Bosch Rexroth 10 Series - Technical Data

RE 92650/2020-03-03, Bosch Rexroth AG
7 Axial piston variable pump | A1VO Series 10
Technical data
Technical data
Size NG 18 28 35
Geometric displacement, per revolution
V
g max
V
g min
cm
3
cm
3
18
0
28
0
35
0
Maximum rotational speed
1)2)
at V
g max
n
nom
rpm 3300 3200 3000
Flow
at n
nom
and V
g max
q
v
l/min 59 89 105
Power
at n
nom
, V
g max
and Δp = 250 bar
P
kW 25 37 44
Torque
at V
g max
and Δp = 250 bar
M
Nm 72 111 139
Rotary stiffness
Drive shaft
3/4 in 11T 16/32DP S3
c
kNm/r
ad
9.78 9.78 –
7/8 in 13T 16/32 DP S4
c
kNm/rad 12.88 12.88 18.6
1 in 15T 16/32DP S5
c
kNm/rad – – 22.9
Ø 20 mm P3
c
kNm/rad 16.49 16.49 –
Ø 19.05 mm K3
c
kNm/rad 17.27 17.27 –
Moment ofinertia oftherotary group
J
TW
kgm
2
0.000686 0.000737 0.00159
Maximum angular acceleration
3)
α
rad/s² 6800 5500 5000
Case volume
V
l 0.5 0.5 0.6
Weight (without through drive) approx.
m
Kg 12.3 12.3 18.4
Weight (with through drive) approx.
m
Kg 13.5 13.5 19.8
Determining theoperating characteristics
Flow
q
v
=
V
g
×n×η
v
[l/min]
1000
Torque
M
=
V
g
×Δp
[Nm]
20×π×η
hm
Power
P
=
2π×M×n
=
q
v
×Δp
[kW]
60000
600×η
t
Key
V
g
Displacement per revolution [cm
3
]
Δp
Differential pressure [bar]
n
Rotational speed [rpm]
η
v
Volumetric efficiency
η
hm
Hydraulic-mechanical efficiency
η
t
Total efficiency (η
t
= η
v
× η
hm
)
Notice
▶ Theoretical values, without efficiency and tolerances;
values rounded.
▶ Operation above themaximum valuesorbelow
theminimum values may result inaloss offunction,
areduced service life orinthe destruction oftheaxial
piston unit. We recommend testing loads through
experimentation orcalculation/simulation and
comparing them with the permissible values.
1) The values are applicable:
‒ forthe optimum viscosity range from ν
opt
= 36 to16 mm
2
/s
‒ with hydraulic fluid onthebasis ofmineral oils
– atapressure ofp
S
≥ 1bar abs.at suction port S.
2) For apressure p
S
<1 bar at suction port S, please contact us.
3) The data are valid forvalues between the minimum required and
maximum permissible rotational speed. Valid forexternal excitation
(e.g. diesel engine 2 to8 times rotary frequency; cardan shaft
twice the rotary frequency). The limit value isonly valid forasingle
pump. The load capacity oftheconnection parts must
beconsidered.