Abstract: A sealed anti-friction bearing, consisting of an inner bearing ring with a raceway arranged on its outer shell surface, of an outer bearing ring with a raceway arranged on its inner shell surface, and of a multiplicity of rolling bodies which roll between the bearing rings on the raceways, wherein two circumferential annular grooves are machined into the inner shell surface of the outer bearing ring axially on both sides next to the raceway in the outer bearing ring, in which annular grooves two seals are fastened which consist in each case of a circularly annular reinforcement and of an elastomer coating and which, on their inner circumference, comprise in each case one first radial sealing lip which bears against axial surfaces of two undercuts arranged on both sides next to the raceway in the inner bearing ring, in each case one second axial sealing lip which bears against radial surfaces of the undercuts in the inner bearing ring, and in each case one third sealing lip which forms a sealing gap together w

Abstract: An exhaust gas system for diesel vehicles has a first exhaust line and a second exhaust line that can be connected at the exhaust end to an engine. The first and second lines with their ends pointing downstream are connected to an SCR catalytic converter and a device with which a reducing agent can be introduced into the exhaust gas at a location situated upstream from the SCR catalytic converter. An injection unit for the reducing agent is provided only on the first exhaust line, and a mixing device is provided upstream from the SCR catalytic converter so that the exhaust lines open into the mixing device, where the exhaust gas stream of the first exhaust line to which the reducing agent has been added becomes mixed with the exhaust gas stream from the second exhaust line that is free of reducing agent.

Abstract: An exhaust gas system for diesel vehicles has a first exhaust line and a second exhaust line that can be connected at the exhaust end to an engine. The first and second lines with their ends pointing downstream are connected to an SCR catalytic converter and a device with which a reducing agent can be introduced into the exhaust gas at a location situated upstream from the SCR catalytic converter. An injection unit for the reducing agent is provided only on the first exhaust line, and a mixing device is provided upstream from the SCR catalytic converter so that the exhaust lines open into the mixing device, where the exhaust gas stream of the first exhaust line to which the reducing agent has been added becomes mixed with the exhaust gas stream from the second exhaust line that is free of reducing agent.