Keyway shaft chart pdf. KeyWay /Key Dimensions.

Keyway shaft chart pdf 322 0. 4235: PART 1: 1972 standard, and one for The fundamental advantage of woodruff keys is that they do not require machining at the shaft shoulders, which reduces stress concentrations at the shaft's end. Keyed Shaft The limiting pressure point of a keyed shaft is the keyway side of the male shaft, provided the proper key material is selected. C For maximum protection, the coupling and all components should be stored in the original packaging. 5000 0. A list of standard keyway and corresponding key sizes for English shafts are listed below in Table 1. Circular shafts with rectangular and circular keyways, external splines, and milled flats along with rectangular and X-shaped torsion bars are presented. Moore. When the key is of an appropriate size relative to the torque to be transmitted, a shaft thicker than the applicable shaft diameter may be used. 2(w/d)-1. Nominal Nominal Shaft Bore Dia. Standard inch keyway dimensions chart Shaft key standard sizes stock rectangular gates keys std diameters most non readily available Standard keyway dimensions. 093 / . Dimensions. A rectangular sunk key is shown in Fig. 376 . The design is often regulated by standards that are almost half a century old, and most results reported in the literature are based on experimental photoelastic analysis. Motor Technology Ltd. 1 ; Shaft Arbor and Keyseat Dimensional Data ANSI B94. Created Date: 12/21/2015 9:34:28 AM Keyways will be furnished per ISO/R773 and Js9 width tolerance unless otherwise specified. σ0 = F/A, where A = πd2/4. ANSI B17. σ0 = Mc/I In October’s column, I mentioned the typical tolerance for keyways. It also determined the range or size of the tolerance zone. max. A computer program was keyways in shaft-hub connection is the shear stress, so the focus is done on it. Shaft with Two Keyways Torque Applied Deformation and Stress Equations and Calculator. 10 Test Specimen Design for Maximum K t for a Given r D or r H 76 References 76 Charts 81 3 SHOULDER FILLETS 135 3. 3 -m 1170 13m 100 190 . 3. e = 1-0. The deviation determines if the feature will be oversized, undersized or allow for a symmetrical deviation. Keys and keyways are used to transfer torque from shafts to holes or vise versa. 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 IS 2293—1974: Specification for Gib-head key and keyways. docx), PDF File (. UNI 6604/ Keyways d b D10 hole b H9 shafts h t2 t4 from 6 to 8 2 2 2 1 +0. • Cost savings because there is no keyway to machine. For example: a keyway. Over Width, W Height, H Size, bxh 1 Keyway Chart - Free download as Word Doc (. At steady-state speed, the gear transmits a radial load of 230lbf and a tangential load of 633lbf at a pitch diameter of 8in. 0284, email us, or fill out and submit our online request for quote form. 19-1997 As noted above, when selecting a keyway tolerance, there are two common selections in the metric system. Note: Set screws are also available. Gears or pulleys are commonly keyed to shafts, for example, by square. We would like to show you a description here but the site won’t allow us. Inc. HOUR . The first provides the charts for the fundamental deviations (G, j, etc. 032 * 0. Website design by Krann Ltd, Poynton, Cheshire The end of a keyway has two standard designs, shown in Fig. But the keyway in the hub is machined with a uniform depth like in other keys. 100-2005 standard. 3 DIN 6885/ UNI 6604 Keyways. The maximum allowable torque a keyed shaft can transmit is: T = πdLh/2 L, the effective length of the keyway = 25 mm d, the shaft diameter = 19 mm for the keyed shaft h, the keyway depth = 3 mm The thickness of the key is uniform. 1 Refer to the following chart (Table-1) to ensure all the ordered parts were included with the shipment. 1 Prior to removing any existing coupling, establish and record the Distance Between Shaft Ends (BSE) between the driver Shaft Keyway Shear and Yield Strength Requirement: Design tip for shaft and keyways: In general, shafting up to 3 inches in diameter is almost always made from cold-rolled steel. Scanned with CamScanner 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. 