Bolt connection mechanism of gyro wheel and step part

The utility model discloses a bolt connection mechanism of gyro wheel and step part, including step part and gyro wheel, the middle part axial of gyro wheel is provided with the bearing, the step partis including outstanding shaft part, the shaft part inserts in the dead eye of bearing, the root of shaft part is provided with the shaft shoulder, the shaft shoulder supports the bearing inner race's of bearing one end terminal surface, be provided with the bolt in the shaft part, the the central axis of bolt with the the central axis of bearing is parallel, bolt and screw hole threaded connection, the outer end of bolt is provided with main aspects, the diameter or the width of main aspects are greater than the diameter of shaft part, main aspects are pushed down bearing inner race's otherend terminal surface. The utility model discloses a bolt connection mechanism of gyro wheel and step part simple structure, the part of use is small in quantity, and the cost is reduced and part purchase, stock etc. Manage the