Cookies on the SKF website

SKF uses cookies on our websites to align the information shown as closely as possible to our visitors’ preferences, such as country and language choices. Will you accept SKF cookies?

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.

SKF logo