1, the vehicle should be working within the rated load range, if severe overloading will lead directly to the bearing overload will lead to early failure of bearings produce more serious cause of vehicle breakdowns and safety incidents;

Prohibited the bearings by abnormal impact loads;

3, periodically check the use of state of the bearings, observe the bearing parts are abnormal noise and local sharp temperature rise phenomenon;

4, as required on a regular basis, the quantitative filling oil or grease;

5, according to vehicle usage, at least every six months to completely change the oil, and carefully check the bearings;

6, bearing maintenance state inspection: disassemble bearings with kerosene or gasoline to clean, careful observation of the bearing inner and outer cylindrical surface sliding or creeping phenomenon, the inside and outside of the bearing raceway with or without peeling, pitting condition, rolling body bearing checking and maintaining shelf wear and deformation, determine the bearing is able to continue to use.