25 - M 1. 2-Piece Clamp-Type Shaft Collars with Keyways are for use on standard round shafts, hard or soft, as well as on thin wall tube or over a split hub. 012: 4: 0 -0. The value of standard shaft diameter is 66 mm. Keyway misumiKey and keyway dimensions (control in motion) Keyway sizing chartMetric key keyway dimensions. Install them in keyways to transmit torque from shafts to gears and other components. New diameter sizes (13, 16, 17, 18 and 22) are added for h9 tolerance types. 1 +0. 1-1943 standard. Over Width, W Height, H Size, bxh 1 1/4. Meaning the keyway in the hub has a rounded contour instead of a rectangular contour. 3/64. Keyway Depth. It might be worth roughing the keyway underwidth by 1/16" and then profile cut both sides with a nice sharp carbide to straighten it up. If a conveyor must run without a cover, use an expanded. Dimensions: Shaft Diameter (A): 2-15/16" Keyway Width (B): 3/4" Keyway Depth (C): 3/8" Shaft Material: 1018 Steel; Phone: (407) 347-3519 Email: sales. Hub keyway b* P9 / N9 / H9 Shaft keyway h t 1 = d + t 2 t 2** t 3 = d – t 4 t 4 6 2 2 2 7 1 +0,1 4,8 1,2 +0,1 7 2 2 2 8 1 +0,1 5,8 1,2 +0,1. 1 mm) in diameter. Set screws and pins can also work as an alternative to the keyed joint. Shaft (Arbor) Keyway Dimension Size Data - ANSI/ASME. Just seeking opinion on using a true position on a key way slot on a round shaft. Cutting an internal keyway can be a challenging task, but with the right method and tools, it can be done with precision and efficiency. Ruland manufactures them from select North American bar stock in 2024 aluminum for lightweight and low inertia, 1215 lead-free steel for general purpose use, and 303 stainless steel for high corrosion resistance. For a key to function, the shaft and rotating machine element must have a keyway and a keyseat, which is a slot and pocket in. Only informative sections of standards are publicly available. 1 . For more information, to get a formal quote on 2" keyed shaft, or for pricing on any of its accompanying components/ accessories please contact us and we will be happy to assist you. The corresponding shaft tolerance needs to be determined based on whether the fit between the gear and shaft is to be an interfer-ence fit, a transition fit, or a clearance fit. ANSI/AGMA 9002-C14. The shaft may be hollow or solid. We can provide keyed shafts in any length up to 20 foot. 2 - Woodruff Keys and Keyways; B18. Standard keyways provide added torque capacity and fixed shaft phasing. It might be worth roughing the keyway underwidth by 1/16" and then profile cut both sides with a nice sharp carbide to straighten. Width b: Depth : Radius R: Nom: Tolerance Class: Shaft t 1: Hub t 2: Normal: Close: Shaft N9: Hub Js9: Shaft & Hub P6:. Special keyway configurations. of the key will come into uniform contact with the shaft and the hub. 219 (c) (5) (i) The basement, tower, or room occupied by transmission equipment is locked against unauthorized entrance. Over To (Incl. 1-1943 standard. (5). 09/09/2014 10:45 AM. Depends on application and cost. Keyway Width. The standard industrial solution is one square key, with a set screw directly above the key and one at 90 degrees if using a pulley/gear/sprocket with a solid integral hub. Standard Metric Keys Keyways for Metric Bores with One Key. Partially Keyed Rotary Shafts. 1-1967, ASME standard B17. Lots of times it's a pin or a bolt . Position on shaft. Keyway Bore (inches) Reference Height (d) 1. 5000 2. Shaft keyway tapered taper keyways bores wxhParallel key dimensions keyway metric keys rectangular 1958 imperial Keyways keys dimensions metric parallel tolerances engineering fit bs 1972Positive infinite variable gearbox,conveyor chains,couplings,universal. Figure 2 Keyway Sizes. The commonThe shaft shown in the figure is driven by a gear at the right keyway, drives a fan at the left keyway, and is supported by two deep-groove ball bearings. 260". Use the middle of the shaft with bearings and other round-bore components. Install them in keyways to transmit torque from shafts to gears and other components. The key can be withdrawn at will to disengage the mating components. The keys are square or rectangular. A list of standard keyway and corresponding key sizes for English shafts are listed below in Table 1. Referencing Figure 1, the keyway dimension is W x T 1. Referencing Figure 1, the keyway dimension is W x T1. 18 1. 