This slide bearing concept, namely SiC/SiC shaft sleeve and SiC bearing, has been used since 1994 in applications such as in the boiler feedwater pumps of power stations, which pump several thousand cubic meters of hot water to a level of 2000 meters , and in tubular casing pumps W. Kochanowski, P. Tillack: New Pump Bearing Materials Prevent Damage to Tubular Casing Pumps.