Woodruff Key Assortments. Use the keyways with machine keys to transmit torque to gears, sprockets, and other keyed components. 5020 2. Rectangular-faced keys are used for larger shaft diameters and square keys are used for shafts smaller than 6. To confirm the status of any standard, identify the replacement standard if it is obsolete and/or purchase the standard please use. The invention is directed to an adaptor device suitable for use with a measuring apparatus to determine the centrality to the centerline of a Woodruff keyway in a shaft. 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. 2500 0. 1 to 114. 024 +0. 004, -. com. When selecting a keyway tolerance, there are two common selec-tions in the metric system. The key length should be less than about 1. keyways in the shaft members than to keyways in coupling hub bores. Shaft with Two Keyways Torque Applied Deformation and Stress Equations and Calculator. Shaft keyways and keys are used to transmit torque from shafts to mechanical transmission elements such as gears, and pulleys, using a keyed joint. ANSI Woodruff Keys. (i. This is a +/- band clearance; the value of the tolerance is equally oversized or undersized. 1 “Keys and Keyseats”. Although similar in principle to BS 46-1, for inch. 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 121) Unless specified by the customer: 2) Actual shaft fit will vary depending on - Series S couplings supplied with actual shaft diameters. Mm Shaft Diameter Groove dimensions for woodruff keys DIN 6888. Title of Legally Binding Document: Parallel Keys and Keyways Number of Amendments: 2 Equivalence: Superceding: IS 2710 Superceded by: LEGALLY BINDING DOCUMENT Step Out From the Old to the New--Jawaharlal Nehru Invent a new India using knowledge.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 shaft key installation requires a keyway on the hub and it does not require any keyway on the shaft. 1890 0. These keys have a tapered body that wedges in to the keyway for a more secure fit than standard machine keys. 1) The length I is a function of the design. Metric – Rectangular B. 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. 000 / +. Title: Microsoft PowerPoint - 01_ShaftThe shaft and spinning machine component must have a keyway and a keyseat, which are slots and pockets where the key fits, for a key to work. Shafts with keyways can catch clothing easily. Tolerance each on T1 and T2 is -. Check Details. 030: 0. 6 1. There are generally two keys we place between the shaft and hub as a tangency. If using a set screw to secure a pulley etc to a shaft you should use two spaced at 45 degrees apart. The shaft key is a machined element used for connecting the transmission shaft to rotating parts like gear. pdf. 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. l b h h 1Woodruff keys work well near shaft shoulders, where a standard open keyway would create too much stress. In the English system, it is standard practice to dimension keyways. Use the set screw to further secure the key. 2 mm, but the shaft had a keyway. S. This is a +/- band clearance; the value of the tolerance is equally oversized or undersized. Max. 18 1. pdf Gates belts, hoses, and applications: standard & non-standard. the depth of a keyway is an important taken every Shaft keyway depth calculatorKeyway misumi. xls Author: paul Created Date:Full Length Pre-Keyed Shafting. This specification includes index tolerances for multiple keyways. Stocked in: Steel; Stainless Steel; Specifications. The first is Js9. b 1 – width of keyway for the shaft b 2 – width of keyway for the hub t 1 – height of keyway for the shaft t 2 – height of keyway for the hub d – shaft diameter r – radius of curvature Table 3 – Dimension of tapered keys, mm. The hub keyway is dimensioned by its width and depth on the shaft – keyway sides. 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. Machining a keyway into a shaft is not inexpensive, nor is the equipment required to do so, though these costs are often unknown or overlooked. 360 Minimum 2. 4 3 3 11 12 4 1. 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. Manufacturing will be based upon DIN 6885 - T1. International Standard IS0 3912 was developed by Technical Committee ISO/TC 14, Shafts for machinery and accessories, and was circulated to the member. 4235 : PART 1 : 1972 Shaft key selection is crucial in avoiding premature failure on keyed joints. The design of the key joint consists of a shaft, hub, and key as shown below fig. 000 Over 1" +0. 3mm 2. B +0. 002 inch for keyseat length up to and including 4 inches; 0. 