687 587 050 R21/SC Single Lip Nitrile Rotary Shaft Oil Seal with Garter Spring 5.7/8x6.7/8x1/2 Inch

In stock
SKU: 687x587x050-R21
Single lip nitrile rubber imperial rotary shaft oil seal with garter spring 5.7/8" inside x 6.7/8" outside x 1/2" wide.
Regular price £20.65 inc.VAT
£17.21 exc.VAT
FREE UK MAINLAND DELIVERY ON ORDERS OVER £50

Product details

  • SKU 687x587x050-R21
  • Inside diameter (d) 149.23mm
  • Outside diameter (D) 174.63mm
  • Width (B) 12.7mm
Seals are ideal for excluding dirt, dust, water or any other contaminant whilst retaining lubricant in rotary shaft equipment. They are generally used as a means of protecting the bearings of rotating shafts.

The term nitrile rubber is used for acrylonitrile-butadiene rubber (NBR). This material has very good engineering properties and is a general-purpose sealing lip material. It is a copolymer manufactured from acrylonitrile and butadiene that provides good resistance to the following media:

Most mineral oils and greases with a mineral oil base
Normal fuels like gasoline, diesel and light heating oils
Animal and vegetable oils and fats and hot water