The so-called bearing clearance, referring to the bearing is not installed on the shaft or bearing housing, the inner or outer ring side fixed, then they have not been fixed and either the radial or axial movement of the amount of movement. Under the direction of movement can be divided into the radial clearance and axial clearance.
The size of the clearance operation (known as work clearance) of the rolling bearing fatigue life, temperature, noise, vibration and affect performance.
Bearing clearance measurements, in order to ensure a stable measurement value, the general imposed on the bearing load of the specified measurement.
Therefore, the measured values than the true clearance (called the theory of clearance), an increase of elastic deformation generated by the measuring load.
For roller bearings, the elastic deformation can be neglected.
Install the front bearing internal clearance general theoretical clearance.