2-27
2
DRIVE MOTOR 2.12
General Information
The basic geroter design uses a combination of mechani-
cal and hydraulic principles that are utilized in the high
torque, low speed motors.
The outer ring ( fig. C153 ) of the geroler assembly is
similar to an internal gear that is held in a fixed position
by securing it to the motor housing. The rotating inner
gear, called a star, orbits inside the secured outer ring.
C153
Because of the different number of teeth on the star and
outer ring, the star rotates in an eccentric circular orbiting
motion from the housing center line. ( fig. C154 )
C154
C1129