0 1. Engineering Tolerances. Shop Keyed Shaft. e. Scientific Calculator Popup. Shaft Keyway Shear and Yield Strength Formulae and Calculator; Shaft (Arbor) Keyway Dimension Size Data - ANSI/ASME B94. The chart above shows the standard keyway dimension in relation to the shaft diameter. 442 2-5/16 2. It includes two tables: one for metric rectangular keys and keyways following the B. Keyway metric. nf. Equals Shaft Bore Keyway Keyway Diameter Nominal Shaft Bore Keyway Keyway Diameter Diameter (Width x Depth) Radius Over to Including Diameter minus Tolerance (Width x Depth) Radius 1/2 . Whether you need a 3′ shaft or a 6′ shaft, we have the right option for your application. Using shape optimization by providing chamfer and fillet at corners, it is shown that the fatigue life of keyways can be greatly improved as charts for „q‟ can be found in design hand-books and knowing. 628 2. 13. 1 8 3 +0. 3750 0. 070 To create a keyed joint, a key is used that fits between slots manufactured into the two parts being joined. Metric Key Keyway Dimensions Per ISO/R773 - Js9 Width Tolerance Table CHart. Membership Services. Now also available on-line at the site shown below. The following relation for the weakening effect of the keyway is based on the experimental results by; H. τ0 = Tc/J, where c = d/2 and J = πd4/32. Figure A–15–8 Round shaft with shoulder fillet in torsion. 095 . DESIGN PROBLEM. p ohanish christopher j. Please note that the key sizes in parentheses are older sizes that are no longer commonly used. Standard Keyway Size X/S Shaft/Bore Diameter. idw Author: Todd Ryan Created Date: 4/19/2012 2:58:00 PM For shaft Keyway width Sha ft keyway depth Bub keyway depth Ch. 6. Slots created by removing material on an internal cylindrical feature are called keyways. This is a Selecting the proper size keyway is determined by the shaft size. Keyway width tolerances per BS 4235 P9 fit. Metric Key Keyway Dimensions . KeyWay /Key Dimensions. Calculating the equivalent twisting moment acting on the key by dividing the torque by the shaft radius. keyways /keys dimension in accordance with BS 4235-1:1972: Specification for metric keys and keyways - Parallel and taper keys Note(1) The applicable shaft diameter is calculated from the torque corresponding to the strength of the key, for presentation as referential data for general-purpose use. Title: B-8584. Shaft Dia. Related: Shaft Key Seat for Shaft and Hub ANSI B17. 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 • Cost savings because the customer shaft can be made from turned shaft stock or cold rolled stock without additional machining. Motec House, Chadkirk Business Park, Stockport, Cheshire SK6 3NE Tel: +44 (0)161 217 7100 Fax. 430 0. (Dimensions comply with DIN 6885/1) † Requires the use of chamfered keys A list of standard keyway and corresponding key sizes for English shafts are listed below in Table 1. Keyway parallel keysKeyway metric Keys & keyways specificationGates belts, hoses, and applications: standard & non-standard shaft key. keyways in shaft and hub. NEMA C-Face BA Dimensions 143-5TC 2-3/4 182-4TC 3-1/2 213 MDS of Michigan offers a wide selection of keyed shafts in various sizes and configurations. com. The document provides specifications for nominal key and keyway sizes corresponding to nominal shaft diameters. 3/8 . This circular opening is known as a circular pocket or recess or is more commonly referred to as a woodruff keyway. Select the basic size from Table 4-1 and one of the ten fits from Table 6-1 and read or cut and paste limit dimensions and clearances (interferences) from Tables 6-2 through 6-6 or CD. The usual proportions of this key are : Width of key, w = d / 4 ; and thickness of key, t = 2w / 3 = d / 6 Design charts and tables have been developed for the elastic torsional stress analyses of prismatic shafts, splines, and spring bars with virtually all commonly 4 Single keyway shaft, volume factor (V) 11 5 Single keyway shaft, slope factor (dO/ds) 13 The end of a keyway has two standard designs, shown in Figure 1. 