![NBR Design C Rotary Shaft Seal 30x55x12mm [5 Pieces]](https://www.toolsbunker.com/wp-content/uploads/2026/09/wedi.c41191f1_99bb094d-2eff-4880-acc0-3863f7b4ec95.jpg)
Description
This rotary shaft seal has an internal diameter of 30 mm, an external diameter of 55 mm and a 12 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 Design B Rotary Shaft Seal 45x60x8mm [5 Pieces]](https://www.toolsbunker.com/wp-content/uploads/2026/09/wedi.c41191f1_c8145b16-f82c-4844-8b9b-feb0bb9eea8b.jpg)
![NBR Design C Rotary Shaft Seal 45x60x10mm [5 Pieces]](https://www.toolsbunker.com/wp-content/uploads/2026/09/wedi.c41191f1_b9bef02a-142c-48b5-b082-5581c16c0b5d.jpg)
![NBR Design AS Rotary Shaft Seal 45x62x7mm [5 Pieces]](https://www.toolsbunker.com/wp-content/uploads/2026/09/wedi.c41191f1_ced4c226-b1b3-4a2d-9f1a-82d8834bedef.jpg)