Industrial shaft seals

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Wear
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sleeves
АБ bergab@ya.ru Тел. (495)-228-06-21, факс (495) 22
Large diameter wear sleeves
Fig 82. LDSLV3 with a flange
Fig 83. Flangeless LDSLV4
General
Large diameter wear sleeves, (LDSLV), are
used primarily for applications where no
Speedi-Sleeve is available, i.e. for shafts in the
diameter range 203 to 1 150 mm (8 to 45 in).
Two designs of LDSLV are produced; the
LDSLV3 with a flange (fig 82) and the
flangeless LDSLV4 (fig 83). Their use is
recommended in all cases where the operating
conditions for the seals are difficult,
particularly where solid contaminants can
reach the seal lip, e.g. in rolling mills and
chemical plants. These are cases where seal
wear and damage of the counterface on the
shaft can be expected.
It is recommended that LDSLV are designed
into the application from the outset. During
repairs, it will then not be necessary to rework
the shaft and the original seal size can always
be used as the replacement.
Product features
LDSLV are made of stainless steels, chrome
plated with a hardness of ≈ 50 HRC and a
surface roughness or 0,25 to 0,5 µm R a . The
wall thickness of the standard sleeves is 2,54
mm (0.100 in). The sliding surface for the seal
is fine machined and chromium plated to
enhance the wear and corrosion resistance.
The width of the counterface for the seal on
the LDSLV3 is 6,4 mm (0.250in) narrower than
the total width B of the sleeve. The flange
height is 12,7 mm (0.500 in) for all sizes.
Details of the possible diameters and widths of
the sleeves will be found in Table 23, page
312, together with the sleeve and shaft
tolerances.
LDSLV4 are intended for applications where
a flange (to ease mounting) is in the way, or
where a wider sliding surface for the seal is
required. The dimensions, tolerance
recommendations etc. are otherwise the same
as those quoted for the LDSLV3.
gab.ru 310Берг АБ bergab@ya.ru Тел. (495)-228-06-21, факс (495) 22