| 摘要 |
<p>A track joint seal system comprises a pin (43) having, at each end, a first track link (41) rotatably coupled to the pin by means of interposition of a bushing (49) and an end element (42) coupled to the end of the pin (43); the end element (42) comprises an annular seat (57) bearing, housed, a seal group (56) cooperating with the bushing (49) to make the sealing of the. joint; the bushing (49) is provided at the end with an annular head seat (58), provided to house a bushing insert (53) provided with an abutment surface (48) destined to be in contact with a seal portion (47) of the seal group (56).</p> |
