Liquiflo H Series Installation, Operation & Maintenance Manual page 35

Liquiflo Installation, Operation & Maintenance Manual
Appendix 3: Wear Allowances (Continued)
Pump Pump
Nom.
Series Model
O.D.
1.163
H1F
1.163
H3F
H5R 1.163
1.163
H5F
H-
H7N 1.711
Series
H7R 1.711
H7F 1.711
1.711
H9R
H9F 1.711
1.163
31F
33F 1.163
35R 1.163
1.163
35F
3-
37R 1.711
Series
37F 1.711
1.711
39R
39F 1.711
311F 1.711
O.D. = Outer Diameter
NOTES:
1 Pump models that are not highlighted in the above table
have gears with an even number of teeth. The diameter
for these gears is measured from the tip of one tooth to
the tip of the opposite tooth (see Photo 1). This meas-
urement method gives the true diameter of the gears.
2 Pump models that are highlighted in the above table have
gears with an odd number of teeth. Because no two teeth
have tips that coincide with the actual gear diameter, this
makes the true gear diameter difficult to measure. A prac-
tical field method for determining gear wear is to measure
the "three-point diameter" of the gear. That is, place one
jaw of the caliper on the tip of one tooth and the other jaw
on the tips of both opposite teeth and record the distance
(see Photo 2). The highlighted diameter values are based
on this measurement method and are less than the true
gear diameters. (For the true nominal gear diameters,
see the chart on Page 39.)
3 All diameter values listed in the above table are based on
standard (untrimmed) parts. Parts requiring viscosity or
temperature trims will have dimensions based on the
application. Consult factory.
Wear Allowances Chart (Units: inches)
Gears Shafts
Min Nom.
O.D. O.D.
1.158 0.375
1.158 0.375
1.158 0.500
1.158 0.500
1.705 0.625
1.705 0.625
1.705 0.625
1.705 0.625
1.705 0.625
1.158 0.375
1.158 0.375
1.158 0.375
1.158 0.375
1.705 0.500
1.705 0.500
1.705 0.625
1.705 0.625
1.705 0.500
I.D. = Inner Diameter
35
MAG-DRIVE Gear Pumps
Models H1-H9, 31-39 & 311 - MC
Wear Plates
Min Nom. Min
O.D. Thick. Thick.
0.373 0.250 0.247
0.373 0.125 0.122
0.498 0.250 0.247
0.498 0.125 0.122
0.623 0.312 0.309
0.623 0.125 0.122
0.623 0.125 0.122
0.623 0.125 0.122
0.623 0.125 0.122
0.373 0.250 0.247
0.373 0.125 0.122
0.373 0.250 0.247
0.373 0.125 0.122
0.498 0.125 0.122
0.498 0.125 0.122
0.623 0.125 0.122
0.623 0.125 0.122
0.498 0.125 0.122
Bearings
Nom. Max
I.D. I.D.
0.375 0.378
0.375 0.378
0.500 0.503
0.500 0.503
0.625 0.628
0.625 0.628
0.625 0.628
0.625 0.628
0.625 0.628
0.375 0.378
0.375 0.378
0.375 0.378
0.375 0.378
0.500 0.503
0.500 0.503
0.625 0.628
0.625 0.628
0.500 0.503
Photo 1
Photo 2