SKF ConCentra - Page 14

Fig. 8
A
5
Fig. 9
Table 4
Rubber seating rings
Y-bearing
Rubber seating rings
Dimensions Mass Designation Suitable
Y-bearing
D D
1
d
1
d
2
B C Size
–
mm
40 47,3 35,5 39,8 12 18 12 RIS 203 03
47 52,3 41,2 46,8 14 19 11,5 RIS 204 04
52 62,3 46,4 51,8 15 20,5 26,5 RIS 205 05
62 72,3 54,6 61,8 18 21,5 31 RIS 206 A 06
72 80,3 63,7 71,8 19 23 32 RIS 207 A 07
80 85,3 70,7 79,8 21 24 26 RIS 208 A 08
C
B
D
1
d
2
d
1
Fig. 10
The seating rings in the RIS 2 series are
made from acrylonitrile-butadiene rubber
(NBR) and have a convex sphered outside
diameter.
The rings can operate at temperatures
from –30 to +100 °C. The designation and
the dimensions of rubber seating rings are
listed in table 4.
End covers
To protect the bearing arrangement at the
end of a shaft, and to avoid the possibility of
an accident caused by an exposed shaft end,
ECY series end covers († fig. 8) are avail-
able for metric plummer block († fig. 9)
and flanged housings († fig. 10). The end
covers, made from polypropylene (PP) , have
good resistance to most chemicals and can
withstand operating temperatures up to
100 °C. They can be snapped into the
recesses provided in the housing bore.
In the product tables, the end covers are
listed together with those units that can
accommodate them. The designation of the
end cover is listed together with the distance
A
5
that the end cover protrudes from the
housing († fig. 9).
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