21x32x7mm R21/SC Single Lip Nitrile Rotary Shaft Oil Seal with Garter Spring

In stock
SKU: 21x32x7-R21
Single lip nitrile rubber metric rotary shaft oil seal with garter spring 21mm inside x 32mm outside x 7mm wide.
Regular price From £1.90
£1.58 exc.VAT

Product details

  • SKU 21x32x7-R21
  • Inside diameter (d) 21mm
  • Outside diameter (D) 32mm
  • Width (B) 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