AeroShell Grease 14 Helicopter Multi-Purpose Grease, 14.1oz Cartridge for Rotor Bearings and High-Vibration Assemblies
Rotor head bearings operate under severe oscillating motion, extreme centrifugal load, and continuous high-frequency vibration that creates the conditions for fretting corrosion and moisture pitting that no general-purpose airframe grease is equipped to handle. Supplied by JHEARs Aerospace, AeroShell Grease 14 is the industry-standard helicopter multi-purpose grease, formulated specifically with a calcium soap thickener and premium mineral base oils to deliver the anti-fret and anti-corrosion protection that main and tail rotor bearings, pitch change links, splines, and high-vibration oscillatory airframe bearings require in service.
The operating temperature range of minus 54 degrees Celsius to plus 93 degrees Celsius covers the full envelope of rotary operations from cold weather ground starts to high-load flight regimes, and the outstanding water washout resistance keeps moisture out of critical lubrication points during high-humidity operations and extended ground storage. Available in a 14.1oz grease gun-ready cartridge, it fits directly into standard grease gun equipment without transfer or repackaging, keeping the application process clean and controlled at the bearing point. For helicopter AMEs, maintenance crews, and fleet operators on Robinson, Bell, Sikorsky, and Airbus Helicopters rotary types, this is the specification grease that maintenance documentation calls for.
Spec: AeroShell Grease 14 helicopter multi-purpose grease. 14.1oz (400g) grease gun cartridge. Calcium soap thickener, mineral base oil. Operating temperature range minus 54 degrees Celsius to plus 93 degrees Celsius. MIL-G-25537C, NATO Code G-366. Suitable for main and tail rotor bearings, splines, pitch change links, knuckle pins, and high-vibration oscillatory airframe bearings.
Who this is for: Helicopter maintenance engineers and AMEs performing scheduled rotor head and bearing lubrication, fleet maintenance crews on Robinson, Bell, Sikorsky, and Airbus Helicopters rotary types, operators maintaining rotary aircraft in high-humidity or cold-weather environments where moisture ingress and fretting corrosion are primary concerns, and maintenance facilities where AeroShell Grease 14 is specified in aircraft maintenance documentation.
FAQ
What makes AeroShell Grease 14 specifically suited to helicopter rotor bearings compared to general airframe grease?
AeroShell Grease 14 is formulated with a calcium soap thickener system and additive package specifically engineered to resist fretting corrosion under oscillating, high-vibration loads. General airframe greases are not designed for this load type and will not provide equivalent protection in rotor head bearing applications. Always use the grease specified in your aircraft maintenance manual.
Is the 14.1oz cartridge compatible with standard grease guns?
Yes. The 14.1oz cartridge format is designed to fit standard grease gun equipment used in helicopter maintenance operations, allowing direct application to bearing points without transfer or repackaging. Verify cartridge diameter compatibility with your specific grease gun before use.
Can AeroShell Grease 14 be mixed with other greases in bearing cavities that already contain residual lubricant?
Mixing different grease types and thickener systems is generally not recommended and can result in reduced performance or compatibility issues. Where possible, purge residual grease from bearing cavities before repacking with AeroShell Grease 14, and follow your aircraft maintenance manual guidance on grease change procedures.
Why should I purchase my helicopter lubrication products from JHEARs Aerospace?
At JHEARs Aerospace, we supply approved aviation lubricants sourced and stored to maintain full product traceability and specification compliance. Our lubrication inventory is selected to give helicopter maintenance engineers and fleet operators confidence that the product received is the correct, approved material for critical rotary assembly applications.
