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. The keyways correspond to the ASME USAS B17. and bending for range of shaft diameters from 10 mm to 500 mm as per standard sizes. Easily calculate the values required to cut keyseats and keyways. 2 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. 002 -0. 5 Interference Fits Components can be attached to a shaft without a key or spline by using. 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. Nominal Bore Diameter Clearance Bore Interference Bore Keyway “T”-DIM +0. 024 +0. S. Cutting an internal keyway can be a challenging task, but with the right method and tools, it can be done with precision and efficiency. KEYSHAFT Keyed Shaft, Diameter 3/4 in, Keyway 3/16 in x 3/32 in. Woodruff Key Assortments. # 11. The standard dimensioning of the keyway is like above. 13. 2515 0. 1. MISUMI USA has all of your Universal Joints needs covered, with over 3. S. Keyway and Key Size Dimensions * Common dimension specification English Standard Keyway and Key Sizes Shaft Diameter (in) Keyway (in)* Key (in) From To Width (W) Depth (T 1) Width (W) Depth (T) 5/16 7/16 3/32 3/64 3/32 3/32 1/2 9/16 1/8 1/16 1/8 1/8 5/8 7/8 3/16 3/32 3/16 3/16 15/16 1-1/4 1/4 1/8 1/4 1/4 1-5/16 1-3/8 5/16 5/32 5/16 5/16 Standard Keyways: (Used on all of our shafting) “Plain” Shafting available on all Steel grades. Inspection methods for straight and tapered bores and. Woodruff keys work well near shaft shoulders, where a standard open keyway would create too much stress. S. Hub keyway depth is one-half the nominal height of the key and measured from the side corner. 18 1. This is why you remain in the best website to look the incredible ebook to have. KEYSHAFT Keyed Shaft, Diameter 3/4 in, Keyway 3/16 in x 3/32 in. 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. . Do not operate conveyors without covers. Key strength and steel analysis entering into the makeup of stock for keys is not within the. keyways in the shaft members than to keyways in coupling hub bores. Standard and metric keyway broachesTable aii-12. 025 mm and +0. Check how the old prop fits the taper shaft and the amount of draw - i. For use on standard hardened round shafts, Shaft Adapters are precision machined, non-marring, easy to adjust, with high clamping power. scope: This standard presents inch dimensions, tolerances, and sizes for straight bores, tapered bores, single keys and keyways for unmounted industrial flexible couplings. Metric External Table Chart Thread Designations Sizes M 1. For instance, if standard tolerancing on stainless keys is, say, 0. 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. The keyways are dimensioned for use with a stock key class 2 in order to get a tight fit combination. Technical Information Keysteel & Chalk Catalogue Keyway Standards – IMPERIAL 2. If using a set screw to secure a pulley etc to a shaft you should use two spaced at 45 degrees apart. 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. The first is Js9. ASME standard B17. Woodruff Keys. Unless otherwise specified, the shaft keyway is assumed to be standard. 125 0. 5. pdf. 3) of the diameter of the shaft, in which case the thickness of the key (T) becomes ?40 (0. 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. Standard Type: 20. Description: Designed for aligned shafts, the 1-Piece Clamp-Type Coupling makes two shafts function as one. The shaft is supported on bearings and it rotates a set of gears orshown in Fig. 18 1. It cannot be used as a feather. This technique is used for parts like a gear, hub or pulley. 08-0. Referencing Figure 1, the keyway dimension is W x T 1. Definition of shaft Standard shaft sizes Standard shaft materials Design of shaft based on strength 8. Contact. Use the middle of the shaft with bearings and other round-bore components. 01~50. Key length: 290mm. These keys have a tapered body that wedges in to the keyway for a more secure fit than standard machine keys. Email: sales@usarollerchain. TruKey® Shafting from Keystone is designed to provide the straightest, most accurate keyed shafting, in the industry. Partially Keyed Rotary Shafts. 4. Convert output drives from female to male. Related terms:. 8mm 3. WIDTH. Gib head keys. A capital letter refers to the hole size and lower-case letter refers to the shaft size. It helps to transmit torque. New keyless locking devices offer an alternative for challenging motion applicationsOur 5/8" shaft with keyway will serve your assembly well. The second is a P9 tolerance. The standard keyway depth in the shaft is 1/2 the keystock size. Choose from our selection of rectangle keys, including over 950 products in a wide range of styles and sizes. The key length should be less than about 1. What does H8 tolerance mean? H8 (hole) tolerance range = +0. 