Flowserve S-series PolyChem - Manual (Page 38)

USER INSTRUCTIONS POLYCHEM S-SERIES ENGLISH 71569207 11-08
Page 38 of 52
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Diameter/tolerance, under bearings:
In order to ensure proper fit between the shaft and
bearings, verify that both the inboard (IB) and
outboard (OB) shaft diameter is consistently within
the minimum/maximum values shown in Figure 6-14.
A micrometer should be used to check these outside
diameter (OD) dimensions on the shaft.
Figure 6-13
Topic
ASME
B73.1
standard
mm (in.)
Suggested
by major
seal
vendors
mm (in.) Suggested
and/or
provided by
Flowserve
mm (in.)
Shaft
Diameter tolerance,
under bearings
n/s 0.005 (0.0002)
Impeller
Balance See note 1
Bearing housing
Diameter (ID) tolerance
at bearings
n/s 0.013 (0.0005)
Power end assembly
Shaft runout
Shaft sleeve runout
Radial deflection - static
Shaft endplay 0.05 (0.002)
0.05 (0.002)
n/s
n/s
0.03 (0.001)
0.05 (0.002)
0.076 (0.003)
0.05 (0.002)
0.05 (0.002)
0.05 (0.002)
0.05 (0.002)
Seal chamber
Face squareness to shaft
Register concentricity 0.08 (0.003) 0.03 (0.001)
0.13 (0.005) 0.08 (0.003)
0.13 (0.005)
Complete pump
Shaft movement caused
by pipe strain
Alignment
Vibration at bearing housing
n/s
n/s
See note 3
0.05 (0.002) 0.05 (0.002)
See note 2
See note 3
n/s = not specified.
1. The maximum values of acceptable unbalance are:
1 500 r/min: 40 g ·mm/kg (1 800 r/min: 0.021 oz-in./lb) of mass.
2 900 r/min: 20 g ·mm/kg (3 600 r/min: 0.011 oz-in./lb) of mass.
Flowserve performs a single plane spin balance on most
impellers. Balancing is performed to the ISO 1940 Grade 6.3
tolerance criteria.
2. ASME B73.1 does not specify a recommended level of alignment.
Flowserve recommends that the motor be aligned to the pump
within 0.05 mm (0.002 in.) parallel Full Indicator Movement (FIM)
and 0.0005 mm/mm (0.0005 in./in.) angular FIM. Closer
alignment will extend MTBPM. For detail discussion of this
subject see Section 5, Installation, of this manual.
3. See ASME B73.1, paragraph 5.1.4.
6.9.4.2 Bearings
It is recommended that bearings not be re-used after
removal from the shaft. Prior to mounting bearings,
check the following parameters.
Diameter/tolerance, inside diameter:
In order to ensure proper fit between bearings and
the shaft, verify that the inside diameter (ID) of both
the IB and OB bearing are consistently within the
minimum/maximum values shown in Figure 6-14. An
inside caliper should be used to check these ID
diameters on the bearings.
Diameter/tolerance, outside diameter:
In order to ensure proper fit between bearings and the
bearing housing, verify that the OD on both the IB and
OB bearings are consistently within the minimum/
maximum values shown in Figure 6-15. A micrometer
should be used to check these OD dimensions on the
bearings.
