Precision Spindle Bearing
steel balls(B719C/B70C/B72C/B719E/B70E/B72E)

Spindle bearings are single row angular contact ball bearings comprising solid inner and outer rings and ball and cage assemblies with solid window cages.

Spindle bearings have restricted tolerances. They are particularly suitable for where requires very high guidance accuracy and speed capacity, especially for slewing part of the main spindle of machine tool.
Angular contact ball bearings have raceways in the inner and outer rings that are displaced with respect to each other in the direction of the bearing axis. This means that they are designed to accommodate combined loads, i.e. simultaneous radial and axial acting loads.

	Bearings for universal matching
-	basic design bearings(not universally matchable) can be only be used for arrangements with single bearings

Designation bearing sets

Bearing sets consist of bearings with matched bore and outside diameters. The first letter refers to the number of bearings in a set.

D 2 bearings Duplex

T 3 bearings Triplex

Q 4 bearings Quadroplex

Ready-to-mount bearing sets feature a defined order of bearings. The second (and sometimes third) letter refers to the arrangement of the bearings within the set:

B back-to-back arrangement

F face-to-face arrangement

T tandern arrangement