Take release bearing unit of core housing among location structure

The utility model discloses a take release bearing unit of core housing among location structure, including the well core housing that has the installation hole, install the release bearing who puts in the center and have the axle sleeve of sleeve portion, it is downthehole in the core housing installation during sleeve portion inserts, release bearing includes outer lane, inner circle and installs steel ball and the holder between inner circle and outer lane, be equipped with sealing washer, its characterized in that between the first end of axial of inner circle and outer lane: well core housing installation hole has two at least constant head tanks along the circumference equipartition, the first port outward flange of axial of sleeve portion corresponds the constant head tank and is equipped with the location bump, and the location bump corresponds card income constant head tank when well core housing and bushing installation. The utility model discloses product location is accurate, and it is whole to ne