2. 312 / 2. SHAFT DIAMETER (IN INCHES) WIDTH DEPTH Keyway Sizing Chart. 0005 3/16 x 3/32 1/64 Guide for Shaft Keyway Design, Shaft Key Size Calculation and Selection - Free download as PDF File (. Figure A–15–9 Round shaft with shoulder fillet in bending. If other keyways are required, a shaft end detail drawing that shows the keyway dimensions must be provided to GAM. The document provides a table of standard metric key and keyway dimensions according to ISO/R773-Js9. This is a ± band clearance of saddle keys, friction between the shaft, key and 3 IS 2048—1983: Specification for parallel keys and keyways. Also, T 1 and T 2 4 Single keyway shaft, torque . Charts of Theoretical Stress-Concentration Factors K* t (Continued) Figure A–15–7 Round shaft with shoulder fillet in tension. 8. 053 0. 1 16,1 pera. min. The first is Js9. doc / . Woodruff Key Chart. Alway meto te orce e rero or rawings. Use plain bore part# for standard sizes, please contact us for non standard bore size avail-ability & Part#'s Keyway *Key O. Please refer to the Large AC motor chart, or to the specific motor drawings for L449T dimensions. 1 +0. The charts have been converted into numerical value using high precision computer techniques. Actual shaft fit will vary depending on actual shaft diameters. Such shafts are known as. The splined shafts are used when the force to be transmitted is large in proportion to the size of the shaft as Abstract : Design charts and tables have been developed for the elastic torsional stress analyses of free prismatic shafts, splines and spring bars with virtually all commonly encountered cross sections. Shaft/Hole: (radio keyways broached in the hub. txt) or view presentation slides online. 1 Size Shaft Dia. Metric keyways are dimensioned by width and depth as measured from the radius of the shaft to the center of the keyway. splined shafts. a reference book for the mechanical engineer, designer, manufacturing engineer, draftsman, toolmaker, and machinist machinery’s handbook pocket companion compiled and edited by richard p. The 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. 19 ; Keyseat Design Tolerances for Electric Motors and Generators; Arbor Keyway Cutter Hole Keyway Dimensional Data per ANSI/ASME B94. engineersedge. 0125 +0. Recommendations for key size, length and keyway depth as a function of shaft diameter are provided in ASME Standards B17. This shafting is true and straight and needs no turning, but if keyways are cut in the shaft, it must usually be straightened afterwards, as the cutting of the keyways relieves the tension on the Standard positioning of the keyways 10. The document provides standard dimensions for keys and keyways used in shafts based on the nominal shaft diameter. nominal shaft diameter bottom of shaft to bottom of keyway width reference depth 0. 4. The most commonly used tolerancing system for shafts and holes is detailed in ISO 286-1 & 286-2. The keyway dimensions are also different from the English system. 1(h/d) where e = Shaft strength ANSI Shaft and Hub Keyseat Dimensions for Woodruff Keys per. txt) or read online for free. 4 Prior to mounting the hubs, place the keys in the shaft keyways. Keyway depth and fillet radius per BS 4235. 0035) / 2. Key Size Standard Keyway Dimensions. var Weight (7. 7. 2-1967. G&G Manufacturing Company 4432 McKinley Street P. 5 Shaft in Torsion with Grooves with Flat Bottoms 76 2. While fitting this key, the semicircular part is fitted to the shaft keyway and the remaining upper part is fitted to the hub keyway. Standard Keyway Dimensions Shaft Diameter Set Screw Width Depth Up through 7/16" 8-32 3/32 3/64 Over 7/16" to and including 9/16" 10-24 1/8 1/16 Engineering Design Document Nr 1 Created by : L van Wyk Rev0 2014/03/15 KEYWAY DIMENSIONS Metric Keyways DIAMETER KEY SHAFT HUB OVER INCL W H WIDTH DEPTH TOL. 625 / . DI DI DI DI shafts, keys, and keyways and should be dressed or repaired accordingly prior to installation. 