These motors have spool valve. The distributor valve has been integrated with the output shaft. The Gerotor set have plain teeth. These types of motors are suitable for long operating periods at moderate pressures or short operating periods at high pressures.
Options

Flange and Wheel mount.
Motor with needle bearing.
Side or Rear ports.
Shafts: Straight, Splined or Tapered.
Shaft seal for high and low pressure
Ports: Metric or BSPP.
Speed sensoring.
Other special features.