0mm to 26. Or clamp the machine to a flat surface, and you can cut motor mount slots. 3 1. ISO/TC 14. Standard keyways run full length. Keyway Width. 030: 0. Drive shaft Design, key and Keyways. 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. The second is a P9 tolerance. 2 MATHEMATICAL FORMULATION AND FE The torsional moment is given by M t~GJ w l ð1Þ Fig. The hub keyway is dimensioned by its width and depth on the shaft – keyway sides. 1875 0. 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. It is noted that this is equivalent to a stress concentration. The hollow saddle key is a taper key that fits in a keyway in the hub. These keys have a rounded shape that makes them easy to remove when parts need to be taken apart frequently, such as for maintenance or prototyping. 5000 2. Reactions: graham-xrf. 8mm 1. 1. Whereas the P9 tolerance is a press fit tolerance. Over To (Incl. 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. Shaft Keys 101 | Machine Design. Machine keys are often the same material as the shaft and other components with which they are used. 5 to 4. The 22 x 14 suggestion makes a lot of sense, unless prevented by thin-walled hubs and/or shaft size issues. 6 %âãÏÓ 105548 0 obj >stream hÞ¼“moÛ6 Ç?A¿ _¦ ‚¿ ?Å@aÀŽë¦[šu±ÛdMó‚–N ŠRHÚ ûéw¤ ¯ ¶,y3H" ÷@ ¿ ô’þH$bÐK ‰HÓ4J©HÇã. 6. 000 / -0. If the enduser is using oversize plated keystock, then the properly centered keyway is more important. All keyed Shafting is guaranteed to fit on a bearing, and the ends can. REFERENCE DEPTH. 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. Posted on February 1, 2023 in Industry Formulas. Open the catalog to page 11The development of these relations can be found in standard texts. Just enter the size of the key and shaft, then click "Calculate". Parallel keysKeyway shaft roymech tolerance Shaft standard key sizes rectangular gates keys diameters most non std readily availableParallel metric keys and keyway dimensions. Choose from our selection of shaft keyways, including split-tapered bushings,. Special keyway configurations. Cutting an internal keyway can be a challenging task, but with the right method and tools, it can be done with precision and efficiency. Page 1 of 3. Functional key length: 267,5mm (= length - (0,5x width)) Shaft material S355J2G3 (St52. 5020 2. Shallow keyway depths must exceed 2/3 of the full keyway depth of the square keys shown above. ANSI/AGMA 9002-C14. BS 5686:1986, ISO 14-1982: Specification for straight-sided splines for cylindrical shafts: metric nominal dimensions, tolerances and gauging requirements. Keyway Connection. Saddle keys The saddle keys are of the following two types : 1. Potential clearance will be between +0. 010 0. --keyway dimensions Keyway sizing chartDimensions standard keyseat keyway shaft shafts diameter nominal. sometimes referred to as a keyway. Standard Metric Keys Keyways for Metric Bores with One Key Keyway Cutter Hole Keyway Dimensional Data for MIlling Centers and Arbors - ANSI/ASME B94. Meaning the keyway in the hub has a rounded contour instead of a rectangular contour. To help, we’ve put together the following keyway cheat sheet for. In today's video I show you everything you need to know about making Splined shafts and adding keyways . The one edge of the shaft is completely inside the shaft side. Use the keyways with machine keys to transmit torque to gears, sprockets, and other keyed components. Keyway Cutter Hole Keyway Dimensional Data for MIlling Centers and Arbors - ANSI/ASME B94. 5 mm. Shaft Diameter. n Non-standard bores available – consult Lovejoy Engineering. 062 0. He explains that for specifying keyways, it must be noted that there are very well established standards for dimensions, which can be found in Machinery’s Handbook, or ANSI B17. Finished Striaght bores for standard AGMA Class 1 Clearance fit. keyways /keys dimension in accordance with BS 4235-1:1972: Specification for metric keys and keyways - Parallel and taper keys. 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. 1) The length I is a function of the design. Schlage uses CNC milling complex keyway shapes to mechanically prevent some non-OEM keys from entering or operating a lock. Manufacturing will be based upon DIN 6885 - T1. 477 Maximum 2. 1) Unless specified by the customer: 2) Actual shaft fit will vary depending on - Series S couplings supplied with actual shaft diameters. 