60
7.12
Torque Value Supplement
Main Flange Studs/Nuts (Casing to Casing Cover)
Stud Size
Torque Value
Inches
¾
7/8
1
1-1/8
ft-lbs
166 - 195
264 - 310
404 - 475
642 - 755
(Nm)
(225 - 264)
(358 - 420)
(548 - 644)
(870 - 1024)
Bearing Housing To Casing Cover
Hex Head Screw Size
Torque Value
Inches
½
5/8
ft-lbs
13 - 16
27 - 33
(Nm)
(18 - 22)
(37 - 45)
Bearing Housing End Cover to Bearing Housing
Hex Head Screw Size
Torque Value
Inches
3/8
ft-lbs
6 - 8
(Nm)
(8 - 11)
Mechanical Seal to Casing Cover
Stud/Nut Size
Torque Value
Inches
1/2
5/8
ft-lbs
26 - 30
45 - 50
(Nm)
(35 - 41)
(58 - 68)
Thrust Bearing Locknut
Torque Value
Bearing Size
7307
7308
7309
7310
7311
7312
7313
7314
ft-lbs
27 - 29
37 - 39
48 - 50
60 - 63
73 - 77
87 - 92
102 - 107
117 - 123
(Nm)
(37 - 39)
(50 - 53)
(65 - 68)
(81 - 85)
(99 - 104)
(118 - 125)
(138 - 145)
(159 - 167)
Inboard/Outboard Flingers
& Oil Thrower
Torque Value
Socket Head Capscrews Size
Inches
1/4
ft-lbs
3 - 4
(Nm)
(4 - 5)
Torque Values listed above are selected to achieve the correct amount of pre-stress in the
threaded fastener. Maintenance personnel must ensure that threads are in good condition (free of
burrs, galling, dirt, etc.) and that commercial thread lubricant is used. Torque should be
periodically checked to ensure that it is at the recommended value.