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What is the difference between ball bearings and roller bearings?
Release time：
2023-09-21 08:36
Source：
Generally speaking, ball bearings and roller bearings can be divided into two categories: radial bearings and thrust bearings. The fundamental difference between roller bearings and ball bearings lies in their basic design. The main difference between roller bearings and ball bearings is whether the rolling element is a roller or a ball. Roller bearings use tapered rollers, needle rollers, self-aligning rollers, and cylindrical rollers. Radial ball bearings use circular balls as rolling elements. Both roller bearings and ball bearings may have separators or cages.
Due to the fact that most types of radial bearings bear a certain thrust load, while some thrust bearings can bear radial loads, there is no clear dividing line between the main groups. However, a major difference is that for bearings considered as radial ball bearings, their bearing capacity is given in the catalog as pure radial loads. For roller or ball thrust bearings, the bearing capacity is given as pure thrust load. If your application requires pure radial loads, then your preferred choice is radial ball bearings. If your application has both radial and thrust loads, you can choose the optimal bearing based on the given basic rating.
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Working principle of ball bearings
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What is the difference between tapered roller bearings and ball bearings?
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