miniature ball bearings Make two groups to purpose

Make two groups to purpose, is the deviation compensation can be considered, the rotating precision bearings on both ends of the respective even increased, and the bearing seat hole and both ends of the trunnion coaxiality error are partially eliminated. The mating surface to surface  miniature ball bearings strengthening measures, such as sandblasting, precision plunger diameter slightly larger plug a hole, are beneficial to improve matching precision. Large and outer bearing surplus volume, in order to convenient installation, there also will be the outer circle and the bearing seat hole is made with a small taper, the installation on two square taper fit, and cover with control outer  slewing bearing ‍ ‍advance amount, the amount of interference in the predetermined range, while the end cover end face friction resistance of the outer end face also contribute to the fixed ring, to prevent the occurrence of peristalsis. This installation method is particularly convenient for bearing the vertical installation.

According to the load direction, acting on the cross roller bearing inner ring and the outer ring of the nature and which side of the ferrule is rotating, the load can be divided into the rotating load, static load or non directional load. Under the rotating load and non directional loads shall be taken with the (static ring interference fit), static load bearing ferrule, desirable transition fit or movable fit (clearance). The bearing load

Large or withstand the impact load, vibration, the interference must be increased. The hollow shaft, thin-wall bearing box or light alloy, plastic housings, also need to  high speed bearing ‍increase the amount of interference. The requirement to maintain high rotation, should be used in high precision bearings, and improve the dimensional precision of shaft and bearing box, to avoid interference is too large. If the interference is too large, may make the geometry precision bearing shaft or bearing box

Geometry, to the detriment of the rotating precision bearings.                                                                                                   ‍