Radial support and axial pre -tightening structure of installation bearing motor rotor dynamic balance measuring

The utility model discloses a radial support and axial pre -tightening structure of installation bearing motor rotor dynamic balance measuring. Electric motor rotor supports and installs in the enterprising conduct of the radial bearing structure of rotor bearing to the support, and carry out the axial pretension through the rotor bearing axial pre -tightening structure who installs on the radial bearing structure of rotor bearing, form the point contact through the wolfram steel stick of the bar inslot at the radial support frame in both sides and electric motor rotor bearing inner race's the face of cylinder among the radial bearing structure of rotor bearing, rotor bearing axial pre -tightening structure compresses tightly the subassembly including installing baffle that is keeping off the radial support frame lateral surface of axle side and the axial of installing on the radial support frame of apical axis side, the baffle is spacing to the axial of an electric motor rotor end bearing, the axial compress