Rexroth A A10VSO 71 DFR /31R-VSA44N00 Pump

Catagory:Rexroth  A A10VSO 71 DFR /31R-VSA44N00  Axial piston variable pump

Material Number:


1. Axial piston unit:What is Axial piston unit?

Swashplate design, variable, nominal pressure 280 bar, maximum pressure 350 bar(18,28,45,71,88,100,140)

2. Operating mode:(What is Operating mode?)

Pump, open circuit

3. Size (NG):71(What is Size (NG)?

Displacement, geometric, per revolution:71(Vg max cm3)

   Rotational speed maximum :

a)at Vg max:2200(nnom rpm)

b)at Vg<Vg max:2600(nmax perm rpm)


a)at nnom and Vg max:156(qv max l/min)

b)at nE= 1500 rpm and Vg max:107(qvE max l/min)

Power at Δp = 280 bar:

a)at nnom, Vg max:73(P max kW)

b)at nE= 1500 rpm and Vg max:50(PE max kW)

Torque at Vg max and:

a)Δp = 280 bar:316(T max Nm)

b)Δp = 100 bar:113(T Nm)

Rotary stiffness of drive shaft:

a)S:71884(c Nm/rad)

b)R:76545(c Nm/rad)

c)P:80627(c Nm/rad)

Moment of inertia for the rotary group:0.0083(JTW kgm2)

Case volume:1.6(V l)

Weight without through drive (approx.):35.2(m kg)

Weight with through drive (approx.):38(m kg)

4. Control device:What is Control device?

with flow controller hydraulic X-T open(18,28,45,71,88,100,140)

5. Series:(What is Series?)

Series 3, index 1

6. The direction of rotation:What is Direction of rotation?

Viewed on drive shaft clockwise

7. Sealing material:(What is Sealing material?)

FKM (fluoroelastomer)

8. Driveshaft:What is Drive shaft?

Splined shaft  ANSI B92.1a standard shaft (18,28,45,71,88,100,140)

9. Mounting flange:(What is Mounting flange?)

ISO 3019-2 2-hole (18,28,45,71,88,140)

10. Through drive:(What is Through drive?)

without through drive (18,28,45,71,88,100,140)