KSB WK Series User Manual

WK
Standard Construction
Pump size 40 50 65 80 100 125 150
Drive end :
cylindrical roller bearing NU 206 K NU 207 K NU 207 K NU 208 K NU 208 K NU 210 K NU 410
designation in accordance C 3 C 3 C 3 C 3 C 3 C 3 C 3
with DIN 5412
Adaptor sleeve in
accordance with DIN 5412
H 206 H 207 H 207 H 208 H 208 H 210 ---
Non Drive end :
Deep groove ball bearing
designation in accordance 6403/C 3 6404/C 3 6404/C 3 6405/C 3 6405/C 3 6405/C 3 6410/C 3
with DIN 625
Oil fill in litres 0.16 0.18 0.18 0.25 0.25 0.28 0.45
Heavy Duty Bearing Bracket
Pump size 40 50 65 80 100 125 150
Drive end :
cylindrical roller bearing NU 206 K NU 207 K NU 207 K NU 208 K NU 208 K NU 210 K NU 410
designation in accordance C 3 C 3 C 3 C 3 C 3 C 3 C 3
with DIN 5412
Adaptor sleeve in
accordance with DIN 5415
H 206 H 207 H 207 H 208 H 208 H 210 ---
Non Drive end :
Angular contact ball bearing
Din 628, 7305 BG 7306 BG 7306 BG 7307 BG 7307 BG 7309 BG 7310 BG
matched pair, X arrangement
7305 B. UA 7306 B. UA 7306 B. UA 7307 B. UA 7307 B. UA 7309 B. UA 7310 B. UA
Manufacturer SKF
FAG
Oil fill in litres 0.65 0.70 0.70 0.90 0.90 1.2 1.2
Drive at both Ends
Pump size 40 50 65 80 100 125 150
Suction side :
cylindrical roller bearing NU 206 K NU 207 K NU 207 K NU 208 K NU 208 K NU 210 K NU 410
designation in accordance C 3 C 3 C 3 C 3 C 3 C 3 C 3
with DIN 5412
Adaptor sleeve in
accordance with DIN 5412
H 206 H 207 H 207 H 208 H 208 H 210 ---
Discharge side :
Deep groove ball bearing
designation in accordance 6305/C 3 6306/C 3 6306/C 3 6307/C 3 6307/C 3 6308/C 3 6410/C 3
with DIN 625
Oil fill in litres 0.16 0.18 0.18 0.25 0.25 0.28 0.45
Fig. 10 Bearing end oil requirement table
In case of the pump construction with drive at both ends, the
bearing arrangement at the suction end corresponds to the
standard construction. At the discharge end, deep groove ball
bearings in accordance with DIN 625 are fitted, but they are of
bearing series 63.
See Fig. 10 ‘‘Bearing and oil requirement table’’ for precise
bearing designation and size for the individual pump sizes.
Splash ring (507) on shaft (210) prevent the penetration of
any leakage liquid from the stuffing box into the bearing
housing.
1.4 Lubrication
1.4.1 Oil Lubrication
Standard construction WK pumps are provided with oil splash
lubrication. The antifriction bearings are slightly submerged in
the oil sump, ensuring perfectly satisfactory lubrication at all
times. The max. oil level is automatically attained during topping
up when oil starts pouring out of the over-flow holes in the
bearing covers (360/361).
On request, we can fit constant level oilers (638), which will
necessitate the sealing of the shaft against the bearing bracket
by means of felt rings (422.1) (See Fig. 11 to 13).
3

KSB WK Series Specifications

General

Brand	KSB
Model	WK Series
Category	Water Pump
Language	English