- Outer casing: metal, machined
- Spring-loaded sealing lip
- Additional dust lip (B1….SL)
- Sealing lip profile, sealing lip machined on the front face
- Sealing lip profile, finished sealing lip (B1FUD/B1FUDSL).
- Broad range of applications in every sector of industry
- Metal housing for especially firm and precise seating in the bore (Note: limited static sealing on the outer casing for low viscosity and gaseous media)
- Additional dust lip as additional seal against moderate to medium dust and dirt ingress from outside (B1FUDSL). (Note: can lead to temperature increase from frictional heat).
- Industrial gearboxes
- Axles (when subject to moderate dirt)
- Power tools.