Oil Seals or Rotary Shaft Seals are designed to provide a barrier to retain lubricant and to keep out contamination. They are available in metric and imperial sizes with a variety of sealing lip arrangements the most common of which are:
R21 - Single Sprung Lip
R23 - Single Sprung Lip with the addition of a wiper lip to help keep out contamination
Oil Seals are constructed using a steel case which is usually covered in rubber. Various materials are available the most common materials are:
Nitrile Rubber (NBR) - Temperature Range -40 to +110 degree C - Usually coloured Black
Viton Rubber (FPM) - Temperature Range -30 to +225 degrees C - Usually coloured Brown
Silicone (SI) - Temperature Range -60 to +225 degrees C - Usually coloured Red
Technical advice is only a phone call away. Our experienced team is here to help. Please Call 01527 313575 or contact us here or email us at sales@wychbearings.co.uk