94 inch. 8mm 2. Imperial systems use inches and feet, and these are the standard units. The deviations are less than the basic size. To use this calculator, input your Torque, Shaft Diameter and Key Length values. A key prevents a relative rotation between the two parts, and may enable torque transmission to occur. 5 3. 0000 /. The following tolerances for maximum lead (due to angular displacement of keyseat centerline from centerline of shaft or bore and measured at right angles to the shaft or bore centerline) of keyseats in shaft and bore are specified: 0. Index the adapter 180 degrees on rotor shaft (see Figure 6-22 C). These keys are rectangular or square solid bars that fit into matching keyways machined into the shaft and the component bore. 020 0. 1 “Keys and Keyseats”. The design of the key joint consists of a shaft, hub, and key as shown below fig. A shaft key prevents a relative rotation between the two parts, and may enable torque transmission to occur. The center of the keyway is typically located 1/3 of the. 5 SHAPE, DIMENSIONS AND TOLERANCES OF KEYWAYS 8 -4 X Sect ion X-X Detail A Vaiues in millimetres Shaft Keyl ) Keyway Diameter d Width b Depth*) Sect ion bXh Radius r Tolerante for class fit Free Normal Close Shaft tl Shaft Hub Hub and hub H9 DIO IV9 Js9 P9 nom. The designation of dimensions of taper keys and keyways are shown in Figure 4 and 5 respectively and are defined as follows: b – the cross-sectional width of the key h – the cross-sectional height of the key h1 – height of the gib head l – length of the key b1 – width of keyway for the shaft b2 – width of keyway for the hubKey (engineering) In mechanical engineering, a key is a machine element used to connect a rotating machine element to a shaft. This material is precision ground to offer tighter tolerances than standard 316. ASME Code states that for shaft made of a specified ASTM steel: Ss (allowable) = 30% of Sy but not over 18% of Sult for shafts without keyways. clearance fit bores with set screws. O. 3125 0. 5. The hub keyway is dimensioned by its width and depth on the shaft – keyway sides. 6 - M 18. Two PDFs with useful engineering data on keyway sizes and engineering limits and fits, just download. 003-0. This standard is applicable to couplings as defined in ANSI/AGMA 9009-D02, Flexible Couplings - Nomenclature for Flexible Couplings, with metric bores and keyways. The following tables show standard dimensions for keys and their grooves. These tables can be used to find the approximate shaft diameter for various service conditions. ANSI/AGMA 9002-A86 was based upon the design criteria related to bores and keyways in coupling hubs that had evolved over many years of successful industry practice. This is a +/- band clearance; the value of the. Nominal Shaft Diameter Nominal Key Size Normal Keyseat Depth Over Up to and Incl. The bottom portion of the Woodruff key fits into the circular keyway in the shaft. --Satyanarayan Gangaram Pitroda Addeddate 2013-09-10 07:34:16Standard Calculator Bore Size. It helps to transmit torque. Keyseat is a recess in the shaft and the Keyway is the recess in the hub to receive the key and thus securely lock the component. Keyway metric key dimensions standard keyways keys bores shaft hub depth iso diameter engineering table edge width millimetersWoodruff ansi fasteners nominal Woodruff ansi metric keyway fasteners nominalParallel dimensions metric keyway key keys 1972. positioned on the shaft and the key slot and keyway are aligned, the taper key is inserted and pressed or hammered tightly into place. This is an undersized clearance. Flat saddle keys. Metric Shaft Size Keyway Width Keyway Depth Stock Lengths 5/8" 3/16" 3/32" 13mm: 5mm: 2. 19-1997 Keyway Stresses for Non-metallic Gears and. Standard Metric Keys and Keyway Bores. The keyways correspond to the ASME USAS B17. Rectangular-faced keys are used for larger shaft diameters and square keys are used for shafts smaller than 6. As bushing bores approach the maximum recommended diameters, keyway depths are reduced in order to extend maximum bores as much as. 039. The sizes and tolerances contained in this Standard are intended for single key applications only. If the technician installed a key that measured 8″ long × ¾” × ¾” and then mounted the coupling onto the shaft it would result in an excessive key length sticking out past the back edge of the coupling hub. Saddle