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LEAP-1B power transmission system

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LEAP-1B power transmission system, lighter and more powerful than the previous generation

LEAP-1B Accessory Drive Train

LEAP-1B power transmission system

Safran Transmission Systems

Power transmitted 310 to 450 kW

Shaft rotation speed 22,000 rpm

Number of gear shafts in the AGB 9, including 2 spiral bevel gears

Spiral bevel gears in the TGB 2

At the heart of mechanical energy management on a jetliner, our LEAP-1B power transmission system distributes energy to many of the key subsystems and equipment that help keep the aircraft and its engines performing as they should.

LEAP-1B power transmission system

Product Mechanical power transmissions

Safran Transmission Systems

Power transmitted 310 to 450 kW

Shaft rotation speed 22,000 rpm

Number of gear shafts in the AGB 9, including 2 spiral bevel gears

Spiral bevel gears in the TGB 2

The accessory drivetrain (ADT) for the LEAP-1B, which powers the Boeing 737 MAX. It supplies 20% more power than a CFM56 ADT, but is 30% lighter. Due to the larger diameter fan blades, this ADT has been optimally positioned to make the engine easier to integrate on the 737 MAX family.

  • © Benoit Vallet / Safran
  • © Adrien Daste / Safran