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BOSCH REXROTH
R902125886

  • BOSCH REXROTH
  • Material:R902125886
  • Model:AA4VG90EP3D1/32L-NUF52F011SH

Due to extremely high demand, please call 877-366-7226 for availability

***Disclaimer: The following summary contains information gathered from various sources such as product descriptions, technical specifications and catalogs. While efforts have been made to provide accurate details, inaccuracies may occur. It is advised to verify all information by contacting Bosch Rexroth directly.***
The Bosch Rexroth AA4VG90EP3D1/32L-NUF52F011SH (R902125886) is a high-performance axial piston variable pump designed for hydrostatic transmissions in closed circuits. This pump features an integrated boost pump that ensures the supply of boost and pilot oil is consistent and reliable. The flow direction of the pump can be changed smoothly as the swashplate moves through its neutral position, enhancing the operational flexibility of the pump. Equipped with high-pressure relief valves that incorporate a boost function, this model guarantees safety and efficiency in managing system pressures. Additionally, it comes standard with an adjustable pressure cutoff, providing users with control over maximum pressure settings to suit specific application requirements. The AA4VG90EP3D1/32L-NUF52F011SH also includes a boost pressure relief valve which contributes to the overall protection and longevity of the hydraulic system. Its through-drive capability is a significant advantage, allowing for the mounting of additional pumps up to the same nominal size directly onto this unit—this feature is particularly beneficial for systems requiring multiple pumps. Another key aspect of this Bosch Rexroth model is its wide range of control options, which cater to various operational demands and enhance user experience. The swashplate design underscores its efficiency and adaptability in applications requiring precise control over fluid displacement and flow rate. Overall, this axial piston variable pump is engineered for robust performance in demanding environments where reliability and versatility are critical. Its advanced features make it suitable for high-end hydraulic applications that require precise control and efficient power transmission.

Table of values

Size

28 40 56 71 90 125

Displacement
geometric, per revolution

Vg max

cm³

28 40 56 71 90 125

Nominal pressure

pnom

bar

400 400 400 400 400 400

Maximum pressure

pmax

bar

450 450 450 450 450 450

Maximum speed

at Vg max

nnom

rpm

4250 4000 3600 3300 3050 2850

Intermittent 1)

nmax

rpm

5000 5000 4500 4100 3800 3450

Flow

at Vg max and nnom

qV nom

l/min

119 160 202 234 275 356

Power

at qV nom and Δpnom 2)

P

kW

79 107 134 156 183 238

Torque

at Vg max and Δpnom

M

Nm

178 255 357 452 573 796

Weight (approx.)

m

kg

29 31 38 50 60 80
1) At Δp = 70 … 150 bar or Δp < 300 bar and t < 0.1 s
2) Δpnom = 400 bar