Technical Data - Bosch Rexroth A7VO 63 Series Manual

Technical data

Size
Displacement, geometric, per revolution
Maximum rotational At V
g max
speed 1)
At V
g
Maximum rotational
speed 2)
Flow At V
g max
Power At V
g max
Torque At V
g max
Rotary stiffness
V
g max
V /2 to 0 (interpolated)
g
Moment of inertia rotary group
Maximum angular acceleration
Case volume
Weight (approx.)
▼ Maximum permissible speed (limit speed)
1.5
1.4
1.3
1.2
1.1
1.0
0.9
0.8
0.6 0.7
Displacement V
The values are valid:
1)
‒ At absolute pressure p
abs
‒ For the optimal viscosity range of ν
‒ For hydraulic fluid based on mineral oils.
Maximum rotational speed (speed limit) for increased inlet
2)
pressure p at suction port S and V
abs
< 0.74 × V
g max
and n
nom
, n and Δp = 350 bar
nom
and Δp = 350 bar
to V /2
g
2.3
2.0
1.9
1.8
1.7
1.6
1.5
1.4
1.3
1.2
1.1
1.0
0.9
0.8
0.8 0.9 1.0
/ V
g g max
= 1 bar at suction port S
= 36 to 16 mm 2 /s
opt
< V , see diagram.
g g max
Axial piston variable pump | A7VO Series 63
NG 28
V cm 3 28.1
g max
n rpm 3150
nom
rpm 4250
n
max1
rpm 4750
n
max2
q l/min 89
v
P kW 52
T Nm 156
kNm/rad 5
c
min
kNm/rad 16
c
max
kgm² 0.0042
J
GR
α rad/s² 35900
V l 0.5
m kg 17
Determining operating characteristics
Flow
Torque
Power
Key
V
g
Δp
n
η
v
η
mh
η
t
Notes
▶ 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. Other permissible limit values, such as
speed variation, reduced angular acceleration as a
function of the frequency and the permissible angular
acceleration at start (lower than the maximum angular
acceleration) can be found in data sheet 90261.
Technical data
55 80 107
54.8 80 107
2500 2240 2150
3400 3000 2900
3750 3350 3200
137 179 230
80 105 134
305 446 596
10 16 21
32 49 67
0.0042 0.0080 0.0127
31600 24200 19200
0.75 1.2 1.5
25 40 49
V × n × η
g v
q =
v
1000
V × Δp
g
T =
20 × π × η
mh
2 π × T × n
P = =
60000
= Displacement per revolution [cm
= Differential pressure [bar]
= Rotational speed [rpm]
= Volumetric efficiency
= Mechanical-hydraulic efficiency
=
Total efficiency (η = η × η
t v
RE 92202/02.2015, Bosch Rexroth AG
7
160
160
1900
2560
2850
304
177
891
36
104
0.0253
15300
2.4
71
[l/min]
[Nm]
q × Δp
v
[kW]
600 × η
t
3 ]
)
mh