keys The saddle keys are of the following two types : 1. Make sure 'lock-tight' is used on the set screw or make the screw long enough to use a nut to wedge it tight for vibration resiistance. Motors and gearboxes that generate high torque and acceleration may make shaft keys obsolete. What is the purpose of a keyway in construction?Securing a belt pulley to a drive shaft often seems like such a routine task, that engineers and mechanics can easily overlook some of the selection and installation factors required. . A keyed joint is used to ensure orientation or restrict rotational movement between parts, as in the case of joining a shaft with a coupling. 6 1. 9-11, and 9-12 Figure 9. Standard Keyway Dimensions Shaft Diameter Set Screw Width Depth Up through 7/16" 8-32 3/32 3/64. Re: NEMA Motor Shaft Dimensions and Tolerances. Technical Data: rated torque from 10 - 800 Nm shaft diameter from 5 - 72 mm. Standard keyway dimensionsStandard shaft sizes key bushing table qd non bore keys shallow range gates includes specific each also Keyway chartShaft and hub keyway dimensions. Quality drop forged yokes coupled with relubricable needle bearings. 1. I've selected a shear strength = S s = 200 MPa, and a compressive strength = S c = 130 MPa. Specification. The main reason of failure of shaft and keyways in shaft-hub connection is the shear stress, so the focus is done on it. Dimensions standard keyseat keyway shaft shafts diameter nominal. The table above shows the dimension of the keyway / keyseat for each available hub bore diameter. Keyway Bore Diameter Size Bore Reference -0. The standard keyway depth in the shaft is 1/2 the keystock size. 060 +0. Coupling Diameter: 6. 14. a) PSfrag replacements b) Figure 1: The two standard keyway ends for parallel keys. Regards Tyrone. Mechanical & Motion Systems. Metric – Rectangular B. In order to transmit rotation from the shaft to the hub of gear wheels, pulleys, sprockets, couplings, flanges and other coaxial parts, rigid and frictional joints of various types are used. width depth tol. Email: sales@usarollerchain. There are generally two keys we place between the shaft and hub as a tangency. A rounded bottom allows these keys to rock in their seat to relieve stress on the shaft caused by vibration or misalignment. 2. As seen by the image, the top part of the key is also rounded. DIN Standard. Referencing Figure 1, the keyway dimension is W x T1. Because this key stock is slightly larger than standard key stock, keys will fit tightly in worn keyways. The gib head makes them easy to remove when parts need to be taken apart frequently, such as for maintenance or prototyping. Recommended ANSI Standard Keys and Keyseats Design per. 1/4’’ keyways. The prole keyway is cut by an end-mile while the sled-runner keyway is cut by an ordinary milling cutter. 015-0. 5 - 4. W x T2 Keyway ISO Standard — mm Snart Dlameter WI dth Groove dimensions keys DIN 6E-ga Shut 1 (With • 1972. Figure 1 - Keyway and Key Size Dimension Reference. Page 1 of 3. Double-check the key-way's width and depth as it pertains to your assembly, however. The keyless POWER-LOCK connection is durable and not affected by torsional load reversal or impact, which can damage keys and keyway connections. 020 0. Shaft and hub keyway dimensionsKeyways shaft keyway coupling shafts drive apart rotate two installing should asked driver question common am if when. That combined amount of clearance forgives a few thousandths of off-centeredness to a shaft keyway. British Standard :BS 46 Part 1 : 1958 Keys and keyways and taper pins. 99. 38 1958. Tapered Gib Keys. Clean and degrease the shaft. D,d Depth. Schlage Keyway Types. 1 8 3 +0. 1 1. --keyway dimensions Keyway sizing chartDimensions standard keyseat keyway shaft shafts diameter nominal. 1 d1(or d) (Ø) O. The keys are square or rectangular. 00: 10:. Turn ground and polished shafting is better than standard shaft because it provides a much easier installation for bearings, collars, sprockets, and other accessories. Check Details. (i. The information contained with ANSI/AGMA 9002-A86 did not necessarily agree with some commonly used specifications. 000. Metric module, side fit. Keyway (Shaft. Use the keyways with machine keys to transmit torque to gears, sprockets, and other keyed components. Orthwein [4] suggested a designStandard keyways provide added torque capacity and fixed shaft phasing. Direct interchange with Spicer 1000 series. The gib head makes them easy to remove when parts need to be taken apart frequently, such as for maintenance or prototyping. 