That part of the support shaft bearing, the friction nature of its work, the bearing can be divided into sliding friction bearings (referred to as sliding bearings) and rolling friction bearings (referred Rolling) categories. And each class bearing, according suffered different load direction, can be divided into radial bearings, thrust bearings and radial thrust bearings.
     A sliding bearing
     Features 1. plain bearings
    Bearing smooth, low noise compared Rolling, reliable work. If you can guarantee the sliding surface lubricant film separately without touching occurs, it can greatly reduce the friction loss and surface wear. However, ordinary starting friction bearing is large.
     2. Slide bearing applications
     ① bearing particularly high operating speed, such as grinder spindle;
     ② withstand extreme shock and vibration load bearing, such as rolling mill rolls;
     ③ require special precision bearings;
     ④ split bearing assembly process requirements of the occasion, such as the crankshaft bearings