White HB Series, 300400F8520ZAAABP, The HB Series motor is the leader in its class offering high efficiency and durability. The three-zone orbiting valve laminated manifold and Roller Stator® motor work harmoniously to produce high overall efficiencies over a wide range of operating conditions. The standard case drain increases shaft seal life by reducing internal pressures experienced by the seal. case oil leakage is also directed across all driveline components increasing motor life. An internal drain option is also available. At the heart of the motor is a heavy-duty drivelink offering 30% more torque capacity than competitive designs. These features make the HB Series motor the preferred choice for applications requiring peak efficiency for continuous operation.....Pictures shown are for illustration purposes..... .... Our website has three generations of White part numbers. If you are having trouble finding the correct part number, text or call 617-694-1500. Prices subject to change without notice.