NBR Design BO Rotary Shaft Seal 16x21x3mm [10 Pieces]

This rotary shaft seal has an internal diameter of 16 mm, an external diameter of 21 mm and a 3 mm width. It is used to seal rotating machine components.

This seal consists of an NBR ring with an external reinforcement plate. It is designed without the worm spring, intended for minor sealing cases only. 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)

Cons:

• Designed only for minor sealing cases

series

Specifications

Internal diameter (mm) : 16
Seal material : NBR (nitrile rubber)
Outer diameter (mm) : 21
Retaining ring width (mm) : 3
Rotary shaft seal design DIN 3760 : BO (without worm spring)
Min temperature (°C) : -30
Max temperature (°C) : 100
Max circumferential speed (m/s) : 14
Metal reinforcement : Fully enclosed