Raise the level of performance and meet your expectations
Radial lip seals have become one of the most critical components in modern industrial and commercial equipment. That’s why combined PTFE and elastomer seal lip design is in the spotlight as a way to increase life expectancy. This material combination has the unique ability to withstand even the most grueling extremes in climate, environment, and dry running conditions.
- Improve fuel economy
- Better emissions ratios
- Zero tolerance for ground leakage
- Vibration absorption
- Tolerance of high pressures
- Lower resistance and torque ratios
- Resist frictional heat build up
- Reduce warranty issues
Vanseal has several developed rotary shaft seal designs that feature a special rubber OD (outside diameter) and formed PTFE lip. These engineered designs make it possible for the seal to resist environmental conditions that cause seal failure and maintain a constant retention force, holding the seal in place as intended and improving the performance of the assembly.
PTFE and rubber OD combine for better performance and offer:
- System protection in dry running conditions
- Higher shaft speeds
- Reduced breakaway torque
- Reduction in oil sumps or sump sprays
- Reduction in emissions
- Reduction in energy consumption
- Resistance of assembly exposure to harsh chemicals
PTFE Reduces Heat and Friction
The use of PTFE compounds as an integrated element in rotary shaft seal design is not uncommon. This process is used in many types of component manufacturing because of the material’s ability to withstand extremely high temperatures. Also, the near universal chemical resistance and ultra-low coefficient of friction make it especially attractive to the motor vehicle industry. The material’s lower friction robs less power, reduces fuel consumption, and offers less rolling resistance, thereby saving energy.
Lighter Weight Materials Bring Even More Challenges
Vibration, harmonics, and temperatures cause dimensional changes to lightweight housing materials and threaten the integrity of sealing mechanics. These materials, when used in heavy-duty equipment systems, cause components, like seals, to be more affected by dynamic conditions. Our PTFE and elastomer seals absorb engine vibrations and compensate for dimensional changes from thermal cycles that typically make other seals leak or “walk” out of a bore made from light-weight housings like aluminum or magnesium.
Sometimes material composition and complex bonding aren’t enough. The fluid film within a large shaft seal environment can diminish quickly, leaving assemblies susceptible to failure at high rates of speed. Hydrodynamic design elements assist rotary shaft seals in improving fluid pump rate. Specialized patterns molded into the surface aids seals in increasing under lip pressure. The result – improved surface speed and reduced torque characteristics. Meanwhile, combining the dynamic properties of rubber with the super coefficient of friction found in PTFE further improves surface speed and torque, and maintains a cooler running temperature.
Simply put, our PTFE rubber-energized seals are designed to be the best
PTFE seals with engineered rubber OD, are ideal for use in automotive, commercial, AG and heavy duty system applications.
- Lower torque ratios that reduce emissions
- Outlasts ordinary rubber seals
- Costs less than complex mechanical seals
- Seals are engineered, tested, and proven in-house
- Improves the performance of system assemblies
Vanseal is a premier designer and manufacturer of radial lip, hydraulic rubber and mechanical seal components for standard rotating equipment and large shaft seal applications. We have solved some of the most difficult radial seal application design problems and hold patents on several innovative designs. Trust Vanseal to manufacture parts that are long-lasting and reliable.