Assembly process of NTN bearing inner ring

1. Bearing shoulder fixing
The inner ring of the NTN bearing is axially fixed by means of shoulder and interference. Suitable for supporting structures fixed at both ends. The structure is simple and the outer dimensions are small.
2. The circlip of the bearing is fixed
The inner ring of the bearing is axially fixed by the shoulder and the lock nut. Can withstand small bidirectional axial loads. The axial structure is small in size.
3. The bearing lock nut is fixed
The inner ring of the NTN bearing is axially fixed by the shoulder and the lock nut. And the retaining washer is anti-loose, safe and reliable, suitable for high speed and heavy load occasions.
4. The end face thrust washer of the bearing is fixed
The inner ring of the NTN bearing is axially fixed by the shoulder and the shaft end retaining ring. The shaft end retaining ring is screwed to the shaft end. The fixing screws should have a locking device.
Applicable to occasions where the shaft end is not suitable for cutting threads or space is limited.
5. The bearing sleeve is fixed
The axial fixation of the inner ring of the bearing is achieved by the radial dimension of the inner bore of the adapter sleeve being compressed and clamped onto the shaft.
6. The bearing's withdrawal sleeve is fixed
The withdrawal sleeve is clamped in the same way as the adapter sleeve. However, due to the special nut, the NTN bearing is easy to load and unload, and is suitable for fixing the double-row spherical bearing with large radial load and small axial load on the optical axis.
Bearing assembly process
The ground parts are inspected and stored in the assembly library. If the production organization is proper, the parts can also be directly sorted into the assembly room. The bearings are not stored in the warehouse, and the NTN bearings reduce the production cycle. The assembly warehouse manager must not only keep the bearing parts in good condition, but also grasp the dimensional tolerance of the ferrule rolling and the dimensional tolerance of the rolling element. Do the statistics, issue the part tolerance order, organize the supplementary parts, and assemble the parts.
For small batch suction production, especially in the case of large dispersion of rolling elements and raceways, the bearing is often produced by first grinding a ferrule and sorting the ferrule size tolerance, and then rolling element size. Deviation state, the range of the grinding dimension of the other ring of the bearing is determined to obtain a higher closing ratio. Under normal circumstances, the final grinding outer race is close to the final process of the outer ring grinding process, and the custom tolerance is better placed on the outer ring.