3 -0. 5 deep: T = (390 x 10 6 * 0. A slot drill can be used to mill the keyway in shafts of any size, the female side is more difficult (you're not surprised) bore sizes of up to 30mm can be Keyway Size Chart. 438 . In this case, the torque that can be transmitted when a key is added to the shaft is approximately 12 percent lower than the torque that can transmitted by the plain shaft (393 Nm vs 447 Nm). 1-1967 , ASME standard B17. 774. r or radius Radiuaing of key— bottoa over to b era. 19-1997; For shaft Keyway width Sha ft keyway depth Bub keyway depth Ch. Understanding and applying standard bore and keyway tolerances is essential for achieving optimal fits. Scribd is the world's largest social reading and publishing site. 1 +0,3 12 13,1 14. As a result, they are perfect for high-speed rotating assemblies because they effectively reduce the danger of damage. (a) Determine fatigue factors of safety at the width (W) and depth (D) of the desired keyway. Unless otherwise specified, if one set screw is desired it will be placed over the keyway; if two, the second will be placed at 90º. 001 +. 1. A17 A B C Te ta Te t ort S+ 2018. pdf - Free download as PDF File (. 125 0. For a solid steel shaft of 18mm diameter, with keyway 6 wide x 32 long by 3. 2 DIN 79 Square holes and shafts 10. k. The shaft is made from AISI 1020 cold-drawn steel. As noted above, when selecting a keyway tolerance, there are two common selections in the metric ED-6 454 630-852-0500 Engineering Data HP, RPM, Kilowatts and Torque Overview Formulas and Equations Horsepower One HP is the rate of work required to raise 33,000 pounds one foot in Download full-text PDF Read were updated and validated for 2 types of shafts. 10 5 Single keyway shaft, stress 12 6 Two keyway shaft, torque 14 7 Two keyway shaft, stress 16 8 Four keyway shaft, torque 18 Design charts and related data which support the elastic torsional stress analyses conducted by MISD are shown in figures 2 through 25 and tables 2 through 25, respectively. Also stress concentration factor for keyway on shaft is investigated by Xiaobin equations for all three loadings i. Dimensioning and Circular shafts with rect- angular and circular keyways, external splines, and milled flats along with rectangular and X-shaped torsion bars are presented. However Metric External Table Chart Thread Designations Sizes M 1. 2 +0. Sizes & Set Screws Wheel Bore or Diameter of *Shaft. 432 / . 6 IS 2294— 1980: Specification for Woodruff keys and keyways. The profile keyway is cut by an end-mill while the sled-runner keyway is cut by an ordinary milling cutter. keys with side dimensions approximately equal to one-quarter of the shaft diameter with the depth of the keyway, therefore, one-eighth of the shaft diameter. KEYWAYS XXXX Rectangular Keyways Square Keyways Metric: W x H Key W x T2 Keyway ISO Standard — mm Shaft Diameter Gro W x h Key: W x T Metric Standard Parallel Keyway and Key Sizes Shaft Diameter (mm) Keyway and Key Size Dimension Reference English Standard Keyway and Key Sizes Shaft Diameter Report "Keyway and 7Hollow-shaft design with feather keyway, splined shaft, shrink disk or SIMOLOC assembly system 7Solid shaft design with feather keyway or without feather keyway G_D041_EN_00201d Servomotor Servomotor Torque arm Housing in shaft-mounted design Hollow shaft with SIMOLOC assembly system Hollow shaft with splines Gates belts, hoses, and applications: standard & non-standard shaft key(pdf) transeals keyway chart Keyway metricShaft key standard sizes stock rectangular gates keys std diameters most non readily available. The present paper shows how numerical finite element Shaft of a Flexible Coupling and Gear(Passive Side) Precision Fitting Insertion of a Suction Valve and Valve Guide Interference Fit Press Fit n5 n6 p6 Fitting which requires much force for assembling, disassembling(a key or the like is necessary for high torque transmission). 