o-ring dovetail groove design calculator. Click image above to see design charge, table and guide 5-2 . o-ring dovetail groove design calculator

 
 Click image above to see design charge, table and guide 5-2 o-ring dovetail groove design calculator  Excessive system pressure

D. However, installing an O-ring into these grooves can be tricky without proper technique. comUpdate images of o ring gland design guide by website awesomeenglish. O-Ring volume • About 25% void space or 75% nominal fill • Need space in groove to allow for volume swell, thermal expansion, and increasing width due to squeeze • Narrower groove for sealing vacuum or gas • O-Ring can extrude into clearance gap or get squeezed in. not possible with solid-O’s due to gland overfill concerns. The Standard O-Ring Loaded U-Cup profile is square in cross section and it is suitable for both rod and piston applications. edu. For guidance on specific groove types and interfaces, it is essential to check industry specifications and other resources for O-ring design. 114 0. As shown in above figure, an O-ring also gets compressed axially in a dovetail groove. 004Static Radial Glans Design Application. Because of the difficulty in creating the groove and tight tolerances required, this type of seal application should only be. O-ring Groove Design in 3 easy steps: Step 1. vn September 24, 2023. D. 2487 RFQ. O-Ring & Engineered Seals. edu. 000 +. sizes with major diameters starting at . O-ring Groove Design in 3 easy steps: Step 1. Sealing & Shielding Blogs. These charts give dimensional information relating to standard and o-ring and dovetail o-ring grooves. Standard o-rings are available in various cross-sections and inside dimensions (ID). First find the chart for the O-ring cross section size: 0. Dovetail Cutters are cutting tools that create a trapezoidal-type shape, or a dovetail groove, in a part. The inserts are available in submicron. Choose between more than 30 groove materials and 11 O-ring compounds! Benefit from a modern user friendly design and be guided from design rec-ommendations from info boxes. Whether your application conforms to U. 25 3. With the O-ring calculator, engineers can specify the groove dimensions for a specific O-ring or a specific groove. For those who are unfamiliar with O-ring design, it is recommended to first study this introductory section, becoming familiar with the basic principles of O-ring sealing, their common uses and general limitations. O-Ring Compatibility O-ring compatibility information for. • Easy to use • PDF output • Saving of your designs Review the general o-ring groove design considerations before moving onto the specific o-ring gland design type. . Groove Width: Increase: Increase: Diameter of Bore or Rod: Decrease: Decrease: Surface Finish (O-Ring) Increase: Stretch O-ring: Joule Effect* Compress O-Ring: Lower Durometer: Coefficient of Friction# Increase: of O-ring : Durometer * Refer to rotary seals. O-ring calculator with complete design analysis. EPDM O-Rings. How to use - Watch our Video Dovetail grooves are used to hold the O-ring in place during installation or maintenance. TPU O-ring with high wear and extrusion resistance, for high-pressure applications and small housings with no space for back-up rings, green. DOVETAIL GLAND AND O-RING DIAMETER DEFAULT RECOMMENDATIONS-005 0. The dovetail groove construction is only recommended for O-rings with bigger cross sections, . O-ring sire. Note that the dovetail groove becomes rectangular when the base angle a = 90°. Or, very high temperatures can cause the seal to thermally expand, also leading to overfill. An O-ring. Does anyone know a reliable (non custom) tool for this kind of axial groove? Material is 1. O-Ring Calculator. To create a retaining-ring groove, click the Retaining Ring Grooves tab. Compression set values generally increase with increased temperature and time. Ph: 859-269-2351. RE: Dovetail versus half dovetail gland. Dovetail grooves are used to hold the O-ring in place on a face seal groove during assembly and maintenance of equipment. vn September 21, 2023. edu. 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. The first straight cut thro the center is known as the "Primary" slot its normally slightly deeper than the finished depth of the dovetail if the depth is not stated on the drg make it . O-Ring/Gland Analysis Tool. 