Rotary Seals - Dilanda.it
Rotary Seals - Dilanda.it
Rotary Seals - Dilanda.it
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GAMMA Seal<br />
Table XLVI<br />
Lead-in chamfers<br />
Medium<br />
(Dirt)<br />
Inside diameter<br />
mm<br />
Chamfer<br />
mm<br />
0 - 35 2<br />
36 - 50 2<br />
51 - 135 2<br />
136 - 200 2<br />
Tolerance<br />
mm<br />
-0.15<br />
-0.25<br />
-0.18<br />
-0.28<br />
-0.20<br />
-0.30<br />
-0.25<br />
-0.35<br />
Figure 67<br />
Installation drawing<br />
10°<br />
2 R a =4<br />
F<strong>it</strong>ting<br />
Prior to being f<strong>it</strong>ted, the sealing member shall be greased,<br />
but not between the sealing member and the case. It is<br />
important that the seal is f<strong>it</strong>ted w<strong>it</strong>h adequate precision.<br />
The seal shall be pressed onto the shaft w<strong>it</strong>h a uniform and<br />
even pressure.<br />
The case must not be tapped directly w<strong>it</strong>h the hammer. The<br />
seal should therefore be pressed to the right pos<strong>it</strong>ion by<br />
means of a su<strong>it</strong>able assembly tool (see Figures 69, 70 and<br />
71). Since facial fixation beyond the press f<strong>it</strong> between the<br />
seal and the shaft is not provided, the assembly tool should<br />
be of a design as shown in Figures 69 and 71 in order to<br />
obtain the installation width b as per the dimension tables.<br />
ød h9<br />
otherwise<br />
g6/n6<br />
Figure 68<br />
Tolerance of the shaft, surface roughness<br />
and chamfer of the shaft<br />
The surface roughness of the shaft should not exceed 4 μm<br />
Ra. In add<strong>it</strong>ion, the shaft should be provided w<strong>it</strong>h a<br />
chamfer as per Figure 68. Sharp edges or burrs are not<br />
perm<strong>it</strong>ted. In the case of width b, a variation of +0.5 mm is<br />
permissible.<br />
170<br />
Latest information available at www.busakshamban.com<br />
Ed<strong>it</strong>ion April 2006