Load rating of bearings
Load rating of bearings
(OP)
Can anybody tell me the difference between Basic static load rating of a bearing and the Maximum static load of the bearing? I have a bearing manufacturer's catalogue which only gives the maximum static and dynamic load the bearing can withstand. Do i assume it means basic static load rating?





RE: Load rating of bearings
The basic static load rating is the maximum radial or axial load the bering can sustain without permanent deformation.
"Bearings - Basic static-load rating is the maximum radial or thrust load a bearing can endure without excessive permanent deformation. Maximum deformation of rolling element or race that does not significantly degrade bearing performance is 0.0001 times the diameter of rolling element bearings. Equations for basic static load for standard bearings are given in Sections 9 and 11 of the AFBMA Standards. "
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RE: Load rating of bearings
The static load capacity of a bearing can vary slightly depending upon its degree of preload. A preloaded bearing will load share among the rolling elements more effectively than a bearing with clearance.
The dynamic load rating is intended to take into account many operating condition adjustment factors to establish a suitable load limit.
Good luck.
Terry
RE: Load rating of bearings
RE: Load rating of bearings
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(2B)+(2B)' ?
RE: Load rating of bearings
That equation only applies to certain types of bearings, within a certain ratio of radial to axial loads.
Also, be aware that basic load ratings, whether static or dynamic, must be adjusted for many factors such as mounting mis-alignments and structural stiffnesses.
Good luck,
Terry
RE: Load rating of bearings
RE: Load rating of bearings
Go to:
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and look on page 21 and forward.
If what you are doing is very general I would use 15% of the load rating.
Hope that helps.
RE: Load rating of bearings