W68755056-R21-NBR Rotary Shaft Seal - Nitrile Rubber (NBR) Imperial 5.500" x 6.875" x 0.563"

W68755056-R21-NBR Rotary Shaft Seal - Nitrile Rubber (NBR) Imperial 5.500'' x 6.875'' x 0.563''
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Brand:  TTO
Measurement Unit  Imperial
Material  Nitrile Rubber (NBR)
Inside Diameter  139.70mm
Outside Diameter  174.63mm
Width  14.29mm
Lip Style  R21 Single Lip

Availability  

  

Our Price:  £20.62(Exc. 20% VAT)(£24.74 Inc. VAT)
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W68755056-R21-NBR Rotary Shaft Seal - Nitrile Rubber (NBR) Imperial 5.500" x 6.875" x 0.563"

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
Oil Seal Lip Designs

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