groove shape Ball shaped High stiffness Small deformation capabilities Avoid metal to metal contact (Particle generation) Big influence of geometric tolerances Dovetail shaped Low stiffness Large deformation capabilities Metal to metal contact possible (design measures)DuPont has developed a unique seal design to improve seal life in dovetail grooves. Tongue-and-groove joints are popular for making doors, flooring, and architectural paneling. Then, calculate the O-Ring groove diameter as follows: a. Undersized Cutter Design Allows Climb Milling Both Faces of Groove for Improved Finish. May 1, 2017. 53mm) and bigger. To create a retaining-ring groove, click the Retaining Ring Grooves tab. Dovetail Groove Design Charts Cross Sectional Dimensions AS568A Series O-Ring Cross Section Gland Width Squeeze Gland Depth Gland Corner Radii Actual. This groove is difficult and expensive to machine, and the tolerances are especially critical. The wall inclination creates a groove with a trapezium cross-section, whose main purpose is to hold the O-ring in during installation and maintenance. Modifications to. KENAT: Regarding the taper in the plan view of your new sketch, consider the Fig 6-24, (p. Since a dovetail gland does not work with plastic components due to undercuts, nubs. Metalworking’s leading information resource. Larger overlap between groove lip and trapezoidal seal provides a more secure level of retention. Advantages. 5-inch capacity and the two-way clamping force you get from the X-Pad (and its ability to hold round stock) has our woodworkers really excited. Mate Diameter: Displays a reference value for the diameter of the non-grooved mating part that completes the. There is a weight visualization hole next to the weight adjustment dial, you can quickly see the change of dumbbell weight, which is intuitive and so convenient. Because of the difficulty in creating the groove and tight tolerances required, this type of seal application should only be used when necessary. Concerning this, geometry, material selection, and stress calculation need to perform at the predesign phase. 8M high quality products and 80 sextillion configurable parts available with fast shipping and low. The breakthrough dovetail clamp arm design gives you the freedom to create your own track grooves allowing you to clamp virtually anywhere. The following information is a guide for o’ring. This can be done by using a dovetail. Dovetail: The O-ring is also axially squeezed in a dovetail groove. . World Class; Certifications; Contact Us; Call Us: Seal & Design Canada: Toronto, Ontario (416) 741-7005 Toll Free: 1-866-242-3770 Headquarters: Clarence, NY (716) 759-3344 Higbee Division: Syracuse, NYIn the dovetail groove design, radius r1 never contacts the O-ring – so it does not affect the seal. This groove design is relatively uncommon as it is expensive to machine and should not be used unless absolutely required. In dovetail drawer joints, the tongues look like actual. Proudly made in the USA by AB Tools, Inc. 001" increments. However there is very little void space and volume. Installation steps This recommended practice provides the design criteria for static elastomeric O-ring seals used specifically in engine and engine control systems. O bag Groove Design Creole. Dovetail grooves are used to hold the O-ring in-place on a face seal groove during during assembly and maintenance of equipment. 2360 Palumbo Drive. O-ring. This friction-fit seal design aides in assembly without the need for adhesive or redesigning the gland. -Material: Ductile iron . long, and bases to 96 in. . Your o-ring will stretch as much as the groove ID is. O-Ring groove design +. 1-30). Dynamic Seal TypesDovetail O-ring design. 139 inch (3,53 mm) and bigger. Dovetail grooves help hold orings in place during installation and maintenance and are recommended for O-rings that have a larger cross-section. The top is wide and the bottom is smaller, you can easily put the dumbbell back on the dumbbell base. • For ®the Quad-Rings/X-Rings not listed, the groove dimensions are available upon request. Mold EX-Press (3D CAD Library) FAQ. a lid which opens regularly. By simply entering installation specifications for an application, it recommends O-Ring sizes, housing layout and corresponding part. 1-30). Mills Both Top and Bottom Radii. 4-10 Parker Hannifi n Corporation • O-Ring Division 2360 Palumbo Drive, Lexington, KY 40509 Phone: (859) 269-2351 † Fax: (859) 335-5128 Static O-Ring Sealing Parker O. 500 Major Diameter. Manufactured by Kaiser Tool Co. O’ring Groove Design. Re: Dovetail Grooves with Part Design Workbench. Grooves. In dovetail drawer joints, the tongues look like actual. RAPiD Design. These dovetail inserts can be used on conventional, Swiss-type and CNC machines. CNC ground from solid carbide in the USA, this 3 flute tool is fully stocked in uncoated, AlTiN coated, and TiB2 coated styles. world design provides improved installation into both straight-wall and dovetail grooves. This groove design is relatively uncommon as it is expensive to machine and should not be used unless absolutely required. #groove #nxcad #nx1980Please Support Us. 412 . O-Ring inner diameter stretch, outer diameter squeeze. …All stock is tongue and groove edges, end matched (end t&g) and back relieved. oesmailbox@parker. Typ. Insert sizes are . Do one once as a library feature and you can drag and drop to add them in. In either case, these tools represent a significant investment but one many gun owners are loath to make. In the Grooves dialog box: To create an O-ring groove, click the O-Ring Grooves tab. Gland width is to sharp edge of groove. 