4. 19-1997. 025 mm and +0. 19-1997 ; Keyway Stresses for Non-metallic Gears and Shafts Formulas and Calculator; Shaft (Arbor) Keyway Dimensionl Data - ANSI/ASME B94. Woodruff Key Assortments. Cutting a standard keyseat in a shaft and in a gear or sprocket will give a nice tap fit for the key. BS 4235-2:1977, ISO 3912-1977: Specification for metric keys and keyways - Woodruff keys and keyways. 5020 2. Woodruff Keys. Keys shaft rectangular types key chart hub designs tapered machine selectionStandard keyway size chart Metric woodruff keys are supplied to din 6888 / iso 3912 in c45k. js9 widt. 010 Height (d) (t) - DIM Keyway Width (w) AGMA 9002-A86 Inch Bore and ANSI B17. Inch (ANSI/AGMA 9002-B4) Metric (ISO/R773) corresponding keyways for Metric shafts are listed below in Table 2. . Ultimate tensile strength 580MPa, Yield stress approx 300 MPa. 5. 28. Since most inch shaft Tolerancing is controlled by NEMA and/or AGMA, (both standards agree up to 6. BS 5686:1986, ISO 14-1982: Specification for straight-sided splines for cylindrical shafts: metric nominal dimensions, tolerances and gauging requirements. 000 / +0. ). Recommendations for key size, length and keyway depth as a function of shaft diameter are provided in ASME Standards B17. B. 025 2 0-0. Keys shaft rectangular types key chart hub designs tapered machine selectionStandard keyway size chart Metric woodruff keys are supplied to din 6888 / iso 3912 in c45k. Tapered Gib Keys. 010 0. 5020 2. from the split. 4 Prior to mounting the hubs, place the keys in the shaft keyways. The strength in torsion, of shafts made of ductile materials are usually calculated on the basis of the maximum shear theory. In stock and ready to ship. Nearly every shaft diameter has a corresponding standard keyway width and depth – this calculator helps you find it. Feather key: This is a parallel key with rounded ends. Key and keyway dimensions (control in motion) Keyway shaft coupling hole service couplings modification additional motion control tapered parallel Keyway chart. Click here to purchase the full version from the ANSI store. Here we can calculate rigid connections, namely the pinned, keyed, splined and flanged ones. If using a set screw to secure a pulley etc to a shaft you should use two spaced at 45 degrees apart. 010 Height (d) (t) - DIM Keyway Width (w) AGMA 9002-A86 Inch Bore and ANSI B17. Do not operate conveyors without covers. A key prevents a relative rotation between the two parts, and may enable torque transmission to occur. 8 6. 9. The standard lengths for shafts are 5m, 6m, and 7m, but they are usually taken as 1m to 2m. This is according the DIN OK. They have a square or rectangular cross section. The second is a P9 tolerance. AUTOMATION & IIOT. This is useful when the hub/pulley has to slide axially on the shaft to. The shafts revolutions range from 17 to 54 per minute (rpm). TruKey® Shafting from Keystone is designed to provide the straightest, most accurate keyed shafting, in the industry. 2 To facilitate the cutting of keyways on the shaft and in the hub, they may be located 180” apart, by agreement between the interested Parties. The following tables show standard dimensions for keys and their. any shaft from 1. The common specification dimension, Key Size, is highlighted. Nominal Bore Diameter Clearance Bore Interference Bore Keyway “T”-DIM +0. Only informative sections of standards are publicly available. Machine keys are often the same material as the shaft and other components with which they are used. KeyWay. Install them in keyways to transmit torque from shafts to gears and other components. These keys have a tapered body that wedges in to the keyway for a more secure fit than standard machine keys. Tapered Gib Keys. 3 mm. 424 Minimum 2. 