PBS Velká Bíteš, a.s.

PBSAircraft Gearboxes

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We are experienced in the production of the main L-159 trainer aircraft gearbox for a Honeywell F-124 engine, to which it is connected with an elastic PTO shaft. The gearbox drives the electric generator, two hydraulic pumps and air-starter turbines. The gearbox has an integrated oil system with an oil tank, pump and filter.

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We offer the production of complete aircraft gearboxes and reducers, or the grinding of separate gears.

  • Service life: 8 years or 3,000 starts with starts lasting 30 seconds
  • Expected life cycle: 25 years or 9,000 starts with starts lasting 30 seconds

We also have long-term experience in the production of reducers for ourturboprop engine PBS TP100 and ourturboshaft engine PBS TS100.

  • Technical parameters: Values
  • Max. shaft speed: 18,400 revolutions/min.
  • Idle shaft speed: 10,000 revolutions/min.
  • Maximum input power: 124.0 kW
  • Maximum speed of electric generator and hydraulic pumps: 9,200 revolutions/min.
  • Maximum electric generator power: 58.0 kW
  • Maximum hydraulic pump power: 33.0 kW
  • Flight altitude: 15,250 m
  • Working conditions: from -40° to +75°C
  • Weight: 45.0 kg

Variability according to individual applications

Our gearboxes are manufactured in various modifications according to customer requirements.

High reliability

The total expected service life is 25 years or 9,000 startups with a 30-second startup time.