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MIL-PRF-81322 & SAE AMS 3058 Wheel Bearing Greases

As air travel develops, the need for modern aircraft with more efficient equipment intensifies. To keep this equipment running, the greases, oils and other consumable chemicals involved in the maintenance process need to adapt to meet the extreme demands placed on them.

Wheel Bearing Greases

As air travel develops, the need for modern aircraft with more efficient equipment intensifies. To keep this equipment running, the greases, oils and other consumable chemicals involved in the maintenance process need to adapt to meet the extreme demands placed on them.

For many years, the MIL-PRF-81322 specification was the driving specification when it came to wheel bearing applications.

More recently, the SAE-AMS-3058 specification has been introduced, calling for lithium or lithium-complex based greases that exceed the requirements for load carrying capacity, corrosion protection and mechanical stability as well as coping with the more extreme demands placed on the wheel bearings by the latest runway de-icing fluids.

But the correct use of a grease is not limited to meeting military and civil aviation specifications. The grease also needs to gain approval from the OEM equipment manufacturer, and leading greases in the Silmid portfolio meet this additional requirement.


Aircraft wheels on runway

AeroShell Grease 58

Aeroshell grease 58 various sizes

An advanced general purpose and wheel bearing grease composed of a synthetic base fluid and a lithium complex soap thickener.

Approvals

  • SAE-AMS-3058;
  • Airbus AIMS 09-06-003;
  • Safran Landing Systems SAS approved for Airbus A318, A319 and A320 main landing gear wheel assembly;
  • Collins Aerospace (Goodrich Corporation) approved for Airbus A318, A319, A319NEO, A320 and A320NEO main and nose wheel assemblies.

Nyco Grease GN 3058

Nyco Grease GN 3058 various sizes

A lithium complex thickened synthetic grease demonstrating high load carrying capability and good resistance to water wash-out.

Available in a range of sizes.

Approvals

  • SAE-AMS-3058;
  • Airbus AIMS 09-06-003;
  • Airbus CML 03GCC1;
  • Safran Landing Systems SAS approved for Airbus A318, A319 and A320 main landing gear wheel assembly;

ROCOL® AEROSPEC® 400

ROCOL® AEROSPEC® 400 various sizes

An aerospace grease optimised for an extensive range of applications including low temperatures, high temperatures and high loads – ideal for aircraft wheel bearings.

Approvals

  • SAE-AMS-3058;
  • Airbus AIMS 09-06-003;
  • Airbus CML 03GCC1;
  • Boeing MMS 657;
  • Collins Aerospace (Goodrich Corporation) approved for Airbus A318, A319, A319NEO, A320 and A320NEO main and nose wheel assemblies


Nyco Grease GN 3058

A lithium complex thickened synthetic grease demonstrating high load carrying capability and good resistance to water wash-out.

  • SAE-AMS-3058;
  • Airbus AIMS 09-06-003;
  • Airbus CML 03GCC1;
  • Safran Landing Systems SAS approved for Airbus A318, A319 and A320 main landing gear wheel assembly;
  • Collins Aerospace (Goodrich Corporation) approved for Airbus A318, A319, A319NEO, A320 and A320NEO main and nose wheel assemblies.
  •  Recently approved to MIL-PRF-32014

ROCOL® AEROSPEC® 400

An aerospace grease optimised for an extensive range of applications including low temperatures, high temperatures and high loads – ideal for aircraft wheel bearings.

Approvals

  • SAE-AMS-3058;
  • Airbus AIMS 09-06-003;
  • Airbus CML 03GCC1;
  • Boeing MMS 657;
  • Collins Aerospace (Goodrich Corporation) approved for Airbus A318, A319, A319NEO, A320 and A320NEO main and nose wheel assemblies