Linear guiding device

A linear guiding device, comprising a guide rail having a longitudinal axis, a main body of a bearing having at least one rolling-element circuit guiding the main body along the axis on the guide rail and having an end surface, an end plate attached to the end surface of the main body of the bearing, the end plate having a contact surface facing the end surface of the main body of the bearing, a deflection duct for the rolling-element circuit recessed into the contact surface of the end plate and constituting an outer deflecting surface for a deflection-arc segment of the rolling-element circuit, a deflection-piece receiver duct recessed into the contact surface of the end piece and arranged crosswise of the deflection duct, a deflection piece received in the deflection-piece receiver duct and extending across the deflection duct, the deflection piece having a breast surface facing and located proximate to the end surface of the main body of the bearing and a convex back-surface located opposite the outer deflecting surface and forming an inner deflecting-surface for the deflection-arc segment, at least a part of a lubricant-supply system for the rolling-element circuit being accommodated in the end plate, a portion of said part of the lubricant-supply system which is close to the rolling elements extending inside the deflection-piece receiver duct and being open toward the rolling elements of the rolling-element circuit in the area of the inner deflecting surface, said part of the lubricant-supply system having a lubricant channel running wholly inside the end plate and connected proximate to the deflection-piece receiver duct with channel portions of the lubricant-supply system that are accommodated in the deflection-piece receiver duct, said end plate being shaped from an end plate base material, said lubricant channel having a channel axis substantially parallel to the end surface of the main body of the bearing, said lubricant channel being surrounded along at least a part of its length along said channel axis by surrounding wall means, said surrounding wall means being annularly closed around said channel axis and integrally made of said end plate base material.