The bearing is a sliding bearing and shaft neck contact part, shape is a semicircular cylinder shaped tile, very smooth, generally made of bronze, anti friction alloy wear-resistant material, in particular, can use wood, plastic or rubber engineering.
Thick walled bearing can be cast, in order to improve the friction performance, the bearing inner surface layer bearing alloy casting. In order to make the bearing alloy and bearing attached well, often produce various forms of tenon and groove or thread in bearing inner surface. Thin wall bearing can use the double metal plate continuous rolling process of mass production.
Bearing equipment should be carefully really detect damage it, assuming the bearing alloy is melted, falling, scraping or excessive damage (alloy thickness less than zero point three mm), joint surface or bearing steel back and seat hole is less than seventy-five percent, should be replaced with new tile. A bearing seat hole, should check carefully the damaged bearing, bearing alloy melting, hypothesis shedding, scratches or excessive wear (alloy thickness less than zero point three mm), joint surface or bearing steel back and seat hole is less than seventy-five percent, should be a new tile. Put into the hole after the end bearing seat hole is higher than the plane must be highly H, in order to ensure the bearing seat hole card and cooperation with the amount of interference fitting, ordinary H is zero point zero five to zero point one mm. If the H value is small, the local bearing joint seam, bearing is easy to loose fitting, bad block hole damaged worse, cause falling and melt bearing fatigue; such as H values, bearing simple occurrence change, bearing normal cooperation and shaft neck damage, even lead to burning tile. Therefore, it is necessary to pay attention to the height of the installation. The height is too large can be filed for bearing repair or sanding; height hours from scratch with a tile or repair hole.