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.
- 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