Selecting bearing unit size

The bearing unit size to be used for an application can be initially selected on the basis of its load ratings in relation to the applied loads and the requirements regarding service life and reliability. Values for the basic dynamic load rating C and the basic static load rating C0 are quoted in the product tables. 

The basic dynamic load rating is based on specifications determined in ISO 281:2007 while the basic static load rating is based on specifications determined in ISO 76:2006.

For selecting the bearing unit size for high temperature applications, refer to Loads and selecting bearing size.
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