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Production technology of high-precision deep groove ball bearing

A technology of deep groove ball bearing and production process, which is applied in the field of mechanical manufacturing and processing, to achieve the effect of reducing surface roughness, eliminating internal stress and improving precision

Inactive Publication Date: 2014-11-26
ANQING YINTAI BEARING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is used to solve the requirements of high precision performance of bearings under the condition of high speed and low noise

Method used

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Experimental program
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Effect test

specific Embodiment approach

[0017] A production process of high-precision deep groove ball bearings, the process steps are as follows:

[0018] (1) Ferrule (inner ring and outer ring) processing steps: blanking; annealing the blank, the temperature is controlled at 500 ° C ~ 650 ° C, the preferred temperature is 600 ° C; turning, basically forming the blank; heat treatment: The heat treatment process is quenching treatment, the temperature is controlled at 600 ° C ~ 650 ° C, the preferred temperature is 620 ° C; then cold treatment is performed, the temperature is controlled at -60 ° C ~ -80 ° C, the preferred temperature is -70 ° C; finally, low temperature tempering treatment is carried out. The temperature is controlled at 150 ° C ~ 250 ° C, the preferred temperature is 200 ° C; Grinding: Roughly and finely grind the two ends of the ferrule, the inner and outer circumferential surfaces, holes and channels; then conduct rough grinding and semi-finish grinding on the ferrule channel , lapping and superf...

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Abstract

The invention provides a production technology of a high-precision deep groove ball bearing. The production technology includes the steps of (1) ferrule (inner ring and outer ring) machining, (2) rolling body machining, (3) cage machining and (4) assembling. The ferrule (inner ring and outer ring) machining procedure includes the steps of blanking, annealing treatment on blanks, turning, thermal treatment and grinding, wherein in the turning step, the blanks are basically machined and formed. The rolling body machining procedure includes the steps that forging forming is conducted on 9Cr18Mo stainless steel blanks; carburizing treatment is conducted; grinding is conducted; polishing and inspection are conducted. The cage machining procedure includes the steps of workpiece turning, drilling, lubrication hole machining, surface treatment, washing and rust prevention. The assembling procedure includes the steps that a heated bearing outer ring and a cage are placed on assembling equipment, and a rolling body is pressed into a pocket in the cage; a heated bearing inner ring is placed at the corresponding position of the assembly equipment, and the inner ring is pressed slightly to enable the rolling body to be pressed into a groove of the outer ring; the outer ring is taken down, and assembly of the whole bearing is completed. Through the production technology, the precision of the deep groove ball bearing is improved.

Description

technical field [0001] The invention relates to the technical field of mechanical manufacturing and processing, in particular to a production process for high-precision deep groove ball bearings applied under high-speed and low-noise operating conditions. Background technique [0002] With the development of science and technology, some precision machinery and high-end household appliances put forward stricter requirements on the vibration and noise of deep groove ball bearings. These products not only require the bearings to be used at high speeds, but also require the bearings to have low vibration and good sound quality. Suitable for high speed and low noise occasions. [0003] Deep groove ball bearings are composed of inner and outer rings (referred to as rings), rolling elements and cages. In order to ensure that deep groove ball bearings are suitable for high-speed and low-noise applications, it is necessary to ensure the high precision of the manufacturing process of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/00C21D9/40
CPCB23P15/003C21D9/40
Inventor 邱兴忠杨高举杨华剑
Owner ANQING YINTAI BEARING
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