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. Referencing Figure 1, the keyway dimension is W x T 1. If a conveyor must run without a cover, use an expanded. . Note: The code "SR" on the included key. Flat saddle key, and 2. As bushing bores approach the maximum recommended diameters, keyway depths are reduced in order to extend maximum bores as much as. Because this key stock is slightly larger than standard key stock, keys will fit tightly in worn keyways. The following tables show standard dimensions for keys and their grooves. Rectangular-faced keys are used for larger shaft diameters and square keys are used for shafts smaller than 6. 004-0. 180. The hub keyway is dimensioned by its width and depth on the shaft – keyway sides. It is true that these ANSI standards define different products than ISO specs. Metric key keyway dimensions per iso/r773. F. Cutting a standard keyseat in a shaft and in a gear or sprocket will give a nice tap fit for the key. Machines shaft’s standard sizes are up to 25 mm with 5 mm step. Steel key stock is an economical choice with good strength. The gib head makes them easy to remove when parts need to be taken apart frequently, such as for maintenance or prototyping. ). 5. Keyway shaft roymech tolerance Straight-sided splines for cylindrical shafts with internal centering — Dimensions, tolerances and verification. They’re also available in metric. Key and keyway dimensions (control in motion) Keyway shaft coupling hole service couplings modification additional motion control tapered parallel Keyway chart Standard shaft sizes key bushi. The key prevents relative rotation between the. Shaft and hub keyway dimensionsKeyways shaft keyway coupling shafts drive apart rotate two installing should asked driver question common am if when. Keyseats and Keyways. Key height: 25mm. These shafts have keyways only on the ends, leaving a plain shaft in the center. 000 so that there is no. The strength in torsion, of shafts made of ductile materials are usually calculated on the basis of the maximum shear theory. Height. 1265 0. Get In Touch. 2 - Woodruff Keys and Keyways; B18. For more information or for pricing and availability on Keystock please contact us and we will be happy to assist you. Keys and keyways. o 65. 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. 19-1997; Design of Square Key and Keyway (Wood Ruff) Stress, Shear and Torque; Parallel Key and Taper Keys. These keys have a tapered body that wedges in to the keyway for a more secure fit than standard machine keys. 2. 000 Min. The keyway would be located 180 deg. Check Details. A former industry standard, 14½° pressure angle gears are often found on older machinery. 5 3. 6 in. The shaft's diameters that can be used are 3-inch, 4-inch and 4 5/16-inches. Keyways Index KeyWay & Key Dimensions. (5). Shaft /Hub/keyway material (BS EN 10083 C45 normalised. 424 Minimum 2. Direct interchange with Spicer 1000 series. 3). Coupling in mechanical engineering is a device used to connect two shafts together at their ends for the purpose of transmitting power or torque. 3 6. d w +0. 1 The two standard keyway ends for parallel keys. 6. depth tol. The key can be withdrawn at will to disengage the mating components. B +0. Depends on application and cost. 3125 0. A shaft key prevents a relative rotation between the two parts, and may enable torque transmission to occur. 5 - 4. Interference Fit Bore Tol. Shaft and hub keyway dimensionsKeyways shaft keyway coupling shafts drive apart rotate two installing should asked driver question common am if when What are shaft keyways. Keys are made of steel. Choose from our selection of keyway stock, including machine key stock, rounded machine keys, and more. Standard Metric Keys Keyways for Metric Bores with One Key. Top. Install them in keyways to transmit torque from shafts to gears and other components. This standard covers the size, type and tolerances of parallel and taper keys and keyseats, and their relationship to shaft diameters and bore diameters. 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. Standard keyway dimensionsKeyway chart Keyshaft keyed shaft, diameter 1 7/16 in, keyway 3/8 in x 3/16 inKeyway slot key shaft. Imperial systems use inches and feet, and these are the standard units. 56000 KN/m2 for the shafts with allowance provided for keyways. Lots of times it's a pin or a bolt . 1890 0. ANSI B18. 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. This standard presents inch dimensions, tolerances, and sizes for straight bores, tapered bores, single keys and keyways for unmounted industrial flexible couplings. A Key goes into the Keyway to lock things up. Key. 