The table below lists recommended dimensions for dynamic rotary seal glands by as568a oring dash numbers. Available now our user friendly and easy to use the o ring groove calculator. Typical reciprocating dynamic oring static seal glands grooves see gland groove. A great start is arp1231, gland design, elastomeric oring seals, general considerations. Oring housing data for piston and piston rod sealing applications. The application determines the rubber compound, the primary factor being the fluid to be. Save time calculating and designing oring grooves and verify the oring sealing performance by checking parameters like oring compression, free groove volume, oring inner diameter stretch and even much more. The oring groove calculator enables engineers to specify an oring groove for any given oring or vice versa calculates the best suitable size oring for any given groove. Oring groove design plays an important part in how an oring seals. Nov 10, 2015 so far on this blog weve discussed oring sizes, the materials theyre made from, and the ways in which they can be used. If you dont understand it already, start by reading standard as568 oring sizing. This motion can be reciprocating, rotary, or oscillating.
Worldwide unique online calculation tool taking into consideration of the thermal expansion of. These types of glands are used in most dynamic applications recommended surface finish. Numerous factors go into the appropriate design of an oring gland. Available now our user friendly and easy to use the oring groove calculator. Having a circular cross section that functions as a seal, in both static and dynamic applications, by being compressed between the mating surfaces comprising the walls of the gland, in which it is installed. The o ring groove calculator enables engineers to specify an o ring groove for any given o ring or vice versa calculates the best suitable size o ring for any given groove.
Parker hannifin corporation oring division 2360 palumbo drive, lexington, ky 40509 phone. A dynamic seal application is best described as one where there is motion between a hardware component and the sealing element. Dynamic oring sealing applications are considerably more involved than static applications due to the implied motion against the oring seal interface. Otherwise many bad things will happen to your design. O ring seals for static and nonrotary dynamic applications. The table below provides a standard set of guidelines to assist you in your design. Great design variety special shapes, x and drings are also on offer.
Select a quadring brand crosssection size from the available standard sizes. Dynamic oring sealing dynamic oring glands parkero. This metric oring groove design reference guide will help you find the right radius, backup, pressure and other oring dimensions for basic applications. Dynamic oring glands parkeroringhandbook 5700 handbook dynamic oring sealing 534 seals buildwiththebest. Dynamic oring gland width and depth and diameter default recomendations. Parkers calculators not only address standard oring sizes, but allow users to custom design oring glands and seals specifically for their application. Static oring guide engineering design guide for static. Groove design can reduce the tendency for extrusion.
Technical data static oring axial face seal glands. Radial and dynamic seals require the presence of a diametrical clearance gap for installation. What you need to know about dynamic seal applications. Oring groove design considerations and engineering guides for static face seals, metric orings, static dovetail orings, static rodpiston orings and dynamic rodpiston orings.
Considerations on the use of orings static seal dynamic. This depends on friction per square inch of groove area times the area of each particular size 0ring. Once you understand oring sizes, lets discuss how to use orings for lowpressure 0200 psig static sealing applications. Both are interlinked, thus ensuring the best possible combination of the calculated oring size and material choice. Metric o ring groove dimensions are listed for the most common metric cross sections with and without backup rings. When designing grooves for static axial seals, the first consideration is whether the. These donutshaped engineered high performance seals, seal connections in equipment by forcing a rubber seal into a channel and applying mechanical or hydraulic pressure to prevent clearance of a less viscous material. As568b cs depth inches % liquids gases radius004 to050.
Squeeze inches o ring cross section diameter in inches gland depth. Oring installation design and specification for dynamic reciprocating applications. For seals with a flat oring contact area, its best to place the oring into the groove and press the jacket axially onto it, keeping the parts in place until the housing groove is closed. The design of the groove where the oring sits plays a major role in how the oring performs its sealing role. The best one was from national but good luck finding one now. Designing the parts of an application where orings will be applied is broadly termed oring groove design. Once you find the right o ring groove design you can easily order online from the worlds largest. The following sizes are not normally recommended for dynamic service, although special applications may permit their use. Selecting orings for static and dynamic applications. These stock metric dimension cutters conform to the standards suggested by the seal division of parker hannifin corp.
