The specific production process of the bearing: raw materials - inner and outer ring processing, steel ball or roller processing, cage (stamping or solid) processing - bearing assembly - bearing finished product.

In the bearing production process, the most critical are the following links:

1. Forging link

The forging link is an important link to ensure the reliability and life of the bearing. After the raw material is forged, the bearing ring blank is formed. At the same time, the structure of the raw material becomes denser and more streamlined, which can improve the reliability and service life of the bearing. In addition, the quality of the forging process will directly affect the utilization rate of raw materials, thereby affecting the production cost.

2. Heat treatment process

The heat treatment process is to perform high temperature treatment on the forged and machined bearing rings, which directly affects the uniformity of carburization in the bearing rings, which can improve the wear resistance and hardness of the bearing, and also affect the reliability and life of the bearing. important part.

3. Grinding process

The bearing ring after heat treatment also needs to be ground, which is an important link to ensure the accuracy of the bearing. After grinding, the production process of the bearing ring is basically completed.

The process flow of the inner and outer rings of the bearing: bar - forging - turning - heat treatment - grinding - super-finishing - final inspection of parts - rust prevention and storage

The main production equipment includes: cold rolling machine, automatic ball bearing internal grinder, quenching line, annealing furnace, press, CNC lathe, bearing grinder, inner groove grinder, outer groove grinder, high-precision horizontal axis table surface grinder, CNC Milling machine, centerless grinder, high-precision through-grinding centerless grinder, precision groove super-finishing machine, inner surface CNC grinding machine, CNC reciprocating double-end grinding machine, high temperature and high speed bearing testing machine, heat treatment production line and quality testing equipment, etc.

Basic production process of rolling bearings

Due to the different types, structures, tolerance levels, technical requirements, materials and batches of rolling bearings, their basic production processes are not exactly the same.

1. The processing process of the main parts of various bearings:

1. The processing process of the ferrule: The processing of the inner ring and the outer ring of the bearing varies according to the raw material or the form of the blank. The processes before turning can be divided into the following three types. The whole processing process is: Bar or tube (Some bars need to be forged, annealed and normalized) ---- turning processing ---- heat treatment ---- grinding processing ---- fine grinding or polishing ---- final inspection of parts ---- Anti-rust----storage----(to be assembled)

2. The processing process of steel balls, the processing of steel balls also varies according to the state of the raw materials. Among them, the process before filing or light balling can be divided into the following three types, and the process before heat treatment can be divided into the following three types: Two, the whole processing process is: cold punching of bar or wire (some bars need to be punched and annealed after cold punching) ---- file, rough grinding, soft grinding or light ball ---- heat treatment- ---Hard grinding---fine grinding---fine grinding or grinding---final inspection grouping---anti-rust, packaging---storage <to be assembled in a set>.

3. The processing process of the rollers The processing of the rollers varies according to the raw materials. The processes before heat treatment can be divided into the following two types. The whole processing process is: bar car processing or wire rod cold heading, string ring belt and soft grinding ----heat treatment----string soft spot----coarse grinding outer diameter----coarse grinding end face----final grinding end face----fine grinding outer diameter----final grinding outer diameter ----Final inspection grouping----Anti-rust, packaging----warehousing (to be assembled together).

4. The machining process of the cage The machining process of the cage can be divided into the following two categories according to the design structure and raw materials:

(1) Sheet → shearing → punching → stamping forming → shaping and finishing → pickling or shot peening or stringing → final inspection → rust prevention, packaging → storage (to be assembled in a set)

(2) The processing process of the solid cage: The processing of the solid cage varies depending on the raw materials or the damage. Among them, it can be divided into the following four types of blanks before turning. The whole processing process is: bar, Tube material, forgings, castings ---- inner diameter, outer diameter, end face, chamfering ---- drilling (or pulling hole, boring) ---- pickling ---- final inspection ---- Anti-rust, packaging - storage <to be assembled in a set>.

2. Assembly process of rolling bearing:

Rolling bearing parts such as inner ring, outer ring, rolling body and cage, etc., after passing the inspection, enter the assembly workshop for assembly. The process is as follows:

Parts demagnetization, cleaning → inner and outer rolling <groove> channel size grouping and sorting → fitting → checking clearance → riveting cage → final inspection → demagnetization, cleaning → rust prevention, packaging → entering the finished product warehouse (packing, shipping >.