In addition to being classified by structure, rolling bearings can also be classified according to their nominal outside diameter: miniature bearings (bearings with nominal outside diameter D≤ 26mm), small bearings (bearings with nominal outside diameter 26mm<D<60 mm), small and medium-dimensiond bearings (bearings with nominal outside diameter 60mm≤D<120mm), medium and large-dimensiond bearings (bearings with nominal outside diameter 120mm≤D<200mm), large bearings (bearings with nominal outside diameter 200mm≤D≤440mm), extra-large bearings (bearings with nominal outside diameter 440mm<D≤2000mm), and heavy-large bearings (bearings with nominal outside diameter D>2000mm).

At present, comprehensive classification is used widely, which based on the load direction, rolling element type, and whether they can be self-aligning, etc, it divides rolling bearings into deep groove ball bearings, cylindrical roller bearings, needle roller bearings, self-aligning ball bearings, angular contact ball bearings, tapered roller bearings, self-aligning roller bearings, thrust ball bearings, thrust cylindrical roller bearings, thrust needle roller bearings, thrust angular contact ball bearings, thrust tapered roller bearings, thrust self-aligning roller bearings, etc.

The above briefly introduces the classification of rolling bearings. Welcome to leave a comment to explore other classification.