Bearing arrangement of shafts which rotate at high speeds

摘要

The invention concerns the problems of lubricating rolling bearings for supporting, for example, the spinning rotor (8) of a fine spinning machine with rotating speeds in excess of 60,000 min<-1>. Between the shaft (2) and the bush (1) there is arranged a sleeve (7) which surrounds the shaft with a degree of play, is made of a porous material if desired and has, on the spinning rotor side, at least one inner cutting edge (9) which rests against the shaft with a small amount of play. Between the outer sleeve surface and the inner bush surface there is formed a chamber (10) into which there opens out a filling channel (6) which is formed in the bush (1).