1. Key Stock , or bright steel, is a general term for a stock of square or rectangular bars 12 inches or longer in length from which machine keys are produced. Install them in keyways to transmit torque from shafts to gears and other components. 004, then the shaft keyway should be 0. Interference Fit Bore Tol. What does H8 tolerance mean? H8 (hole) tolerance range = +0. 4 9. 120. Dimensions: Shaft Diameter (A): 2" Keyway Width (B): 1/2" Keyway Depth (C): 1/4" Shaft Material: 1018 Steel; Phone: (407) 347-3519 Email: [email protected] using a key it should firstly be fitted in the shaft Keyway. Combine gears with different numbers of teeth to change speed and torque in your assembly. The keys are square or rectangular. It is ideal for overhung or unsupported shafts and is an excellent way to attach items such as mixer paddles and shaft Bore Diameter 1: 1. Because this key stock is slightly larger than standard key stock, keys will fit tightly in worn keyways. AUTOMATION & IIOT. Total Height (X) = Depth (Y) = Return to broaching : 2388 State Route 726 Eaton, Ohio 45320 (937) 456-2232 Fax (937) 456-2282 [email protected] to 3. Lecture1: Design of Shaft 26. That's also a condensed version. - If a part is 6 inches thick, the Wire-cut EDM machine will be able to cut two inches deep per hour. Potential clearance will be between +0. Same deal if using a pulley/shaft/sprocket with a taper lock hub. The bottom portion of the Woodruff key fits into the circular keyway in the shaft. Easily calculate the values required to cut keyseats and keyways. Inc. Machines shaft’s standard sizes are up to 25 mm with 5 mm step. KeyWay /Key Dimensions. Metric module, side fit. . Keyway/slot on shaft Keyway/slot on shaft pedrof (Mechanical) (OP) 20 May 14 13:03. 3). The shaft is supported on bearings and it rotates a set of gears orshown in Fig. 28. w = Width of the keyway, d = Diameter of shaft, and h = Depth of keyway =Thickness of key (t )/2Applied shaft diameter d Key size Keyway size; b h c or r Standard size of b1 and b2 b1 tolerance （H8） b2 tolerance （F7） r1 and r2 t1 t2; Standard size Tolerance（p7） Standard size Tolerance （h9） Standard size Tolerance Standard size Tolerance; 4×4: 10 or more and 13 or below: 4 +0. Straight-sided splines for cylindrical shafts with internal centering — Dimensions, tolerances and verification. Keyway depth is something like 2/3 to 1/1 of width. Steel Clamp-Type Shaft Couplings with Keyways. comShaft end diameter 180mm. Rigid shaft couplings are available with or without keyways in one- and two-piece and set screw designs. 4mm 1mm 1. The keyway in the hub is made in the usual manner. Transmission shaft; Standard size of shaft – Step sizes. 19-1997. A capital letter refers to the hole size and lower-case letter refers to the shaft size. ANSI/AGMA 9002-C14. Standard Keyways: (Used on all of our shafting) “Plain” Shafting available. ). 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. 94 inch. Standard keyway dimensionsKeyway chart Keyshaft keyed shaft, diameter 1 7/16 in, keyway 3/8 in x 3/16 inKeyway slot key shaft keyways. Read more on how keys and keyways work and what types are available – Keys and Keyways. DIN-Keys & Keyways to ISO Diameter d in accordance to DIN 6885/1 in accordance to DIN 6885/3 above to Width b 1) Depth h Shaft Keyway Depth t₁ Hub Keyway Depth d = t₂ Width b 2) Depth h Shaft Keyway Depth t₁ Hub Keyway Depth d = t₂ mm mm mm mm mm mm mm. the overhang distance at the nut end so the prop tightens on the taper. Set screws and pins can also work as an alternative to the keyed joint. A list of standard keyway and corresponding key sizes for English shafts are listed below in Table 1. D,d Depth. rush job because a. These shafts have keyways only on the ends, leaving a plain shaft in the center. The length of the coupling hub keyway is 4 inches long and it is also 3/8″ deep. O. n Non-standard bores available – consult Lovejoy Engineering. Check Details. a) PSfrag replacements b) Figure 1: The two standard keyway ends for parallel keys. Two PDFs with useful engineering data on keyway sizes and engineering limits and fits, just download. All dimensions are in inches. The second is a P9 tolerance. Keyway misumiKey and keyway dimensions (control in motion) Keyway sizing chartMetric key keyway dimensions. Woodruff Key Assortments. 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. 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. finished steel stock for parallel keys. A former industry standard, 14½° pressure angle gears are often found on older machinery. (a) end-milled or profile keyway; (b) sled-runner keyway Fig. Choose from our selection of shaft keys, including rounded machine keys, machine keys, and more. 