The specific production process of self-aligning roller bearings: raw materials - inner and outer ring processing, steel ball or roller processing, cage (stamping or solid) processing - assembly of self-aligning roller bearings - finished products of self-aligning roller bearings

The most critical steps in the production process are as follows:

① Forging process

The forging process is an important step in ensuring the reliability and service life of self-aligning roller bearings. After the raw materials are forged, they form a blank of the self-aligning roller bearing ring. At the same time, the organizational structure of the raw materials becomes more dense and streamlined, which can improve the reliability and service life of self-aligning roller bearings. In addition, the quality of forging technology will directly affect the utilization rate of raw materials, thereby affecting production costs.

② Heat treatment process

The heat treatment process is the high-temperature treatment of the forged and machined self-aligning roller bearing ring, which directly affects the uniformity of carburization in the self-aligning roller bearing ring, can improve the wear resistance and hardness of the self-aligning roller bearing, and is also an important link that affects the reliability and service life of the self-aligning roller bearing.

③ Grinding process

After heat treatment, the self-aligning roller bearing ring still needs to be ground, which is an important link to ensure the accuracy of the self-aligning roller bearing. After grinding, the production process of self-aligning roller bearing ring is basically completed.

Process flow of inner and outer rings of self-aligning roller bearings: bar - forging - turning - heat treatment - grinding - ultra precision machining - final inspection of parts - rust prevention and storage

The main production equipment includes: cold rolling machine, fully automatic ball self-aligning roller bearing inner circle grinder, quenching line, annealing furnace, press, CNC lathe, self-aligning roller bearing grinder, inner groove grinder, outer groove grinder, high-precision horizontal axis circular table surface grinder, CNC milling machine, centerless grinder, high-precision through grinding centerless grinder, precision channel ultra precision grinding machine, inner surface CNC grinder, CNC reciprocating double end face grinder High temperature and high-speed self-aligning roller bearing testing machine, heat treatment production line, and quality inspection equipment.

The basic production process of rolling self-aligning roller bearings

Due to differences in the type, structural type, tolerance level, technical requirements, materials, and batch size of rolling self-aligning roller bearings, their basic production process is also not completely the same.

The machining process of the main components of various self-aligning roller bearings:

① The processing process of the ring: The processing of the inner and outer rings of the self-aligning roller bearing varies depending on the raw materials or blank form. The process before turning can be divided into the following three types. The entire processing process is: bar or tube material (some bars need to be forged, annealed, or normalized) - turning - heat treatment - grinding - precision grinding or polishing - final inspection of parts - rust prevention - storage - (to be matched with the set)

② The processing process of steel balls also varies depending on the state of the raw materials. The process before grinding or polishing can be divided into the following three types. The process before heat treatment can also be divided into the following two types. The entire processing process is: cold stamping of bars or wires (some bars require ring punching and annealing after cold stamping) - grinding, rough grinding Soft grinding or light ball - Heat treatment - Hard grinding - Fine grinding - Fine grinding or grinding - Final inspection grouping - Rust prevention and packaging - Storage (to be matched with a set).

③ The processing process of rollers varies depending on the raw materials. The process before heat treatment can be divided into the following two types. The entire processing process is: bar turning or wire cold heading followed by ring and soft grinding - heat treatment - string soft points - rough grinding outer diameter - rough grinding end face - final grinding end face - fine grinding outer diameter - final grinding outer diameter - final inspection grouping - rust prevention and packaging - storage (to be matched)

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

1. Sheet metal → Cutting → Punching → Stamping forming → Shaping and precision processing → Pickling or shot peening or cross polishing → Final inspection → Rust prevention, packaging → Storage (to be matched with a set)

2. Processing process of solid cages: The processing of solid cages varies depending on the raw materials or burrs. Before turning, it can be divided into the following four types of blanks. The entire processing process is: bar material, pipe material, forging, casting - inner diameter, outer diameter, end face, chamfering - drilling (or pulling, boring) - acid washing - final inspection - rust prevention, packaging - storage (to be assembled and matched).

Assembly process of rolling self-aligning roller bearings

After passing the inspection, the components of the rolling self-aligning roller bearing, such as the inner ring, outer ring, rolling element, and retainer, enter the assembly workshop for assembly. The process is as follows:

Demagnetization and cleaning of parts ->grouping and selection of inner and outer rolling grooves ->fitting ->checking clearance ->riveting the cage ->final inspection ->demagnetization and cleaning ->rust prevention and packaging ->entering the finished product warehouse (boxing and shipping).