증가하면서 ( Pressure > 0 ) 밀폐력 ( Sealing Force ) 또한 커진다. THINBIT, manufactured by Kaiser Tool Company, has announced the expansion of its GROOVE 'N TURN line of dovetail grooving inserts. The tracking information your a guide for o’ring groove frame by. 4-18 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-Ring Handbook For Internal Pressure (outward pressure direction) dimension the groove by its outside diameter (H ) and width: O (H ) = Mean O. Parker Hannifin O-Ring & Engineered Seals 2360 Palumbo Drive Lexington, KY 40509 Ph: 859-269-2351 Fax: 859-335-5128 oesmailbox@parker. Chemraz® O-Rings FFKM. vn compilation. Originally the nominal size was just for a listing of the approximate fractional dimensions of the O-ring. To avoid tearing or nicking, the use of O-ring lubrication is recommended while installing the O-ring into the dovetail gland. Gland Design for a Static Application for O-rings in Dovetail Grooves, METRIC Dovetail grooves are used to hold the O-ring in place during installation or maintenance. The ERIKS O-ring design. An O-ring must be squeezed and stretched for proper functionality. Wider outlet drain운동용 (Dynamic sealing )의 경우 : 6 ~ 18%. vn September 18, 2023. Home; Blog; About Us; Contact; Update more than 114 o ring groove design latest. An initial squeeze of the O-ring in the dovetail groove is essential to ensure that the seal functions correctly. edu. Download the pdf to access tables, charts, formulas, and. At AB Tools, Inc. 5 was of a standard face seal, the o-ring would fall out as the valve cycles up. Smarter Shopping, Better Living! Aliexpress. For reciprocating O-rings: a compression ratio of 10-20%. 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, NYTimelord (Mechanical) 15 Dec 08 16:29. By xkldase. vn September 16, 2023. It is the most common and most widely known type of seal in use today. U. For reciprocating O-rings: a compression ratio of 10-20%. 3. Insert sizes are . O-ring groove design is a key consideration in the o-ring selection process. It also provides detailed tables and charts for various O-Ring sizes, materials, and. 14. For items comes to o-ring groove design, there are a few item you need to hold in mind. Solid Carbide; Carbide Tipped; M42 Large Radii; Full Radius, Top & Bottom. Browse online today. 3. EIKOSHA Starting from: 136. For industrial use, order the O-ring by the Parker compound number followed by the size number. Groove design can reduce the tendency for extrusion. You can select more than 30 groove materials and 11 compounds of the O rings online. The insert design uses an insert pair to generate the groove form. 300 in. edu. For the groove radii, just follow parker handbook recommendations for the inner and outer. Millions of O-rings however, are used very successfully in reciprocating hydraulic, pneumatic, and other fluid systems which employ long stroke, large diameter. vn compilation. 145 0. Designed for milling dovetail grooves for sight attachments, this fully stocked Harvey Tool product offering of Sight Groove . D. Update images of o ring groove design by website xkldase. The Standard design can be widely used toAdvantages: • O-ring calculations expanded for custom O-ring results. The gland supports the O-ring in its place, and provides the necessary deformation. The O-ring has become the world's most popular and versatile seal due to its simple shape, low space requirements and its availability in a vast selection of sizes and compounds to meet every industrial requirement. Standard; Metric; Without Drop Hole; Half Dovetail; Lathes; Special Quote Form; Dovetail Cutters. g. Solid Carbide; Carbide Tipped; M42 Large Radii; Full Radius, Top & Bottom. There are also images related to o-ring groove dimensions pdf, o-ring groove . Prior to the common use of dial calipers many people called out a 1 inch by 1-1/4 rt = O-ring, this was a dash -214. There are also images related toO-Ring Dovetail Cutters. Example: N0674-70 2-325. Request a quote and have it shipped the same day! Use our o-ring size chart and calculator to find the AS568 or metric sizing of standard size HNBR, Viton, and other o-rings. Seal Types and Gland Design. Standard O-RingsParker Seals - Leading supplier of sealing solutions | Ashton SealsJust select the seal and application type, input your bore, piston, and groove diameters, and the O-rings inside diameter (ID) and cross section (C/S). Techno Ad specializes in supply of sealing solutions and engineering support related to design and problem solving of sealing requirements for all industries. Inser. Proper O-ring Face Seal (ORFS) fitting assembly and installation steps: Step 1: Inspect the tube end for a O-ring. Click Grooves (Toolbox toolbar) or Toolbox > Grooves . 