Filtration, Cleanliness level and Efficiency β
x
-ratio ( Recommended Minimum)
Cleanliness per ISO 4406
22/18/13
Efficiency β
x
(charge pressure filtration)
β
15-20
= 75 (β
10
≥ 10)
Efficiency β
x
(suction and return line Filtration)
β
35-45
= 75 (β
10
≥ 2)
Recommended inlet screen mesh size
100 – 125 µm
External radial shaft loads, H1P 045/053
H1 pumps are designed with bearings that can accept some external radial loads. The external radial
shaft load limits are a function of the load position and orientation, and the operating conditions of the
unit. External radial shaft loads impact lifetime. For lifetime calculations please contact Danfoss Power
Solutions representative.
The maximum allowable radial load (R
e
) is based on the maximum external moment (M
e
) and the
distance (L) from the mounting flange to the load.
It may be determined using the following formula:
R
e
= M
e
L
Radial load position
P301 168
L
270° R
e
R
e
M
e
180° R
e
90° R
e
0° R
e
M
e
= shaft moment
L = flange distance
R
e
= external force to the shaft
Thrust loads should be avoided. Contact Danfoss Power Solutions in the event thrust loads are
anticipated.
Technical Information
H1 Axial Piston Single Pumps, Size 045/053
Technical specifications
©
Danfoss | May 2017
11063344 | BC00000059en-US1001 | 7
