A longer lasting helicopter pitch link control bearing system.

INVINSYS® —  NHBB’s innovative pitch link bearing system — establishes a new performance benchmark for rotary wing applications. The significant performance advantage is helping to reduce maintenance and repair costs of helicopter pitch control systems.


Tests reveal a remarkable performance advantage.

NHBB conducted over 30,000 hours of research and dynamic testing to confirm these breakthrough performance results.

  • Extremely low wear: 0.003 in. or less over 1,500 hours
  • Lasts up to 2.5 times longer than previous designs
  • Highly resistant to moisture absorption and chemical attack
  • Resistant to high alkaline compounds in cleaning solutions

INVINSYS® is ideal for all main and tail rotor pitch control bearing applications – in new designs or as a retrofit.

Want to gain a performance edge? Ask our product engineering team for more information. 603.524.0004