Checklist
Perform these checks when you inspect the bearings:
•
Inspect the bearings for contamination and damage.
•
Note any lubricant condition and residue.
•
Inspect the ball bearings to see if they are loose, rough, or noisy when you rotate them.
•
Investigate any bearing damage to determine the cause. If the cause is not normal wear, correct
the issue before you return the pump to service.
Replacement bearings
Replacement bearings must be the same as, or equivalent to, those listed in this table.
NOTICE:
Thrust bearings must have machined bronze cages (retainers).
Bearing numbers are based on SKF designations.
Size
Radial Bearing Thrust Bear-
ing
Bearing Housing
Bore
mm | inch
Shaft Turn Thrust
mm | inch
Shaft Turn Radial
mm | inch
10D
6309
7309
100.841 | 3.9701
to
100.788 | 3.9680
45.014 | 1.7722
to
45.004 | 1.7718
45.014 | 1.7722
to
45.004 | 1.7718
20G
6312
7312
131.025 | 5.1585
to
130.963 | 5.1560
60.014 | 2.3628
to
60.002 | 2.3623
60.014 | 2.3628
to
60.002 | 2.3623
21G
30H
6313
7313
140.829 | 5.5445
to
140.767 | 5.5420
65.016 | 2.5597
to
65.004 | 2.5592
65.016 | 2.5597
to
65.004 | 2.5592
31H
40N
6318
7318
192.095 | 7.5628
to
192.0241 | 7.5600
90.017 | 3.5440
to
90.003 | 3.5434
90.017 | 3.5440
to
90.003 | 3.5434
50Q
6320
7320
215.972 | 8.5028
to
215.900 | 8.5000
100.017 | 3.9377
to
100.003 | 3.9371
100.017 | 3.9377
to
100.003 | 3.9371
52Q
58Q
120.017 | 4.7251
to
120.003 | 4.7245
54Q
6224
Bearing housings
Perform these checks when you inspect the bearing housings:
•
Check that the bearing housings are very clean, with no burrs.
•
Remove all loose and foreign material.
•
Check the bearing housing bores against the values in the Ball bearing fits table.
•
Repair or replace housings as necessary.
6.5 Preassembly inspections
3620 i-FRAME API type BB2 single stage / ISO 13709 2nd Ed/API 11th Ed Installation, Operation, and Maintenance
Manual
87
Содержание GOULDS PUMPS i-FRAME 3620
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