Bosch Rexroth | P2GH5-3X125GH5-3X125RRVU2
P2GH5-3X/125+GH5-3X/125RRVU2
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The P2GH5-3X/125+GH5-3X/125RRVU2 pump assembly belongs to the PGH High Pressure Gear Pumps series from Bosch Rexroth and is built for hydraulic automation systems that need steady flow under elevated pressure. The first pump section moves 125.3 cm³ per revolution, and the second section provides the same 125.3 cm³ per revolution so both stages share equal capacity. Pump 2 turns in a right-hand direction, setting its drive orientation. Each section weighs 48 kg, which helps control vibration and loading on the support frame. A moment of inertia of 0.00407 kg·m² per pump reduces the starting torque required from the prime mover. The unit can operate from 400 rpm for low-flow tasks up to 3000 rpm for peak delivery. Continuous service is supported at 315 bar, allowing the pump to power cylinders and motors that demand high working pressure.
At 1450 rpm and 10 bar the assembly delivers 179.8 L/min, meeting flow requirements for presses and die-casting machines. Each pump takes oil through a 2 1/2 in inlet port built to ISO 6162-1 and sends it out through a 1 1/2 in outlet port that follows ISO 6162-2, ensuring standardized hose connections. Suction pressure can range from 0.8 bar to 2 bar when the inlet is load-free, which guards against cavitation across varying tank heights. The hydraulic circuit may experience short peaks up to 350 bar without damaging the pump, providing headroom above the continuous rating. Pump 2 mounts with a two-hole flange under ISO 3019-1 size 127-2, and its geared shaft end defined by ISO 3019-1 size 38-4 transfers torque without key wear. These interface details, together with the pressure and flow capabilities, enable straightforward integration into modular power units that require consistent, high-pressure oil supply.
Technical Specifications
Direction Of Rotation (pump 2)
Right-Hand
Displacement (pump 1)
125.3 cm³/rev
Displacement (pump 2)
125.3 cm³/rev
Mass (each Pump)
48 kg
Max Flow (1450 Rpm, 10 Bar)
179.8 l/min
Max Operating Pressure
315 bar
Max Speed
3000 rpm
Max Suction Pressure (load-free)
2 bar
Min Speed
400 rpm
Min Suction Pressure (load-free)
0.8 bar
Moment Of Inertia (each Pump)
0.00407 kg·m²
Mounting (pump 2)
2-Hole Flange ISO 3019-1 (127-2)
Pressure Peak
350 bar
Pressure Port (each Pump)
1 1/2 in ISO 6162-2
Shaft End (pump 2)
Geared ISO 3019-1 (38-4)
Suction Port (each Pump)
2 1/2 in ISO 6162-1
1620 Old Apex Road
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