For each part of the use of electric tools working conditions, to provide optimal bearing solutions, through continuous bearing experiments, environmental simulation experiments, electric tools endurance experiments, electric tools actual beating experiments, from the full range of the overall effective analysis of the tool, and internal part number fixed bearing properties raw material properties spare parts and each microstructure, in order to ensure the stability of the use of tools.

The high sealing, low noise and long life performance of the electric tool bearings are more effectively ensured, while the practical reliability of the bearings is effectively ensured due to the improvement of the materials and production equipment of the motor shaft stains, and the quality level of the electric series bearings has reached the international advanced level.