The most typical type of radial ball bearings can support axial loads in both directions in addition to radial loads. Some types have a flange or retaining ring on the outer ring to facilitate axial positioning when mounting the housing.
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NMB Parts No. R-4SS Metric or Inch Inch ISO/JIS - Material of Rings Chromium Steel Ring Type [Radial] basic type Inner Diameter(d)
[mm]6.350 Inner Diameter(d)Tolerance
[mm]Compliant with JIS standards Outer Diameter(D)
[mm]15.875 Outer Diameter(D)Tolerance
[mm]Compliant with JIS standards Width(B)
[mm]4.978 Width(B)Tolerance
[mm]Compliant with JIS standards Chamfer(rs min)
[mm]0.300 Reference Diameter Outer(Lo)
[mm]13.030 Reference Diameter Inner(Li)
[mm]8.200 Ball Size(DW)
[mm]2.3813 Ball Complement(Z) 8 Dynamic Load Rating(Cr)
[N]1470 Static Load Rating(Cor)
[N]599 Inner Diameter(d)
[in]0.2500 Outer Diameter(D)
[in]0.6250
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Technical Data
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Engineering Information
Technical Data
- Bearing Types
- Names and Symbols
- Part Numbering System
- Selecting Process
- Application Structure, Required Performance, Environment
- Material
- Shield and Seal
- Retainer
- Load rating and rating life
- Tolerance and precision grade
- Measurement methods
- Internal Clearance
- Fits
- Designs of shaft and housing
- Preload
- Displacement
- Torque
- Vibration by forced rotation
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