ITT Goulds Pumps i-FRAME 3640, Installation, Operation And Maintenance Manual

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6.5.3 Bearings inspection
Condition of bearings
Do not reuse bearings. The condition of the bearings provides useful information on operating conditions
in the bearing frame.
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 Bearing
Bearing Housing
Bore Shaft Turn
mm | inch mm | inch
22G 6312 7312 130.038 | 5.1196
to
130.014 | 5.1187
60.014 | 2.3628
to
60.002 | 2.3623
32J 6217 7314 150.038 | 5.9070
to
150.014 | 5.9061
85.019 | 3.3472
to
85.005 | 3.3466
42N 6318 7318 190.043 | 7.4820
to
190.015 | 7.4809
90.017 | 3.5440
to
90.003 | 3.5434
51Q 6320 7320 TBD TBD
56Q 6224 7320 TBD TBD
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
3640 i-FRAME API Type BB2 2-Stage / ISO 13709 2nd Ed. API 11th Ed. Installation, Operation, and Maintenance Man-
ual 87