Combination Angular Contact Ball Bearing
Bearing For Main shaft of Machine Tools or Ball Screw Suport
Normally Single Row Angular Contact Ball Bearings are used as a combination of two or more bearings.
There are three types of combinations such as back to back(DB),face to face(DF) and tandem(DT), and clearance of matched set are already adjusted.
If high accuracy is required such as machine tool spindles
(JIS/ISO class 5 or higher), it is used with preload.