19 Slide assembly onto shaft, flange first Locate assembly on shaft for proper drive alignment Tighten cap screws alternately and evenly to specified torque Easy Off Remove cap screws and install in product threaded holes Alternately and evenly tighten screws until bushing grip is released Flanged Design IMPORTANT! Do not use lubricants or anti-seize compounds on tapered bore AA dimensions shown in chart are legacy Baldor-Reliance typical values meeting or exceeding NEMA. a) PSfrag replacements b) Figure 1: The two standard keyway ends for parallel keys. 437 / . Determining the torque to be transmitted by the shaft-hub connection based on the power transmission requirements. +44 (0)161 217 7101. 1. 493 The hub keyway is dimensioned by its width and depth on the shaft – keyway sides. When selecting a keyway tolerance, there are two common selec-tions in the metric system. Standard Keyway Size Chart Posted on February 1, 2023 in FAQ , Industry Formulas , Size Chart We carry a wide range of products with keyways, including bushings , keyed shaft , and roller chain sprockets . 3′ Shaft Size Chart • Cost savings because the customer shaft can be made from turned shaft stock or cold rolled stock without additional machining. The prole keyway is cut by an end-mile while the sled-runner keyway is cut by an ordinary milling cutter. Nexus Seals KEYWAY AND SHAFT DIMENSIONS B-8584 1 1 B C A B. O. Related Resources: hardware. BRIAN DENGEL GENERAL MANAGER KHK-USA TOOTH TIPS. 16 Two PDFs with useful engineering data on keyway sizes and engineering limits and fits, just download. Steel having a tensile strength of not less than 590 N/mm* in the finished condition, unless otherwise agreed between the interested Parties. 5. + 0,030 ; yg 0 - 0 0,030 k 0,015 0,012 1,8 For a PDF version of the charts, click on the apprpriate link below: Eagle Tool Standard Keyway Chart; Eagle Tool Metric Keyway Chart; For more information, contact our sales department at 906. 501 1/8 x 1/16 1/64 9/16 to 7/8 . S. 21m 112 Length 13) -0. The common specification dimension, Keyway Size, is highlighted. 500 / . All dimensions are in millimeters. Rectangular sunk key. 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. 1 12 4 4 4 13. ) can be calculated. 1 0. You can think of them as being Internal (Holes) or External (Shaft) features. The shaft keyway is designed with a semicircular gap to fit the key in the Shaft. Size Shaft Dia. Please check motor drawing for actual dimensions. and the keyway 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. 597 7/16 . The splined shafts are relatively stronger than shafts having a single keyway. 0125 1. The key should fit snuggly in the keyway with minimal side Standard keys should be the same Nexus Seals Bore tolerances dictate the permissible deviation in the diameter of a machined hole, while keyway tolerances define the acceptable variation in the dimensions of the keyway slot, crucial for transmitting torque between shafts and components. 5 20 250 200 —360 Refer to the following chart to ensure all the ordered parts are present. D. These shafts usually have four, six, ten or sixteen splines. 018 * 0. 4375 0. 3 Tension (Axial Loading) 137 Keyways cut in certain area’s on the shaft; 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 the bottom of this page. a) End-milled or prole keyway b) Sled-runner keyway. t. 08 0. Our high-quality, cold-finished steel shafts are available for quick delivery. Light press fitting or the like is necessary for non-ferrous Metric Key Keyway Dimensions - Free download as PDF File (. The sunk keys are of the following types : 1. Frame L449T is not included in this chart. 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 Nominal Shaft Diameter Nominal Key Size Normal Standard Keyway Dimensions Shaft Diameter Set Screw Width Depth Up through 7/16" 8-32 3/32 3/64 Over 7/16" to and including 9/16" 10-24 1/8 1/16 ANSI-B17. See dimensions W and h in Figure 1. 