Rotary Seals - Dilanda.it

Radial Oil Seal
n STEFA type 12CC - medium - high pressure oil seal
b
Medium
d2 H8
d1 h11
Figure 26
Installation drawing
General description
STEFA type 12 CC (TRQ_D) is a seal with completely rubber
covered Outer Diameter. This type of seal is designed for
pressures up to 1 MPa. In order to avoid a “pop-out“ of the
seal, we suggest to fit an axial retainer (e.g. circlip,
shoulder, etc.). The additional dust lip protects the main
sealing lip against dust and other fine solid contaminants
and therefore this type is recommended for use in polluted
environments. To achieve a long lifetime a suitable
lubricant between the two sealing lips should be applied.
Advantages
- Good static sealing
Application examples
- Transmission systems (e.g. gearboxes)
- Pumps
- Hydraulic motors
- Machinery industry
Technical data
Pressure: up to 1 MPa
Temperature:
-40°C to +200°C
(depending on material)
- Compensation of different thermal expansion
- Reduced risk of fretting corrosion
Speed:
up to 5 m/s
(depending on pressure and material)
- Up to 1 MPa pressure at low peripheral speed
- Effective protection against air side contaminants
- No need of back-up ring.
Media:
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.
Latest information available at www.busakshamban.com
Edition April 2006
101