| 摘要 |
The track support roller, driven around an axle, has a hub (7) and a rim (2). Axial and radial vibrations are absorbed between hub and rim. The shock absorbers may comprise elastic radial (19,22) and axial (23,26) mountings. These absorbers may be leaf springs, for example cylindrical, held in position by pins with spherical shoulders, or in a synthetic elastomer. The rim and hub may be driven together by a pin (27) fixed axial to a rim central neck (3) engaging, with free play, in a notch in the hub end disc (9). ADVANTAGE - Efficiently absorbs track vibrations. The usual rubber tyred rims can only absorb high frequencies and noise.
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