... 26M, 36M, 46M, 51M for heavy duty bearing Eaton Vickers Hydraulic Vane Motor, Design 20-29, 25M, 35M, 45M, 50M ... vane motors, when properly installed in a hydraulic circuit, convert hydraulic power into rotary mechanical power. They are positive-displacement, balanced cartridge ... high pressures, or higher speeds at lower pressures. The unit consists principally of a body, cover, drive cartridge and ...