The market requirements for various mechanical devices and instruments using pillow block bearings are increasingly stringent, The conditions and performances required for the pillow block bearing are becoming more and more diversified. In order to select the most suitable pillow block bearing from a large number of structures and sizes. It needs to be studied from various perspectives. In the selection of bearings, it is generally considered that the arrangement, installation and dismount of the bearings, the allowable space and size of installation of the pillow block bearings, and the marketability of the bearings determine the bearing structure. Secondly, the bearing size is determined by comparing the design life and durability limit of various machines using bearings.
When selecting bearings, the fatigue life of bearings is often only considered, The influence of grease aging on bearing life, wear and noise also needs to be fully considered. Moreover, according to different purposes, it is necessary to consider the requirements of accuracy, bearing clearance, cage structure, grease, etc. However, there is no certain order and rule in the selection of the external spherical bearing. The priority should be given to the conditions, performance and the most relevant matters required by the bearing, which is especially practical.
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