Linear rolling bearing

A linear rolling bearing comprising a guide carriage mounted through rolling bearing rollers on a guide rail, said guide carriage comprising

• at least one endless roller channel for the rollers, said roller channel comprising a load-bearing channel for load-bearing rollers, a return channel for returning rollers and two deflecting channels that connect the load-bearing channel and the return channel to each other,
• said guide carriage further comprising a carrier body in which said return channel and said load-bearing channel are arranged, and, on two front ends of the carrier body, end members in which said deflecting channels are arranged,
• said return channel comprising a return tube with a substantially smooth outer cylinder surface, a contour being configured within the return tube for forming the return channel, wherein the return tube is inserted into the carrier body,
• said roller channel comprising raceways for the rollers and side surfaces for laterally delimiting the roller channel,
• each end member comprising between opposing end-member surfaces, a concave outer raceway of one of the deflecting channels, wherein the return tube comprises tongues that engage into the end member,
• opposing tongue surfaces of the tongues form, together with the opposing end-member surfaces of the end member,
• the side surfaces for laterally delimiting the deflecting channel, and a positioning device,
• assures that the opposing tongue surfaces of the tongues are retained in a common plane with the opposing end-member surfaces of the end member, wherein the tongues are clamped between the stop sections and bearing sections of the end member, wherein the stop sections and the bearing sections are arranged one after another in a direction of the roller axis.