GOETZE Mechanical Face Seals with High-Performance Elastomer O-Rings
GOETZE® Mechanical Face Seals, also known as metal face seals, are specifically engineered for rotating applications in extremely arduous environments where they withstand severe wear and prevent the ingress of harsh and abrasive external media.
The high cost of equipment downtime requires the best available seal. GOETZE® Mechanical Face Seals provide superior performance in extreme applications where positive lubricant retention and the ability to keep out damaging and/or abrasive materials are essential.
This level of durability has become a choice of OEM earth-moving equipment and machinery.
GOETZE Authorized Distributor
Engineered Seal Products is the proud exclusive North America "Authorized Distributor"
GOETZE Mechanical Face Seal Brochure
Mechanical Face Seal Applications
GOETZE® mechanical face seals are found wherever the going gets really tough: wheel hubs and axles, support and guide roller bearings of tracked vehicles, transmissions, and many more axial connections in heavy technical equipment such as construction machinery, conveyors, mining machinery, concrete and cement mixers, tunnel boring, and agricultural equipment. The portfolio of designs and advanced materials cover applications which include some of the largest equipment around the world: with a diameter of up to 1,425 mm.
4 Types of Mechanical Face Seals
O-Ring Type Mechanical Face Seal Standard Product
The most common mechanical face seals design is the o-ring, with two symmetrically tapered seal rings and two o-rings. O-ring designs have two versions - the 76.90H with a ground profile; and the 76.97H with an as-cast profile. In general, both versions are completely interchangeable.
Square Bore Type Mechanical Face Seal Better Mud Packing Behavior
The mechanical face seal type 76.95 consists of two metallic angular seal rings with identical contours. The seal rings are assembled with trapezoid elastomer parts positioned against the housing bore. Type 76.95 provides stiffer spring characteristics than standard o-ring designs.
The HSL seal is an evolution and special form of the square bore seal. It uses a unique and patented design for the elastomeric part of the seal with an integral dirt exclusion lip and heavy-duty spin protection. These features improve protection significantly, leading to reduced leakage, extended service life and resisting compression from mud.
Asymmetric Type Mechanical Face Seal Less Installation Space
There are two different versions: the inverted seal ring design provides a considerable savings potential with regards to the cross section and manufacturing technology. The countering style shows advantages when there is limited installation space.
Adaptor Ring Mechanical Face Seal Facilitates Easy Repairs
In some sealing applications, the use of standard designs 76.90H / 76.97H is more complicated due to functional, construction or production reasons. When installing standard designs into cylindrical bores, 76.91 adapter rings can be used instead of re-machining the housing, with maintenance time and cost savings. These adapter rings are also an exceptional choice when strong abrasive environments result in significant retaining lip wear on housing contours.
Validated by certificates from leading institutes and existing customers – make GOETZE® the first choice for face seals. GOETZE® manufactures their face seals completely in-house, from the casting to the finish grinding. State-of-the-art test rigs and optimized quality processes ensure the high quality of GOETZE® products. The materials, elastomer compositions and designs are perfectly adapted to the applications. Starting with an outer diameter of 50 millimeters, the dimensions reach up to 1,425 millimeters, a world record. In fact, the world’s largest cast face seals in open-castors, large-scale bogies and other large-scale machines bear the GOETZE® name.
Mechnical Face Seal Metallic Material Innovations
Chilled Cast Iron (Duronit V)
- Very hard, resists abrasive wear & corrosion
- Even under extreme operating conditions, Duronit V demonstrates excellent resistance to micro-welding & material transfer
- A ledeburite microstructure with free graphite
- The free graphite improves the material’s thermal conductivity, helping to dissipate heat in order to prevent a thermal degradation of the oil film
- At a hardness of 47 to 57 HRC, Coronit resists fretting & scoring
- Facilitates peripheral speeds up to 10 m/s due to its excellent thermal & tribological properties
Mechanical Face Seal High-Performance Elastomeric Materials
NBR - standard
HNBR - higher temperatures
FKM - extends the maximum temperature while offering excellent oil compatibility
VMQ - covers temperature in both hot and cold extremes