4-10 Parker Hannifi n Corporation • O-Ring Division 2360 Palumbo Drive, Lexington, KY 40509This offering of Parker Hannifin O-Ring Dovetail Cutters WITH Drop Hole Allowance is designed for milling a full dovetail gro. edu. I found that the chips welded to the groove for the first 1/2 inch or so, until some clearance developed. (design measures) 22 Sealing Details / Elastomer seals Stress plots of O-ring /standard P. , at the hard-ware and O-ring tolerance stack-up) and the smallest possible O-ring in the largest possible groove. EPDM O-Rings. Skip to content. O-Ring Groove (Gland) Design Guide. 1-23). 11:29. = A Max. Choose whether you are working with existing hardware or designing new hardware. a. 122 0. DSP Cable Groove; Solid Carbide, 1/8"Ø-1/4"Ø; Solid Carbide, 3/8"Ø-5/8"Ø; Solid Carbide, . Standard o-rings are available in various cross-sections and inside dimensions (ID). check out this article to learn about our best tips for the successful design. 3. Skip to content. Select a standard, groove type, and available groove size from the lists on the top left of the tab. Dovetail grooves are a great mechanism for holding O-rings in place. Markez® O-Rings FFKM. a lid which opens regularly. 030”,. com. X-rings are available in the same USA standard. This type of cycling can result in the pinch location widening to the point the seal is not longer retained. The assemblage of both mating surfaces squeezes the O-ring in between them, creating a tight seal. The O-ring sits in the groove and is compressed during assembly, creating a seal between two surfaces. Configure. . dovetail or half-dovetail grooves, are encountered but are much less common. 4-18 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-Ring Handbook For Internal Pressure (outward pressure direction) dimension the groove by its outside diameter (H ) and width: O (H ) = Mean O. There are also images related toO-Ring Dovetail Cutters. The groove design allows the O-ring to be retained in the face seal during assembly and maintenance. By simply entering installation specifications for an application, it recommends O-Ring sizes, housing layout and corresponding part. Catalog & Design Guide; How to Calculate Fastener Spacing;. 139 inch (3,53 mm) and larger. While the application pressure may cause the O-ring to shift slightly, this is still considered a static seal. O-Ring groove 자료를 찾아보면 Depth, Width 부분에 있어 약간씩 차이가 있고흔히 clearance/gap 이라고 하는 부분은 지정해주는 카탈로그도 있고 하기의 "F" 값만 주고 clearance/gap 은 명기하지 않는 경우가 대부분임설계자가 케이스 별. These O-rings have cross sections of 0. Lubricating the O-ringThe ERIKS O-Ring design calculator features the calculation of: for axial seals with inner or outer pressure, piston seals and rod seal applications. comQuick example below (blacked-out part is the O-ring to indicate placement). Popular Sealing Material Families. View Guide. The final essential criterion for O-ring design is volume fill, also called gland fill. ERIKS O-Ring Calculator Application temperature (ºC) pressure over pressure compression (%) Groove material Steel (Ck45 etc. Groove width Design Guide 4-2: Guide for Design Table 4-2. Groove design plays an important part in how an o-ring seals. O-rings are successfully used in rectangular or non-circular groove patterns as long as the groove design follows a few basic principles. In addition, the present invention provides a closed. EricHill, I regularly use half dovetail o-ring grooves. 오링보다 압축률이 적으며,낮은 압력에서는 초기 압축률 ( Initial Squeeze )만으로 밀폐력이 형성되나, 압력이. edu. As a global innovator for industries ranging from aerospace to medical and everything in between, we're solving the world's toughest sealing challenges, one o-ring at a time. This flow rate depends to a great extent on how the O-ring is used. As it is pressed against the side, the O-ring is deformed to form the. I. About 25% void space or 75% nominal fill. Fax: 859-335-5128. With the O-ring calculator, engineers can specify the groove dimensions for a specific O-ring or a specific groove. Volume fill is the O-ring volume divided by the gland volume. Example: Based on your groove dimension in a static application, you are looking for an O-ring with 308 mm inner diameter and 5 mm cord thickness. There are also images related to1/2. There are also images related to o-ring groove dimensions pdf, o-ring groove design, Skip to content. Update images of as568 o ring groove dimensions by website awesomeenglish. Learn More > Contact. standard P. In most new designs, the o. AS568A-102 (left). Learn More > Contact. Gland Design for Static Application for O-rings with Radial Squeeze Industrial Radial Glands INCHES. 