Abstract
This paper presents a new model for calculation of load for the most loaded rolling element in a rolling bearing with internal radial clearance. The calculation is based on a so-called load factor. By multiplying this factor by the value of the external radial load, the load transferred by the most loaded rolling element of the bearing is obtained. The values of the load factor are shown in the tables and diagrams, which makes the model very suitable for practical use. The load factors are shown for a ball bearing as well as for a roller bearing. The model considers two support positions of the inner ring on an even and odd number of rolling elements. The new model was compared with the most commonly used models up to now. The results showed greater accuracy of the studied model.
Highlights
One of the most important tasks of rolling bearings is to transfer load from the rotary elements to the supports
The analysis presented in the resulting papers [18,19,20,21] shows that among the most important factors determining the degree of load distribution non-uniformity are a radial clearance and a bearing deflection
[27], and through this parameter, rolling elements is directly dependent on the internal radial clearance [27], and through this rolling elements is directly dependent on the internal radial clearance
Summary
One of the most important tasks of rolling bearings is to transfer load from the rotary elements to the supports. This takes place through a certain number of rolling elements, from the rotating ring to the stationary one. It is known that the calculation of the load distribution on the rolling elements is very complicated. It is nonlinear and a statically indeterminate problem, which requires that in addition to the static equilibrium equation, additional conditions have to be introduced, based on the connection between the contact stress and deformation, according to Hertz’s contact theory [1]. Because of its significant importance, especially for engineering practice, a large number of authors are dealing with methods to simplify the calculation of the internal load distribution of rolling bearings, and are trying to develop as simple but sufficiently accurate methods as possible
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