Guide carriage of a linear rolling bearing

A guide carriage of a linear roller bearing, having at least one endless raceway for rolling bodies, and having a carrying body, on the two longitudinal sides of which in each case one carrying section and one return section of the endless raceway is provided, the carrying section being provided rolling bodies which roll under load and the return section being provided for rolling bodies which return without load, and having head pieces which are arranged on end sides of the carrying body and in each case have one deflection section which connects the return section to the carrying section, a lubricant channel being provided for the supply of lubricant, which lubricant channel can be connected to the raceway of the rolling body via a valve, wherein the valve has a slot which is provided for the passage of lubricant, crosses the cross section of the lubricant channel and is delimited by slot faces, the slot faces bearing against one another when the valve is shut, with the slot being closed, wherein at least one of the head pieces is provided with the lubricant channel which can be connected to the deflection section via the valve, for supplying lubricant, wherein the head piece comprises a distributor plate which is formed from plastic and is provided with a branched distributor channel, at the ends of which transfer holes are provided, the slots being arranged in the transfer holes, and wherein which the transfer hole opens at a inner deflection means.