4.3.1.1. Stem nut: finish machining
✔
This working step is only required if stem nut is supplied unbored or with pilot
bore.
Figure 9: Output drive type A
[1]
Stem nut
[2]
Axial needle roller bearing
[2.1] Axial bearing washer
[2.2] Axial needle roller and cage assembly
[3]
Spigot ring
1.
Remove spigot ring [3] from output drive.
2.
Remove stem nut [1] together with axial needle roller bearings [2].
3.
Remove axial bearing washers [2.1] and axial needle roller and cage assemblies
[2.2] from stem nut [1].
4.
Drill and bore stem nut [1] and cut thread.
Information: When fixing in the chuck, make sure stem nut runs true!
5.
Clean the machined stem nut [1].
6.
Apply sufficient "AEROSHELL GREASE 22" to axial needle roller and cage
assemblies [2.2] and axial bearing washers [2.1], ensuring that all hollow spaces
are filled with grease.
7.
Place greased axial needle roller and cage assemblies [2.2] and axial bearing
washers [2.1] onto stem nut [1].
8.
Re-insert stem nut [1] with bearings [2] into output drive.
Information: Ensure that dogs or splines are placed correctly in the keyway of
the hollow shaft.
9.
Screw in spigot ring [3] until it is firm against the shoulder.
13
SAI 07.2 – SAI 16.2 / SARI 07.2 – SARI 16.2
for use in nuclear power plants
Assembly
