M 35 x 47 x 10 GMN non-contact seal, inner 35 mm., outer 47 mm., width 10 mm. GMN west Germany

GMN Non-Contact Seals
The machine tool industry and its end users are continuously demanding the utmost in quality in every aspect of their machine. Highly specialized components are resulting in shorter process time, higher rotating speed, flexible material characteristics and a huge range of operating conditions. Simultaneously, new energy- saving solutions and maintenance-free characteristics are increasing economic efficiency of modern machine systems.

In correlation with the application’s design, non-contact seals also:
- Protect/shield inner workings of the application - Throttling/switching
- Back transport of application medium(s)
- Optional draining within the seal design
The seal itself as well as the specific design encompassing the seal satisfies only parts of the sealing requirement.
The maximum efficiency of a GMN labyrinth seal is achieved with an optimised interaction of the seal-component and the surrounding construction/design.
Sealing function at machine standstill
The functions of protecting, shielding, throttling and switching are effective even when the shaft stands still. The seal functions of back transport and draining require the shaft to be rotating.

Applications
- High-speed
(no-wear operation)
- Sealing against dust
(Pre-greased GMN Labyrinth Seal made of plastic)
- High cleanliness
(Freedom from any wear)
- Positioning without resistance
(No opposing forces during operation)
- Protection for lip seals
(Guarding against wear from chips and abrasive particles)