Four Point Contact Ball Bearings
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Four-point contact ball bearings is one type of separable bearings, the cross-section of inner and outer ring raceway is peach shape. The contact between steel balls and rings is four-point contact in both no-load or unidirectional radial load conditions. While there is two-point contact for unidirectional radial load, and can support biaxial load. While the four-point contact can support torque load. In addition, the double inner ring(outer ring) of four-point contact ball bearings is equipped with corresponding bearings, which can’t be replaced even for bearings with the same dimension. Four-point contact ball bearings are generally suitable for many industries including industrial pumps, compressors, petrochemical machineries, etc.
Features- The Four-point contact ball bearings are designed with separable structure. One single bearing can replace the angular contact ball bearing which is combined from the front or back.
- Compared with other types of bearings, when the radial clearance of four-point contact ball bearings keep same, however, it offers lower axial clearance and high limiting rotation speed.
- Instead of providing initial lubricants, four-point contact ball bearings offer grease lubricant or oil lubricant to lower wear and reducing maintenance cost.
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