Catagory：Rexroth A A10VSO 71 DFEO/31R-PRA12KD3 Axial piston variable pump
Material Number:
R902411571
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)
Flow:
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 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 (18,28,45,71,88,140)
9.Working port:（What is Working port？）
SAE flange port fastening thread, metric at side, opposite(18,28,45,100,140)