Industrial shaft seals

gab.ru Берг АБ bergab@ya.ru Тел. (495)-228-06-21,
Industrial
факс
shaft seals
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Garter springs
SKF radial shaft seals have garter springs
made of drawn carbon steel or stainless steel
(X 3 CrNiN 17 8, Material No. 1.4319;
SAE 30302) spring wire.
The carbon steel springs are standard. In
cases where a seal has a non-standard garter
spring, this is noted in the product tables.
Bore-Tite coating
Bore-Tite is a water-based polyacrylate
material and is used as a coating on the seal
steel outside diameter of part of the CR radial
shaft seal range. Bore-Tite is green in colour,
does not harden and serves to fill slight
irregularities in the housing bore. For further
details see page 26.
Dimensions
SKF radial shaft seals are produced in a very
wide range of dimensional variants for shaft
sizes in the range 5 to 4.600 mm (1/4 to
180 inch). The range also includes standard
sizes according to ISO 6194/1:1982 and
DIN 3760:1996 (shaft diameter range 6 to
500 mm incl.)
In the diameter range 1/2 to 6 inch the
inch size radial shaft seals conform to
recommendations laid down in SAE J946.
The dimensions of the larger seals are not
covered by any ISO, DIN or SAE standards.
However, the dimensions of the large seals
shown are generally accepted.
Tolerances
SKF radial shaft seals are manufactured with
the outside diameter tolerances given in Table
3 for metric seals and Table 4, page 58 for
inch-size seals. These correspond, where
standardised, to the values given in
ISO 6194/1:1982 and DIN 3760:1996 and
SAE J946.
The width tolerances correspond to
ISO 6194/1:1982 and SAE J946.
Metric sizes:
Seal width
b ≤ 10 mm
b > 10 mm
Inch sizes:
Seal width
b ≤ 0,400 inch
b > 0,400 inch
Tolerance
±0,3 mm
±0,4 mm
Tolerance
±0,015 inch
±0,020 inch
Symbols:
d 2 nominal outside diameter
∆d 2 m mean outside diameter deviation:
arithmetical difference between the
mean outside diameter and the
nominal
Vd 2 s outside diameter variation
(roundness tolerance): arithmetical
difference between the largest and
smallest single outside diameters
measured at three or more points
equally spaced around the circumference
gab.ru Берг АБ bergab@ya.ru Тел. (495)-228-06-21, факс (495) 57 22