Flowserve T-series Thrust Bearing Pot - Manual (Page 8)

USER INSTRUCTIONS T-SERIES THRUST BEARING POT ENGLISH 26999907 01-2013
Page 8 of 24 flowserve.com
recirculation of the oil lubrication and includes an oil
level gage to check the lubricant oil level.
3.3.2
Bearings
The bearings [3010 and 3011] are hydrodynamic
rolling element type ball or roller bearings sized to
absorb the pump vertical thrust and pump rotor
weight from the centering sleeve [2470].
The thrust bearing [3010] absorbs the pump
hydraulic down thrust and the pump rotor weight.
The line bearing [3011] guides the rotating
components and absorbs the pump up-thrust
produced at start-up in most vertical pumps.
3.3.3
Centering sleeve
The centering sleeve [2470] connects mechanically
with an axial setting adjusting nut [2909], the pump
rotor and the bearings.
3.3.4 Bearing cover
The Bearing cover [3260] and upper bearing
housing [3210] provide sealing to the bearing
housing [3200] against the atmosphere.
It incorporates the oil filling connection and holds
the line bearing [3011] in position.
3.3.5
Thrust axial setting adjusting nut
The axial setting control adjusting nut [2909]
connects mechanically with the centering sleeve
[2470], the pump rotor and the bearings. This
allows control of the pump rotor axial regulation
play.
3.3.6
Accessories
Accessories may be fitted when specified.
Fan cooling is not available for these designs of
thrust bearing pot as a default; available designs
for special requirements or applications must be
consulted with Flowserve representative.
3.4 Performance and operating limits
3.4.1
Load capacity
Size Description
Load capacity
Max. speed Max. shaft dia
Max. torque
(11 – 13 % Cr. Shaft) Dynamic (C) Static (C
0
)
kN (lbf (x1 000)) rpm mm (in.) kNm (lbf•ft (x1 000))
7211B
Single row angular
contact bearing
46.2 (10.4) 28.5 (6.4) 6 450 31.8 (1.25) 0.29 (0.21)
7218B 106 (23.8) 73.5 (16.5) 4 000 57.2 (2.25) 3.48 (2.57)
7318B 156 (35.1) 114 (25.6) 3 570 57.2 (2.25) 3.48 (2.57)
7322B 225 (50.6) 193 (43.4) 2 850 69.9 (2.75) 6.90 (5.09)
7211B + 6013
Single row angular
contact and radial
ball bearing
46.2 (10.4) 28.5 (6.4) 6 060 31.8 (1.25) 0.29 (0.21)
7218B + 6020 106 (23.8) 73.5 (16.5) 4 000 57.2 (2.25) 3.48 (2.57)
7318B + 6022 156 (35.1) 114 (25.6) 3 570 57.2 (2.25) 3.48 (2.57)
7322B + 6028 225 (50.6) 193 (43.4) 2 850 69.9 (2.75) 6.90 (5.09)
29417 + 22217
Spherical thrust
and spherical
roller bearing
633 (142) 900 (202) 1 900 57.2 (2.25) 3.48 (2.57)
29420 + 22220 863 (194) 1 250 (281) 1 600 69.9 (2.75) 6.90 (5.09)
29424 + 22224 1 170 (263) 1 760 (395) 1 300 76.2 (3.0) 9.60 (7.08)
3.4.2
Maximum down thrust
Size
Max. instant
up-thrust
Max down thrust for L
10h
= 16 000 hours Nett
weight kN (lbf (x1 000)) @ rpm
kN
(lbf ( x1000))
3 500 2 900 1 750 1 460 1 170 880 kg (lb)
7211B
N/A
5.4 (1.2) 5.7 (1.3) 6.8 (1.5) 7.2 (1.6) 7.8 (1.8) 8.6 (1.9) 20 (44)
7218B 12.4 (2.8) 13.2 (2.9) 15.6 (3.5) 16.6 (3.7) 17.9 (4) 19.7 (4.4) 40 (88)
7318B 18.2 (4.1) 19.4 (4.3) 23.0 (5.2) 24.4 (5.5) 26.3 (5.9) 29 (6.5) 48 (106)
7322B 28.0 (6.3) 33.2 (7.4) 35.2 (7.9) 38 (8.5) 41.8 (9.4) 50 (132)
7211B + 6013
13.5 (3.0)
5.4 (1.2) 5.7 (1.3) 6.8 (1.5) 7.2 (1.6) 7.8 (1.8) 8.6 (1.9) 22 (49)
7218B + 6020 12.4 (2.8) 13.2 (2.9) 15.6 (3.5) 16.6 (3.7) 17.9 (4) 19.7 (4.4) 58 (128)
7318B + 6022 18.2 (4.1) 19.4 (4.3) 23.0 (5.2) 24.4 (5.5) 26.3 (5.9) 29 (6.5) 67 (148)
7322B + 6028 28.0 (6.3) 33.2 (7.4) 35.2 (7.9) 38 (8.5) 41.8 (9.4) 110 (243)
29417 + 22217
37.4 (8.4)
68 (15) 72 (16) 77 (17) 84 (19) 86 (190)
29420 + 22220 98 (22) 105 (23) 114 (26) 276 (608)
29424 + 22224 142 (32) 155 (35) 276 (608)