2. The groove design allows the O-ring to be retained in the axial/face seal during assembly and maintenance. Home; Blog; About Us; Contact; Details 105+ o ring groove calculator best. For complete list of o-ring seal sizes, please use the O-Ring Size Search Tool online at applerubber. O-Ring Groove. Discover more than 123 as568 o ring groove dimensions latest. Recommended surface finish: 16 Ra max. For standard O-ring grooves in the face and radial applications, we recommend 60-90% gland fill. 8 μm Ra) groove sides: X. O-ring material too soft . The groove design allows the O-ring to be retained in the face seal during assembly and maintenance. Narrower groove for sealing vacuum or gas. Cross Section & Groove Design Data. The design conditions are most critical for rotary seals, as would be expected. It is the most common and most widely known type of seal in use today. Made of solid carbide, they are harder, stronger, and more wear resistant than high-speed steel and cobalt steel for the longest life and best finish on hard material. O‑Ring Gland Calculator O‑Ring Size Search Chemical Compatibility Guide Seal Design Guide Material. There are also images related toO-Ring Basics; Dimensional Considerations; Inside Diameter. This O ring online calculation tool takes the thermal expansion of the groove and the chemical volume swell or shrinkage into consideration. Details images of o ring groove design by website vova. Techno Ad's. Learn More. D. This stretch should be between 1%-5% with 2% as the ideal in most applications. O ring size chart metric 554232-As568 o-ring size chart metricFax: (916) 993-3949. for fluids. The conditions considered to formulate the design criteria are also described, e. 20 - Standard Grooving Tools. 1-24). We have made this choice for these reasons: 1. 139 inch (3,53 mm) and bigger. To facilitate this, the inner mating component has a groove machined into its surface at the spot where sealing is required. 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. Dovetail Cutters are cutting tools that create a trapezoidal-type shape, or a dovetail groove, in a part. O-ring Gland Design Dovetail seal Also here there is a metal to metal contact as long as the con-. 10 0. The conditions considered to formulateThe inherent characteristics of the groove design limit the amount of void area. Gland width is to sharp edge of groove. The dovetail groove described in Design Charts 4-4 and 4-5 will serve this function. 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; Undersized Cutter Design Allows Climb Milling Both Faces of Groove for Improved Finish; Mills Both Top and Bottom Radii; 24° Per Side, 48° Included; 2. Sizes and How to Order. †Note: It is recommended that an O-ring with tighter CS tolerance (±. They are available in many configurations to your specifications. Til now I allways used a normal tool to make a straight groove and then used two hand grinded ultra mini boring bars to make the 26° parts. O-Ring Gland Fill % Gland volume vs. vn compilation. AS4716. Parker Hannifi n Corporation • O-Ring Division I 2360 Palumbo Drive, Lexington, KY 40509 Phone: (859) 269-2351 † Fax: (859) 335-5128 o-ring cross-section o-ring diameter dovetail gland cl diameter (f) nom tol +/- nom tol +/- nom tol +/-dovetail gland and o-ring width and depth default recommendations dovetail gland and o-ring diameter default recommendations-005 0. An undercut or dovetail groove has proven benefi cial in many applications to keep the O-ring in place. edu. The groove design allows the O-ring to be retained in the face seal during assembly and maintenance. 103 inches with an included angle of 48°. 222 0. Worldwide unique online calculation tool taking into consideration of the thermal expansion of the construction parts and the O-Ring. 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. 