| 摘要 |
<p>The friction union locks an axle in relation to a nave and has an inner casing radially alterable in shape. It also has a radially shape-alterable outer casing and a ring-shaped piston axially displaceable relative to both casings. The piston has a cone surface working in conjunction with the inner and/or outer casing. The cone surface, in its displacement relatively to the inner and outer casings, can alter tehir shape to produce a locking effect. The friction union incorporates an activator which causes the piston to move to lock the friction union. The activator and a de-activator, viewed in an axial direction, are located on the same side of the piston.</p> |
