Rotary Wheel Of Auto Parts
- **Conclusion
MH: O.D. wall is a rubber material
HM: O.D. wall is a metal case
MH(S)H: O.D. wall is metal with a reinforced inner metal case- * Dimension The seal measures 35mm in diameter, 47mm in width, and has a lip length of 7mm. These dimensions are carefully chosen to fit a wide range of machinery and applications.
Shaft and Bore Tolerances
How are they used?
Despite being incredibly flexible, silicone has some significant drawbacks. The toughness, resistance to wear, and abrasion of many silicone compounds are poor. If you seriously need an oil seal material with better strength and resistance to high temperature, the perfect option is Viton.
The sealing element makes up the interior of the oil seal, and the materials commonly used are:
These types are made with a metal outer case and a PTFE lip. They are suitable for a wide range of temperatures from -90 °C to +260 °C.These lip seals can also be used for higher pressures of up to 10 bar (special types up to 25 bar) and rotational speeds of up to 40-45 m/s. Certain grades of PTFE are suitable for use in pharmaceutical and food applications. One important point is that PTFE lip seals do require a shaft with a harder, smoother finish.


Choosing the correct type for your application




PTFE