Date: 2013-08-20

Difference between dynamic load rating of the bearing and static load rating

1, rated radial (or axial) load: refers to the theory of rolling bearings can withstand the constant radial load (or constant axial load). Bearings under the load of bearing rating life of 1 million cycles. This mainly reflected the capacity of bearing rolling fatigue resistance.
Radial basic dynamic load rating of the bearing and the thrust bearing, respectively called radial basic dynamic load rating and the basic dynamic axial load rating, represented by Cr and Ca.
2, radial (or axial) the basic static load rating: refers to the maximum load of rolling element and the Raceway contact centre with the following radial static load calculated contact stress (axial static load Center). For self-aligning ball bearings, 4600MPa; for other types of radial ball bearings and thrust ball bearings, 4200MPa; for radial and thrust roller bearings, 4000MPa.
In these contact stresses arising under the rolling element and the Raceway about permanent deformation of 0.0001 times times the rolling element diameter.
Bearings are subjected to static loads or at low speed under impact load, contact surfaces of the rolling elements and raceways produces local permanent deformation. The variation increases as the load increases, above a certain limit, will affect the normal rotation. Radial spherical plain bearings with thrust respectively the basic static load rating of the bearing for the axial and radial basic static load rating of basic static load rating, Cor and the Coa said.
Rated dynamic load and static load rating of the various manufacturers have different designs, its value also have large differences. Numerical separately documented in samples of various manufacturers. You are in the process of designing equipment, bearing the load bearing capacity is not the dynamic load rating of the bearing should be radial or axial load acting on the bearing load.

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