Industrial shaft seals

gab.ru Берг АБ bergab@ya.ru Тел. (495)-228-06-21,
Industrial
факс
shaft seals
(495) 22
Speedi-Sleeve Gold
This is a recent development and embodies all
the advantages of the original Speedi-Sleeve.
Speedi-Sleeve Gold is equally thin but has a
surface hardness of between 80 and 85 HRC
and thus is much harder than the standard
sleeve. The surface is very resistant to
abrasion – being almost on a par with diamond
coatings, Diagram 10. However, installation is
just as easy and again the tool is supplied with
the sleeve. Thus for heavy-duty applications it
is the preferred choice.
The Speedi-Sleeve Gold has been
thoroughly tested to ascertain its degree of
abrasion resistance in severe dust environments
using both coarse and fine sand. The
tests were carried out at temperatures up to
100 °C and at shaft speeds of up to 8,6 m/s
(28.2 ft/s).
Under these conditions, seals on shafts
without Speedi-Sleeve protection started to
leak after 450 hours on average. Seals on
Speedi-Sleeve Gold ran for an average of
2 500 hours.
In other tests, for example, it was found that
continuous salt spray at 40 °C produced no
trace of corrosion even after 600 hours.
Diagram 10. Abrasion resistance
Comparison of Speedi-Sleeve Gold with various coatings
0
20
40
60
80
100
120
140
160 Nickel plated
Standard
sleeve
Speedi-Sleeve
Gold
Diamond
coating
Testing in highly abrasive conditions demonstrates how
the hardened surface of Speedi-Sleeve Gold resists wear.
gab.ru Берг АБ bergab@ya.ru Тел. (495)-228-06-21, факс 283 (495) 22