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What is the bearing rated load?
May 08, 2017

I. Bearing static LOAD: Bearing in the following conditions, the basic rated static load should be used to calculate the C0, low rotational speed (general n<10 r/min) slowly reciprocating swing, in the load long time to maintain static, for rotating (under dynamic stress) or static state bearings, only in a short time load, also must check its related safety factor, including impact load or maximum load. The basic rated static load ISO 76:1981 standard is equivalent to the central position of the heaviest load rolling body and the raceway contact, which calculates the contact stresses:

Automatic self-aligning ball Bearing is 4600MPA

All other ball bearings are 4200Mpa

All roller bearings are 4000Mpa

Under this stress can cause the permanent deformation of the rolling body and the raceway, about 0.0001 of the diameter of the scroll body. For radial bearings, the load is a purely radial load; for thrust bearings, it is the axial load acting on the bearing center.

Check bearing static load: Refers to calculate static load safety factor, it is defined as: s0=C0/P0 type:

C0 = basic static load rating, KN

P0 = equivalent static load, kn

S0 = static load safety factor

When calculating the equivalent static load, the maximum load that may occur should be put into the formula.

Second, the dynamic load of the bearing: basic rated dynamic load C is to calculate the bearing under dynamic stress, that is, bearing under load. The expression is shown to meet the ISO 281:1990 basic rating Life of 1000000 rpm bearing loads. The size and direction of the load is assumed to be unchanged. For radial bearings, the load is a purely radial load, and the thrust bearing is the axial load acting on the bearing center.


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