Rotary Seals - Dilanda.it
Rotary Seals - Dilanda.it
Rotary Seals - Dilanda.it
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Radial Oil Seal<br />
n STEFA 1B/APJ and 2B/APJ types - housing as per DIN 3760-3761<br />
The design of the radial seal corresponds to STEFA Type<br />
1B/CC and 2B/CC.<br />
The sleeve remains the same for all kind of radial seal<br />
design.<br />
b<br />
b<br />
Medium<br />
2B/APJ<br />
1B/APJ<br />
d2 H8<br />
d1 h11<br />
Figure 35<br />
Installation drawing<br />
Product description<br />
STEFA 1B/APJ and 2B/APJ types are radial lip seals w<strong>it</strong>h<br />
partially rubber covered outer diameter.<br />
1B/APJ type recommended for use in heavy polluted<br />
environments and where a good axial retention force is<br />
required w<strong>it</strong>h a good heat transfer as well. The type 2B/APJ<br />
is recommended for aluminium or soft metal housings that<br />
may be scratched at assembly by metal frame of the seal.<br />
Applications examples<br />
- Transmission systems (e.g. gearboxes)<br />
- Pumps<br />
- Machinery industry (e.g. tool machines weaving<br />
machinery)<br />
- Axle Hubs and axle for heavy-duty applications<br />
Advantages<br />
- Good static sealing<br />
- Compensation of different thermal expansion<br />
- Higher bore surface roughness is allowed<br />
- Do not require shaft treatment (hardening and grinding)<br />
- Modern lip design provides low power loss<br />
- Good heat transfer to outside<br />
Technical data<br />
Pressure:<br />
Temperature:<br />
Speed:<br />
Media:<br />
up to 0.05 MPa<br />
-40°C to +200°C<br />
(depending on material)<br />
up to 10 m/s<br />
(depending on material)<br />
mineral and synthetic oils<br />
(CLP, HLP, APGL etc.)<br />
- Quick servicing (No shaft rework required)<br />
B+S/STEFA have carried out several thousand compatibil<strong>it</strong>y<br />
tests. Please ask for details.<br />
Important Note:<br />
The above data are maximum values and cannot<br />
be used at the same time, e. g. the maximum<br />
operating speed depends on material type,<br />
pressure and temperature.<br />
Latest information available at www.busakshamban.com<br />
Ed<strong>it</strong>ion April 2006<br />
117