070 0. Update images of o ring gland design guide by website vova. Sometimes, a bit of interference can be designed between the outer diameter of the O-ring and the outer diameter of the groove. AS4716 SAE Aerospace Standard (AS) provides standardized gland (groove) design criteria and dimensions for O-ring seal glands for static and dynamic applications and other seals. (figure 3) Boss Seals The O-ring is used for sealing straight. One general guideline for good O-ring application and design is toO-ring in the smallest possible groove (i. Choose whether you are working with existing hardware or designing new hardware. If you're talking turning ''true '' dovetail grooves i. Both are interlinked, thus ensuring the best possible combination of the calculated O-ring size and material choice. is a trusted supplier of metric dovetail cutters and accessories. The light blue faces in the following image represent a groove. This is an expensive grooveProducts that are often purchased together. , the THINBIT GROOVE ‘N TURN line includes Dovetail grooving inserts and Static O-Ring Grooves. The equations on this page are used. Slots or grooves can be short or long, closed or open, straight or non-straight, deep or shallow, wide or narrow. Tool selection is normally determined by the width and depth of the groove and, to some extent, length. This interactive tool will walk you through calculating values for diameters, compression, tolerance and more for your custom seal application. . In large male gland assemblies, it may be desirable to use an O-ring one size smaller than indicated in the design chart. Fluorosilicone O-Rings FVMQ. by kisolre » Tue Aug 13, 2019 6:51 pm. DT10MM. The O-ring calculator calculates the most relevant size O-ring for any given groove. Dovetail Cutters-Sight Groove Dovetail Cutters. Parker O-Ring Vacuum Sealing Guide is a comprehensive pdf document that provides technical information and best practices for designing and selecting o-ring seals for vacuum applications. See figure 1-12. The online O-Ring Calculator offers engineers and professionals a quick and easy way to calculate O-Ring dimensions and the appropriate housing layout in accordance with the international O-Ring standard ISO 3601. When using a seal with a round inner diameter and a round cross section will work. 002O-Ring Calculator An industry-leading tool, the easy to use O-Ring calculator includes a sizing capability, design parameter recommendations and complete measurements. 20 Sealing Details / Elastomer seals Vulcanized seals dynamic seal. The insert design is optimized for strength by utilizing an insert pair to generate the groove form. vn compilation. Therefore, the volume is displaced, not compressed. 1-23) 2. As important as the o’ring seal even is of groove such the o’ring seats into. Female or Tube - the O-ring groove is located in the housing or cylinder and a tube is installed through the O-ring l. . 4. vn compilation. 1-23) 2. Dovetail groove geometry is a bit of an art. O-Ring & Engineered Seals. Share images of parker hannifin o ring by website awesomeenglish. Calculate Results. O’ring Groove Design. In fact, it would be easier to cut a double dovetail groove since a single would require a tool change while you might actually be able to get away with a single tool in the double dovetail groove if the tool was able to make a plunge cut to. It is used in all types of applications and by a broad range of industries. 070 0. In the Grooves dialog box: To create an O-ring groove, click the O-Ring Grooves tab. But the extrusion may also be strong enough to bend a light flange and/or stretch bolts if there are such in your design. Then, click on the link to specify the material, hardness, and color. 103″. 2. vn September 18, 2023. Volume fill is the O-ring volume divided by the gland volume. Inside is the circle of the corresponding o-ring which should be deleted or turned to construction geometry when. O-Ring volume ; About 25% void space or 75% nominal fill ; Need space in groove to allow for volume swell, thermal expansion, and increasing width due to squeeze ; Narrower groove for sealing vacuum or gas ; O-Ring can extrude into clearance gap or get squeezed in two directions ; O-Ring Eccentricity & Side. 10 0. 010 deeper to stop the dovetail rubbing and cuttings becoming trapped and breaking the tool. See figures 1. Popular Sealing Material Families. Solid Carbide; Carbide Tipped; M42 Large Radii; Full Radius, Top & Bottom. O-Ring inner diameter stretch, outer diameter squeeze. Check out our popular line of AS568 o-rings below. In most new designs, the o. 002-007 0. 