Rexroth A A10VSO 28 DFLR/31R-VPA12K01 Pump

Catagory:Rexroth A A10VSO 28 DFLR/31R-VPA12K01  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):28 (What is Size (NG)?

Displacement, geometric,per revolution :28(Vg max cm3)

   Rotational speed maximum :

a)at Vg max:3000(nnom rpm)

b)at Vg<Vg max:3600(nmax perm rpm)


a)at nnom and Vg max:84(qv max l/min)

b)at nE= 1500 rpm and Vg max:42(qvE max l/min)

Power at Δp = 280 bar:

a)at nnom, Vg max:39(P max kW)

b)at nE= 1500 rpm and Vg max:20(PE max kW)

Torqueat Vg max and:

a)Δp = 280 bar:125(T max Nm)

b)Δp = 100 bar:45(T Nm)

Rotary stiffness of drive shaft:

a)S:22317(c Nm/rad)

b)R:26360(c Nm/rad)

c)P:25656(c Nm/rad)

Moment of inertia for rotary group:0.0017(JTW kgm2)

Case volume:0.7(V l)

Weight without through drive (approx.):18(m kg)

Weight with through drive (approx.):19.3(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?)

FKM (fluoroelastomer)

7.Drive shaft: What is Drive shaft?

Parallel keyed shaft DIN 6885 permissible through-drive torque(18,28,45,71,88,100,140)

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 at side, opposite(18,28,45,100,140)

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

82-2 (A) 5/8 in 9T 16/32DP(18,28,45,71,88,100,140)