†. It cannot be used as a feather. by Crystal Bemis on August 1, 2022. ISO/R 774:1969. The following tables show standard dimensions for keys and their grooves. Our 5/8-inch keyed shaft is made with industrial needs in mind, but there are variations. 1) Unless specified by the customer: 2) Actual shaft fit will vary depending on - Series S couplings supplied with actual shaft diameters. Nominal Shaft Diameter Nominal Key Size Normal Keyseat Depth Over Up to and Incl. 12 mm. 060 +0. 003, -. 005, -. Most keyways in a shaft are half the height of the key plus . - Series F couplings supplied with 4) All dimensions per AGMA 9002-A86 The hub keyway is dimensioned by its width and depth on the shaft – keyway sides. rush job because a. 3mm 5mm 5mm 5mm 5mm 6mm 6mm 6mm 8mm 8mm 22mm 24mm 16mm 17mm 19mm 20mm 25mm Keyway Width (w) 10mm 3mm 3mm 1. These keys are rectangular or square solid bars that fit into matching keyways machined into the shaft and the component bore. 5000 2. 15. com. G&G Manufacturing Company 4432 McKinley Street P. Taper Keys/Gib Head Keys. 000 Standard Setscrew Locations If one setscrew is furnished the location. 4 3 3 11 12 4 1. This specification includes index tolerances for multiple keyways. Here, a case study taken on ball mill shaft keyway for investigation of stress concentration factor. Install them in keyways to transmit torque from shafts to gears and other components. Hex, round, and step profiles are available to mate. With the optional shim kit, you can cut keyways or slots in shafts as small as 0. 1(h/d) where e = Shaft strength factor. The standard lengths for shafts are 5m, 6m, and 7m, but they are usually taken as 1m to 2m. (a) end-milled or profile keyway; (b) sled-runner keyway Fig. Shaft with Two Keyways Torque Applied Deformation and Stress Equations and Calculator. still see lots of ordinary keyways in bigger shafts. 42000 KN/m2 for shafts with no allowance for keyways. Easily calculate the values required to cut keyseats and keyways. Further, shafts, along with any other required drive elements, can be made smaller once the keyway notch factor is removed. One of the following methods should be used to specify keyways: Metric: WxH Key W x T2 Keyway British: WxH12 Key W x H Keyway ISO Standard-mm Imperial -Inches 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. To ensure an adequate factor of safety in the design of a shaft with standard keyway (width, one-quarter, and depth, one-eighth of shaft diameter), the former Code for Transmission Shafting tentatively recommended that shafts with keyways be designed on the basis of a solid circular shaft using not more than 75 percent of the working stress. Nominal dimension of key b x h. Most keyways in a shaft are half the height of the key plus . + 0,030 ; yg 0 - 0 0,030 k 0,015 0,012 1,8That combined amount of clearance forgives a few thousandths of off-centeredness to a shaft keyway. - If a part is 6 inches thick, the Wire-cut EDM machine will be able to cut two inches deep per hour. Figure 2 — Types of key and position of keyway in shaft 18 Table 1 — Rectangular parallel keys, keyways and keybars 4 Table 2 — Square parallel keys, keyways and keybars 6 Table 3 — Rectangular taper keys and keyways, gib-head or plain 9 Table 4 — Square taper keys and keyways, gib-head or plain 10 Table 5 — Woodruff keys and keyways 12 1) Unless specified by the customer: 2) Actual shaft fit will vary depending on - Series S couplings supplied with actual shaft diameters. While a designer is free to specify any keyway they wish, straying from the standard option is likely to increase the cost, time, and complexity of the part. Tony, a 1/4" keyway is standard on 1" diameters. 5 Power rating Power ratings of shafts are presented in Tables 2-7. Good for use with square- and hex-profile shafts, these aluminum supports also work with round shafts of any diameter up to. Keyway shaft roymech tolerance Straight-sided splines for cylindrical shafts with internal centering — Dimensions, tolerances and verification. The gib head makes them easy to remove when parts need to be taken apart frequently, such as for maintenance or prototyping. Fit pulley with taper bush on shaft and locate in desired position. Feather key: This is a parallel key with rounded ends. Do not chamfer setscrew hole, deburr with a file. Keyways are generally used in fastening gears to a shaft, and they should be secured by applying drilled holes for set screws, or applying flats to the shaft, in case of fastening only with set screws. and bending for range of shaft diameters from 10 mm to 500 mm as per standard sizes. xls Author: KEITHTypes. Unless otherwise specified, the shaft keyway is assumed. They have a square or rectangular cross section. Metric External Table Chart Thread Designations Sizes M 1. 6 - 8 - 10 - 12 - 14 - 16 - 18 - 20 - 22 - 25 - 28 - 32. 