The three basic parameters that are often used in the design of rolling bearings are: the basic rated dynamic load Cr (radial) or Ca (axial) that meets certain fatigue life requirements; the basic rated static strength Cor (diameter) that meets certain static strength requirements direction) or Coa (axial) and limiting speed No to control bearing wear.

What is the bearing static load rating?

The basic static load rating of rolling bearings (radial Cor, axial Coa) refers to the imaginary radial load or central axial static load that is equivalent to a certain contact stress at the contact center of the bearing's maximum load rolling body and the raceway.

The rated static load is determined under the assumed load conditions. For radial bearings, the rated static load refers to the radial load, and for radial thrust bearings (angular contact ball bearings), it refers to the load that loads the half-circle raceway in the bearing. The radial component, for thrust bearings, refers to the central axial load.

That is to say, the radial basic static load rating and axial basic static load rating of the bearing refer to the maximum load that the bearing can bear when it is static or rotating.

The carrying capacity of deep groove ball bearings when they are stationary or slowly rotating (speed n≤10r/min) is the rated static load.

What is the bearing dynamic load rating?

The dynamic load rating of the bearing refers to the constant radial load (constant axial load) that the rolling bearing can withstand theoretically. Under the action of this load, the basic rated life is 100W revolutions. Ability. The basic dynamic load ratings of radial bearings and thrust bearings are inversely called radial basic dynamic load ratings and axial basic dynamic load ratings, represented by Cr and Ca.

The bearing capacity of the groove ball bearing when it is rotating (speed n>10r/mim) is the basic rated dynamic load.