Track line for tracked vehicle - has pivot pin in bearing bush with rubber end portions fixed to link and pin and harder central portion

摘要

The pivot is for the track links (1,2,3) of a tracked vehicle. Each link comprises a fixed bush (2) at either end carrying a pivot pin (6) via a bearing bush (8,9,8). This bearing bush consists of two soft rubber bushes (8) at either end of the pin with a bush (9) in harder material between them. The bushes are immobile relative to the pin and to the fixed bush (2). They can be secured by vulcanising and/or adhesive. Pivot pins of adjacent links may be connected via short lateral links (7) immovably fixed to these pins. The bushes (9) may be in plastic, whilst the bushes (8) have a maximum Shore hardness of 50 deg., preferably 40-45 deg..