Selection of bearing size

The bearing 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. Both dynamic and static bearing load conditions have to be independently verified. Dynamic loads should be checked using a representative spectrum of load conditions on the bearing. The load spectrum should include any peak (heavy) loads that may occur on rare occasions. Static loads are not only those that are applied with the bearing at rest or at very low rotational speeds (n < 10 r/min) but should include checking the static safety of heavy shock loads (very short duration loads).
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