Goulds Pumps JC - IOM - Manual (Page 27)

The running temperature for a bearing assembly depends
on many factors such as speed, bearing loads, ambient air
temperature, and condition of bearings. Temperatures
higher than the human hand can tolerate are very
satisfactory for good bearing operation and should not
cause alarm.
For a given speed and loading, the bearing housing
temperature will stabilize at some temperature, usually
below 200º F, which will be the normal temperature for that
installation. Higher temperatures than this normal
temperature, without any change in speed or loading, can
mean a lubrication difficulty or the approach of a bearing
failure.
TO DISASSEMBLE THE “J”
BEARING
For the purpose of these instructions, assume the JC liquid
end has been disassembled, including suction disc (182),
suction disc liner (100B), impeller (101), casing (100), hub
disc (184), stuffing box components, and shaft sleeve
(126).
1. Pull pump coupling half or sheave from drive end of
shaft.
2. Remove radial bearing slinger (123C) from shaft.
3. Remove jam nuts from adjusting studs (356A) which
fasten bearing frame (228) and thrust bearing housing
(134A). Carefully pull the shaft (122), bearings, and
thrust bearing housing (134A) from the drive end of
bearing frame (228). Support both ends of the shaft
assembly to prevent seal and bearing damage.
4. Detach thrust bearing snap ring (361) from thrust
bearing housing (134A). Slide housing over thrust
bearing.
NOTE: See illustrations for specific thrust bearing
configuration.
5. Remove thrust bearing locknut (136) and lockwasher
(382).
6. Press or pull radial bearing (168C) from shaft (122).
Apply pulling force to inside bearing race only.
JC IOM 5/08
25