NBR Design A Rotary Shaft Seal 25x40x5mm [10 Pieces]

This rotary shaft seal has an internal diameter of 25 mm, an external diameter of 40 mm and a 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

series

Specifications

Internal diameter (mm) : 25
Seal material : NBR (nitrile rubber)
Outer diameter (mm) : 40
Material spring : Steel
Retaining ring width (mm) : 5
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