Flowserve M-series PolyChem User Manual
Page 45

USER INSTRUCTIONS PolyChem M-SERIES ENGLISH 71569218 07-11
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Page 45 of 60
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6.8.1
Wet End
a)
Inspect the bushings, thrust journals and shaft 
for wear. Total diametrical and axial wear limits 
are shown in Figure 6-30. 
b)
Inspect the casing, impeller, holder, inner 
magnet and containment shell for wear, 
corrosion and defects. The nominal liner 
thickness for all components is 3.18 mm (0.125 
inches). 
Figures 6-31 through 6-36 have been provided as a 
guide for identifying the features listed in the table. 
Figure 6-31: Shell 
 
Figure 6-32: Shaft 
 
Figure 6-33: Bushing 
 
Figure 6-34: Inner Magnet
Figure 6-30: Wet end allowable wear
Axial Allowable Bearing Wear (total) 0.38 mm (0.015 in)
Diametrical Allowable Bearing Wear (total) 0.61 mm (0.024 in)
Liner Allowable Wear 25% of thickness
AS NEW DIMENSIONS – NOMIINAL
AXIAL BEARING FEATURES
Group A and 1
Group B and 2
Thrust Journal and Bushing
Thickness
4.78 (0.188)
6.35 (0.250)
Shell Thrust Bushing Depth
95.89 (3.775)
112.27 (4.420)
Shaft Shoulder Thickness
5.21 (0.205)
7.9 (0.31)
Pump Model
Impeller Height
Casing Depth
32-160
49.99 (1.968)
70.79 (2.787)
65-160
50.50 (1.988)
85.24 (3.356)
40-200
51.26 (2.018)
84.89 (3.342)
1.5x1-6
48.97 (1.928)
74.73 (2.942)
3x1.5-6
52.27 (2.058)
78.87 (3.105)
3x2-6
52.27 (2.058)
78.87 (3.105)
1.5x1-8
49.48 (1.948)
75.82 (2.985)
32-250
57.66 (2.270)
92.91 (3.658)
50-250
58.17 (2.290)
93.24 (3.671)
65-250
63.25 (2.490)
98.08 (3.862)
2x1-10
57.66 (2.270)
95.76 (3.770)
3x2-10
56.90 (2.240)
94.92 (3.737)
4x3-10
63.25 (2.490)
101.35 (3.990)
RADIAL BEARING FEATURES
Group A and 1
Group B and 2
Bushing Inside Diameter
38.13 (1.501)
50.04 (1.970)
Shaft Outside Diameter
38.087 (1.4995)
50.000 (1.9685)
ADDITIONAL COMPONENT FEATURES
Group A and 1
Group B and 2
Shell Inside Diameter
124.89 (4.917)
195.83 (7.71)
Inner Magnet
O.D.
121.92 (4.800)
190.04 (7.482)
I.D.
44.450 (1.7500)
50.533 (1.9895)
Width
12.75 (0.502)
12.75 (0.502)
Key Width
12.57 (0.495)
12.57 (0.495)
Note: Dimensions shown above are in millimeters (inches).
Bushing 
I.D. 
Thrust 
Bearing 
Depth 
 
 
Inside 
Diameter 
Bushing
I.D.
Bearing
Holder
Shoulder Thickness
Outside 
Diameter 
Outside 
Diameter 
Width
Inside Diameter
Outside Diameter
