Catagory：Rexroth A A10VSO 28 DFR /31R-VPA12K25 Axial piston variable pump
Material Number:
R902572272
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)
Flow:
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.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.Direction of rotation: （What is Direction of rotation？）
Viewed on drive shaft clockwise
7.Sealing material: （What is Sealing material？）
FKM (fluoroelastomer)
8.Drive shaft: （What is Drive shaft？）
Parallel keyed shaft DIN 6885 permissible through-drive torque(18,28,45,71,88,100,140)
9.Mounting flange: （What is Mounting flange？）
ISO 3019-2 2-hole(18,28,45,71,88,100)
10.Working port: （What is Working port？）
SAE flange port fastening at side, opposite(18,28,45,100,140)