Bosch Rexroth | AA10VO45DFR52R-VSC62N00
AA10VO45DFR/52R-VSC62N00
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The AA10VO45DFR/52R-VSC62N00 variable pump is produced by Bosch Rexroth as part of the A10VSO Variable Pumps series and supplies adjustable hydraulic flow for automated machinery. It displaces 45 cm³ per revolution, giving a fixed volume relationship between shaft rotation and fluid output. A nominal pressure limit of 4000 psi supports continuous heavy-duty work, while a peak pressure tolerance of 5100 psi covers short-term load surges. At 1800 rpm and full displacement, the pump delivers 21.4 gpm to maintain stable actuator speeds, and it draws 51 HP at the same operating point and pressure differential, guiding prime mover sizing. Integration is simplified by a 1-inch SAE J518 pressure port, and the internal cavity holds 0.26 gal of fluid to keep bearings and rotating groups lubricated during startup.
The drive shaft is rated for 340 lbf of axial load and the same value in radial load, allowing direct coupling without auxiliary supports. Maximum speed reaches 3100 rpm when displacement is reduced, yet it is limited to 2600 rpm at full displacement to control heat and wear. Under these conditions the pump can provide up to 30.9 gpm, meeting circuits with high flow demand. Required input torque is 53 lb-ft at a 1450 psi differential and rises to 146 lb-ft when the differential reaches 4000 psi, information used for coupling and motor selection. At top speed and 4000 psi the input power climbs to 74 HP, setting the ceiling for electric or diesel drives. The unit weighs 46 lb without fluid, so one technician can position it during installation.
Technical Specifications
Displacement
45 cm³/rev (2.75 in³/rev)
Filling Capacity
0.26 gal (1.0 L)
Flow At 1800 Rpm, Vg Max
21.4 gpm (81 L/min)
Max Axial Force
340 lbf (1500 N)
Max Flow At Nmax, Vg Max
30.9 gpm (117 L/min)
Max Radial Force
340 lbf (1500 N)
Max Speed At Vg < Vg Max
3100 rpm
Max Speed At Vg Max
2600 rpm
Nominal Pressure
4000 psi (280 bar)
Peak Pressure
5100 psi (350 bar)
Power At 1800 Rpm (Δp 4000 Psi)
51 HP (38 kW)
Power At Nmax (Δp 4000 Psi)
74 HP (55 kW)
Pressure Port B
SAE J518 1 in
Torque At Δp 1450 Psi
53 lb-ft (72 Nm)
Torque At Δp 4000 Psi
146 lb-ft (200 Nm)
Weight (without Fluid)
46 lb (21 kg)
1620 Old Apex Road
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