The four-point contact ball bearing has a contact angle of 30°, and its inner ring can be separated into two parts. After radially pushing the inner ring and outer ring, the steel ball and the inner and outer ring raceway surfaces form four-point contact. A single set of bearings can bear two-way axial load, and is generally used in a two-point contact state under pure axial load or large combined load application conditions of axial load. |
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