Figure 6-14a: ISO pumps
Group A Group B Group C
Bearing 30.000/29.990
(1.1811/1.1807)
45.000/44.988
(1.7717/1.7712)
55.000/54.985
(2.1654/2.1648)
Shaft
30.013/30.002
(1.1816/1.1812)
45.014/45.004
(1.7722/1.7718)
55.016/55.004
(2.1660/2.1655)
OB bearing/
shaft
mm (in)
Fit
0.023T/0.002T
(0.0009T/0.0001T)
0.026T/0.004T
(0.0010T/0.0001T)
0.031T/0.004T
(0.0012T/0.0001T)
Bearing 35.000/34.988
(1.3780/1.3775)
45.000/44.988
(1.7717/1.7712)
55.000/54.985
(2.1654/2.1648)
Shaft
35.014/35.004
(1.3785/1.3781)
45.014/45.004
(1.7722/1.7718)
55.016/55.004
(2.1660/2.1655)
IB bearing/
shaft
mm (in)
Fit
0.025T/0.004T
(0.0010T/0.0001T)
0.026T/0.004T
(0.0010T/0.0001T)
0.030T/0.004T
(0.0012T/0.0001T)
Figure 6-14b: ANSI pumps
Group 1 Group 2 Group 2 HD
Bearing 30.000/29.990
(1.1811/1.1807)
50.000/49.988
(1.9685/1.9680)
50.000/49.988
(1.9685/1.9680)
Shaft
30.013/30.002
(1.1816/1.1812)
50.013/50.002
(1.9690/1.9686)
50.013/50.002
(1.9690/1.9686)
OB bearing/
shaft
mm (in)
Fit
0.023T/0.002T
(0.0009T/0.0001T)
0.025T/0.003T
(0.0010T/0.0001T)
0.025T/0.002T
(0.0010T/0.0001T)
Bearing 35.000/34.988
(1.3780/1.3775)
50.000/49.988
(1.9685/1.9680)
60.000/59.985
(2.3622/2.3616)
Shaft
35.014/35.004
(1.3785/1.3781)
50.013/50.002
(1.9690/1.9686)
60.015/60.002
(2.3628/2.3623)
IB bearing/
shaft
mm (in)
Fit
0.026T/0.004T
(0.0010T/0.0001T)
0.025T/0.002T
(0.0010T/0.0001T)
0.030T/0.002T
(0.0012T/0.0001T)
Figure 6-15a: ISO pumps
Group A Group B Group C
Bearing
72.000/71.987
(2.8346/2.8341)
100.000/99.985
(3.9370/3.9364)
120.000/119.985
(4.7244/4.7238)
Carrier
72.017/71.999
(2.8353/2.8346)
100.023/100.002
(3.9379/3.9371)
120.023/120.002
(4.7253/4.7245)
OB
bearing/
carrier
mm (in)
Fit
0.030L/0.000L
(0.0012L/0.0000L)
0.038L/0.002L
(0.0015/0.0001L) 0.028L/0.002L
(0.0015L/0.0001L)
Bearing
72.000/71.987
(2.8346/2.8341)
100.000/99.985
(3.9370/3.9364)
120.000/119.985
(4.7244/4.7238)
Housing
72.017/71.999
(2.8353/2.8346)
100.018/100.002
(3.9377/3.9371)
120.018/120.002
(4.7251/4.7245)
IB
bearing/
housing
mm (in)
Fit
0.030L/0.000L
(0.0012L/0.0000L)
0.033L/0.002L
(0.0013L/0.0001L)
0.033L/0.002L
(0.0013L/0.0001L)
Figure 6-15b: ANSI pumps
Group 1 Group 2 Group 2 HD
Bearing
72.000/71.987
(2.8346/2.8341)
110.000/109.985
(4.3307/4.3301)
110.000/109.985
(4.3307/4.3301)
Carrier
72.017/71.999
(2.8353/2.8346)
110.023/110.007
(4.3316/4.3310)
110.023/110.007
(4.3316/4.3310)
OB
bearing/
carrier
mm (in)
Fit
0.030L/0.000L
(0.0012L/0.0000L)
0.038L/0.007L
(0.0015/0.0003L)
0.038L/0.007L
(0.0015/0.0003L)
Bearing
72.000/71.986
(2.8346/2.8341)
110.000/109.985
(4.3307/4.3301)
110.000/109.985
(4.3307/4.3301)
Housing
72.017/71.999
(2.8353/2.8346)
110.023/110.007
(4.3316/4.3310)
110.023/110.007
(4.3316/4.3310)
IB
bearing/
housing
mm (in)
Fit
0.031L/0.000L
(0.0012L/0.0000L)
0.038L/0.007L
(0.0015L/0.0003L)
0.038L/0.007L
(0.0015/0.0003L)