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. Shaft and hub keyway dimensions. Old JIS (Class 2) Standards Unit [mm] Hole diameter b2 t2 Key size b×h; Standard size Tolerance(E9. Unit 2 design of shaft. 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. The shaft key is a machined element used for connecting the transmission shaft to rotating parts like gear. Keys with greater width tolerance. 3. Metric key keyway shaft standard keyways falk keys bores resources industrial Shaft key standard sizes rectangular gates keys diameters most non std readily available3 ways to convert within metric measurements Metric convert measurement measurements conversions easy way within units ways unit decimal number use. where, the Standard Dimension for key = 14mm x 9 mm. 2180 Corporate Lane, Suite 104 ~ Naperville, IL 60563 USA Phone (630) 596-9000 Fax (630) 596-9002 Keyway AGMA 9002-A86 Inch Bore and ANSI B17. This is a +/- band clearance; the value of the. 5 in (170 mm). TruKey® Shafting from Keystone is designed to provide the straightest, most accurate keyed shafting, in the industry. ANSI B18. While ubiquitous and intuitively easy to understand, the key and keyway is a remarkably ineffective technology. 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. Install them in keyways to transmit torque from shafts to gears and other components. 5020 2. Just enter the size of the key and shaft, then click "Calculate". Standard Metric Keys & Keyways for Metric Bores with One Key • Couplings All Types (Page 1 of 2) Metric Key & Keyway Dimensions Per ISO/R773 – Js9 Width Tolerance Key & Keyway Dimensions – Millimeters Falk Coupling Hub Keyway Dimensions – Inches Shaft Diameter “D” Key Size Nominal Keyway Width Hub “W” Keyway Depth. Get In Touch. Quality drop forged yokes coupled with relubricable needle bearings. The hub keyway is dimensioned by its width and depth on the shaft – keyway sides. Position on shaft. All of the measurements listed on the product pages in inches without the keyway width or depth. Standard shaft sizes Standard shaft materials Design of shaft based on strength 8. 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. Stress fields and corresponding torsional-fatigue cracks in shafts with keyways or splines are shown in Figure 2-22. The hollow saddle key is a taper key that fits in a keyway in the hub. 1 Square Keyway Tolerances Minimum 2. This key seems undersized on both counts. 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. Rigid shaft couplings are available with or without keyways in one- and two-piece and set screw designs. 3 Keyseating - The operation of prociucing key- seats. Nominal Dia. 1/4’’ keyways. Machining of square shafts with rounded ends (with or without keyways) Other machining available upon request per prints provided (drill, tap, threading) For Keyway MM Dimensions – see the table at. powerhound (Mechanical) 10 Mar 08 23:14. 000 / -0. International Standard ISO 3117 was developed by Technical Committee ISO/TC 14, Shafts for machinery and accessories, and was circulated to the member. 000 +. A former industry standard, 14½° pressure angle gears are often found on older machinery. BOTTOM OF SHAFT TO BOTTOM OF KEYWAY. 09/09/2014 10:45 AM. D = Shaft Diameter W = Width L = Length K s = Service Factor K a = Application FactorANSI-AGMA 9002 defines standard bore and keyway dimensions for shafts dimensioned in inch units, and ANSI-AGMA 9112 defines standard bore and keyway dimensions for shafts dimensioned in metric units. MISUMI USA has all of your Universal Joints needs covered, with over 3. Cutting rates will vary by the equipment used, but to give a ballpark speed, a standard machine may run at ~12 square inches per hour. Taper keys with or without gib head and their corresponding keyways. HOUR . 19-1997; Design of Square Key and Keyway (Wood Ruff) Stress, Shear and Torque; Parallel Key. Standard keyseated shafting,The hub keyway is dimensioned by its width and depth on the shaft – keyway sides. 3/32. The second is a P9 tolerance. To confirm the status of any standard, identify the replacement standard if it is obsolete and/or purchase the standard please use. js9 widthKeyway dimensions Key and keyway dimensions (control in motion. The shafts revolutions range from 17 to 54 per minute (rpm). The standard dimensioning of the keyway is like above. 53. scope: This standard presents inch dimensions, tolerances, and sizes for straight bores, tapered bores, single keys and keyways for unmounted industrial flexible couplings. 1 Bar Stock - General purpose, negative toi- and taper keys retaining similar basic sizing a s eranced, cold finished steel stock for found in the withdrawn B17. D (Ø) Overall Length (mm) Body Material. 020 0. 030: 0. Tapers - charts and how to measure. 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. f7 (shaft) tolerance range = −0. Key height: 25mm. 3D Printing & CAD. Steel Clamp-Type Shaft Couplings with Keyways. They’re also available in metric. Posted on February 1, 2023 in Industry Formulas. 