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  • 15x22x7mm Nitrile Rubber Rotary Shaft Oil Seal with Garter Spring R21 / SC
  • 15x22x7mm Nitrile Rubber Rotary Shaft Oil Seal with Garter Spring R21 / SC
15x22x7mm Nitrile Rubber Rotary Shaft Oil Seal with Garter Spring R21 / SC
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15x22x7mm 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: 15mm
Outside Diameter: 22mm
Width: 7mm
Shaft Size not Inside Diameter (d)
=
15mm
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

  • Rebecca Allen, Uk 19/12/2019

    5 of 5 Stars!
    Amazing quality oil seals were delivered safely and on time.

  • Ahmed Darwin, United Kingdom 26/09/2019

    5 of 5 Stars!
    The oil seals I ordered from you came next day, very pleased

  • Charlie Dale, United Kingdom 13/08/2019

    5 of 5 Stars!
    Very good selection of oil seals with a good range of sizes. Top class service. Thank you

  • Manuel Myles, United Kingdom 13/08/2019

    5 of 5 Stars!
    great range of sizes and types and very helpful sales staff found me just what i needed

  • Nikolai Brody, United Kingdom 20/08/2015

    5 of 5 Stars!
    The seal that arrived in the post was wrong, my fault as I orded a few mm out only realised once I checked the paper work. Sent order back and had the replacement "the correct 1" with me in no time

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15x22x7mm 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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