WK
3.
Slip the stuffing box gland (452) loosely on shaft (210)
but do not insert it in the stuffing box compartment.
4.
Slip splash ring (507) onto the shaft.
12.4 Assembly of Bearings
12.4.1 Assembly of End Side Bearing
Standard Bearing Construction 1
1.
Mount splash ring (507) onto shaft (210).
2.
Slip bearing housing (350) onto the shaft and onto the
studs on discharge casing (107), and fasten it with the
nuts (920.2) (see Fig. 107).
3.
Mount deep groove ball bearing (321).
4.
Screw hx. shaft nut (920.4) onto the shaft and tighten it.
5.
Mount bearing end cover (361) and gasket (400.4).
6.
Seal the oil drain apertures (13B) by means of threaded
plug (903.4).
7.
In the case of pump size 150, assembly should proceed
as follows :
Mount splash ring (507), circlip (932) and inner spacer
sleeve (525.4) on the shaft.
Insert deep groove ball bearing (321) and outer spacer
sleeve (543) into the bearing bracket (see Fig. 108).
Mount bearing bracket (350) together with inserted
components.
Mount lock washer and hex. shaft nut (920.4) on the shaft.
Pull the nut tight and lock it with the aid of the lock washer.
Mount bearing end cover (361) with gasket (400.4).
Heavy Duty Bearing Construction
(see Fig. 109).
1.
Mount splash ring (507) and circlip (932) on the shaft.
2.
Slip bearing housing (350.2) together with cover (160)
and bearing cover (360.2) onto the shaft and studs (902.3)
on the discharge casing and fasten it with the nuts (920.2).
3.
Slip spacer sleeve (525.5) onto the shaft until it abuts
against circlip (932).
4.
Slip inner guide bush (508) and lubricating (644) onto the
shaft.
Caution :
The angular contact ball bearings must be mounted
in ‘‘X’’ arrangement. To facilitate mounting, it is advisabble to
pre-heat the angular contact ball bearings in an oil bath before
they are slipped onto the shaft.
5.
Mount inner angular contact ball bearing (320), inner
distance ring (525.*0, outer spacer sleeve (543) and outer
angular contact ball bearing (320) onto shaft (210).
6.
Screw shaft nut (923) onto shaft, and pull it tight. Insert
lubricating ring (644).
7.
Mount bearing end cover (361) with O-ring (412.7) and
pull it tight with the aid of hex. bolts (901.3).
12.4.2 Assembly of Drive End Bearing
1.
Mount splash ring (507) on shaft (210).
2.
If necessary, insert outer race of cylindrical roller bearing
(322) in the bearing housing (see Fig. 76).
Fig. 107 Bearing
construction, pump
sizes 40 to 125
Fig. 108 Bearing
construction, pump size 150
361 920.4 321 350
903.12 400.4 920.4 350 525.4
507
932
321
543
361
400.4
903.4
(13B)
507
Fig. 109 Heavy duty bearing bracket construction on pump
size 150.
901.3
361
913
350.2
412.7
507
210
350
508
320
320
923
412.7
903.5
(13B)
644
400.5
160
543
525.8
901.4
644
720.3
(8B)360.2
525.5
902.3
Fig. 110 Bearing construction, pump sizes 40 to 125
350 731.2 322 400.4 901.2
507
52-1 360
210
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