This rotary shaft seal has an internal diameter of 25 mm, an external diameter of 34 mm and a 7 mm width. It is used to seal rotating machine components.
This seal consists of an NBR part with an external reinforcement plate and a worm spring made of spring steel. The plate is pressed in slightly during installation. To ensure a seal at the outer casing, tighter tolerances of the hole in the housing are required. 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)
- Provided with a dust lip for protection from dirt and corrosion
series
Specifications
Internal diameter (mm) : 25
Seal material : NBR (nitrile rubber)
Outer diameter (mm) : 34
Material spring : Steel
Retaining ring width (mm) : 7
Rotary shaft seal design DIN 3760 : BS (type B with dust lip)
Min temperature (°C) : -30
Max temperature (°C) : 100
Alternative designation : BS (B1 SL, (TR)D, BC, 822S, DFS, TB, WBS)
Max circumferential speed (m/s) : 14
Metal jacket : Steel
Metal reinforcement : Fully enclosed
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