Rotary Seals - Dilanda.it

Radial Oil Seal
n Busak+Shamban type TRC and STEFA type BB (DIN 3761 type B)
b
Medium
d2 H8
d1 h11
Figure 18
Installation drawing
General description
B+S type TRC and STEFA type BB are metal cased radial lip
seals. This type is not recommended for use in heavy
polluted environments. As the static sealing between
housing and metallic shell is limited, low viscosity media
can “creep“. Better performance can be achieved with
Epoxy-based resin O.D. coating. This special treatment is on
request.
Application examples
- Transmission systems (e.g. gearboxes)
- Pumps
- Electrical motors
- Machinery industry (e.g. tool machines)
- Heavy engineering applications
Advantages
- Good radial stiffness, especially for large diameters
- Good fitting stability avoiding pop-out of the seal
- Modern lip design provides low radial forces
- Cost effective for expensive elastomer materials
- Suitable for use in combination with axial seal (V—Ring
and GAMMA-seal)
Technical data
Pressure:
Temperature:
Speed:
Media:
up to 0.05 MPa
-40°C to +200°C
(depending on material)
up to 30 m/s
(depending on material)
mineral and synthetic lubricants
(CLP, HLP, APGL etc.)
B+S/STEFA have carried out several thousand compatibility
tests. 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.
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Latest information available at www.busakshamban.com
Edition April 2006