[Shaoguan NTN Bearing agents in China] (KOYO Bearing distributor) 
 [Shaoguan NTN Bearing agents in China] (KOYO Bearing distributor) 

 An angular contact ball bearing installation 
 Install than angular contact ball bearings, deep groove ball bearings, mostly installed in pairs, and the need to pre-load. Install good allows host precision, bearing life greatly improved; Otherwise, not only precision fail to meet requirements, life will be affected. 
 A. Installation in the form 
 Installation in the form of the angular contact ball bearings, back to back, face-to-face and tandem arrangement of three kinds. Back to back (relatively) installation of two bearing the wide end, the bearing contact moldings along the rotation axis direction of diffusion, can increase the rigidity of the radial and axial bearing angle, resistance to deformation; face to face (the narrow end of the two bearings relative) When installing the bearing contact moldings convergence toward the axis of rotation and its bearing angle rigidity is small. Stretched out due to the inner ring of the bearing outer ring, when two bearing outer ring is pressed to the outer ring of the original gap to eliminate, and can increase the bearing pre-load; arranged in series (two bearing the wide end in one direction) to install The bearing contact moldings parallel, allows both bearings share the load of work in the same direction. The use of this form of installation, in order to ensure the axial stability of the installation bearing two pairs are arranged in series in the two ends of the shaft is installed on the set. 
 [Shaoguan NTN Bearing agents in China] (KOYO Bearing distributor) 
 (2) access to pre-load 
 Pre-load through the grinding of a ferrule end face of the bearing, or two different thickness of the spacer on bearing one pair between the outer ring, the bearing clamped together, so that the ball and raceway close contact. 
 The size of the pre-load on the bearing life according to the information, when the bearing assembly. 012mm amount of interference, the life of a 38% reduction, 0 016mm over the amount of interference, the life of a 50% reduction ; 0. 004mm clearance in the bearing assembly, the life of a significant decline in 0. 008mm gap, the life of a 70% decline. Therefore, a reasonable choice for the size of the pre-load is very important. General high speed should be selected small pre-load, low speed should be selected large pre-load. At the same time, pre-load should be slightly larger than or equal to the axial load. 
 Pairs of bearings, each bearing Click to computing. Where "+" sign for the axial working load is reduced so that the original pre-public surplus value that a bearing;