1: Will bearing steel rust?

Will rust. Bearing steel, including stainless steel, rusted.

Although stainless steel is known as rust, in fact, is also rusty, in fact, there is no stainless steel in the world!

2: how does bearing steel rust?

The so-called stainless steel refers to the degree of corrosion resistance is different.

Corrosion speed < 0.01mm/y, considered “complete corrosion resistance”;

Corrosion speed < 0.1mm/y, it is considered “corrosion resistance”;

Corrosion rate > 0.1mm/y, it is considered “corrosion resistant”, that is, general steel.

In addition to a small part of bearing steel is stainless bearing steel, most of it is ordinary corrosion resistant steel, so rust is not strange at all, very normal.

3: why will bearings rust?

Bearing rust is related to the material and the use environment. Bearing steel itself contains carbon, which will react when it encounters water vapor. Do not want to let the bearing rust to do a good job of anti-rust treatment. Or choose non-steel bearings.

Metal products, easy to rust after oxidation, stainless steel bearings are no exception. There are many factors affecting its rust: such as the chemical composition and structure of the metal material itself; Surface finish (oxygen concentration difference battery corrosion); The composition and pH of the solution in contact with the metal surface; As well as its environment and many other factors, these are the direct factors that cause bearing rust.

In addition, when we use bearings, do not contact objects directly with your hands, because when sweat and bearing contact, will form a layer of sweat film on the bearing surface, sweat film will cause electrochemical effect on the bearing, corrosion of the bearing. Therefore, we need to use special gloves or finger covers and other special tools to take the bearing, not direct hand contact.

If  you have any questions,pls feel free to contract us.

e-mail:bearing6@hyzcgroup.com