SKF - Industrial Shaft Seals

Chemical resistance
In table 2, Chemical resistance († pages 36
to 43), information is provided regarding the resistance
of SKF sealing lip materials to most of
the substances encountered in industrial applications.
The information is based on in-house
testing and the experience of users, as well as
information from the suppliers of the various
materials. Unless otherwise stated, the information
is valid for media of commercial purity
and quality.
The chemical resistance of a seal is influenced
by temperature, pressure and the amount of
media present. Other important factors to consider
when selecting a suitable sealing lip material
include:
1
• type of service (static or dynamic)
• circumferential speed of the sealing lip
• shaft and housing materials
• surface finish of the seal counterface
Because the above mentioned factors also
influence the service life and performance of
the seal, the information contained in the table
Chemical resistance can only be considered as
a rough guide.
Explanation for table 2 († pages 36
to 43), Chemical resistance
RT = room temperature [20 °C (70 °F)]
1 = minor effect
2 = moderate effect
3 = static only
4 = not recommended
5 = insufficient data, test before use
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