(1) Ensure cleanliness of bearing and assembly/disassembly environmentThe American bearing industry once emphasized to users that "no dust is allowed in the watch, and the bearing is a much more precise mechanical element". Dust will damage the integrity of the lubricating oil film and cause contact potent…
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440 stainless steel bearing440 stainless steel bearing is a stainless steel bearing of standard structure. The rings and steel balls are all AISI SUS440C (9Cr18Mo or 9Cr18) and vacuum quenched and tempered. The cage and seal ring skeleton are made of AISI304 or AISI316, with accuracy up to ISO standard ABEC-5 and vi…
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