This rotary shaft seal has an internal diameter of 30 mm, an external diameter of 50 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
series
Specifications
Internal diameter (mm) : 30
Seal material : NBR (nitrile rubber)
Outer diameter (mm) : 50
Material spring : Steel
Retaining ring width (mm) : 8
Rotary shaft seal design DIN 3760 : A (rubberized)
Min temperature (°C) : -30
Max temperature (°C) : 100
Alternative designation : A (BA, (TR)A, CB, 827N, DG, SC, WA)
Max circumferential speed (m/s) : 14
Metal reinforcement : Open
![NBR Design A Rotary Shaft Seal 30x50x8mm [10 Pieces]](https://www.drillforgepro24.com/wp-content/uploads/2026/06/wedi.c41191f1_6b99a2b2-5874-46c5-8eb6-783444f0cd19.webp)
![FKM O-ring 8.5 x 2mm (OD 12.5mm) 80 Shore A [50 Pieces]](https://www.drillforgepro24.com/wp-content/uploads/2026/06/or.19a44f36_c2f4d28c-8eac-4810-9bb1-94b3b3daecf8.webp)
![NBR O-ring 74.2 x 5.7mm (OD 85.6mm) 70 Shore A [20 Pieces]](https://www.drillforgepro24.com/wp-content/uploads/2026/06/or.19a44f36_9e217a7b-e67a-418d-8966-e4c0a3cbd499.webp)
![NBR O-ring 74.3 x 2.62mm (OD 79.54mm) 70 Shore A [20 Pieces]](https://www.drillforgepro24.com/wp-content/uploads/2026/06/or.19a44f36_7c518be1-35d4-4b10-bd38-eb392929e11c.webp)
![FKM O-ring 6.3 x 2.4mm (OD 11.1mm) 80 Shore A [50 Pieces]](https://www.drillforgepro24.com/wp-content/uploads/2026/06/or.19a44f36_9adb16ba-156b-4841-a8e2-78954f00b270.webp)
Reviews
There are no reviews yet.