Bearing data


Metric bearingsInch bearings
Dimension
standards


Boundary dimensions: ISO 15:2011

Except for:
  • bearings with suffix X
  • bearings with prefix WBB1 
  • outer ring flange of flanged bearings:
    ISO 8443-2010
Boundary dimensions: ANSI/AFBMA Std. 12.2-1992

Except for:
  • outer ring flange of flanged bearings:
    ISO 8443-2010
Tolerances

For additional
information
(→ Tolerances)
Normal
P6 or P5 on request

Values: ISO 492:2014 (table 1, table 2, table 3)
Normal


Values: ISO 492:2014 (table 1)
Internal
clearance

For additional
information
(→ Bearing internal clearance)
  • Normal
  • Check availability of other clearance classes

Values: ISO 5753-1:2009 (table 5)

Except for:
Values are valid for unmounted bearings under zero measuring load.
Misalignment≈ 2 to 10 minutes of arc

The permissible angular misalignment between the inner and outer rings depends on the size and internal design of the bearing, the radial internal clearance in operation and the forces and moments acting on the bearing. As a result, only approximate values are listed here. Any misalignment increases bearing noise and reduces bearing service life.
MaterialFor information about Materials, refer to Materials for bearing rings and rolling elements or Stamped metal cages.
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