COLLETS FOR BETEX 63 and 64
There are 4 different pulling principles that can be applied, depending on bearing type.
To define the correct collet the following is mandatory:
Principle 1:
Grip on inner bearing ring. Bearing is dismantled in one act, from shaft and bearing housing.
Example: self-aligning ball bearings, four-point bearings and ball bearings with split inner ring.
Principle 2:
Grip on rollers, independent of number of rolls. Also when bearing is flush fit.
Example: wheel bearings, tapered bearings.
Principle 3:
Grip on bearing inner ring.
Example: tapered roller bearings.
Principle 4:
Grip inside or behind bearing inner ring, or behind bearing outside ring.
Example: cylindrical roller bearing, lowest inner ring of the ball bearings, outside ring of the needle roller bearings, spherical roller bearings, NU-, NJ-bearing bushes, ABS-rings, bushings, gear wheels.