Circular roller guiding system, has pin carrying existing roller, and additional roller, carried on former roller, whose prestressing on its rolling face maintains existing roller in contact with faces of dowel bush for different periods

摘要

The system has a pin, carrying an existing freely rotatable circular roller (5), blocked in translation, and an additional roller (7) carried on the roller (5). The roller (7) is supported on a rolling face (4) integrated to a dowel bush (2). The rollers (5, 7) are carried in their grooves by a nut. A light prestressing of the roller (7) on the face (4) maintains the roller (5) in contact with a face (F) of the bush for a period. The roller (5) is maintained in contact with a face (F`) of the bush for another period. The transition occurs when the roller (5) is in low speed displacement phase.