All types of slurry pump may be adopted with the same series of driving assembly, included frames and bearing assemblies. A extremely rigid shaft of larger diameter with short overhang to eliminate deflection and vibration under all condition of use .Large, wide, heavy duty, grease lubricated single or double rows taper roller bearing and roller bearings are fitted based on the transmitting power. The bearings are more than ample to carry all radial and thrust loads at maximum pump duty and have an unusually long life factor. Spigotted end covers close the housing and carry labyrinth sleeve and ring (bearing seal) to prevent slurry and dirty entering in bearings.