Description
This rotary shaft seal has an internal diameter of 185 mm, an external diameter of 230 mm and a 16 mm width. It is used to seal rotating machine components.
This seal consists of an NBR ring with an external reinforcement plate and a worm spring made of spring steel. The plate has a reinforcing cap. Sealing and assembly are the same as design B. Preferably used in harsh operating conditions and for larger dimensions. Suitable for a shaft circumferential speed of up to 14 m/s.
Pros:
- Suitable for temperatures from -30 to 100°C (-22 to 212°F)
- Less sensitive to assembly errors thanks to the reinforcing cap


![NBR O-ring 135 x 8mm (OD 151mm) 70 Shore A [2 Pieces]](https://www.toolportal.shop/wp-content/uploads/2025/11/nbr-o-ring-135-x-8mm-od-151mm-70-shore-a-2-pieces-ukrazfzi40856.webp)



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