Static Equivalent Loads
Static equivalent load is a hypothetical load that, when acting on a bearing that is stationary, rotating very slowly or oscillating, produces the previously described maximum stress between the most heavily stressed rolling element and bearing raceway under actual conditions. The static radial load passing through the bearing center is taken as the static equivalent load for radial bearings, while the static axial load in the direction coinciding with the central axis is taken as the static equivalent load for thrust bearings.
(a) Static equivalent load of radial bearings
The greater of the two values calculated from the following equations should be adopted as the static equivalent load of radial bearings.
where |
|
(b) Static equivalent load of thrust bearings
where |
|
When  , this equation becomes less accurate.
The values of  and  for two equations are listed in the bearing tables.
The static equivalent load for thrust roller bearings with  is . |