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. Choose from our selection of parallel keys, including rounded machine keys, machine keys, and more. 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. 050 mm to −0. Choose from our selection of 1 15/16" shafts in a wide range of styles and sizes. The end of a keyway has two standard designs, shown in Figure 1. 16-0. A former industry standard, 14½° pressure angle gears are often found on older machinery. 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. 1. Many keyways are milled directly into a shaft or broached into the corresponding bored holes. Gear Products and Suppliers | Gear Knowledge Menu. The slot is provided in the rotating shaft or in the hub or both of them to insert the key known as keyways. The length of the coupling hub keyway is 4 inches long and it is also 3/8″ deep. A rounded bottom allows these keys to rock in their seat to relieve stress on the shaft caused by vibration or misalignment. DIN 6885/1 :- Definition. 9-11, and 9-12 Figure 9. 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. If the enduser is using oversize plated keystock, then the properly centered keyway is more important. 8M high quality products and 80 sextillion configurable parts available with fast shipping and low pricing. Tony, a 1/4" keyway is standard on 1" diameters. 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. Metric standard parallel keyway and key sizes shaft diameter (mm) keyway (mm) key (mm)*. A key is a machine element that is used to join a rotating machine element to a shaft. Hollow saddle keys. Check Details. Drive Type Fastenings without Taper Action; Parallel Keys, Keyways, Deep Pattern. Nominal Dia. 38 1958. 3 - Square and Rectangular Keys and Keyways: Width Tolerances and Deviations Greater Than Basic Size. The depth of the keyway weakens the shaft. Choose from our selection of keyway shafts, including keyed rotary. 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. any shaft from 1. Unless otherwise specified, the shaft keyway is assumed to be standard. 5/16 to 7/16. Provided by TNN Engineering. Phone: (407) 347-3519. This is an undersized clearance. and robotics. Nominal Shaft Diameter Nominal Key Size Normal Keyseat Depth Types. Shaft Arbor and Keyseat Dimensional Data American National Standard Keys and Keyways; Standard Metric Keys Keyways for Metric Bores with One Key; Keyway Cutter Hole Keyway Dimensional Data for MIlling Centers and Arbors - ANSI/ASME B94. 1 . While a designer is free to specify any. 000 / +0. 0:00 Intro00:10 Making spline part4:12 Adding shafts5. Title: Tables. 3) Keyway fillet radius to be specified by customer. Keyway Dimensions Key Dimensions The inch and metric dimensions here correspond to common values. 5 times the shaft diameter to ensure a good load distribution over the entire key length when the shaft loaded in torsion. The Stafford Manufacturing Corp. 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. Machine Key Comprehensive Guide. A rounded bottom allows these keys to rock in their seat to relieve stress on the shaft caused by vibration or misalignment. When flywheel extends into pit or is within 12 inches of floor, a standard toeboard shall also be provided; (iii) When the upper rim of flywheel protrudes through a working floor,. Shaft Keyseats/Hub Keyways Standard Keyseats/Keyways. Technical Data: rated torque from 10 - 800 Nm shaft diameter from 5 - 72 mm. 19-1997 ; Keyway Stresses for Non-metallic Gears and Shafts Formulas and Calculator; Shaft (Arbor) Keyway Dimensionl Data - ANSI/ASME B94. Install them in keyways to transmit torque from shafts to gears and other components. Stocked in: Steel; Stainless Steel; Specifications. O. The projecting part of Woodruff key fits in the keyway in the hub. To confirm the status of any standard, identify the replacement standard if it is obsolete and/or purchase the standard please use. Referencing Figure 1, the keyway dimension is W x T1. It's a way of using the standard to control a manufacturing process with a drawing. At steady-state speed, the gear transmits a radial load of 230 lbf and a tangential load of 633 lbf at a pitch diameter of 8 in. 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. 4235 : PART 1 : 1972 Imperial – Rectangular B. Shaft (Arbor) Keyway Dimension Size Data - ANSI/ASME. 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. The key and key seat cross section are ISO standardized. 