Determine the maximum clearance present in your application. The apple rubber seal design guide was first published in. Design chart for industrial recip rocating oring packing glands oring 2size. Blog archive 2020 4 2020 4 april 1 march 2 february 1 2019 2 september 1 january 1 2018 8 november 1 october 1 august 1 july 1 june 1 how to. Select an o ring crosssection size from the available standard sizes. The engineering design guides developed by ace seal are intended to provide assistance with gland design static axial applications.
Ficient design static oring groove design mechanical. An o ring is a simple and versatile ring shaped packing or sealing device. Squeeze inches oring cross section diameter in inches gland depth. Oring groove design guides for face seal flange, dovetail flange, static cylinder and piston, and dynamic cylinder and piston designs. Please consult with your o ring manufacturer for custom or application specific requirements.
Groove dimensions are shown in the tables beginning on page 8. Quadring brand seals for static and nonrotary dynamic applications. Oring seals for static and nonrotary dynamic applications. Both are interlinked, thus ensuring the best possible combination of the. Oring d 1 mm the d 1value will not exactly correspond to standard oring dimensions. Oring gland design dynamic applications there are three types of dynamic applications. Metric oring groove dimensions are listed for the most common metric cross sections with and without backup rings. Take the guesswork out of seal design and material selection with our. Oring compression this says how much interference this is before compressing the oring. In order to seal properly the oring has to deform in the application by being compressed and stretched in any number of ways. If you are unsure what crosssection size to use, see here. By paul vizzio orings are generally the most reliable and repeatable way to achieve water and airtight sealing i. Dynamic oring sealing dynamic oring glands parkeroringhandbook. As important as the oring seal itself is the groove that the oring seats into.
Oring housing data for axial and triangular sealing applications. Xrings are also made to surpass the performance of a standard oring in rotary seal applications. For dynamic applications, the largest cross sectional sizes available should be used to. Guide for design table 52 after selecting gland dimensions, read horizontally to determine proper oring size number. Design chart for industrial recip rocating o ring packing glands o ring 2size as568aw cross section l gland depth squeeze ea. An oring, also known as a packing, is a flexible gasket in the shape of a loop. Dynamic orings are diverse, providing a wide range of uses, and selecting the right one for your application is key for achieving maximum oring performance.
Dynamic seals require additional design factors including lighter squeeze to help eliminate friction, wear, and heat buildup. Static axial engineering design guide ace seals gland. No less than 75% of the seal crosssection should be contained within the groove to ensure the seal does not roll or extrude out of the groove. Eriks technical manual oring gland design information. I have oring design handbooks from at least a dozen suppliers. In this post, well talk about the common types of oring applications, and their impact on oring sizing and hardware design. Dynamic pneumatic static and dynamic dynamic pneumatic static and. Dynamic moving rod and piston oring gland default design chart. Oring design procedure using mobile inphorm parker recommends utilizing our design tools mobile inphorm and the oring selectordesign software to guide the user through the design and selection of an oring and corresponding seal gland. Although resembling a simple oring groove concept, the mold in place fastener seal offers numerous advantages. After you have verified your nominal oring size functionality within your assembly, specify design your oring groove gland. One general guideline for good oring application and design is to maintain a range of % sqeeze on the oring 1040% for static and no more than 30% for dynamic. Browse design considerations and recommendations for static face seals, metric orings, static dovetail orings, static rodpiston orings and dynamic rodpiston orings.
The eriks oring design calculator features the calculation of. To complete the o ring design process, the o ring material needs to be specified based on the seals anticipated environment. For static application, i recommend 3040% compression, so lets say 35%. These developmental design guides make it easier for the user to install and manipulate orings with a standard axial squeeze gland design. Select an oring crosssection size from the available standard sizes. The engineering design guide provided by ace seal will help you navigate the wide range of static oring applications used for sealing, including.
We have included static, dynamic, and pneumatic applications. Oring seals are best in dynamic applications when used on. Total indicator reading between groove and adja cent bearing surface. With a face seal, simply match the id of the oring to the od of the oring groove. Ive tried using equations with swmass, and ive tried using another body to. Reference charts for designing the right oring groove dimensions for optimal oring performance, then order orings online from the worlds largest oring inventory network. Dynamic oring sealing applications are considerably more. Dynamic oring groove design guide a rod and piston glands.