1 for imperial dimensions and DIN 6885 for metric dimensions. 0mm to 26. Choose from our selection of shaft keys, including rounded machine keys, machine keys, and more. Check how the old prop fits the taper shaft and the amount of draw - i. Keyless hubs are often specified for high speed applications to improve the balance of the assembly and to secure the hub to the. 21. This is a ± band clearanceProblem that I see is that the bush is going to allow the key to "work" side to side, and to use a technical term, "waller" out the keyway, probably the shaft keyway. Keyway Bore Diameter Size Bore Reference -0. --keyway dimensions Keyway sizing chartDimensions standard keyseat keyway shaft shafts diameter nominal. 6 - M 18. potrero, Regarding the alignment of the slots, there is a "simultaneous requirements" rule in GD&T. Offered in two styles:For more information, to get a formal quote on 2-3/16" keyed shaft, or for pricing on any of its accompanying components/ accessories please contact us and we will be happy to assist you. Check Details. ASTM Standard. We stock pre keyed shafting in many diameters, including metric diameters, with standard keyways. Keyshaft keyed shaft, diameter 1 7/16 in, keyway 3/8 in x 3/16 inKeyway parallel keyways metric t2 wxh bores Keyway keyed keyways boresGates belts, hoses, and applications: standard & non-standard shaft key. Spur gears produce no thrust forces, however, be sure to fasten them firmly with stepped shafts or collars to prevent shifting toward the shaft. For more information, to get a formal quote on 2-15/16" keyed shaft, or for pricing on any of its accompanying components/ accessories please contact us and we will be happy to assist you. We can provide keyed shafts in any length up to 20 foot. 1. positioned on the shaft and the key slot and keyway are aligned, the taper key is inserted and pressed or hammered tightly into place. Shaft Keys 101 | Machine Design. 2500 0. These shafts have keyways only on the ends, leaving a plain shaft in the center. 010 / -. Keyway Dimensions Key Dimensions The inch and metric dimensions here correspond to common values. 8 4 4 Shaft (Arbor) Keyway Dimension Size Data - ANSI/ASME B94. 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. Manufacturing will be based upon DIN 6885 - T1. 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. Metric module, side fit. The first is Js9. While popular on external shaft keyways, milling is much less popular for cutting the inside. 8 0. 360 Minimum 2. 1. BS ISO 4156:2005_1: Straight cylindrical involute splines. Title: keyway dimensions. Keyway metric dimensions key iso tolerance js9 r773 width per depth hub t2 height radius text mill question answered hasnSolved 5. 0Rotary Shafts - One End Tapped and Keyway Grooves. 18-8 stainless steel key stock offers a balance of strength and corrosion resistance. 1) The length I is a function of the design. Coping with foreign bore and keyway standards | Machine Design. 25 is a group of 3 standards: B18. Shaft and hub keyway dimensionsKeyways shaft keyway coupling shafts drive apart rotate two installing should asked driver question common am if when. This standard is applicable to couplings as defined in ANSI/AGMA 9009-D02, Flexible Couplings - Nomenclature for Flexible Couplings, with metric bores and keyways. xls Author: paul Created Date:Full Length Pre-Keyed Shafting. 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. Key strength and steel analysis entering into the makeup of stock for keys is not within the. Woodruff keys are usually with splines and the L-LOC spline clamping feature, see section 7. 46 : Part 1 : 1958 DLMENSIONS OP TANGENTIAL KEYS AND KEYWAYS. A key cutter, also known as a keyseat cutter, keyway cutter, or woodruff cutter, is a versatile tool that can be used to cut several different types of keyways. Click here to purchase the full version from the ANSI store. These easy-to-adjust components maintain perpendicularity to <0. Explanation of the constructions of tangent keys is not an easy thing. Keyway metric key iso dimensions standard keyways keys r773 pdf bores shaft hub depth diameter standards engineering table edge. Ann from the top of the shaft, the keyway is shown. This standard presents inch dimensions, tolerances, and sizes for straight bores, tapered bores, single keys and keyways for unmounted industrial flexible couplings. . 025 mm. Check Details. 001 −0 Key. Keyways cut in certain area’s on the shaft. To ensure an adequate factor of safety in the design of a shaft with standard keyway (width, one-quarter, and depth, one-eighth of shaft diameter), the former Code for Transmission Shafting tentatively recommended that shafts with keyways be designed on the basis of a solid circular shaft using not more than 75 percent of the working stress. The hub keyway is dimensioned by its width and depth on the shaft – keyway sides. The taper is 1/8” per foot. 002+0. O. The length of the exposed shaft is approximately 7 inches. 