S684 Bearing

Size: length*width*height 4*9*2.5 (mm), the size can be customized according to customer needs.

Material: stainless steel 304, stainless steel 420, stainless steel 440, stainless steel 316, the material can be customized according to customer needs.

Neutral salt spray certification for 260 hours.

Ball bearing salt spray certification test is tested in accordance with ISO 9227 standards

The level of manufacturing technology is low. my country's bearing industry manufacturing process and process equipment technology is developing slowly, the CNC rate of turning is low, and the automation level of grinding processing is low. There are only more than 200 automatic production lines in the country. Advanced heat treatment processes and equipment that are crucial to bearing life and reliability, such as controlled atmosphere protection heating, double refinement, bainite quenching, etc., have low coverage, and many technical problems have not been broken through. The research and development of new types of bearing steel, the improvement of steel quality, and the research and development of related technologies such as lubrication, cooling, cleaning and abrasive tools cannot meet the requirements of improving the level and quality of bearing products. As a result, the process capability index is low, the consistency is poor, the product processing size is large, and the internal quality of the product is unstable, which affects the accuracy, performance, life and reliability of the bearing.
 

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