Concept for returning rolling elements in a guide carriage of a linear rolling bearing

The device has a rolling body returning channel (11) with an end region (12), where a rolling body (13) enters into the end region from a rolling body deflection region (14). The channel includes another end region (15), where the rolling body exits from the latter end region into another rolling body deflection region (16). The channel includes a trapezoidal arched region between the end regions in a mounted condition so that the channel is arranged around a rigidity increasing arrangement (18) of a guide carriage (20). The bulge points away from a guide rail. The channel is made of plastic. Independent claims are also included for the following: (1) a guide carriage (2) a method for returning rolling bodies in a guide carriage of a rolling bearing-mounted linear guide.