![]() Common oil seal materials along with their durometers are as follows: The durometer of an oil seal is typically dependent on the material it is made with. See our Oil Seal Materials page for details on compounds and chemical compatibility. The two most prevalent materials are Nitrile and Viton. The elastomer’s resistance to temperature, abrasion, chemicals, weather, sunlight, and ozone can affect a profile’s longevity and performance. Material selection is important to the life of a radial shaft seal. If you have an oil seal you’d like custom designed and made, send us your specifications through our Oil Seal Design Form. Beyond selecting the correct size, the three primary selection criteria are Material, Lip, and Case. Nitrile (Blank) Viton (V), Silicone (S), EPDM (E), Carboxylated Nitrile (X), HNBR (H), Polyacrylate (P), and Teflon (T).Ībove, are all the components of an oil seal and all its naming conventions. Material: There are several material options. Style: 2-5 characters in length (see our style chart at the bottom for details). Shaft, Bore, Width: Dimensions displayed are actual size, rather than nominal. OS/MOS: Designates if dimensions are displayed in inches or millimeters. Conversely, the same size oil seal in Metric has a Shaft Size of 101.6 mm, a Bore Size of 127 mm, and a Width Size of 9.52 mm. 375″, a Style of TB2, and is made of Viton material. In the Search Bar above, simply type the OEM/manufacturer part number alone (no need to type the name), and the oil seals matching that part number will be displayed.Īs an example, this oil seal has a Shaft Size of 4″, a Bore Size of 5.000″, a Width Size of. With over 17,000 unique oil seals in our database, you can cross-reference 180,000 part numbers of OEMs and manufacturers. There are often viable style substitutions which are functionally compatible, but with additional features. When searching for oil seals via our online store, you will not only be presented with your selection but with comparable oil seals of the same dimensions. Global O-Ring and Seal’s oil seal part numbers are designed to describe the seal size, style, and material composition. SHOP FOR OIL SEALS Oil Seal Part Number System Oil seals are most commonly used in gearboxes, hydraulic cylinders, and related components. Oil seals, often called a rotary shaft seal or grease seal, closes the gap between stationary and moving components in mechanical equipment - most often rotating shafts - helping prevent lubricant escape and stopping harmful materials, such as dirt, from moving in through the clearance. International O-Ring Size Cross Reference Table. ![]()
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