Fabric shaft seal WGBThe shaft seal type WGB is used mainly in tunnel boring machines as primary seal to protect the main seal.
It is made of very resistant, fabric-reinforced elastomers that withstand hard operating conditions, especially in applications with water and abrasive materials. The sealing lip is supported by an o-ring as a preload element.
The operating conditions of this seal are max. 3 bar at a sliding speed of max. 2 m/s.
Pressures of up to 10 bar are possible under static conditions.
Temperature NBR/Fabric: -30 °C / +100 °C (+120)
Sliding speed NBR/Fabric: ≤ 2 m/s
Temperature HNBR/Fabric: -40 °C / +150 °C (+175)
Sliding speed HNBR/Fabric: ≤ 3 m/s
Temperature FKM/Fabric: -20 °C / +200 °C (+250)
Sliding speed FKM/Fabric: ≤ 4 m/s
Other materials are available for very high or very low operating temperatures. For detailled information, please look at the specific PDF catalogue or contact our application engineers.Load product catalog