3/8" (9. . Dovetail rails for detachable sights The SIG Sauer 200 STR has an 11 mm dovetail on the receiver for mounting a diopter rear sight or a scope sight, either directly or via a Picatinny rail adapter. This allows the use of a narrower groove width than a standard O-Ring groove, but can also be used in a standard X-Ring groove. com DOVE-TAIL GLANDS Used to prevent the O-Rings from falling out of the Glands. But the extrusion may also be strong enough to bend a light flange and/or stretch bolts if there are such in your design. The dovetail design of the grooves help lock the concrete in to place, while also eliminating air infiltration. If you’re applying an o-ring to a face seal, you’ll better not use a face seal o-ring groove design, sometimes referred to as a dovetail. A recommended solution for retaining the o-ring is a dovetail gland. Dovetail O-ring groove. In the dovetail groove design, radius r1 never contacts the O-ring – so it does not affect the seal. Dovetail Groove-2%: 5%: Dovetail Groove – Sidewall Height. Browse from 17 included angles in both uncoated and AlTiN coated styles. 070, . 832 . Radius r2 is a critical parameter for improving sealing performance. Dovetail Cutters-Sight Groove Dovetail Cutters. Engineering support services are available for a fee for expert help optimizing critical applications. Create a "master" part with the cut dovetails (brown part). long, and bases to 96 in. 020″! To select a V-Bit in G-Wizard, treat it like an endmill. You also have the option to tick Tangent propagation, which extends the selection to tangential faces. The dimensions listed in the O-Ring Handbook put good compression on the O-ring while preventing the groove from exceeding 100% fill. [Features] · An HSS cutter that corresponds to the O-ring with groove specification. Learn More > Contact. 53mm) and bigger. Gland width is to sharp edge of groove. The gland clearance diagram gives a guide to the relation between hardness, pressure, clearance, and extrusion. 1. Their extreme hardness means they are brittle, so a highly rigid setup, such as a CNC machine, is necessary to prevent. An undercut or dovetail groove has proven beneficial in many applications to keep the o-ring in place. For dovetail grooves, match the centerline of the groove with the centerline of the O-ring. Inserts can groove, turn/bore and generate profiles. This section of Seal Design determines if any standard o-rings are available for an existing groove. Boss seal The groove dimensions are. O-Ring & Engineered Seals. This metric o-ring groove design reference guide will help you find the right radius, back-up, pressure and other o-ring dimensions for basic applications. RE: Double sided dove tail vs one sided dove tail groove for o-ring. 5. Free groove volume. info compression (%) Groove info material. Dovetail Designs Ltd. 005 . Design Chart 4-4: Dovetail Grooves. Noted for its resistance to being pulled apart, also known as tensile strength, the dovetail joint is commonly used to join the sides of a drawer to. EZ-Lok is an axial seal designed for retention in dovetail grooves. How To Layout A Dovetail Box. 625”. AS568A-102 (left). R L 66° R1 Mean Groove Diameter Coincides With Mean O-ring Diameter. This groove can either be extruded, or machined using a special dovetail cutter which is available from Spira. a lid which opens regularly. Center the jig appropriately and cut the tails, again following the instructions that accompany your dovetail jig). NX Shortcut Keys - View Full List and Create Custom Keys. e. Boss seal The groove dimensions are incorporated in the standard dimensions. The inserts are available in submicron. The dovetail was about at the limit of what could be machined easily. . My questions are on the design and machining of the oil grooves in the surfaces of the dovetails. These charts give dimensional information relating to standard and o-ring and dovetail o-ring grooves. The angled groove walls are an effective way to retain the seal, because the walls essentially pinch the seal, holding it in position. Route a groove with a ½” 14-degree dovetail router bit. The AS568-901 through -932 O-ring sizes (Parker’s 3- series) are intended to be used for sealing straight thread tube fittings in a boss. S. dovetail: 1 n a mortise joint formed by interlocking tenons and mortises