Catagory：Rexroth A A10VSO 18 DR1 /31R-VPA12N00 Axial piston variable pump
Material Number:
R902532873
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):18（What is Size (NG)？）
Displacement, geometric,per revolution :18(Vg max cm3)
Rotational speed maximum :
a)at Vg max:3300(nnom rpm)
b)at Vg<Vg max:3900(nmax perm rpm)
Flow:
a)at nnom and Vg max:59(qv max l/min)
b)at nE= 1500 rpm and Vg max:27(qvE max l/min)
Power at Δp = 280 bar:
a)at nnom, Vg max:28(P max kW)
b)at nE= 1500 rpm and Vg max:12.6(PE max kW)
Torqueat Vg max and:
a)Δp = 280 bar:80(T max Nm)
b)Δp = 100 bar:30(T Nm)
Rotary stiffness of drive shaft:
a)S:11087(c Nm/rad)
b)R:14850(c Nm/rad)
c)P:13158(c Nm/rad)
Moment of inertia for rotary group:0.00093(JTW kgm2)
Case volume:0.4(V l)
Weight without through drive (approx.):12.9(m kg)
Weight with through drive (approx.):14(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？）
without through drive(18,28,45,71,88,100,140)