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Helicopter Main Gearbox

Helicopter Main Gearbox

Helicopter Main Gearbox

Product catalog summary
Introduction
The document discusses the critical role of the helicopter main gearbox (MGB) and the importance of proper sealing solutions to ensure its functionality. Rotary lip seals are essential for maintaining oil lubrication within the gearbox and preventing leaks.

Challenges
Helicopter accidents often result from lubrication loss, leading to increased friction and mechanical failure. The MGB is crucial for reducing engine speed and providing torque to the main rotors and accessory systems.

Solution
Omniseal® Rotary Lip Seals are designed to act as a rotary seal, retaining oil and preventing dust and particles from entering the gearbox. These seals adjust for hardware misalignment and have minimal wear.

Benefits
The polymer lip seals are trusted for their low friction, low wear rate at high speeds, high thermal resistance, and ability to function without lubrication. Their lightness and compactness are additional advantages.

Specifications
  • Product: Omniseal® Polymer Rotary Lip Seal, Series 31
  • Application: Helicopter Main Gearbox (MGB)
  • Material: Fluoroloy® A27
  • Media: Jet Oil
  • Temperature Range: -55°C to 210°C (-67°F to 410°F)
  • Speed: Up to 25 m/s
  • Pressure Difference: Up to 14 PSI (1 BAR)
  • Counter Face: Chromium hardened shaft

Design Expertise
Omniseal Solutions™ is a leader in engineering precision sealing and material solutions for demanding environments, with over 65 years of experience.

Contact Information
Author: Arnaud Verger, Market Manager - Aviation, Paris, France
Email: [email protected]
Website: www.omniseal-solutions.com
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Catalog excerpts

Helicopter Main Gearbox-1

BEYOND the boundaries of possible HELICOPTER MAIN GEARBOX

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Helicopter Main Gearbox-2

OMNISEAL® ROTARY LIP SEALS Helicopter Main Gearbox Arnaud Verger AVIATION HIGH SPEED Environment How would a helicopter main gearbox (MGB) successfully function without the proper sealing solution? Rotary lip seals are widely used to seal the oil lubricant within the gearbox and protect it from leaking out at where the shaft enters and exits the gearbox. Challenge A number of significant helicopter accidents are caused by a loss of lubrication as friction is increased between components, leading to a mechanical failure of gearbox components. The main gearbox, also known as a transmission, is...

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Helicopter Main Gearbox-3

Our customer trusts our polymer lip seals due to their low coefficient of friction, low wear rate at high rotary speed, high thermal resistance, and ability to run dry if loss of lubrication should occur Along with these mechanical properties, our customer finds that the lightness and compactness of our lip seals and their ability to prevent dust and pollutants to enter the gearbox and ruin the gears are also major advantages for using our rotary lip seals. Benefits • Acts as a rotary seal between gearbox and exterior to retain oil in contact with a high speed rotating shaft • Wiper design prevents...

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Helicopter Main Gearbox-4

Omniseal Solutions™ is a global engineering leader with over 65 years of historical legacy, relentlessly dedicated to the design and manufacture of precision sealing and material solutions that protect critical applications in the most demanding environments and passionately driven to push Beyond the Boundaries of Possible. Market Manager - Aviation Paris, France +33 6 03 10 50 84 [email protected] Omniseal Solutions™

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.