Description
This rotary shaft seal has an internal diameter of 30 mm, an external diameter of 56 mm and a 8 mm width. It is used to seal rotating machine components.
This seal consists of an NBR ring with a reinforcement plate and a worm spring made of spring steel. The external rubber-elastic jacket provides stable sealing and tight fit when exposed to high temperatures and high pressures. Suitable for a shaft circumferential speed of up to 14 m/s.
Changing the seal frequently prevents damage to the housing hole. The seal must be assembled according to DIN 3760 to function optimally.
Pros:
- Suitable for temperatures from -30 to 100°C (-22 to 212°F)
- There is no frictional corrosion thanks to the rubber-elastic jacket

![NBR Design A Rotary Shaft Seal 30x56x8mm [5 Pieces]](https://www.toolportal.shop/wp-content/uploads/2025/11/nbr-design-a-rotary-shaft-seal-30x56x8mm-5-pieces-cywblvti32550.webp)


![NBR O-ring 17.3 x 2.4mm (OD 22.1mm) 70 Shore A [100 Pieces]](https://www.toolportal.shop/wp-content/uploads/2025/11/nbr-o-ring-17-3-x-2-4mm-od-22-1mm-70-shore-a-100-pieces-aowhmkpg32517.webp)

Reviews
There are no reviews yet.