Bearing data

Dimension
standards
  • metric bearings: not standardized 
  • inch bearings: cones and cups dimensions of many inch bearings → AFBMA Standard 19 (ANSI B3.19);
    ANSI/ABMA Standard 19.2 has replaced the above standard, but does not include dimensions.
Tolerances

For additional
information
Tolerances
  • dimensional tolerances (except for width T): Normal
  • geometrical tolerances: P5
  • values: ISO 492 (table 1, table 2, table 3)
Internal
clearance


For additional
information
Internal clearance
  • bearings are ready-to-mount units with an axial internal clearance adapted for the actual application
  • bearing components should be arranged in the prescribed order and may not be interchanged with components of another bearing
  • designations with suffix C followed by a three- or four-digit number expresses mean value of the axial internal clearance in μm
    (for clearance values not listed in the product tables, contact SKF)
Permissible
misalignment

Misalignment increases bearing noise and reduces bearing service life.

If misalignment cannot be avoided, SKF recommends using TDI design bearings (face-to-face arrangement). For information, contact the SKF application engineering service.

SKF logo