Synonyms: dovetail joint Type of: mortise joint , mortise-and-tenon joint a joint made by inserting tenon on. But an insufficient radius will potentially cause damage to the O-ring during installation, while an excessive radius may result in extrusion failure. This is an expensive groove O-ring groove design is a key consideration in the o-ring selection process. Whether you need bolted flanges or removable lids, this o-ring face seal groove design guide will help you choose the right o-ring for your application. John R. But an insufficient radius will potentially cause damage to the O-ring during installation, while an excessive radius may result in extrusion failure. Axial dovetail fixings are usu-ally employed in the design of the large civil fan blades, and for the front stage of either a military or commercial core compressor where sufficient edge-wise bending strength is required to meet demanding bird impact or foreign ob-ject damage. Two-level optimization predicts designs with the least contact pressure and stress. 0" (25. THINBIT, manufactured by Kaiser Tool Company, has announced the expansion of its GROOVE 'N TURN line of dovetail grooving inserts. The insert design is optimized for strength by utilizing an insert pair to generate the groove form. It is an object of the invention to according to three-level disk oat tail groove structure feature, design a kind of dedicated probe, realize three-level disk Dovetail groove in situ detection. Dovetail grooves are used to hold the O-ring in-place on a face seal groove during during assembly and maintenance of equipment. Download the pdf to. Dovetail joints are beautiful to look at and strong, plus they are the most difficult joints to execute. 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. An undercut or dovetail groove has proven beneficial in many applications to keep the o-ring in place. For bolted flanges or open & close lids. 35 adjuster. It provides axial compression (face type) groove dimensions for aerospace metric O-ring sizes specified in MA2010. DSP Cable Groove; Solid Carbide, 1/8"Ø-1/4"Ø; Solid Carbide, 3/8"Ø-5/8"Ø; Solid Carbide, . wide with saddles to 36 in. To retain them, you need to dovetail the groove (make it a trapezoid shape). There’s a lot to love about the design of MicroJig’s Dovetail Clamp AP. Groove widths . If you’re printing FDM, I would use a soft sheet gasket clamped between flat flange surfaces instead of an o-ring, you’re more likely to get a good seal on the rough printed. Lexington, KY 40509. . Chuo Precision Industrial. Dovetail deck profiles are a highly cost effective deck profile, providing excellent strength, even at longer spans. A novel HPDS with dovetail-like diversion grooves was proposed, and the geometry outline of the dovetail-like diversion groove was described by using the hyperelliptic curve. When there is risk for extrusion use contoured hard rubber or plastic back-up rings. We have included Static, dynamic, and pneumatic applications. The dovetail groove construction is only recommended for O-rings with bigger cross sections, . Dovetail grooves are. EricHill, I regularly use half dovetail o-ring grooves. Do this by taking a chisel and placing it at one end of the base, along the groove, and sliding the guide up to it, then doing the same thing at the opposite end. The correct O-ring groove dimensions and shape will ensure complete compression between the track and the mating surfaces. Dovetail groove cutters are the tool needed to cut a dovetailed groove, recommended for many of Spira’s groove mounted gaskets. Otherwise, the shape of the groove itself is not important. If you go below 7°, you’ll start to lose the mechanical strength of the dovetail. Groove Selection. a lid which opens regularly. Advertisement. One of the easiest ways to ensure care-free installation is by following good design practice as recommended in the Parker O-Ring Handbook. On a table saw, set the cut height for a little more than half the thickness of the drawer side material, and cut a groove to fit the thickness of the drawer bottom material. It’s hard to think of a woodworking joint you can cut faster than a half-blind dovetail — both. It's what you don't see that makes it a. D. Info Hub. For pressures above 103. The reliability of a gas or steam turbine is strongly dependent on the structural design of its blades. All the tails are cut into one piece of wood, called here the tail piece. Compared to traditional O-rings, the Dovetail Seal offers better seal integrity, reducing the potential for process / contamination and allowing for more than twice the sealing force. It’s like an infinite supply of T-track without the cost of T-track. (fig. Weight Visible . 435 . O-Ring Gland Fill %O-Ring Volume) / (Gland Volume) Gland volume vs. The blade and disc's interface region (dovetail) is an integral part that plays an essential role in advanced flight machines. Designed to the Standards Suggested by the O-Ring Division of Parker Hannifin Corporation (ORD 5700/USA, ORD 5700) Designed for Milling Full Dovetail Grooves with Drop Hole Allowance. 