4 Description of the Pump (Set)
19 of 72
HPK
Bearings
Design specifications Motor-end bearing:
▪
Fixed bearing
▪
Paired angular contact ball bearing
▪
Axial movement of the rotor limited to 0.5 mm maximum
▪
Oil lubrication
Pump-end bearing:
▪
Radial bearing
▪
Cylindrical roller bearing
▪
Absorbs radial loads only
▪
Oil lubrication
Bearing bracket designation Example: P10as
Table 7:
Bearing bracket designation
Code
Description
P
Bearing bracket
10
Size code (based on dimensions of seal chamber and shaft
end)
a
Reinforced bearing bracket (next bearing size up)
s
Paired angular contact ball bearings (drive end)
Bearings used
Table 8:
Bearing design
KSB designation
FAG designation
SKF designation
B.G
B-TVP-UA
BECBP
Table 9:
Bearing design
Bearing bracket
Cylindrical roller bearing
(DIN 5412)
Angular contact ball
bearing (DIN 628)
P08s
NU 416
7319 B. G
P10as
NU 324
7324 B. G
P12s
NU 324
7324 B. G