Series 90 Axial Piston Pumps Technical Information Features and options MOUNTING FLANGE LOADS
Adding tandem mounted auxiliary pumps and/or subjecting pumps to high shock loads may result in excessive loading of the mounting flange. The overhung load moment for multiple pump mounting may be estimated as shown in the accompanying figure. Overhung load example
Estimating overhung load moments W = Weight of pump (kg) L = Distance from mounting flange to pump center of gravity (m) (refer to pump installation drawings) MR = GR (W1L1 + W2L2 + ... + WnLn) MS = GS (W1L1 + W2L2 + ... + WnLn) Where: MR = MS = GR = GS = *
Rated load moment (N•m) Shock load moment (N•m) Rated (vibratory) acceleration (G’s) * (m/sec²) Maximum shock acceleration (G’s) * (m/sec²)
Calculations will be carried out by multiplying the gravity (g = 9.81 m/sec²) with a given factor. This factor depends on the application.
Allowable overhung load moment values are shown in the accompanying table. Exceeding these values requires additional pump support. Allowable overhung load moments
22
250 - 127
Frame size
Rated moment (MR)
Shock load moment (M S)
042
N•m 860
lbf•in 7600
N•m 3020
lbf•in 26 700
055 075
1580 1580
14 000 14 000
5650 5650
50 000 50 000
100
1580
14 000
5650
50 000
130 180
3160 6070
28 000 54 000
10 730 20 600
95 000 182 000
250
6070
54 000
20 600
182 000
520L0603 • Rev FB • July 2007