2 TECHNICAL INFORMATION Imperial Standards BS 46: Part 1: 1958 1/4 1/2 1/8 x 1/8Install them in keyways to transmit torque from shafts to gears and other components. This type of shaft has a tighter tolerance, nicer finish, and has been polished. Rectangular or square parallel keys. A key is a piece of metal used to connect a rotating machine element to the shaft. Made of carbon steel, they have high strength and are better than plastic gears and gear racks for high-load, high-speed, and heavy duty applications. It is likely to slip round the shaft under. Saddle keys are one of the shaft key types which is installed on the surface of the shaft and not in the keyway on the shaft. It is also possible to make a calculation. It's a way of using the standard to control a manufacturing process with a drawing. Keyway Width ( w ) Over 1/2" to and including 1" +0. Most keyways in a shaft are half the height of the key plus . corresponding keyways for Metric shafts are listed below in Table 2. 020 0. Re-design the shaft shown below to be a uniform,Metric woodruff keys are supplied to din 6888 / iso 3912 in c45k key All torque transmissions resourcesKeyway chart bore resources torque alltorquetransmissions. These values are to be reduced by 25% if the shafts have keyways. The hollow saddle key is a taper key that fits in a keyway in the hub. All hubs supplied standard with one set screw. This is why you remain in the best website to look the incredible ebook to have. Title of Legally Binding Document: Parallel Keys and Keyways Number of Amendments: 2 Equivalence: Superceding: IS 2710 Superceded by: LEGALLY BINDING DOCUMENT Step Out From the Old to the New--Jawaharlal Nehru Invent a new India using knowledge. This is an undersized clearance. 112 MPa for shafts without allowance for keyways; 84 MPa for shafts with allowance for keyways; The most commonly used material for developing power-transmission shafts are Hot rolled steel bars, low-carbon steel, or an alloy (AISI/SAE 4140, 4340, and 8620). ISO. 2-1967. 1 1. 4 2. 1) of the diameter of the shaft. Inspection methods for straight and tapered bores and. Where can I obtain a copy of the metric standards?. . scope: This standard establishes a uniform relationship between shaft size and key size for parallel and taper keys retaining similar basic sizing as found in the withdrawn B17. The first is Js9. Functional key length: 267,5mm (= length - (0,5x width)) Shaft material S355J2G3 (St52. 1 Class 1 standards for dimensions and tolerances. 8 0. As noted in it "This is a condensation of the standards on motors included in NEMA Standards Publication Motors and Generators, MG 1-2006. Metric Keyways Dimensions ISO/R773. 1/2. For special purposes, stainless steel shafts usually of steel designation 304 or 316 shall be used. Plastic Gears and GearRacks— 14 1/2° Pressure Angle. 018 0RoyMech Resources Keyways BS 46 :1958 Parallel Keys and Keyway Dimensions These Pages include various standards. T. As noted above, when selecting a keyway tolerance, there are two common selections in the metric system. 360 Minimum 2. ASME standard B17. Page Count: 34. 16-0. Spur gears produce no thrust forces, however, be sure to fasten them firmly with stepped shafts or collars to prevent shifting toward the shaft. British Standard Metric Keyways for Square and Rectangular Parallel Keys 11 5/16 3/8 7/16 1/2 3/4 3/4 7/8 Nominal Diameter, d 6 1/2. ANSI B18. 53. Related terms:. xls Author: paul Created Date:Full Length Pre-Keyed Shafting. While popular on external shaft keyways, milling is much less popular for cutting the inside. 5 times the shaft diameter to ensure a good load distribution over the entire key length when the shaft becomes twisted when loaded in torsion. Keys and keyways, splines. Moore. Shaft Diameter. DIN 6885/2 Keyways d b P9/JS9 Hub keyway b P9/N9 Shaft keyway h t1 = d + t2 t2 t3 = d - t4 t4 11 4 4 4 12. A list of standard keyway and corresponding key sizes for English shafts are listed below in Table 1. Standard keyways for shafts are typically located along the length of the shaft with the centerline of the keyway being parallel to the axis of the shaft. Machine keys – also called shaft keys or key seats - are removable machine elements installed between shaft key seats and hub keyways to transmit torque in power transmission assemblies. New keyless locking devices offer an alternative for challenging motion applicationsOur 5/8" shaft with keyway will serve your assembly well. Andy Lechner, Product Manager for R+W America is an expert in this field. +35 0. A shaft narrower than the applicable shaft diameter should not be used. Keys and keyways. 1 - Square and Rectangular Keys and Keyways; B18. 