How are the steel balls installed in the bearing?

We have seen a lot of rolling bearings, but we do not necessarily understand its production process. Gold powder often asks curiously, how exactly are the steel balls in the rolling bearing installed? In fact, the principle is very simple, we will learn it today.

Rolling bearings are generally composed of ferrules (inner ring, outer ring), balls, seal rings and cages.

In the bearing industry, this process of placing the steel ball between the inner and outer rings is called 'assembly' or 'fitting'. The process is as follows:

A. Prepare the inner and outer rings, and place the inner ring on the side

B. Put in the steel balls

C. , use a ball distributor with small claws to evenly separate the steel balls

D, place the cage and rive the two cages together.

Does it feel like a sudden realization? In addition, in the actual I production, there are still full-loaded ones, generally with a ball-loading gap, and they are used less. It can be seen that there is a ball-loading gap on one side, and the steel balls are filled in from that gap, but this kind of bearing The ability to withstand axial loads is relatively small, and the use is relatively small.

Bearing production process:

Raw materials - inner and outer ring processing, steel ball or roller plus I, cage (stamping or solid) Processing - bearing assembly - bearing finished products.

The process flow of the inner and outer rings of the bearing:

Bar - blanking - forging - spheroidizing annealing - turning - heat treatment - Grinding - super-finishing - final inspection of parts - rust prevention and storage.

Processing of steel balls:

Cold punching of bar or wire (some bars need to be punched and annealed after cold punching)— - Filing, rough grinding, soft grinding or light ball - heat treatment - hard grinding - fine grinding - fine grinding or grinding - final inspection grouping - rust prevention, packaging - storage (to be assembled as a set).

The processing process of the roller:

pThe belt and soft grinding after the material car processing or wire cold heading - heat treatment - string soft spot - - Rough grinding outer diameter - Rough grinding end face - Final grinding end face - Fine grinding outer diameter - Final grinding outer diameter - Final inspection grouping - Anti-rust, packaging - storage (to be assembled in a set).

The machining process of the cage:

Bronze casting - inner diameter, outer diameter, end face, chamfering - drilling (or broaching, boring hole) - deburring - pickling - final inspection - rust prevention, packaging - storage .