AeroShell Grease 5 High-Temperature High-Speed Aircraft Grease, 14.1oz Tube for Wheel Bearings and Generator Applications
Standard airframe grease is not the correct product for wheel bearings and generator components that operate at high rotational speeds and elevated temperatures. Substituting a typical mil-prf-23827c specification airframe grease in these severe environments results in film breakdown, bearing overheating, and premature component wear that shows up at inspection or in service. Supplied by JHEARs Aerospace, AeroShell Grease 5 is the high-temperature, high-speed bearing grease formulated specifically for the wheel bearing and generator lubrication tasks that your aircraft maintenance manual calls out separately from general airframe lubrication precisely because the application demands a grease with a different performance envelope.
Meeting MIL-PRF-81322, AeroShell Grease 5 is the specification product engineered to deliver an exceptional useful operating temperature range across a wide range of operating conditions. This outstanding wide temperature range ensures structural load carrying capability and fluid film thickness remain uncompromised even when rotating parts transition through a wide range of operating thermal spikes. In a 14.1oz tube format, it is sized for the quantities consumed in scheduled wheel bearing repack and generator service work without the bulk of a large-format container. For A and P mechanics performing scheduled component lubrication, and flight schools maintaining their training fleet's rotating components in-house, having a product that maintains stability across a wide range of operating loads is the baseline of proper maintenance practice.
Spec: AeroShell Grease 5 high-temperature, high-speed aircraft bearing grease. 14.1oz tube. Meets MIL-PRF-81322 compliance parameters. Formulated with a specialized temperature range superior to traditional airframe grease for aircraft wheel bearings, generators, and high-speed rotating component lubrication applications.
Who this is for: Aircraft mechanics and A and P technicians performing scheduled wheel bearing repacks and generator lubrication on GA and commercial aircraft, flight schools maintaining training fleet wheel bearing and rotating component lubrication programmes in-house, and maintenance facilities where AeroShell Grease 5 is specified by name in aircraft maintenance documentation for high-temperature bearing applications requiring reliability across a wide temperature range.
FAQ
What is the difference between AeroShell Grease 5 and AeroShell Grease 6, and when should each be used?
AeroShell Grease 6 is a general purpose airframe grease suitable for most antifriction bearings, gearboxes, and plain bearings across the airframe. AeroShell Grease 5 is a high-temperature, high-speed grease formulated for wheel bearings, generators, and components that operate at elevated temperatures and high rotational speeds, offering a distinct useful operating temperature range compared to low-temperature alternatives like mil-prf-23827c products. Always use the grease specified in your aircraft maintenance manual for each specific application rather than substituting one for the other.
How often should aircraft wheel bearings be repacked with AeroShell Grease 5?
Wheel bearing repack intervals are specified in your aircraft maintenance manual and vary by aircraft type and operator. Common intervals include 100-hour inspections and annual inspections, but the maintenance manual requirement for your specific aircraft type is the authoritative source. Do not extend intervals beyond the maintenance manual requirement.
Is the 14.1oz tube format compatible with standard bearing packing tools?
Yes. The tube format allows direct application of grease to wheel bearing cages and races using standard bearing packing tools or by hand packing, which is the normal method for aircraft wheel bearing repack procedures. The tube provides a convenient and hygienic way to dispense grease without contaminating the remaining product.
Why should I purchase my aviation bearing greases from JHEARs Aerospace?
At JHEARs Aerospace, we supply approved aviation lubricants and greases sourced and stored to maintain product integrity and specification compliance. Our lubrication inventory ensures mechanics and maintenance operations receive the correct, approved product for each specific aircraft lubrication application.
