Bearing data

Dimension
standards
Boundary dimensions: ISO 15:2011

Except for:
  • Bearings with an extended inner ring:
    DIN 630, part 2, withdrawn in 1993
Tolerances

For additional
information
(→ Tolerances)
Normal

Except for:
  • Bearings with an extended inner ring:
    bore to tolerance class JS7 (table 1) in accordance with ISO 286-2:2010

Values: ISO 492:2014 (table 2)
Internal clearance

For additional
information
(→ Bearing internal clearance)
Normal, C3
Check availability of C2 (cylindrical bore)

Except for:
  • Bearings in the 130 and 139 series:
    C3
  • Bearings with an extended inner ring:
    ranging from the minimum value of C2 to the maximum value of Normal

Values: ISO 5753-1:2009 (table 3)
Values are valid for unmounted bearings under zero measuring load.
Misalignment
Guideline values for normal operating condition: (table 4). Whether these values can be fully exploited depends on the design of the bearing arrangement and the type of external seal.
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