Abstract: A bearing cap (16) is sealingly inserted between a front bearing bush (3) and a fluid-tight sleeve (17). Between a front portion (10) of a rotor shaft (5) and the front bearing bush, two overlying lubricating grooves (11, 12) are disposed. On a rear portion (13) of the shaft, a baffle plate (20) having vanes is mounted, an annular gap (21) existing between the shaft and the inside diameter of the vanes. Between the rear portion of the shaft and a rear bearing bush (4), lubricating grooves (14, 15) are formed continuously. The rotor chamber is quickly vented, no contamination thereof taking place. Lubrication and heat evacuation from the rotor chamber are ensured.

Abstract: A transverse guide roller arrangement for a vehicle which can be guided mechanically along a guide track or the like provided on the side of a lane. The transverse guide roller arrangement includes at least one rolling surface which is approximately vertical when the guide roller is in an operating position. The rolling surface is formed by a rubber tire mounted on a rim having a hub rotatably supported on a fixed journal attached to an end of a supporting arm or the like. The hub forms radially, without transistion on an outside thereof the rim without a wheel disk, spokes, screw on flange, or the like. The hub and rim are combined structurally into one piece, with the journal being exchangeably attached to the supporting arm.