OS20x30x4mm R21 Oil Seal
£1.76
£1.47
In stock
SKU
22328
Internal Diameter: 20mm
External Diameter: 30mm
Width: 4mm
Style: R21
Material: Nitrile 70
External Diameter: 30mm
Width: 4mm
Style: R21
Material: Nitrile 70
Bearing Shop UK hold large stocks of OS20x30x4mm R21 Oil Seals, with an inside diameter of 20mm, an outside diameter of 30mm, and a width of 4mm.
An Oil Seal (also known as a Shaft Seal, Lip Seal or Elastomeric Lip Seal), is a simple device for excluding dust, dirt, water or any other contaminant whilst retaining lubricant in rotary shaft equipment. Generally, Oil Seals have been developed as a means of protecting the bearings of rotating shafts.
R21 Oil Seals have a metal body which is rubber coated and contains a single sprung lip. R23 Oil Seals have an extra lip called a 'Wiper Lip', and are sometimes referred to as 'Double Lip'.
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