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. 1875 0. 1/4’’ keyways. 99. 8 4 4 Shaft (Arbor) Keyway Dimension Size Data - ANSI/ASME B94. 3mm. --keyway dimensions Keyway sizing chartDimensions standard keyseat keyway shaft shafts diameter nominal. 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. S. Design of Square Key and Keyway (Wood Ruff) Stress, Shear and Torque. 050 mm to −0. ISO/R 773:1969. any shaft from 1. 2. The keyway in the shaft is in the form Of a semicircular recess with the same Fig. A further disadvantage to shaft keys in a world of increasingly compact motion components is the reduction in the torque density of the shaft and its respective locking element. The common specification dimension, Key Size, is highlighted. Material Assignment. New keyless locking devices offer an alternative for challenging motion applicationsOur 5/8" shaft with keyway will serve your assembly well. We would like to show you a description here but the site won’t allow us. The flat key is the standard part, its two sides are the working surface, to transmit the torque. Nearly every shaft diameter has a corresponding standard keyway width and depth – this calculator helps you find it. e = 1-0. Taper keys with or without gib head and their corresponding keyways. 3 h 1 2t t h d c c h b 6. 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. Parallel keysKeyway shaft roymech tolerance Shaft standard key sizes rectangular gates keys diameters most non std readily availableParallel metric keys and keyway dimensions. BS 46 Part 1 : 1958 Square Keys and keyway Dimensions. Standard keyseated shafting,The hub keyway is dimensioned by its width and depth on the shaft – keyway sides. 250"+. The end of a keyway has two standard designs, shown in Fig. Install them in keyways to transmit torque from shafts to gears and other components. Choose from our selection of parallel keys, including rounded machine keys, machine keys, and more. 25 mm to 60 mm – 5 mm step. by Crystal Bemis on August 1, 2022. 1910. 3/16" keyway is standard on less than 1" down to some dim I don't recall right now, where it steps down to a 1/8" key. Orthwein [4] suggested a designStandard keyways provide added torque capacity and fixed shaft phasing. COMPACT & POWERFULThese explain the sizes and dimensions required by different keyway families according to different manufacturers, and the charts are used in the making of keyways to ensure correct sizing. 5020 2. 2. --keyway dimensions Keyway sizing chartDimensions standard keyseat keyway shaft shafts diameter nominal. 002 -0. The keyways are dimensioned for use with a stock key class 2 in order to get a tight fit combination. Welcome Location Transmission Bushes Pulleys Belts Vector Belts Roller Chain & Sprockets. Shaft Keyseats/Hub Keyways Standard Keyseats/Keyways. 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 12AMERICAN NATIONAL STANDARD Bores and Keyways for Flexible Couplings (Inch Series) This is a preview of "ANSI/AGMA 9002-B04". Spur gears produce no thrust forces, however, be sure to fasten them firmly with stepped shafts or collars to prevent shifting toward the shaft. Check out our shaft keyway size chart as well to help you identify your needs. Height. Keyways Index Keys and keyway Dimensions. Standard Keyway Size X/S Shaft/Bore Diameter. The standard dimensioning of the keyway is like above. COPYRIGHT 2003; American Society of Mechanical Engineers Document provided by IHS Licensee=Cummins. HOUR . 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. 1 mm. 3 N) When I calculate with this data I reach a safety factor of 1,08. A key prevents a relative rotation between the two parts, and may enable torque transmission to occur. The height of metric keys decreases by 1 mm for every 100 mm of length. and robotics. Keyway halliteGuide for shaft keyway design, shaft key size calculation and selection Keys standard metric keyways mechanicalMetric key keyway dimensions. The following tables show standard dimensions for keys and their grooves. 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. 260". I've selected a shear strength = S s = 200 MPa, and a compressive strength = S c = 130 MPa. Standard Metric Keys and Keyway Bores. This specification includes index tolerances for multiple keyways. They are also often used on tapered shafts. 000. So you have to determine the chordal height of the diameter for the width of the keyway. Depends on application and cost. 