Angular Contact & Tapered Axial Load
The effective load center of both angular contact ball bearings and tapered roller bearings is at the point of intersection of the shaft center line and a line representing the load applied to the rolling elements by the outer ring, as shown in the figure. This effective load center for each bearing is listed in the bearing tables. When radial loads are applied to these types of bearings, a component of load is produced in the axial direction. In order to balance this component load, bearings of the same type are used in pairs, placed face to face or back to back. These axial loads can be calculated using the following equation:
where
| F ai : |
Component load in the axial direction (N) |
| F r : |
Radial load (N) |
| Y : |
Axial load factor |
and 
are applied on bearings I and II respectively, and an external axial load 
is applied as shown. If the axial load factors are 
, 
and the radial load factor is X, then the equivalent loads 
, 
may be calculated as follows: 
