Bearing data

Dimension
standards
Boundary dimensions: ISO 15

Except for:

  • Bearings with an extended inner ring
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

Values: ISO 492 (table 2)
Internal clearance

For additional
information
Selecting internal clearance or preload
Normal, C3

Check availability of C2 (cylindrical bore only)
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 (table 3)
Values are valid for unmounted bearings under zero measuring load.
Permissible misalignment
Guideline values for normal operating condition (→ product table). Whether these values can be fully exploited depends on the design of the adjacent components, such as external seals.

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