Eaton Vickers 25M 35M 45M 50M Vane Motor 26M 36M 46M 51M

Eaton Vickers 25M 35M 45M 50M Vane Motor 26M 36M 46M 51M

General information

Vickers high performance vane motors, when properly installed in a hydraulic circuit, convert hydraulic power into rotary mechanical power. They are positive displacement, balanced cartridge units,with drive speed dependent on the motor size and gpm deliveryto the inlet port. The units are capable of operating at high speeds and high pressures, or higher speeds at lower pressures. These motors may be operated in either direction of rotation, reversed or stalled under load conditions without damage. All motors covered in this manual are basicallyidentical in construction. The motors are designed so that the maximum torquecapability can be changed withina series by changing the cartridge or the cam ring.

Mounting

The motors are body face mounted, or are available with an optional foot mounting The body mounting is a standard SAE 2-bolt type.

Assembly and Construction

The unit consists principally of a body, cover, drive cartridge and shaft. Rotary motion is developed in the cartridge, which principally consists of a ring, rotor, ten vanes and two pressureplates. The rotor is splinesand mates with the output shaft, which is supported by a ball bearingin the body and a bushing bearingin the cover pressure plate.

The vanes slide radically in the rotor slots and follow the elliptical cam contour of the ring as the rotor turns. These vanes are held against the ring by a combination of spring and centrifugal forces. Port connections are located in the body and cover. Direction

of shaft rotation is governed by the direction of fluid flow through these ports. Pressure is sealed from one port to the other by a Teflon sealing ring in the body on the periphery of the ring. Drainage is ported through an external connection in the cover.

The cartridge is bolted together and can be serviced as a complete assembly. Locating pins position the ring with respect to the pressure plates, and in like manner, two torque pins position the cartridge in the cover. The cover can be assembled in four positions with respect to the body. Changing of the port positions is accomplished by rotating the cover and cartridge.

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