Industrial shaft seals

gab.ru Берг АБ bergab@ya.ru Тел. (495)-228-06-21,
Industrial
факс
shaft seals
(495) 22
Mounting, large diameter seals
General
For the installation of large diameter metal or
rubber-covered seals such as the HDS designs,
first check the bore for proper specification and
condition. Second, coat both the seal and bore
lightly with lubricant (preferably the same
lubricant as that to be retained by the seal).
With large diameter seals the production of a
special mounting tool may not be practical. In
such cases, direct impacts on the seal case or
elements must be avoided when mounting as
this could damage the case or make the
sealing lip unserviceable. Therefore, if no
suitable press tool is available, the use of a
wooden block, long enough to span the seal
outer diameter, is recommended. It is
important, when using this method, that
hammer blows are applied evenly and
sequentially to the wood piece around the seal
circumference, to prevent the seal from tilting
or skewing. SKF also recommends the use of a
dead blow hammer for full energy transfer
with less shock (fig57).
In some applications, the hardware is
designed for two seals in tandem, or a seal
might have to be recessed further into the bore
depth. In those cases the seal is first set flush
with the housing using the method above. Then
a shorter piece of wood should be used to drive
it deeper into the bore utilizing a sequential
pattern (fig58).
3
6 7
1 2
8 5
4
Fig 57
Fig 58
5
2
7
3
4
8
1
6
gab.ru Берг АБ bergab@ya.ru Тел. (495)-228-06-21, факс (495) 87 22