72

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