Select an oring crosssection size from the available standard. There are a number of factors that should be carefully considered when designing the gland for a dynamic rotary oring application. Aerospace recommended practice arp1232, arp1233 and arp1234 cover oring gland seal design for the as568 series orings. Oring design procedure using mobile inphorm parker recommends utilizing our design tools mobile inphorm and the oring selector design software to guide the user through the design and selection of an oring and corresponding seal gland. This specification covers many aspects to consider in oring seal design. This allows the use of a narrower groove width than a standard oring groove, but can also be used in a standard oring groove. Selecting high performance o rings for static and dynamic applications. The parker one is decent but their inphorm software isnt worth the electrons its written on. Types of oring applications gallagher fluid seals, inc. Oring seals from freudenberg sealing technologies can be adapted across all industries and market segments to technically demanding installation and operating conditions on a customerspecific basis. Gland design for dynamic seals oring and xring machining.
O ring groove design chart g groove width crosssection gland squeeze diametral no backup one backup two backup groove normal actual depth actual % clearance ring g ring g1 rings g2 radius. Several factors should be considered when installing an oring energized piston seal into a split groove. Other portions of this handbook on basic oring elastomers section ii and oring applications section iii are helpful in determining when such special designs are in dicated and provide useful data for such modi. Global oring and seal offers a large selection of metric oring sizes in various compounds.
Make sure the squeeze % is sufficiently high enough to seal, but low enough to allow dynamic movements. To complete the oring design process, the oring material needs to be specified based on the seals anticipated environment. Technical handbook orings in designing an oring seal, it is important to determine the oring compound early, as the compound selected may have an influence on the gland design. As568b cs depth inches % dc 0 br 1 br 2 br radius004 to050. The match with standard oring dimensions can be obtained by changing the initial stretch value. If there is still no match, then the only remaining options are to change the design of the bore or groove or both. Eriks nv oring technical handbook oring gland design. Dynamic oring sealing parker oring handbook gland dimensions for industrial reciprocating oring seals groove diameter rod gland tolerance. Design validation with dynamic designer allows you to build, test and refine the function of your cad models and output the same performance information typically gathered physically. O rings are a critical component of nearly every type of application. Dynamic designer allows you understand the true dynamic function of your design inside the solid edge environment before you produce or assemble physical hardware. Contact ace seal regarding our static orings engineering guide today. Oring installation design and specification for dynamic.
An oring is a simple and versatile ring shaped packing or sealing device. Gland depth x groove width area of the gland must be larger than the cross section area of the o ring pi x r2. The following chart gives typical gland dimensions for common o ring sizes within reciprocating dynamic applications. Find the recommended o ring size and gland dimensions in the appropriate design table in static o ring sealing or dynamic o ring sealing, sections iv and v, respectively. A metric oring simply means that the size of the oring is defined in millimeters. The o ring can exert static or dynamic sealing actions. Resistance to fluids must be more carefully scrutinized than in conventional static seal designs since a volumetric increase in the oring in excess of approximately 20% may lead to friction and wear difficulties and. Gland depth x groove width area of the gland must be larger than the cross section area of the oring pi x r2. Orings design guidelines, specifications, materials. For industrial use, order the o ring by the parker compound number followed by the size number.
Parker oring handbook 5700 handbook introduction 12 seals build with the best. Browse design considerations and recommendations for static face seals, metric o rings, static dovetail o rings, static rodpiston o rings and dynamic rodpiston o rings. Dynamic vacuum sealing there is very little data available on dynamic vacuum seals, but reasonably low. This dynamic oring groove design guide for rod and piston glands will help you find the dynamic oring thatas right for your application. The fourlobed design produces a more secure seal to counteract spiral twisting. Groove design for oring installation oring groove dimensions may be calculated as follows.
Design of groove geometry and oring selection piston seal. Parker recommends utilizing our design tools mobile inphorm and the oring selector design software to guide the user through the design and selection of an oring and corresponding seal gland. The groove must be designed to accommodate not just the oring size, but also its intended usage. Static oring groove design of rod and piston glands is a key consideration when selecting orings for common static radial applications. Metric oring groove designs vary greatly and choosing the right one for your application is important for maximum oring performance. O ring groove design is a key consideration in the o ring selection process. Dynamic moving rod and piston oring groove design basics. Feb 15, 2019 basically, the o ring would be modeled in a resting state, the internal diameter changed likely in an installed configuration to fit a larger diameter o ring groove, and the o ring thickness would change accordingly with no change in the part mass. Oring groove design is a key consideration in the oring selection process.