NBR Design AS Rotary Shaft Seal 20x30x4.5mm [10 Pieces]

This rotary shaft seal has an internal diameter of 20 mm, an external diameter of 30 mm and a 4.5 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
• Provided with a dust lip for protection from dirt and corrosion

series

Specifications

Internal diameter (mm) : 20
Seal material : NBR (nitrile rubber)
Outer diameter (mm) : 30
Material spring : Steel
Retaining ring width (mm) : 4.5
Rotary shaft seal design DIN 3760 : AS (type A with dust lip)
Min temperature (°C) : -30
Max temperature (°C) : 100
Alternative designation : AS (BA SL, (TR)E, CC, 827S, DGS, TC, WAS)
Max circumferential speed (m/s) : 14
Metal reinforcement : Open