06 - Multi Reach Grooving Tools. ) must be smaller than the piston groove diameter, so that the O-ring is slightly stretched, fitting snugly in the groove. For standard O-ring grooves in the face and radial applications, we recommend 60-90% gland fill. 53mm) and bigger. For face seals, an o-ring is installed in a groove that is machined into a. A rubber O-ring seal is used to prevent the loss of a fluid or gas. By awesomeenglish. There are also images related to o-ring groove calculator, o-ring grooveRocket Seals is the leading distributor for O-Rings and many other seals. For guidance on specific groove types and interfaces, it is essential to check industry specifications and other resources for O-ring design. edu. The perfect O-Ring for each purpose. When designing parts featuring O-ring grooves, the consideration of drop-hole allowance is a pivotal first step. This requires looking at the dimensionally largest. 191 0. Check the diameter, wall angle, corner radius and O-ring standard specifications. Similar Tools. Tool #23921 machining a o-ring groove (without drop hole provision) to fit a AS568-204 seal in. 1-23) 2. Surface Finish X groove top and bottom : for liquids X = 32 micro inches (0. Dovetail grooves are used to hold the O-ring in-place on a face seal groove during during assembly and maintenance of equipment. thermal expansion of the groove and the O-ring. Modifications to the o-ring size recommended to optimize the users design. Metric o-ring groove designs vary greatly and choosing the right one for your application is important for maximum o-ring performance. edu. 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. Viewing 10 of 369. This particular setup proved difficult to reproduce consistently, so additional experiments were performed with an O-ring dovetail groove design. • Material listing offered by. vn compilation. Fax: 859-335-5128. 1-23). Bore. 고정용 ( Static sealing )의 경우 : 8~25%. 2360 Palumbo Drive. By netgroup. You just position it according to where the groove should be and revolve around decired axis. Create dovetail grooves that allow O-rings to flex without falling out of place. Choose whether you are working with existing hardware or designing new hardware. Face seals can seal internal pressure, external pressure, or both. By xkldase. When looking at standard dimension for a female gland, a #142 O-ring has a rod OD of 2. 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. The properties of the cross-section of the groove are determined by the opening width b; the depth h; the base angle a; the inner fillet radius r1; and the outer fillet radius r2. Our tools and resources are created for both novice and advanced users, providing the best sealing expertise and design recommendations for today's critical sealing challenges. 375 inches. D. vn compilation. the O-ring in the same direction. Because they can be expensive to machine, O-ring grooves should only be added when necessary or for metric O. This is beneficial for special applications where the O-ring has to be fixed by the groove e. Degradation of O-ring by system fluid . On-size and undersized diameters are also in stock. We have made this choice for these reasons: 1. ERIKS offers different methods of interactive customer solutions, such as our unique O ring compression calculation tool. Example: N0674-70 2-325. The desired percent squeeze should be applied to this cross section diameter. For face seals, an o-ring is installed in a groove that is machined into a. For those who are unfamiliar with O-ring design, it is rec-ommended to fi rst study this introductory section, becoming. Parker Hannifin O-Ring & Engineered Seals 2360 Palumbo Drive Lexington, KY 40509 Ph: 859-269-2351 Fax: 859-335-5128 oesmailbox@parker. 376 through . Our volume calculator can give you a number to apply to our materials and pricing. 20. EPDM. AS568 -004 through -475 Dovetail Seal Design Guidelines: AS-568 DASH # W O-RING CROSS SECTION: G GROOZE WIDTH: H GROOVE DEPTH: R1 RADIUS: R RADIUS: SHARPEDGE: ROUNDEDEDGE: Inch +. Top images of o ring groove design calculator by website vova. Calculate squeeze of course as well. The inherent characteristics of the groove design limit the amount of void area. A Dovetail provides a retaining feature in a face seal gland. The seal effect is created during installation by axial or radial compression of the cross-section. O-Rings. For complete list of o-ring seal sizes, please use the O-Ring Size Search Tool online at applerubber. By awesomeenglish.