For definitions of the following specifications, see
H1 Axial Piston Pumps, Basic Information
11062168,
chapter
Operating parameters
.
H1T general specifications
Design
Axial piston pump of cradle swashplate design with variable displacement
Direction of rotation
Clockwise, counterclockwise
Pipe connections
Main pressure ports 045/053:
SAE straight thread O-ring boss
Main pressure ports 060/068:
ISO split flange boss
Remaining ports:
SAE straight thread O-ring boss
Recommended installation
position
Pump installation position is discretionary, however the recommended control position is on the top or at the side,
with the top position preferred. If the pump is installed with the control at the bottom, flushing flow must be
provided through port M14 located on the EDC and FNR control. Vertical input shaft installation is acceptable.
The housing must always be filled with hydraulic fluid.
Recommended mounting for a multiple pump stack is to arrange the highest power flow towards the input source.
Consult Danfoss for nonconformance to these guidelines.
Auxiliary cavity pressure
Will be inlet pressure with the charge pump option. For reference see operating parameters on next page.
Will be case pressure with external charge supply. Please verify mating pump shaft seal capability.
Technical data H1 Tandem
Feature
Size 045
Size 053
Size 060
Size 068
Displacement
45.0 cm
3
[2.75 in
3
]
53.8 cm
3
[3.28 in
3
]
60.4 cm
3
[3.69 in
3
]
68.0 cm
3
[4.15 in
3
]
Flow at rated (continuous) speed
*
153 l/min
[40 US gal/min]
183 l/min
[48 US gal/min]
210 l/min
[55.5 US gal/min]
238 l/min
[62.8 US gal/min]
Torque at maximum displacement
(theoretical)
0.8 N•m/bar
[488 lbf•in/1000 psi]
0.9 N•m/bar
[549 lbf•in/1000 psi]
0.96 N•m/bar
[590 lbf•in/1000 psi]
1.08 N•m/bar
[610 lbf•in/1000 psi]
Mass moment of inertia of rotating
components
0.0078 kg•m
2
[0.00575 slug•ft
2
]
0.0077 kg•m
2
[0.00568 slug•ft
2
]
0.01431 kg•m
2
[0.01055 slug•ft
2
]
0.01427 kg•m
2
[0.01052 slug•ft
2
]
Mass (weight) dry
65 kg [143 lb] (without charge pump or auxiliary
flange)
96.2 kg [212 lb]
Oil volume
2.3 l [0.61 US gal]
4.2 l [1.1 US gal]
Mounting flange
ISO 3019-1 flange 101-2 (SAE B), Special bolt diameter
ISO 3019-1 flange 127-4 (SAE C)
Input shaft outer diameter,
splines and tapered shafts
ISO 3019-1, outer Ø25 mm - 4 (SAE B-B, 15 teeth)
ISO 3019-1, outer Ø32 mm - 4 (SAE-C, 14 teeth)
ISO 3019-1, outer Ø31 mm - 4 (19 teeth)
Conical keyed shaft end similar to ISO 3019-1 code
25-3, taper 1:8
ISO 3019-1, outer Ø32 mm - 4 (SAE C, 14 teeth)
ISO 3019-1, outer Ø35 mm - 4 (SAE-C, 21 teeth)
Conical keyed shaft end similar to ISO 3019-1 code
32-3, taper 1:8
Auxiliary mounting flange
with metric fasteners,
Shaft outer diameter and splines
ISO 3019-1, flange 82 - 2, outer Ø16 mm - 4 (SAE A, 9
teeth)
ISO 3019-1, flange 82 - 2, outer Ø19 mm - 4 (SAE A, 11
teeth)
ISO 3019-1, flange 101 - 2, outer Ø22 mm - 4 (SAE B, 13
teeth)
ISO 3019-1, flange 101 - 2, outer Ø25 mm - 4 (SAE B-B,
15 teeth)
ISO 3019-1, flange 101 - 2, outer Ø22 mm - 4 (SAE B, 13
teeth)
ISO 3019-1, flange 101 - 2, outer Ø25 mm - 4 (SAE B-B,
15 teeth)
Charge inlet port
Port ISO 11926-1 –
7
∕
8
-14 (SAE O-ring boss)
Port ISO 11926-1 – 1
1
∕
16
-14 (SAE O-ring boss)
Main port configuration
ISO 11926-1 – 1
5
∕
16
-12 (SAE O-ring boss)
ISO 6162 M12 x 1.75 (split flsnge)
Case drain port L3
(use for cooling purposes)
Port ISO 11926-1 – 1
1
∕
16
-12 (SAE O-ring boss)
Port ISO 11926-1 – 1
5
∕
16
-12 (SAE O-ring boss)
Service Manual
H1 45/53/60/68 Tandem Closed Circuit Axial Piston Pumps
Technical Specifications
22 |
©
Danfoss | June 2018
520L0928 | AX00000103en-US0303
