Industrial shaft seals

gab.ru Берг АБ bergab@ya.ru Тел. (495)-228-06-21,
Industrial
факс
shaft seals
(495) 22
Because of their useful properties, SKF
produces fluoro rubber seals for all common
shaft diameters from 3 to 1.575 mm.
At temperatures above 300 °C, fluoro rubber
gives off dangerous fumes. This can occur, for
example, if a welding torch is used when
dismounting a bearing. Although the fumes are
only produced at high temperatures, once
heated the seals will be dangerous to handle
even when they have cooled down. If it is
necessary to handle fluoro rubber seals which
have been subjected to excessive temperatures,
the following should be observed:
N protective goggles and gloves should
always be worn,
N the remains of seals should be put in an
airtight plastic container which should be
marked with a suitable symbol for “material
will etch”,
N respect the information given on the
appropriate safety data sheet.
Polytetrafluoro-ethylene
Polytetrafluoro-ethylene, PTFE, is a
thermoplastic polymer, the chemical resistance
of which is far superior to that of any of the
materials so far described. The operating
temperature range extends from –70 to +200
°C and may go up to +260 °C. The effects of
overheating are as described under fluoro
rubber.
PTFE has a smooth dirt-resistant surface
and a very low coefficient of friction. The seals
will tolerate dry running and also provide
insulation against the passage of electric
current.
SKF seals of PTFE, or with PTFE sealing lips,
are made to special order and represent
tailored solutions to specific problems.
If there is unintentional contact, hands should
be washed with soap and plenty of water and
water should also be used as an eye bath. A
doctor should always be consulted. This also
applies if, during heating of the seals, the
vapours have been inhaled. SKF takes no
responsibility for the improper handling of
fluoro rubber seals nor for any injury resulting
therefrom. The user is responsible for the
correct use of the product during its service life
and its proper disposal.
gab.ru Берг АБ bergab@ya.ru Тел. (495)-228-06-21, факс (495) 29 22