Flowserve N-Series Worthington - Manual (Page 11)

N-SERIES OF THRUST POT USER INSTRUCTIONS ENGLISH 07/14
Page 11 of 20
4.4 Recommended spares
Spares Recommended
Part Normal Maintenance
Bearings complete (antifriction, radial) 1
Bearings complete (antifriction, thrust) 1
Bearing pads only (hydrodynamic, thrust) 1
Gaskets, O-rings (set) 1
4.5 Fastener torques
Tightening torque M
A
Nm (lbf.ft)
Size of
screw
Carbon Steel (NACE)
(A 193 Gr.B7M,
A 320 Gr. L7M)
Carbon Steel
(A 193 Gr. B7,
A 320 Gr. L7, 8.8)
M 4 2,4 (1,8) 2,8 (2,1)
M 5 4,8 (3,6) 5,6 (4,1)
M 6 8,3 (6,1) 9,7 (7,1)
M 8 19,8 (14,6) 23,1 (17)
M 10 39 (28,8) 45,4 (33,5)
M 12 67,8 (50) 78,8 (58,2)
M 14 107,5 (79,3) 125,1 (92,3)
M 16 164,5 (121,4) 191,4 (141,3)
M 18 230 (170) 267 (197)
M 20 321 (237) 373 (276)
M 22 431 (318) 502 (370)
M 24 553 (408) 644 (475)
Above mentioned torques are for all screwed unions, which works under dynamical load. For all other
connections you can use a corresponding smaller torque.