In ball bearings, the balls do indeed touch both races, which facilitates their rotation. The design allows for movement without significant sliding, although real-world conditions may introduce some sliding due to deformation or angular misalignment. This is particularly relevant for applications requiring thrust loads, where balls are preferred over roller bearings. Understanding these dynamics is crucial for optimizing bearing performance.
PREREQUISITESMechanical engineers, designers of rotating machinery, and anyone involved in the selection and application of bearings in engineering projects will benefit from this discussion.
DecayProduct said:Do the balls in a bearing actually touch both races? If so, how does the thing turn? Won't the balls be moving in different directions at each race, and therefore dragging against one?