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  • 6x22x7mm Nitrile Rubber Rotary Shaft Oil Seal with Garter Spring R21 / SC
  • 6x22x7mm Nitrile Rubber Rotary Shaft Oil Seal with Garter Spring R21 / SC
6x22x7mm Nitrile Rubber Rotary Shaft Oil Seal with Garter Spring R21 / SC
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6x22x7mm Nitrile Rubber Rotary Shaft Oil Seal with Garter Spring R21 / SC

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Oil Seals: Designed to aid trouble-free operation of your equipment, providing an excellent barrier against the escape of oils and greases and preventing the ingress of foreign matter.
Benefits: Excellent wear resistance, good running properties, high resistance to chemicals and petroleum based fuels including petrol, diesel and LPG.

Brand / Quality: Simply NBR Seals - High Quality
Inside Diameter: 6mm
Outside Diameter: 22mm
Width: 7mm
Shaft Size not Inside Diameter (d)
=
6mm
Outside Diameter (D)
=
22mm
Width (b)
=
7mm
Oil Seals
An oil seal normally consists of three basic components: The Sealing Element (the nitrile rubber part), the Metal Case, and the Spring. It is a widely used sealing component. The function of a seal is to prevent the leakage of medium along the moving parts. This is mainly achieved by the sealing element. Nitrile Rubber (NBR)
NBR is the most commonly used seal material. It has good heat resistance properties, good resistance to oils, salt solutions, hydraulic oils, and gasoline. Operation temperatures are recommended from -40deg C to 120deg C. It also functions well under dry environment, but only for intermittent periods.
R21 / SC design cross section

Cross section of an R21 / SC style oil seal.

This is a single sealing lip seal arrangement.

Construction
The seal cases are made from SAE 1008-1010 Carbon Steel and are often coated in a very thin layer of Nitrile rubber to assist sealing in the housing.
The principle function of the metal case is to impart rigidity and strength to the seal.
The spring is made from SAE 1050-1095 Carbon Spring Steel which has a protective zinc coating.
The principle function of the spring is to maintain an even gripping pressure around the shaft

Viton Chemical Resistance

  • Muhammad Amir, United Kingdom 17/12/2019

    5 of 5 Stars!
    The seals i ordered arrived the next day, packaged and delivered in perfect condition.

  • Rex Schwartz, United Kingdom 16/12/2019

    5 of 5 Stars!
    Came to your trade counter for replacement oil seals, the man serving me was very friendly and served me very quickly

  • Clayton Mac, United Kingdom 24/09/2019

    5 of 5 Stars!
    Wonderful service, terrific oil seals!

  • Gavin Braiden, United Kingdom 24/09/2019

    5 of 5 Stars!
    Initially, I thought I was going to struggle finding the correct oil seals however It easy.

  • Damon Juarez, United Kingdom 25/09/2015

    5 of 5 Stars!
    Great company to deal with - Friendly and knowledgeable staff

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6x22x7mm Nitrile Rubber Rotary Shaft Oil Seal with Garter Spring R21 / SC
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Brands

Simply bearings are the UK's largest online retailer of bearings, seals, belts, chains, sprockets, lubricants and other associated power transmission equipment.
Simply Bearings Ltd, Halton House, Greenfold Way, Leigh
Greater Manchester
WN7 3XJ
United kingdom

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