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The 25M65A 11C20 motor belongs to the Vane Motors series and is manufactured by Vickers. It is a positive displacement unit intended to convert hydraulic energy into mechanical rotation in automated circuits. The cartridge houses 10 vanes, a count that evens out pressure fluctuations and delivers steady output torque. Under a supply of 100 psi, the motor produces a nominal 65 lb·in of torque, allowing straightforward sizing for variable pressure systems. Bidirectional operation permits shaft reversal without mechanical changes, with clockwise rotation occurring when the body port is pressurized and counterclockwise rotation when flow enters the cover port. An in-line port configuration aligns the pressure and return passages for simplified manifold routing, while SAE 4-bolt flanged ports provide a rigid, leak-resistant connection to the circuit.
The internal shaft rides on a standard bearing set that supports continuous duty while keeping replacement parts common across the series. A SAE 2-bolt mounting flange lets the motor attach directly to industry-standard pads without adapters. The drain port is positioned in the cover so excess case oil can exit at the highest internal point. An external case drain line is required to route this oil back to tank and to prevent pressure buildup around the shaft seal. Case drain pressure must be limited to 30 psi to maintain seal integrity and avoid reducing bearing life. The model code 25M65A 11C20 identifies these hydraulic and mechanical features for ordering and service reference.
Bearing Type
Standard
Drain Port Location
Cover
External Case Drain
Required
Max Case Drain Pressure
30 psi
Model Code Reference
25M65A 11C20
Motor Type
Positive Displacement
Mounting Flange
SAE 2-Bolt
Nominal Torque Per 100 Psi
65 lb·in/100 psi
Operating Direction
Bidirectional
Port Configuration
In-Line
Port Connections
SAE 4-Bolt Flanged
Rotation With Body Port Pressurized
Clockwise (shaft end)
Rotation With Cover Port Pressurized
Counterclockwise (shaft end)
Vane Count
10
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