Honeycomb Seals

Sealing Without Gas Swirl

Honeycomb seals are machined with individual chambers that create the pressure drop needed to slow leakage. Those chambers also disrupt circumferential flow around the shaft, preventing destabilizing forces caused by the gas swirl that is common with labyrinth seals.

Bearings Plus honeycomb seals are engineered using a bulk-flow analysis tool to model the steady state and dynamic performance, optimized for the specific application. Key metrics that are optimized include the required leakage and dynamic coefficients, which are evaluated in a complete rotordynamic analysis of the rotor-bearing system.

Honeycomb damper seal
Closeup of honeycomb damper seal pattern


  • Very low cross coupling
  • Higher direct damping that labyrinth seals
  • More forgiving than labyrinth seals in the event of a rotor-stator rub
  • Variety of materials available to serve a wide range of applications
  • Capable of sustaining higher temperatures than conventional labyrinth seals

Related Products & Services

Hole pattern damper seal

Hole Pattern Damper Seals

Hole pattern seals work on a principle similar to the honeycomb seal. Typically, they allow slightly more leakage but can handle higher pressures.
Brush seal contact analysis heat map

Rotordynamic Analysis

Rotordynamic analysis evaluates bearing and seal characteristics simultaneously to better understand the independent effect of each component.
Integral squeeze film damper - ISFD technology

Squeeze Film Dampers

Used to increase dynamic stability or to shift critical speeds, squeeze film dampers introduce support flexibility and damping in the bearing/support structure.