S638 Bearing

Size: length*width*height 8*28*9 (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

Industry production concentration is low. In the world's bearing sales of about 30 billion US dollars, the world's eight largest multinational companies account for 75% to 80%. Germany's two major companies account for 90% of its national total, Japan's five companies account for 90% of its national total, and the United States' one company accounts for 56% of its national total. However, the sales of the 10 largest bearing companies such as ZWZ in my country only accounted for 24.7% of the entire industry, and the production concentration of the top 30 companies was only 37.4%.

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