Unit · AXIAL-PISTON PUMP

AA4VG90EP1DT1/32R-NUF52F071D-SR902023144

Axial piston pump Bosch Rexroth series A4VG, type code AA4VG90EP1DT1/32R-NUF52F071D-S, material number R902023144. Nominal size: NG 90. Axial piston unit: swashplate design, variable, nominal pressure 5800 psi (400 bar), maximum pressure 6500 psi (A4V). Operating mode: pump, closed circuit (G). Pressure cut-off: pressure cut-off (D). Stroking chamber pressure port: stroking chamber pressure port X X (T). DA control valve: without DA control valve (1). Direction of rotation: viewed on drive shaft clockwise (R). Sealing material: NBR (nitrile rubber), shaft seal made of FKM (fluorocarbon rubber) (N). Drive shaft: splined shaft ANSI B92.1a only for combination pump – 2nd pump (U). Mounting flange: SAE J744 2+4-hole (F). Working port (port plate): SAE working port A and B, top and bottom suction port S bottom (52). Boost pump: integrated boost pump with and without through drive (F). Through drive: flange SAE J744 Hub for splined shaft, 127-2 (C) 1 1/4 in 14T 12/24DP (07). High-pressure relief valve Setting range ∆pHD: high-pressure relief valve, pilot operated 1450 to 6100 psi with bypass (100 to 420 bar) (1). Filtration boost circuit/external boost pressure supply: filtration in the boost pump pressure line Ports for external boost circuit filtration (Fe and Fa) (D).

Number
R902023144
Type code
AA4VG90EP1DT1/32R-NUF52F071D-S
Group
A4VG 90
Edition
06/2020
AA4VG90EP1DT1/32R-NUF52F071D-S — Drawing
Pos.NumberNameQtyAdd to inquiry
R902087372ROTARY GROUP Assembly parts list →L1
R902025120CONTROL Assembly parts list →L1
R909608821CONNECTION PLATE Assembly parts list →L1
R909606801INTERNAL GEAR PUMP Assembly parts list →L1
R909602227CONTROL UNIT Assembly parts list →L1
R902010618HOUSING1
R902114380PIVOT PIN2
R909405732POITIONING PIN1
R909154480SCREW PLUGD1
R909153338SCREW PLUGD1
R909153371SCREW PLUGD4
R909083228SCREW PLUG1
R909086731O-RINGD1
R909153572SCREW PLUG1
R909426700NOZZLE2
R913016373SLOTTED SPRING PIN2
R909151694SCREW PLUGD2
R909153364SCREW PLUGD4
R909087913SCREW PLUG1
R909154982SETSCREW1
R909087405SEALING NUTD1
R909426706NOZZLE1
R909154478SCREW PLUGD3
R909448824THREADED PART Assembly parts list →L1
98R902095526SEAL KIT1

Parameters from the type code

ItemMeaningCode
Axial piston unitSwashplate design, variable, nominal pressure 5800 psi (400 bar), maximum pressure 6500 psiA4V
Operating modePump, closed circuitG
Size (NG)9090
Pressure cut-offPressure cut-offD
Stroking chamber pressure portStroking chamber pressure port X XT
DA control valveWithout DA control valve1
SeriesSeries 3, index 232
Direction of rotationViewed on drive shaft clockwiseR
Sealing materialNBR (nitrile rubber), shaft seal made of FKM (fluorocarbon rubber)N
Drive shaftSplined shaft ANSI B92.1a only for combination pump – 2nd pumpU
Mounting flangeSAE J744 2+4-holeF
Working port (port plate)SAE working port A and B, top and bottom suction port S bottom52
Boost pumpIntegrated boost pump with and without through driveF
Through driveFlange SAE J744 Hub for splined shaft, 127-2 (C) 1 1/4 in 14T 12/24DP07
High-pressure relief valve Setting range ∆pHDHigh-pressure relief valve, pilot operated 1450 to 6100 psi with bypass (100 to 420 bar)1
Filtration boost circuit/external boost pressure supplyFiltration in the boost pump pressure line Ports for external boost circuit filtration (Fe and Fa)D
Standard/special versionSpecial version-S