1 starting torque 
 So that a bearing ring or gasket fixed relative to the other rotating ring or gasket required starting torque.
2 rotation torque
 Rotation bearing rings or gaskets, to prevent another movement required torque.
3 radial load
Acting on the vertical axis line direction of the load bearing.
4 axial load
Role in the direction parallel to the axis of the bearing load.
5 static load 
When the bearing rings or gaskets relative rotation speed is zero (or thrust bearing to the heart)or when the rolling elements no movement in the rolling direction (linear bearing), the role of the load on the bearing.
6 dynamic loads
When the bearing rings or gaskets relative rotation (to the heart or thrust bearings) or when the rolling elements in rolling direction of the movement (linear bearing), the role of the load on the bearing.
7 equivalent load
Theoretical load calculated using the general term, in specific situations, the load bearing role in the theory as to withstand the actual load.
8 radial (axial) basic static load 
Raceways and rolling bodies and the total amount of permanent deformation of the corresponding radial static load (center axial static load). If the zero-load, roller and roller (roller bearings) or assumed to be normal for the bus (full contact), the maximum contact stress, the rolling element and raceway contacts generated at the total amount of permanent deformation of rolling element diameter of 0.0001 times. For single row angular contact bearings, radial load rating bearing rings relative to each other for the cause of pure radial displacement of the radial component of the load.
9 radial (axial) basic dynamic load
Constant radial load (constant axial load center), the load, the bearing can withstand 1 million revolutions in theory the basic rating life. For single row angular contact bearings, radial load rating of the bearing rings relative to each other for the cause of pure radial displacement of the load weight.



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