219 (c) (5) (i) The basement, tower, or room occupied by transmission equipment is locked against unauthorized entrance. The commonKeyed Shafting 1045 - Key Shaft. This key stock is undersized, so keys will fit slightly more loosely than standard keys and are best for inconsistent keyways. We can provide keyed shafts in any length up to 20 foot. It also gives the relation to be observed between the diameter of the shaft and the section of the key. Also, applications can be in two directions. com. 3125 0. Keyway (Shaft. Shaft (Arbor) Keyway Dimension Size Data -. 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. The keyless POWER-LOCK connection is durable and not affected by torsional load reversal or impact, which can damage keys and keyway connections. 7/11Ansi B17 1 Standard Keyway Dimensions LowellcorpAs this ansi b17 1 standard keyway dimensions lowellcorp, it ends up living thing one of the favored ebook ansi b17 1 standard keyway dimensions lowellcorp collections that we have. Install them in keyways to transmit torque from shafts to gears and other components. Variations of machine keys include parallel keys, tapered keys, Woodruff keys, hi-pro keys, and non-rok keys. D (Ø) Overall Length (mm) Body Material. ISO/R 774:1969. 1/4’’ keyways. Reference The nominal sizes given in ( ) do not conform to the relevant international standard and must not be used in new design. 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. Variations of machine keys include parallel keys, tapered keys, Woodruff keys, hi-pro keys, and non-rok keys. The bottom portion of the Woodruff key fits into the circular keyway in the shaft. Keyway Radius “R”† Over Thru Nominal Min Max Min Max Min Max Hub “W” Over Thru Min Max Min Max Keyways will be furnished with P9 width tolerance only upon request. 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. ing can be used for different shaft sizes They are easy to prepare, quick to install and provide a low-cost solution But they are also surprisingly ineffective When keyways are cut into components and shafts, they reduce the cross section (fig 2), and conse-quently the strength of the machined parts Keys and keyways may also require a clearance. Normally with an open ended keyway people drill and tap on the bottom joint line of the shaft/keyway and lock the two together with a grub screw. 1910. 002 inch for keyseat length up to and including 4 inches; 0. 6 6. 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. 010. 487 Minimum 2. 8 mm. Parallel keys. 010". Because they're usually shorter than. 3. Straight keys, with a square or rectangular cross section, are the most common type of key. These shafts have keyways only on the ends, leaving a plain shaft in the center. Tube Cleaners. 1) has a stress concentration factor of 3 [42]. In general, also, we use this type in low-speed applications. The KM3000 Portable Key Mill is a simple, rugged, dependable machine tool designed to cut keyways in shafts without costly set-up time or dismantling of the work piece. 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. 5020 2. 1 Shaft Shaft is a common and important machine element. This shaft key installation requires a keyway on the hub and it does not require any keyway on the shaft. Do not chamfer setscrew hole, deburr with a file. 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. The second is a P9 tolerance. As noted in it "This is a condensation of the standards on motors included in NEMA Standards Publication Motors and Generators, MG 1-2006. 4 9. 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. In stock and ready to ship. metric bores with metric keyways, or shaft keyseat tolerances. D,d Depth. The main reason of failure of shaft and keyways in shaft-hub connection is the shear stress, so the focus is done on it. Another name for a Keyway is a. Specifications Met. 25 6- 30 2 +0. When selecting a keyway tolerance, there are two common selec-tions in the metric system. 1 . 4. Shafts with keyways can catch clothing easily. Keyway depth is something like 2/3 to 1/1 of width. D. The common specification dimension, Key Size, is highlighted. 125. A method is included for the photo elastic. 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. Maximum recommended torque at continued duty 1000 RPM: 800 inch lbs. Woodruff Key Assortments. 062 0. Choose from our selection of shaft keys, including rounded machine keys, machine keys, and more. The profile of a straight sided spline is defined by. R R Cutter Run-out. Keyway Depth (Normally 1/2 of width) Total Height (X) = Depth (Y) = Metric Calculator Bore Size.