Rotary Seals - Dilanda.it

Radial Oil Seal
n STEFA standard APJ type
b
Medium
d2 H8
d1 h11
Figure 34
Installation drawing
Product description
STEFA standard APJ is a seal with completely rubber
covered outer diameter. Two different O.D designs are
available: Flat rubber sheath as well as wavy, both correctly
fitting into H8 bores.
APJ seal is recommended for use in heavy polluted
environments.
Both the seal and the sleeve may also be manufactured
with different metal insert material as well as different
rubber types.
Advantages
- Good static sealing
- Compensation of different thermal expansion
- No risk of fretting corrosion
Application examples
- Transmission systems (e.g. gearboxes)
- Pumps
- Washing machines
- Machinery for Industry (e.g. tool machines)
- Axles for heavy-duty applications
Technical data
Pressure:
up to 0.05 MPa
Temperature: -40 °C to +200 °C
(depending on material)
Speed:
up to 10 m/s
(depending on material)
- Higher bore surface roughness is allowed
- Do not require shaft hardening
Media:
mineral and synthetic oils
(CLP, HLP, APGL etc.)
- Do not require shaft grinding
- Modern lip design provides low power loss
B+S/STEFA have carried out several thousand compatibility
test. Please ask for details.
Important Note:
The above data are maximum values and cannot
be used at the same time, e. g. the maximum
operating speed depends on material type,
pressure and temperature.
Latest information available at www.busakshamban.com
Edition April 2006
115