Bearing data

Dimension standardsBoundary dimensions: ISO 104:2002

For additional information (→ Tolerances)
Total height H:
  • for basic design bearings tolerance at least 50% tighter than ISO standard
  • for SKF Explorer bearings tolerance 75% tighter than ISO standard

Values: ISO 199:2014 (table 1)
MisalignmentThe permissible misalignment is reduced as the load increases.

Guideline values for misalignment and rotating shaft washer relative to the housing washer: table 2.

Whether these values can be fully exploited depends on the design of the bearing arrangement, the external sealing design, etc.

When designing bearing arrangements with rotating housing washer in combination with misalignment or when the shaft wobbles relative to the housing, contact the SKF application engineering service.
Friction, starting torque, power loss
Frictional moment, starting torque and power loss can be calculated as specified under Friction, or using the SKF Bearing Calculator.

For temperature and/or cooling requirement calculations in large bearings (dm > 400 mm)1), vertical shafts and fully submerged conditions, contact the SKF application engineering service.
  1. 1)dm = bearing mean diameter [mm]
                 = 0,5 (d + D)
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