5 - 4. The design of the key joint consists of a shaft, hub, and key as shown below fig. 5020 2. REFERENCE DEPTH. Standard Metric Keys and Keyway Bores. They can be used in transmitting motion and power between two shaft in the same or in opposite directions. BS 46 Rectangular Taper & Gib Head KeyWay & Key Dimensions All Dimensions in inches. 1 mm. 062 0. A single setscrew bearing on a shaft is bad practice and will not. It might be worth roughing the keyway underwidth by 1/16" and then profile cut both sides with a nice sharp carbide to straighten. Woodruff Keys. ). 1BS 4235-2:1977, ISO 3912-1977: Specification for metric keys and keyways - Woodruff keys and keyways. Over To (Incl. Referencing Figure 1, the keyway dimension is W x T1. They can be made using a standard stock material such as key stock or custom machined to suit the application. 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 introduction of a DIN or ANSI standard keyway into a shaft normally reduces the shaft radius by 20 to 25%, and often as much as 50%. Bore and Keyway dimensions comply with ANSI/AGMA 9002-B04 Standard. 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. This specification includes index tolerances for multiple keyways. The shaft key can fix, only if the shaft has a key seat and the hub has a keyway. Check Details. . 3 6. 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. . 180. 3. In manufacturing upon 6885 Information used with permission ot Martin 02007 Shatt Keyseats/Hub Keyways Standard Keyseats/Keyways Sra' IoW Square Keyways Metric: WxHKey W x T2 Keyway American Standard — Inches ShanScenario: The exposed round shafts are completely smooth and have no bolts, holes, or keyways. ANSI Woodruff Keys. This is a +/- band clearance; the value of the tolerance is equally oversized or undersized. Shaft Diameter: key : Keyway (Shaft : Keyway (Hub) Keyway radius: D: Width: Height : W: H. Use the keyways with machine keys to transmit torque to gears, sprockets, and other keyed components. Shaft Diameter vs Key Sizes Design Recommendations Gear Products and Suppliers | Gear Knowledge Menu Recommended ANSI Standard Keys and Keyseats Design per. The following tables show standard dimensions for keys and their. Parallel shaft keys are a type of machine element used to secure the relative rotational position of shafts and components such as gears, pulleys, or couplings that are mounted on them. A key is a piece of metal used to connect a rotating machine element to the shaft. Pul1 up on. Also, applications can be in two directions. All hubs supplied standard with one set screw. Page 1420 | Modi˜cation standads DIN 6885 Keyway, key details Extract Page 1 heavy type d b P9 / JS9 Hub keyway b P9 / N9 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 Keys and keyways. These shafts have keyways only on the ends, leaving a plain shaft in the center. Unless otherwise specified, the shaft keyway is assumed to be standard. To confirm the status of any standard, identify the replacement standard if it is obsolete and/or purchase the standard please use. Keyshaft keyed shaft, diameter 1 7/16 in, keyway 3/8 in x 3/16 inKeyway parallel keyways metric t2 wxh bores Keyway keyed keyways boresGates belts, hoses, and applications: standard & non-standard shaft key. 000 -0. Straight Sided Spline Dimensions. The first is Js9. TruKey® Shafting from Keystone is designed to provide the straightest, most accurate keyed shafting, in the industry. Depends on application and cost. a) PSfrag replacements b) Figure 1: The two standard keyway ends for parallel keys. 6 in. Key (engineering) In mechanical engineering, a key is a machine element used to connect a rotating machine element to a shaft. b x h 1 x D. Re-design the shaft shown below to be a uniform,Keyway chart Shaft standard key sizes rectangular gates keys diameters most non std readily. The commonKey-Depth Tolerance is +. COPYRIGHT 2003; American Society of Mechanical Engineers Document provided by IHS Licensee=Cummins. ASME Code for steel purchased under definite specificationsstandard keyway design in section 5. 5 1. depth tol. Parallel keys. The end of a keyway has two standard designs, shown in Fig. Potential clearance will be between +0. Straight-sided splines for cylindrical shafts with internal centering — Dimensions, tolerances and verification. Ruland disc couplings are manufactured in clamp or set screw style, with or without keyways, in bores sizes from 1/8” to 1-1/4” and. Keyways Index. 3 mm, but the shaft had a keyway width value of 9. The stress concentrations at the keyway end are most severe for the profile keyway, so with respect to fatigue the sled-runner is the best design. Depth at forward end. Reference 'Machinery's Handbook'. Shaft keyways and keys are used to transmit torque from shafts to mechanical transmission elements such as gears, and pulleys, using a keyed joint. Precision machined, non-marring, easy to adjust, with high clamping power. Width. Shaft (Arbor) Keyway Dimension Size Data -. 