Rotary Seals - Dilanda.it

Radial Oil Seal
n Busak+Shamban types TRD_A / TRD_B and STEFA type 1 B/CC / 2B/CC
b
b
Medium
TRD_A
1B/CC
TRD_B
2B/CC
d2 H8
d1 h11
Figure 23
Installation drawing
General description
B+S types TRD_A / TRD_B and STEFA type 1B/CC and 2B/CC
are seals with partially rubber covered Outer Diameter.
These seals are designed to assure a high assembly stiffness
and a good static sealing together with a good heat
transfer. The additional dust lip protects the main sealing
lip against dust and other fine solid contaminants,
therefore these types are recommended for use in
polluted environments. To achieve a long lifetime a
suitable lubricant between the two sealing lips should be
applied.
Please note that this O.D. design (half & half design) can be
delivered on request also for different sealing lip types
(e.g. type TRA/CB, TRP/6CC, etc.)
Advantages
- Good static sealing and stiffness (No pop-out effect)
- Good thermal expansion compensation
- Good heat transfer
- Effective protection against air side contaminants
Application examples
- Automotive “Power-train“ and “Drive-train“
- Automotive servo-pumps
- High speed transmission
- Machine tools
Technical data
Pressure:
up to 0.05 MPa for
standard lip profiles
Temperature: -40 °C to +200 °C
(depending on material)
Speed:
Media:
up to 30 m/s
(depending on material)
mineral and synthetic oils
(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