Technical Specifications And Data - Variable Displacement Motors - Sauer Danfoss 51 Series Service Manual

Bent Axis Variable Displacement Motors

Technical Specifications and Data - Variable Displacement Motors

Design
Piston motor with variable displacement, bent axis
construction.
Type of Mounting
SAE four (4) bolt flange – SAE Flange Configuration.
Two (2) bolt flange – Cartridge Motor Configuration.
Pipe Connections
Main pressure ports:
Remaining ports:
Direction of Rotation
Clockwise and counter-clockwise.
Installation Position
Installation position discretionary. The housing must
always be filled with hydraulic fluid.
System Pressure Range, Input
Max:
Min:
Case Pressure
Max. Continuous:
Intermittent (Cold start): 5 bar (73 psi)
Displacement
Continuous speed
Max. speed
Theoretical
torque
Max. continuous
flow
Max. corner power
Mass moment
of inertia
Weight
(with control N2)
20
SAE flange
SAE O-ring thread
480 bar (6960 psi)
10 bar (145 psi)
3 bar (44 psi)
Dimension
maximum cm
in
minimum cm
in
at max disp min -1
-1
at min disp min
at max disp min -1
at min disp min -1
at max disp Nm / bar
lbf•in / 1000 psi
at min disp Nm / bar
lbf•in / 1000 psi
Q max L / min
gal / min
Pcorner max kW
hp
J kg • m
lbf • ft
m kg
lb
Hydraulic Fluid
Refer to Sauer-Sundstrand publication BLN-9887 or
697581.
Temperature
ϑ min
ϑ nominal
ϑ max
1)
at the hottest point, normally the case drain line.
Hydraulic fluid viscosity must be as shown below.
Fluid Viscosity Limits
ν min =
ν min =
ν min =
ν max = 110 mm
ν max = 1600 mm
Filtration
Acceptable contamination level: ISO Code 18/13 or
better. Refer to Sauer-Sundstrand publication BLN-9887
or 697581.
060
3 60.0
3 3.66
3
12.0
3
0.73
(rpm) 3600
(rpm) 5600
(rpm) 4400
(rpm) 7000
0.95
583
0.19
117
216
57
336
450
2
0.0046 0.0071
2 0.1092 0.1685
28
62
1)
= -40°C (-40°F), intermittent, cold start
= 104°C (220°F), continuous
= 115°C (240°F), intermittent
5 mm 2 /s (42 SUS)
6.4 mm 2 /s (47 SUS)
13 mm 2 /s (70 SUS)
2 /s (510 SUS)
2 /s (7400 SUS) intermittent, cold start
Frame Size
080 110
80.7 109.9
4.92 6.71
16.1 22.0
0.98 1.34
3100 2800
5000 4500
4000 3600
6250 5600
1.28 1.75
784 1067
0.26 0.35
156 214
250 308
66 81
403 492
540 660
0.0128
0.3037
32 44
71 97
Series 51
intermittent
min. continuous
optimum
max. continuous
160 250
160.9 250.0
9.82 15.26
32.2 50.0
1.96 3.05
2500 2200
4000 3400
3200 2700
5000 4250
2.56 3.98
1563 2428
0.51 0.80
313 486
402 550
106 145
644 850
864 1140
0.0234 0.0480
0.5553 1.1580
56 86
123 190
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