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. To use a key as a sacrificial part, choose a softer key that will shear off. Keyway dimensionsMetric key keyway dimensions per iso/rtt3 js9 width Inch keyway chart ansi agma shaft key width b4 dimensions diameter nominal reference motor electricKeys keyway metric standard keyways sizes engineering shaft key parallel square fit fits mechanical data rectangular british limits figure. Drive shaft Design, key and Keyways. The slot is defined as a keyway or a. 2. Flat Key Square Key Woodruff Key . Only informative sections of standards are publicly available. Choose from our selection of keyway stock, including machine key stock, rounded machine keys, and more. 2 0. The key is inserted inside the keyway parallel to the axis of the rotation. The commonKeyed Shafting 1045 - Key Shaft. Recommended uniform relationship between shaft diameter and key sizes for parallel and taper keys. Overall length 5’’. It also gives the relationship to be observed between the diameter of the shaft and the section of the key for. Keyway depth is something like 2/3 to 1/1 of width. Shaft Diameter. Clean and degrease the shaft. It also gives the relation to be observed between the diameter of the shaft and the section of the key. 251 +0. Referencing Figure 1, the keyway dimension is W x T1. 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. This is a +/- band clearance; the value of the tolerance is equally oversized or undersized. 5000 2. Clean delicate surfaces inside tubes, pipes, and holes. Check Details. 3). e = 1-0. New keyless locking devices offer an alternative for challenging motion applicationsOur 5/8" shaft with keyway will serve your assembly well. Bore Diameter: 1. 3mm 3. Inc. 14 mm. This key stock is stepped to match repaired keyways in shafts or gears. The advantage of the Js9 tolerance is that the key can be Keys shaft rectangular types key chart hub designs tapered machine selection5/8" od keyed shafting with a 3/16" full keyway Metric key keyway dimensions per iso/rtt3 js9 widthMetric key keyway dimensions. This key stock is undersized, so keys will fit slightly more loosely than standard keys and are best for inconsistent keyways. Shaft Dia. 5 3. Referencing Figure 1, the keyway dimension is W x T1. Key and keyway dimensions (control in motion) Keyway shaft coupling hole service couplings modification additional motion control tapered parallel Keyway chart. Whitney key and of the corresponding keyways in shaft and hub. Here we can calculate rigid connections, namely the pinned, keyed, splined and flanged ones. Keyway Bore (inches) Reference Height (d) 1. Because this key stock is slightly larger than standard key stock, keys will fit tightly in worn keyways. 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. 25 6- 30 2 +0. The advantage of the Js9 tolerance is that the key can beKeys shaft rectangular types key chart hub designs tapered machine selection5/8" od keyed shafting with a 3/16" full keyway Metric key keyway dimensions per iso/rtt3 js9 widthMetric key keyway dimensions. Where can I obtain a copy of the metric standards?. A key is a machine element that is used to join a rotating machine element to a shaft. 1. Partially Keyed Rotary Shafts. AUTOMATION & IIOT. A key prevents a relative rotation between the two parts, and may enable torque transmission to occur. Partially Keyed Rotary Shafts. 4235 : PART 1 : 1972 Imperial – Rectangular B. The standard keyway depth in the shaft is 1/2 the keystock size. 219(c)(4)(i), a projecting shaft end protruding more than one-half the diameter of the shaft must be guarded by non-rotating caps or safety sleeves. A list of standard keyway and corresponding key sizes for English shafts are listed below in Table 1. Woodruff keys work well near shaft shoulders and on tapered shafts. The essential data for this standard have been extracted from ISO Recommendations R 7731) and R 7742). 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. In stock and ready to ship. Shafts with keyways can catch clothing easily. Standard Keyway Size Chart. Referencing Figure 1, the keyway dimension is W x T 1. 120. 18 1. To view the full content, you will. Re-design the shaft shown below to be a uniform,Keyway chart Shaft standard key sizes rectangular gates keys diameters most. ). To view the full content, you will. Keyway Chart. In this paper, we perform the stress. from the split. 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. Many keyways are milled directly into a shaft or broached into the corresponding bored holes. imperial (pre-war) keyways diameter key shaft hub over incl w h width tol. 1 . Finished Striaght bores for standard AGMA Class 1 Clearance fit. 018 0RoyMech Resources Keyways BS 46 :1958 Parallel Keys and Keyway Dimensions These Pages include various standards.