6 when the torque is transmitted without the key. These shafts have keyways only on the ends, leaving a plain shaft in the center. Keyways Index KeyWay & Key Dimensions. Machine Key Comprehensive Guide. It is noted that this is equivalent to a stress concentration. Keys standard metric keyways mechanicalMetric keyway shaft depth reference dimensions diameter iso r773 width Metric woodruff keys are supplied to din 6888 / iso 3912 in c45k keyKeyway metric dimensions keys. 350 Maximum 2. The standard dimensioning of the keyway is like above. 5. 1 The two standard keyway ends for parallel keys. S. The keyway in the tailshaft shall be produced in such a manner that, at the forward end of the keyway, the total depth at the side is half the thickness of the key. The shaft key can fix, only if the shaft has a key seat and the hub has a keyway. Keyway size charts can come in both imperial and metric measurements. The gear can then be fitted onto the shaft and the keyway on the gear will fit over the key, inserted in the shaft. The gib head makes them easy to remove when parts need to be taken apart frequently, such as for maintenance or prototyping. Keys with greater width tolerance. They have a square or rectangular cross section. There are tables for this in "Machinery's Handbook". Dimensions: Shaft Diameter (A): 3-7/16" Keyway Width (B): 7/8" Keyway Depth (C): 7/16" Shaft Material: 1018 Steel; Phone: (407) 347-3519 Email: sales. In stock and ready to ship. . If your measuring from the OD of the shaft there is a formula in Machinery Handbook to add that dimension to the half size of the key but don't depend on it for the right depth to cut to. G&G Manufacturing Company 4432 McKinley Street P. The tolerance zone for shaft keyway width b with normal fit is ISO N9 and with close fit ISO P9. C +0. One could have skipped the step. Standard Metric Keys & Keyways for Metric Bores with One Key • Couplings (Page 2 of 2) All Types 427-140 Reo a 21 (P eso) oola e el 11 pesees 2 Telepoe 22 a 22 eoo Key & Keyway Dimensions – Millimeters Coupling Hub Keyway Dimensions – Inches Shaft Diameter “D” Key Size Nominal Keyway Width Hub “W” Keyway Depth Hub “T2” Shaft Diameter vs Key Sizes Design Recommendations. This technique is used for parts like a gear, hub or pulley. finished steel stock for parallel keys. Title: keyway dimensions. Appropriate fits can be established for each shaft size and published in a standard. Standard keyway dimensionsKeyway chart Keyshaft keyed shaft, diameter 1 7/16 in, keyway 3/8 in x 3/16 inKeyway slot key shaft. Keys and keyways secure the hub and shaft to prevent relative movement between a power transmitting shaft and an attached component. For instance, if standard tolerancing on stainless keys is, say, 0. 3 mm) in diameter with a standard bar clamp. a) End-milled or prole keyway b) Sled-runner keyway. 5 Interference Fits Components can be attached to a shaft without a key or spline by using. 18 to 7. 3 Keys and Keyways P gear d T a b bearings are self-aligning l so act as simple supports FIGURE P9-3 P9-03. Often times you can kiss the key itself with a file to make it a nice fit. 020 0. Jul 26, 2022 — by ML Engineering Content Editor in Machine Elements & Structural Engineering Keys and keyways are a very important part of shafts and power. In stock and ready to ship. Inc. Standard keyways run full length. = 55 MPa for shaft without keyway = 40 MPa for shaft with keyway . 18-8 stainless steel key stock offers a balance of strength and corrosion resistance. 1. When selecting a keyway tolerance, there are two common selec-tions in the metric system. . The following table includes standard rectangular shaft key sizes for shaft diameters ranging from 5/16" to 9": Standard rectangular key stock is readily available from most Gates Industrial Distributors. O. Metric Standard Parallel Keyway and Key Sizes Shaft Diameter (mm) Keyway (mm) Key (mm)* From To Width (W) Depth (h) Width (W) Depth (T) 6 8 2 1. 5000 2. Choose from our selection of keyway stock, including machine key stock, rounded machine keys, and more. Standard Type: 20. The adaptor allows the measuring apparatus to rest on the top surface or outside diameter of the shaft so that the measuring apparatus can be used to measure the centrality of the side walls. Taper Keys/Gib Head Keys. 2 Exceptions . All keyed Shafting is guaranteed to fit on a bearing, and the ends can. xx / -0. - Series F couplings supplied with 4) All dimensions per AGMA 9002-A86Standard keyway sizes chartStandard keyway dimensions Metric key keyway dimensions per iso/r773. 25.