Bearing data

Dimension
standards
Boundary dimensions: ISO 15:2011
Tolerances

For additional
information
(→ Tolerances)
Normal
Higher accuracy (up to P5) for some bearings on request

Values: ISO 492:2014 (table 1, table 2, table 3)
The aluminium-oxide layer on the external surfaces of either the inner or the outer ring does not affect accuracy.
Internal
clearance

For additional
information
(→ Internal clearance)
C3
Values: ISO 5753-1:2009 (table 4)

Values are valid for unmounted bearings under zero measuring load.
Misalignment

Identical to standard bearings (→ Bearing data)
Electrical
properties
The standard INSOCOAT layer provides protection against AC and DC currents. The minimum ohmic resistance is 50 MΩ at 1 000 V DC. Tests at SKF have shown that electrical breakdown of the insulating layer occurs above 3 000 V DC.
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