Shell and the shell of the steel shaft with roller roller GB dedicated high frequency welded pipe, car, therefore legitimate public use of roller machine tools, metal forming by cold plate bearing, precision grade ISOM7, the accuracy can lower starting torque . Bearing shells and automatic welding with CO2 gas shielded welding machine, so that the overall structural strength and can ensure good accuracy, so that the minimum radial imbalances. Axis drawing processing to ISOH6, to ensure that the installation of precision bearings. |