If the edges of two parts need to be sealed or if a bit of cushioning is required inside of a component that contains two adjacent materials, O-rings may be needed. O-rings are constructed of elastomers and may possess distinct qualities, depending upon the application that they are utilized for.
1. How an O-Ring Works
O-rings will be sized to fit between grooves that surround parts that are being connected. You may find them in pull levers, button layouts, or in products that can be folded up and expanded. Rings are essential in preventing the transfer of liquids or gases. With an application that is going to utilize chemicals or gaseous materials, an O-ring will maintain its shape and will act as a buffer against any foreign materials that it is exposed to.
When two parts are compressed, O-rings that are within the pieces that are being moved will have pressure applied to them. The O-rings will press against the grooves and will stop the movement of the dual parts, without risking damage to small components that make up the inside of an item.
2. Types of O-Rings
When designing a product, you'll outline how it'll be used; this information will aid a designer in creating a prototype that will efficiently fulfill the targeted use of an item. O-rings may become one of the components that is necessary for the design of a new product.
The size of the rings and the number of rings will depend upon their location within a part and the amount of pressure that will be applied to the elastomers that comprise each ring. Silicone and fluorosilicone rings are resilient to high and low temperatures and are often used in products that will be used outdoors or in working environments that may fluctuate in temperature.
Fluoroelastomers can withstand chemical applications and are also suitable for use in high temperatures. Ethylene propylene is resistant to steam and hot water, alcohol, and many materials that are used in the automotive industry. Nitrile is an organic compound that is adequate for use in hydraulics. Nitrile rings will maintain their strength and shape in applications that require the use of hydraulic oil and grease.
Choose an O-ring style based upon the variables surrounding the product that is being designed. Order through an O-ring provider and request samples of some products to guide you in choosing a particular ring type.
