Maintenance-free rubber lining structure of balanced axis

The utility model relates to a balance shaft maintenance-free the latex sleeve structure and is characterized in that the latex sleeve is composed of two semicircle steel plates and latex; the circle arcs of the internal surface and the external surface of the semicircle steel plate are provided with the latex layers; a point of the sleeve is provided with a joint seam; and the internal and external arcs of the latex sleeve are provided with a ring protruding. The utility model the balance shaft maintenance-free latex sleeve has the advantages that the latex sleeve vulcanized by the latex and the metal frame sulfur realize the consonant moving relation through the deformity of the latex, thereby thoroughly avoid the defect that the original structure balance suspension rack and the double-metal sleeve come into a mutual friction and bring about the frays between the parts. The balance shaft latex sleeve has a good shock-absorption effect upon the high-frequency vibration, so that the sleeve can effectively reduce impinge, shock and noise of the complete vehicle. This quantity of the balance shaft latex sleeves per shift turns from the original four to two, further simplifying the structure and assembly technology of the balance suspension rack. That not only reduces the cost, but also greatly improves reliability of the system and extends the service life.