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The Rol-Vane Hydraulic Motor
is an efficient and compact means of applying variable speed
rotary hydraulic power.
Linear Output Torque with
constant input pressure. The pulseless torque is created by
having a constant area operated on by a constant pressure
at a constant radius.
Symmetrical Reversibility
is obtained by having identical flow paths within the motor.
Self-Lubrication provided
by the driving fluid.
Balanced Pressure Areas and
the elimination of mechanical rubbing surfaces minimizes breakaway
friction torque loss permitting maximum stall torque, inching
and fractional rpm.
Service may be continuous,
intermittent, reversed or stalled under load. Adequate protection
should be provided to prevent shock loadings from exceeding
maximum pressure ratings.
Minimum Speed determined
by the fluid control device.
Filtration following good
hydraulic practice is recommended for all installations. For
system pressures above 1000 psi, 10 micron filtration ahead
of the motor is required.
Mounting Position no restriction.
Overhung and Radial Loads
not permitted. Consult factory.
Coupling should have the
ability to compensate, without undue loading for some unavoidable
variations in alignment. The coupling should also insure the
axial freedom of the motor shaft under no-load and loaded
conditions. Maximum run out of .003 permissable on shaft alignment.
Maximum Rate of Oil Temperature
change 7°F./min.
Temperature recommended operating
range 100°F to 130°F.
Working Fluid should be a
premium grade of anti-wear hydraulic oil with a viscosity
range of 150-475 SSU @ 100°F. A minimum of 125 psi back
pressure is recommended in the return line to insure proper
lubrication.
The standard motor is flange mounted with or without auxiliary
tachometer drive extension. Face and foot mountings available.
For all special modifications on mounting, single or double
shaft extensions, manifolds for servo-valves and etc., consult
factory. |
