Production characteristics of rolling bearing parts

Compared with general mechanical parts, the bearing parts are short and thin rotating surface bodies. The rotating body determines that the processing machine is relatively simple, most of them are lathes and grinding machines; short and thin determines the axial rigidity, axial deformation can be Neglected, the radial stiffness is poor, and the tightening method during processing should have special considerations.

Although the rolling bearing parts have a simple structure but high technical requirements, they have the following processing characteristics:

Precision machining

Most of the surface of the bearing parts is ground. The grinding dimensions and geometrical accuracy are in μm. In particular, the raceways and rolling elements of the ferrule are more precise and require super finishing or grinding.

2. Multi-process processing

Bearing parts are required to be high and production processes are inevitable. General bearing production requires 20 to 40 processes, and more than 70.

3. Forming processing

The working surfaces of the bearing parts are all rotary forming surfaces, which are suitable for processing by molding. For example, the forging and rolling of the ferrule raceway are processed by forming tools or anti-profile plates.

In addition, most of the bearings are standardized products. The bearings of the same type require a large amount. In order to improve productivity, reduce costs, ensure quality, and widely adopt new technologies and improve mechanization and automation, bearing companies generally follow bearing models and varieties. For mass production, even special automated lines or lines can be built for production.

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