W12508718-R21-NBR Rotary Shaft Seal - Nitrile Rubber (NBR) Imperial 0.875" x 1.250" x 0.188"

W12508718-R21-NBR Rotary Shaft Seal - Nitrile Rubber (NBR) Imperial 0.875'' x 1.250'' x 0.188''
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Brand:  TTO
Measurement Unit  Imperial
Material  Nitrile Rubber (NBR)
Inside Diameter  22.23mm
Outside Diameter  31.75mm
Width  4.76mm
Lip Style  R21 Single Lip

Availability  

  

Our Price:  £3.32(Exc. 20% VAT)(£3.98 Inc. VAT)
–+

Bulk Discounts:

Quantity Price
1 to 4 £3.32
5 to 9 £2.16
10+ £1.66
  (3 Reviews)
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W12508718-R21-NBR Rotary Shaft Seal - Nitrile Rubber (NBR) Imperial 0.875" x 1.250" x 0.188"

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
Average Rating (3 Reviews):  
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Rating:  
Seals
22 August 2022  | 

Good value for money, good service and prompt delivery.

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Rating:  
Rotary shaft seals
28 December 2020  | 

Very prompt service, Just as described. I had a job to find this size on line but Wych Bearings had them in stock.

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Rating:  
B&S crankshaft
18 June 2015  | 

Used on flywheel side of a B&S 2hp rotovator engine type 60203

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