You are using an outdated browser. For a faster, safer browsing experience, upgrade for free today.

BOSCH REXROTH
R902148830

  • BOSCH REXROTH
  • Material:R902148830
  • Model:AA4VG90HD3D1/32R-NSF52F021D *FNI*

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 AA4VG90HD3D1/32R-NSF52F021D (R902148830) is a high-performance axial piston variable pump that has been engineered with precision to cater to demanding hydraulic operations. This pump features an integrated boost pump that is essential for both boost and pilot oil supply, ensuring the system operates efficiently by maintaining the necessary pressure levels. The design of this model allows for a smooth flow direction change as the swashplate moves through the neutral position, which is critical for applications requiring precise control over movement and speed. The AA4VG90HD3D1/32R-NSF52F021D is equipped with high-pressure relief valves that incorporate a boost function, providing an extra layer of safety and performance by limiting the maximum pressure within the hydraulic system to prevent potential damage. Moreover, it comes standard with an adjustable pressure cutoff, granting users fine control over the operational parameters to suit specific needs. A notable feature of this Bosch Rexroth pump is its boost pressure relief valve which contributes to the overall reliability and longevity of the system by managing excess pressure. Additionally, it offers versatility through its through-drive capability, allowing for the mounting of additional pumps up to the same nominal size directly onto it—this expands its application range and makes it suitable for complex hydraulic systems requiring multiple pumps. Lastly, its swashplate design is synonymous with robustness and durability in variable displacement pumps. The variety of controls available with this model ensures compatibility with a wide range of equipment and customization according to different application requirements. The AA4VG90HD3D1/32R-NSF52F021D stands out as an integral component in hydraulic systems where high efficiency, adaptability, and reliability are paramount.

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