Pillow Block (Insert Bearing with Housing) is a bearing unit that combines rolling bearing and bearing seats. Most outer spherical bearing is made of the outer diameter into a spherical surface, which is installed with the imported bearing seat with a spherical inner hole. The structure is diverse, the universality and interchangeability are good. The sealing device of the structure can be applied to different operating conditions and mechanical devices, and can work in harsh environments.

It is suitable for simple support and wide application fields. It involves various industries and is commonly used in mining, metallurgy, ships, agriculture, chemical industry, textiles, printing and dyeing, transportation machinery, beverage machinery, construction machinery, etc.

In many cases, the bearing will cause rust, which causes many reasons for the rust of the bearing. The most common main factors are the following:

1) Due to poor sealing device, it is invaded by water, dirt, etc.

2) The bearing is not used for a long time, exceeding the rust -proof period, and lack of maintenance.

3) The metal surface roughness is large;

4) Contact with corrosive chemical media, the bearing is not cleaned, the