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. Choose from our selection of keyway stock, including machine key stock, rounded machine keys, and more. This Standard covers requirements for square and rectangular parallel keys and keyways intended for both alignment of shafts and hubs, and transmitting torque between shafts and hubs. W width. Mount the adapter to the workpiece shaft using a full key in the shaft keyway and fill the half-key void in the opposite side of the adapter with a half-key (see Figure 6-22 B). 3) Keyway fillet radius to be specified by customer. Old JIS (Class 2) Standards Unit [mm] Hole diameter b2 t2 Key size b×h; Standard size Tolerance(E9. 4375 1. 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. 14. TruKey® Shafting from Keystone is designed to provide the straightest, most accurate keyed shafting, in the industry. Referencing Figure 1, the keyway dimension is W x T 1. 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. Unit 2 design of shaft. Email: sales@usarollerchain. 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. 487 Minimum 2. G&G Manufacturing Company 4432 McKinley Street P. Shallow keyway depths must exceed 2/3 of the full keyway depth of the square keys shown above. S. Clearance Fit Bore Tol. Tapered Gib Keys. pdf Shaft Design for Problems 9-6, 9-9. Keyway width P9 tight fit (standard design) JS9 or N9 loose fit (standard design) Other tolerances / tolerance ranges must be specified separately and require a written agreement. it is also important to go with a well-accepted industry bore standard so the. 3 mm) in diameter with the standard bar clamp. The centuries-old industry standard shaft-to-hub mounting technique is the key and keyway. 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. Keys and keyways. To help, we’ve put together the following keyway cheat sheet for. These shafts have keyways only on the ends, leaving a plain shaft in the center. 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. 42000 KN/m2 for shafts with no allowance for keyways. 3/32. If a setscrew is required, drill and tap over keyway as shown in Figure 3. 6. Imperial systems use inches and feet, and these are the standard units. 4 Splines 9. Keyway Dimensions Key Dimensions The inch and metric dimensions here correspond to common values. I would specify location tolerances separately on the length of your first keyway, and on the width and length of your second keyway. 3 mm, but the shaft had a keyway width value of 9. As noted above, when selecting a keyway tolerance, there are two common selections in the metric system. Home; Metric Keyways Index page; Parallel Keys and keyway Dimensions; Parallel Keys and keyway Dimensions to BS 4235-1:1972 KeyWay & Key Dimensions. 020 0. Tapered Gib Keys. Box 12086 Omaha, NE 68112-2086 Along with keyway size tolerances and keyway depth sizes, some standards also provide information on the recommended key size and keyway depth as a function of shaft diameter. 4. Linear motion. Fit pulley with taper bush on shaft and locate in desired position. 5 inches (38. AUTOMATION & IIOT. Meaning the keyway in the hub has a rounded contour instead of a rectangular contour. TruKey® Shafting from Keystone is designed to provide the straightest, most accurate keyed shafting, in the industry. Most keyways in a shaft are half the height of the key plus . The Reverse, numbered, Primus, Everest, and Quad key. Keyway is not made for holes of less than 12 mm. 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. 1The tables below show the dimensions of a straight sided spline in accordance with BS 5686:1986, ISO 14-1982: Specification for straight-sided splines for cylindrical shafts: metric nominal dimensions, tolerances and gauging requirements. ) the shaft sizes are known and controlled. B. Because they're usually shorter than. 87 inch. Also, applications can be in two directions. 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. Metric key keyway dimensions per iso/r773. In reply to #10. Accu-Flange ™ mounting collars are machinable flange collars that feature a standard keyway with three through holes and three tapped holes and an integral clamp design and relief groove mechanism. The dirncnsions of tangential keys and keyways shall be as given in Table 7. If the enduser is using oversize plated keystock, then the properly centered keyway is more important. Pre-keyed shafting is an economic alternative to machining shafts yourself while saving time and labor expense. Partially Keyed Rotary Shafts. Woodruff Keys. --keyway dimensions Keyway sizing chartDimensions