Bosch Rexroth | AA10VO28DR52L-VSC64N00
AA10VO28DR/52L-VSC64N00
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The AA10VO28DR/52L-VSC64N00 variable displacement pump is manufactured by Bosch Rexroth for the A10VSO Variable Pumps series and supplies controlled hydraulic energy to automated machinery. A displacement of 28 cm³ per revolution defines how much fluid moves through the unit each shaft turn, while a flow rate of 50 L/min at 1800 rpm shows the delivery expected at a common drive speed. The pump can run safely up to 3600 rpm when stroked below maximum, and it is limited to 3000 rpm when operating at full displacement to prevent excessive surface velocity. Continuous duty is supported at 280 bar, with short pressure peaks allowed up to 350 bar for transient loads. A drive torque of 45 Nm at 100 bar quantifies the mechanical effort needed during low-pressure cycles, and a moment of inertia of 0.0017 kg·m² helps the prime mover accelerate the pump without large energy spikes.
A case volume of 0.7 L stores internal leakage oil to ensure bearing lubrication and thermal stability. The pressure outlet uses a 3/4 in SAE J518 connection that mates with standard high-pressure lines, and the suction inlet is sized at 1 1/4 in SAE J518 to reduce flow velocity at the pump entrance. Case drain oil is routed through a 3/4-16 UNF-2B threaded port, and pilot control oil reaches the servo mechanism via a 7/16-20 UNF-2B thread. Maximum flow climbs to 84 L/min when the shaft turns at top speed, allowing the pump to satisfy momentary demand surges. A drive torque of 125 Nm at 280 bar indicates the power required under full load, and a dry weight of 15 kg influences mounting hardware selection in mobile or stationary installations.
Technical Specifications
Case Drain Port Thread
3/4-16 UNF-2B
Case Volume
0.7 L
Displacement
28 cm³/rev
Flow At 1800 Rpm
50 L/min
Max Flow At Max Speed
84 L/min
Max Permitted Speed (vg<vg Max)
3600 rpm
Max Speed At Vg Max
3000 rpm
Moment Of Inertia
0.0017 kg·m²
Nominal Pressure
280 bar
Peak Pressure
350 bar
Pilot Port Thread (x)
7/16-20 UNF-2B
Pressure Port Size
3/4 in (SAE J518)
Suction Port Size
1 1/4 in (SAE J518)
Torque At 100 Bar
45 Nm
Torque At 280 Bar
125 Nm
Weight (without Fluid)
15 kg
1620 Old Apex Road
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