Patent ID: 7213971

Claim:
A linear roller bearing, comprising a guide rail extending in a longitudinal direction; a guide carriage which is guided longitudinally displaceably on said guide rail; at least two revolving rows of roller bodies, by means of which said guide carriage is guided on said guide rail; a plurality of endless revolution conduits each formed by a load-bearing conduit and a return conduit that extends in said guide carriage, each of said rows of roller bodies being received in said endless revolution conduit; a track provided on said guide rail and a track provided on said guide carriage, which tracks define said load-bearing conduit; and a portion provided on an inner circumferential surface of each return conduit and being movable relative to said track of said guide carriage, wherein said portions provided on said inner circumferential face of said return conduits are formed so that motions of said portions are coupled.