standard keyseat keyway shaft shafts diameter nominal. In stock and ready to ship. 1. Keyway shaft roymech. That combined amount of clearance forgives a few thousandths of off-centeredness to a shaft keyway. The main reason of failure of shaft and keyways in shaft-hub connection is the shear stress, so the focus is done on it. This standard presents inch dimensions, tolerances, and sizes for straight bores, tapered bores, single keys and keyways for unmounted industrial flexible couplings. constitute provisions of this Standard: PAES 305:2000, Keys and Keyways for Agricultural Machines 3 Application Spur gears are used to connect parallel shafts and have teeth formed in cylindrical blanks parallel to the shaft axis. width tol. Rectangular-faced keys are used for larger shaft diameters and square keys are used for shafts smaller than 6. 000 mm to +0. 000 / -0. Standard keyways provide added torque capacity and fixed shaft phasing. 5000 2. 19-1997 ; Keyway Stresses for Non-metallic Gears and Shafts Formulas and Calculator; Shaft (Arbor) Keyway Dimensionl Data - ANSI/ASME B94. So let’s discuss. These keys have a tapered body that wedges in to the keyway for a more secure fit than standard machine keys. The key prevents relative rotation between the two parts and may enable torque transmission. The gear can then be fitted onto the shaft and the keyway on the gear will fit over the key, inserted in the shaft. Keystock is available in both inch and metric sizes. To learn how your data will be used, please see our privacy notice. 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. We stock pre keyed shafting in many diameters, including metric diameters, with standard keyways. Metric Keyways Dimensions ISO/R773. Shaft Keyway Shear and Yield Strength Formulae and Calculator. Check Details. 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. 8mm 1. 19-1997; Design of Square Key and Keyway (Wood Ruff) Stress, Shear and Torque; Parallel Key. Many keyways are milled directly into a shaft or broached into the corresponding bored holes. It other words, the torsional strength of the shaft is reduced. 8mm 3. We can provide keyed shafts in any length up to 20 foot. The prole keyway is cut by an end-mile while the sled-runner keyway is cut by an ordinary milling cutter. Recommended ANSI Standard Keys and Keyseats Design per. clearance fit bores with set screws. 2-1967. 003, -. 88 Lecture1: Design of Shaft 33. Shaft Diameter / Standard Keyway. Shaft Arbor and Keyseat Dimensional Data American National Standard Keys and Keyways. Gates belts, hoses, and applications: standard & non-standard shaft keyKeyway shaft keyways metric bores mechanical wxh shapes Keyway chart shaft sizing. Regards Tyrone. Shaft Diameter: key : Keyway (Shaft : Keyway (Hub) Keyway radius: D: Width: Height : W: H. Since they fit more loosely than standard keys, these undersized keys are best for uneven keyways or when you need to disassemble parts frequently, such as during maintenance or prototyping. This specification includes index tolerances for multiple keyways. 5000 2. See ANSI/AGMA 9112--A04 for metric bores with metric keyways. Get In Touch. 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. KeyWay. Gib head keys. We also have an Imperial Keyway Calculator. 0mm metric, standardShaft standard key sizes rectangular gates keys diameters most non std readily available Chart keyway torqueKeyway metric key dimensions standard keyways keys bores shaft hub depth iso diameter engineering table edge width millimeters. 062 0. Partially Keyed Rotary Shafts. 5 3. Keyway dimension Reference; b h C l Basic dimen sion of b 1 and b 2 Sliding type Normal type Fastening type r 1 and r 2 Basic dimen sion of t 1 Basic dimen sion of t 2 Allow ance t 1 and t 2 Compliant shaft diameter d; Basic Dimen sion Allow ance (h9) Basic Dimen sion Allowance b 1 b 2 b 1 b 2 b 1 and b 2; Allow ance (H9) Allow ance (D10). A Shaft key is a piece of metal used to connect a rotating machine element to the shaft. A standard broached key-way is used in the mounted component. 38 2. Nominal Dia. A Keyway is a slot of some kind that is used to align the part on a shaft and prevent the part slipping as the shaft rotates. 089 mm. The code also applies a factor of 0. 1 Square Keyway Tolerances Minimum 2. 6. O. 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. Recommendations for key size, length and keyway depth as a function of shaft diameter are provided in ASME Standards B17. 000 +0. Locate keyways per Figure 6 and Table 8. C. It is a rotating member, in. 477 Maximum 2. b x h width x thck.