Rexroth A A10VSO 71 DFEH/31L-PRA12KC3 -SO479 Pump

Catagory:Rexroth A A10VSO 71 DFEH/31L-PRA12KC3 -SO479  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)

Torqueat 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 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.Series:What is Series?

Series 3, index 1

5.Direction of rotation: What is Direction of rotation?

Viewed on drive shaft counter-clockwise

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

NBR (nitrile rubber) only if using HFA, HFB and HFC hydraulic fluids

7.Drive shaft:What is Drive shaft?

Splined shaft ANSI B92.1a similar to shaft “S” however for higher input torque(18,28,45,71,88)

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

ISO 3019-2 2-hole(18,28,45,71,88,100)

9.Working port:What is Working port?

SAE flange port fastening thread, metric at side, opposite(18,28,45,100,140)