005" or . Before assembly, sand the inside faces of the sides and the front and back pieces, and both sides of the top and bottom to 220 grit. In large male gland assemblies, it may be desirable to use an O-ring one size smaller than indicated in the design chart. The design stretch is so small in these large sizes that the O-ring tends to sag out of the groove before it is assembled. Other edge styles including micro-bevel t&g, butt joint or shiplap are available upon request. The dumbbell base is made of ductile iron and has a certain weight. A Z-axis stage that uses a dovetail groove, V groove, and cross roller for the moving guide. Groove Width. Dovetail Clamps move through the tracks below the surface, securing material without getting in the way. 809 . 200 info free groove volume at inst (%) radius (mm) Max. Click Grooves (Toolbox toolbar) or Toolbox > Grooves . . The angle of orientation usually lies between 60° and 90°. In this quick video, I will brief you on the project ahead so that you know what to expect and can get the most from this course. Encourages the shielding performance illustrated in the Shielding Quality data sheets. An undercut or dovetail groove has proven benefi cial in many applications to keep the O-ring in place. c = h · cot α. The dovetail groove samples show a 11% decrease in flexural strength compared to the ones without grooves, this is due to the uneven distribution of resin through the grooves. 20 - Standard Grooving Tools. An undercut or dovetail groove has proven beneficial in many applications to keep the o-ring in place. Dovetail and Half-Dovetail Grooves. Boss Seals . Visit our groove design page. ** These sizes come with a solid elastomer. Good Design Principles. 6Fire. Popular Sealing Material Families. Features long reach and reduced neck styles for deep pocket machining, as well as corner radius geometries for strength. The dovetail key is a device that spans a natural wood defect or a man-made seam to mechanically lock two pieces together. Our custom KLICK Dovetail Router Bit is specifically designed to route the groove for the KLICK and sKLICK. Interchangeable with the standard O-ring used in half-dovetail grooves, making seal replacement in the field quick and easy. For bolted flanges or open & close lids . For designing systems which contain internal pressure, like the example below, the groove's outside diameter (OD) is primary, and the groove's width then determines the inside diameter. These pictured tools are designed to mill a groove for a Parker Hannifin O-ring groove No. About 25% void space or 75% nominal fill. 090”, . Dovetail grooving inserts are used to machine O-ring dovetail grooves with 66-degree undercut angles. 00. CNC, Swiss, Conventional and Round toolholders of various sizes and orientations available. All are made with premium carbide to optimize strength and durability, giving you the longest life and best finish on hard metals. To make this joint, you'll rout the dovetail slot first, then cut and size the dovetail to fit. This type of wood joint is assembled by sliding. 050, . To precisely locate the groove on the face: In the FeatureManager design tree, expand the groove feature. The dovetail groove construction is only recommended for O-rings with bigger cross sections, . For a bore (piston) seal:O-Ring Min Groove Diameter. Dovetail Groove. The contact surface between the wear-resistant ceramic sheet and the vulcanized rubber in the rubber coating of the ceramic drum adopts a good "dovetail groove" design, which makes the contact. Ph: 859-269-2351. A tongue-and-groove joint is a popular option in flooring and wood paneling: this joinery is one of the most self-explanatory wood joints. This o-ring gland design guide is intended for use in specifying o-ring and gland dimensions for static applications Dichtomatik North America. Tongue and groove is a method of fitting similar objects together, edge to edge, used mainly with wood, in flooring, parquetry, panelling, and similar constructions. GROOVE DESIGN. O-ring calculator with complete design analysis. This paper proposes four. 20. X-Rings are designed for improved slow dynamic application performance. In the dovetail groove design, radius r1 never contacts the O-ring – so it does not affect the seal. O-ring design guides for engineers help select the best o-ring material specifications for your applications. O-ring Groove Design in 3 easy steps: Step 1. -Material: Ductile iron . Same groove dimensions as our O-Ring dovetail cutters that match Parker Hannifin standards. 