BOSCH REXROTH
R902148755
- BOSCH REXROTH
- Material:R902148755
- Model:AA4VG90DA2D8/32R-NSF52F071KP-S *FNI*
Due to extremely high demand, please call 877-366-7226 for availability
The Bosch Rexroth AA4VG90DA2D8/32R-NSF52F071KP-S (R902148755) is a highly efficient axial piston variable pump designed for hydrostatic transmissions in closed circuits. This particular model boasts an integrated boost pump that ensures both boost and pilot oil supply, enhancing the overall performance and reliability of the system. The flow direction within the pump changes smoothly, which is facilitated by the movement of the swashplate through its neutral position. This feature contributes to the precise control of the hydraulic drive. In terms of safety and operational control, this model comes with high-pressure relief valves that incorporate a boost function. Additionally, it includes an adjustable pressure cutoff as a standard feature, allowing for customizable pressure settings to suit specific application requirements. The boost pressure relief valve is another critical component that contributes to the pump's ability to manage system pressures effectively. For those applications requiring additional hydraulic functions, this pump offers a through-drive capability. This allows for the mounting of further pumps up to the same nominal size directly onto the AA4VG90DA2D8/32R-NSF52F071KP-S unit without needing additional adapters or couplings. Such modularity and expandability make it suitable for complex hydraulic systems needing multiple pump configurations. The variety of controls available with this model provides flexibility in application use, making it adaptable to various operational demands. Finally, its swashplate design is instrumental in delivering not only high efficiency but also long service life and reduced operational costs due to minimized wear over time. Overall, Bosch Rexroth's AA4VG90DA2D8/32R-NSF52F071KP-S (R902148755) variable piston pump stands out with its advanced features designed for robust performance in demanding hydraulic applications.
Table of values
|
Size |
28 | 40 | 56 | 71 | 90 | 125 | |||
|
Displacement |
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 |