Types:
There are two different types of duo cone Seals:the most common form is Type DO,which is characterized by the use of an O-Ring as the secondary sealing element.
Type DF,on the other hand, has an elastomer with a diamond-shaped cross section as a secondary sealing element instead of the O-Ring.
Technical data for metal seal rings:
| Material | 9Cr6Mo | 15Cr3Mo | 15CrMo |
| Process | Cast | Cast | Cast |
| Cost |
High
|
Medium | Low |
| Wear Life | High | High | Medium |
| Corrosion Resistance | High | Medium/High | Low |
| Scoring Resistance |
High
|
Medium | Medium |
Technical Data for O-Ring:
Material: NBR
Hardness: 60-65 Shore A
Temperature range: -20°C to +100°C
Advantages:
- Simple,reliable design
- High sealing effect against dirt,dust,water and abrasive media from the outside and against oil and grease from the inside
- Cost-effective
- Long service life
- Self-centering to compensate for shaft eccentricity or misalignment
- Maintenance-free
- Easy to assemble
- Simple,reliable design
- High sealing effect against dirt,dust,water and abrasive media from the outside and against oil and grease from the inside
- Cost-effective
- Long service life
- Self-centering to compensate for shaft eccentricity or misalignment
- Maintenance-free
- Easy to assemble