2. Commonly used in hydraulic systems and other applications with substantial pressure fluctuations. News. O-Ring Size Charts O-ring, x-ring and square ring size charts. . Regardless of the rifle type and dovetail width, this unique design is notched onto the rifle's receiver, barrel or slide. As the turbine rotates, the dovetail. Functionally, it’s the same as a butt joint, but with an extra flourish. --. Everything To Know About OnePlus. This recommended practice provides the design criteria for static elastomeric O-ring seals used specifically in engine and engine control systems. Reset Custom Tolerance. Dovetail joinery is a type of tongue-and-groove (or tail-and-pin) box joint. 1 degrees is 1/8. If you're talking turning ''true '' dovetail grooves i. The shape of the O-ring groove depends on the application for the O-ring and can range from triangular to rectangular to dovetail. RE: Dovetail versus half dovetail gland 49again. My question is this: Does any design handbooks cover this specific configuration? I know. X-rings are available in the same USA standard sizes. Thinbit, manufactured by Kaiser Tool, has expanded its Groove ’N Turn line of dovetail grooving inserts, which are used to machine O-ring dovetail grooves with 66-degree undercut angles. . In land-based power generation units, turbine blades are connected to the turbine disk by a dovetail joint or fastener. . With a 10x20 cm cross-section that seems like it might be more doable if I'm understanding the. GROOVE 'N TURN® dovetail grooving inserts are used to machine O-ring dovetail grooves with 66° undercut angles. 19. The first component is the dovetail slot, we'll cut this using a handheld router and a 1/2 inch dovetail bit. 150” with major diameters starting at . Ethylene Propylene EPDM O-Rings Material. Static Gland SealHalf Dovetail Groove. AIR1108. The MATCHFIT dovetail track system allows you to create your own tracks with just a router bit. Create your own clamp tracks anywhere you can route. Choose either HSS or Carbide, depending on what material your V-Bit is made from. Dovetail groove is used to put the O-ring or elastomer dovetail seal during installation. g. e. for gases and 32 Ra max. Try for free View pricing. The flexible Customer Insights Hub for teams and businesses that get you from data to insights fast, no matter the research method. Shop Manual Z-Axis Stages - Dovetail Groove, Rack & Pinion, Long Stroke, ZLWG Series from MISUMI. It is sometimes necessary to mount an O-ring in a face type groove in such a way that it cannot fall out. In radial grooving, the groove is cut perpendicular to the axis of the workpiece, effectively radiating out from the center of a cylindrical part. Surface finishes up to 64 to 125 RMS with no burrs, nicks, or scratches are recommended. In reply to indigetal, The Wudworx dovetail extension does create both tails and pins. Square O-rings – PJSC KAUCHUK Rubber compounds and rubber parts #35. These were known as "mechanical Babbitt anchors" and they were used because chemical tinning processes did not exist. This. 08mm gap between each wall (. com. Abstract. Geometries including lead angles, top rakes, chip breakers, clearance angles and custom forms can. 442 *. groove shape Ball shaped High stiffness Small deformation capabilities Avoid metal to metal contact (Particle generation) Big influence of geometric tolerances Dovetail shaped Low stiffness Large deformation capabilities Metal to metal contact possible (design measures)Installers can drill, tap, or machine the sets to accommodate specific mounting requirements. The top is wide and the bottom is smaller, you can easily put the dumbbell back on the dumbbell base. 4c, dovetail grooves with one side cut off were located at positions 9 mm left and right from the center of the contact surface. In this study, aluminum 6061 (AA6061) plates are explosively cladded with stainless steel 304 (SS304) plates having ‘V’ and dovetail grooves machined on the mating surfaces of the stainless steel…. The face seal design chart below explains the hardware dimensions to use for an O-ring seal when the groove is cut into a flat surface. Certain authors have suggested the use of additional means of secondary retention in class III preparations of primary anterior teeth. Dovetails come in several different types and sizes depending on manufacturer, but the most common are the 11 mm and 3 ⁄ 8 inch (9. or longer in some cases. · Sharpness and machinability are improved by twisting the blade and doubling the flutes. 103″. Design Chart 4-4: Dovetail Grooves Dovetail Grooves It is often necessary to provide some mechanical means for holding an O-ring in a face seal groove during assembly and maintenance of equipment. Single flute carbide O-Ring form tools for lathe applications. [email protected]. No less than 75% of the seal cross-section should be contained within the groove to ensure the seal does not “roll” or extrude out of the groove. Simultaneous O-Ring Groove Compliant Dovetail Grooving and R Chamfering, Powdered High-Speed Steel, TIALN. Surface Finish X groove top and bottom : for liquids X = 32 micro inches (0. The KLICK connector serves as a non-visible, snap-in connector for components with small dimensions, such as Moulding and trims. Take advantage of a drop hole if the part design allows it, as