| 摘要 |
The bearing consists of an H-section body (2) with upper and lower guide channels for a series of cylindrical rollers (1) set in a continuous double row. The rollers in the lower channel are held in place by a frame, e.g. of plastics, formed by side-pieces (3,4) with in-turned edges which still permit free movement of the rollers. The H-shaped body is surmounted by a component (6), with or without an intermediate element (11), which allows the pressure of the rollers against the track to which they are applied to be regulated. The movement of the component (6) is controlled by an end piece (8) and a screw which engages with a threaded hole in the component. |
