Q：What are the main factors affecting bearing corrosion?

A:① Chemical composition and structure of the bearing material itself;

② Bearing surface finish (oxygen concentration difference battery corrosion);

③ Solution composition and pH value in contact with the bearing surface;

④ Ambient temperature and humidity;

⑤ Various environmental media in contact with the bearing surface.

Q:What are the methods to prevent bearing rust?

A:The common method of rust prevention is to dress iron in “clothes” – paint the surface of iron or plate it with other anti-rust bearings to make a stainless alloy. For example, stainless steel is an alloy made by adding a little nickel and aluminum to steel.

Q:Why does sweaty hands cause bearing corrosion?

A:Human sweat is a colorless, transparent or light yellow, salty, weakly acidic liquid with a pH value of 5 to 6. In addition to sodium, potassium, calcium, and magnesium salts, it also contains a small amount of urea, lactic acid, citric acid, and other organic acids. When sweat comes into contact with the bearing, a sweat film will form on the bearing surface, which will cause electrochemical effects on the bearing and corrode the bearing. Sweating is inevitable. To prevent rust caused by sweat, production personnel should wear gloves, finger cots, or use special tools to pick up parts, and do not touch the product with their hands.