Vickers | VMQ125S050A00100AAAANR00-A032
VMQ125S050A00100AAAANR00 A032
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The VMQ125S050A00100AAAANR00 A032 vane pump is produced by Vickers as part of the Vane Pumps series. It supplies fixed-volume flow for hydraulic automation where consistent pressure is required. The unit provides a displacement of 50.0 cm³ per revolution and is classified under frame size 25. Torque is transferred by a keyed input shaft per SAE J744 with a diameter of 25.40 mm. Clockwise rotation defines the flow direction. Installation uses an SAE J744 101-2 two-bolt front mounting flange, centred by a 101.60 mm pilot diameter and supported by a pilot length of 9.4 mm. A bolt circle diameter of 146.0 mm secures the housing on the drive interface.
Fluid entry is through an SAE J518 four-bolt inlet flange in inch dimensions, while discharge exits via an SAE J518 four-bolt outlet flange that sits opposite the inlet at port position A. Sealing at the drive end relies on a single primary shaft seal formed from nitrile Buna-N to limit external leakage. The shaft keyway clearance is matched to a slot diameter of 14.4 mm to ease assembly with standard couplings. These interface details, combined with the specified flange connections, allow the pump to integrate quickly into compact power units and maintain serviceability in industrial hydraulic systems.
Technical Specifications
Bolt Circle Diameter
146.0 mm (5.75 in)
Displacement
50.0 cm3/rev
Frame Size
25
Front Mounting Flange
SAE J744 101-2 (SAE B) 2-Bolt
Inlet Port Type
SAE J518 4-Bolt Flange (inch)
Input Shaft Type
Keyed per SAE J744
Outlet Port Position
Opposite Inlet (A)
Outlet Port Type
SAE J518 4-Bolt Flange (inch)
Pilot Diameter
101.60 mm (4.000 in)
Pilot Length
9.4 mm (0.37 in)
Rotation
Clockwise (RH)
Seal Material
Nitrile (Buna-N)
Shaft Diameter
25.40 mm (1.000 in)
Shaft Seal
Single, Primary
Slot Diameter
14.4 mm (0.57 in)
1620 Old Apex Road
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