it will permit usage of the largest, most rigid tool possible, minimizing the chance of breakage (Figure 1). Solid Carbide; Carbide Tipped; M42 Large Radii; Full Radius, Top & Bottom. Keep in mind this dovetail groove is a tool path around the entire perimeter of the plate and not just a local feature. There are SO many easier, faster, easier, and faster ways to join 2 boards or to make a box that it comes down to the commitment, the decision to do it the hard way…the best way. Ace Seal's engineering design guide. Dovetail o-ring groove design is used to prevent o-rings from falling out of the gland. On the Mark Two composite 3D printer, for most general purposes, a . O-Ring volume. D. For a rod (shaft) seal:O-Ring Max Groove Diameter = Min Shaft Diameter + (2 x Recommended Gland Depth) b. Dovetail grooves are incorporated into a design to help hold the O-ring in place during installation and maintenance. Before choosing a profile, you have to. sizes with major diameters starting at . In radial seal applications. Reset Custom Tolerance. 24° Per Side, 48° Included. Making a dovetail oring groove is an annoying task on a good day at normal size scales. D. Reasonable design of the cavity shape of the damping hole effectively reduces the leakage rate of the hole-pattern damping seal (HPDS). The tongue is a piece of the wood board that sticks out, and the groove is the space it fits into on the adjacent board. Our Carbide O-Ring Dovetail Cutters meet Parker Hannifin standards. My video shows both tails and pins being created by the Wudworx Dovetail tool. This groove design is relatively uncommon as it is expensive to machine and should not be used unless absolutely required. Rework can also be reduced, as the seal cannot be installed incorrectly or inadvertentlyDovetail grooves are used to hold the O-ring in place during installation or maintenance. Be they circular DT grooves on the face of a part or around the periphery, in over 40 years machining n metal chewing etc etc , I doubt I've made 100 in total - and 60 of those were on one job, and a. In addition to a 5 ⁄ 8" guide bushing, you'll need a 1 ⁄ 4" spiral downcut bit for clean cuts (a 1 ⁄ 4" straight bit will also work) and a 1 ⁄ 2" dovetail bit. Covering 1 groove and other applications of groovesMaterial covered:Dovetail grooveCurvatures and groovesPinning groovesFasteners with groovesToy design groo. 5mm) dovetail, "tip off" rail 3/8" dovetail rails, sometimes call tip off rails, consist of two thin parallel grooves and are used almost exclusively on rimfire rifles and air rifles. Lexington, KY 40509. The angled face must face to the inside of the groove for it to retain the o-ring when the o-ring is streched into the groove. . Gland Design for Static Application for O-rings with Radial Squeeze Industrial Radial Glands INCHES. Recommended surface finish: 16. You can add industry standard O-ring and retaining-ring grooves to your cylindrical model. Fluorosilicone O-Rings FVMQ. 080, . g. Reset Custom Tolerance. Gland Width (G) Gland Depth (L) RadiusWith a miter joint, each piece of wood is cut at a 45-degree angle. Narrower groove for sealing vacuum or gas. For male gland seals, an o-ring is installed in a groove that is machined into the OD of the “piston. Expressing these rules as formulas: y = b - D ( 1 + cot 1/2 α ) Home. The dumbbell base is made of ductile iron and has a certain weight. Drop-holes are sometimes not permitted in a design due to the added stress concentration point it leaves. H-Shaped Ring – solid or hollow, fits straight-walled or dovetail grooves; Lip Seal – maintains friction and lubrication while eliminating contaminants. Dovetail seal Also here there is a metal to metal con-tact as long as the construction will not deform under system pressure. I just completed a similar design using a dovetail groove and about a quarter inch cross-section o-ring on a two and a half inch diameter. x = D ( 1 + cot 1/2 α ) + a. Gland Design for a Static Application; for O-rings in Dovetail Grooves, INCHES. This is an expensive groove to machine, however, and thus should be used only. 090, . This figure is based on NBR O-rings with a cross section of . A second flat face then seals against the. Dovetail o-rings come in a wide variety of widths, diameters, cross-sections and corner radii. The groove design allows the O-ring to be retained in the face seal during assembly and maintenance. But an insufficient radius will potentially cause damage to the O-ring during installation, while an excessive radius may result in extrusion failure. Surface Finish Static Grooves. Download it for free and enhance your knowledge of sealing technology. • Encourages the shielding perfor-mance illustrated in the ShieldingTry to keep the depth of the dovetail groove between 1/3 and 1/2 the thickness of the part. Dovetail O-Ring Groove Design Learn More About Dovetail Groove Design for O-Rings . 00E-0,6), f. Choose whether you are working with existing hardware or designing new hardware.