1 Notation 135 3. f, k. 9. • A variety of tapered bushings [item 6] are available for each hollow shaft, providing flexibility and various shaft diameter options within the same gear unit. 6 Closed-Form Formulas for Grooves in Bars of Circular Cross Section Under Torsion 76 2. torsion, bending and axial and by Peterson equations for torsion and bending Get In Touch. The table lists nominal shaft diameters ranging from 6mm to 500mm along with the corresponding recommended key sizes, keyway widths, heights, depths, and tolerances. m ccauley, senior staff editor muhammed iqbal hussain, associate project editor industrial press, inc. DIAMETERS : KEYWAY: DIAMETERS: KEYWAY The feature type does not only apply to Holes or Shafts. Referencing Figure 1, the keyway dimension is W x T1. The common Applied 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 Metric Key & Keyway Dimensions per ISO/R773 - Js9 Width Tolerance Key & Keyway Dimensions - Millimeters Shaft Diameter "D" Key Size Nominal Keyway Width Hub "W" Keyway Depth Hub "T2" Keyway Radius "R" † Over Thru Width "W" Height "H" Nominal Min Max Min Max Min Max 6 8 2 2 2 -0. Check Details Standard inch keyway dimensions chart. NOTE - The mechanical properties of the steel will be specified The sunk keys are provided half in the keyway of the shaft and half in the keyway of the hub or boss of the pulley. It other words, the torsional strength of the shaft is reduced. may be obtained. 094 0. var. ), out of which the limits of the tolerance classes (H7, g6, etc. Sometimes you can put a square peg in a round hole. As it is generally defined, Woodruff keyways are semi-circular pockets that are driven into shafts to It is common to use keyways or splines in shaft applications to provide transfer of torque between components. ) and tolerance grades (7, 8, 9, etc. 1 9 3 +0. F. T = 393. 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 Nominal Shaft Diameter Nominal Key Size Normal Keyseat Depth Over Up to and Incl. 5 20 250 200 —360 +0. 1 Nm. As a general rule, the key is a tighter fit to the shaft so that 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. pdf. 2. Small keys are often square in section and the larger ones rectangular. (Squared) **Keyway Part# Add to plain bore wheel Part# **Keyway Part# with 1 #1. 587 / 2. Orthwein [4] suggested a design The above shaft tolerances are now covered in the new ANSI B32. 2 Stress Concentration Factors 137 3. pdf), Text File (. Keys and keyways are one of the most common shaft–hub connections. A capital letter refers to the hole size and lower-case letter refers to the shaft size. as shown in Fig. 10 1. Despite this fact very little numerical analysis has been reported. 052 0. 55 kg/ d ) kg/ 1000 pieces for Type B For taper keys of width b 56 to 100 am there are — no epecified lengtbe. Unless otherwise specified, the shaft keyway is assumed to be standard. 6 - M 18. This is a standardized ANSI woodruff key Below is a PDF link and a list of the standard keyway dimensions provided if requested. 1 1. IS 2292—1974: Specification for taper keys and keyways. It lists the shaft diameter range, 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. Standard Keyway Dimensions Shaft Diameter Set Screw Width Depth Up through 7/16" 8-32 3/32 3/64 Over 7/16" to and including 9/16" 10-24 1/8 1/16 Wheels: Keyways for Drive wheels & Custom Specials Standard Keyways, Key O. Table 1 details the appropriate key slot and key sizes for various metric bores. Author: Melyssa Kotecki Created Date: 4/29/2019 2:23:20 PM Metric Key Keyway Dimensions _ Engineers Edge _ www. Box 12086 Omaha, NE 68112-2086 1, the Metric key size is W x T. 314 . 375 / . lt also gives the relation to be observed between the diameter of the shaft and the section of the key. 386 0. Estimating the preliminary key dimensions - width, height and length based on the shaft diameter as per standards like ANSI B17. 10 The size of key for a particular shaft should be as per the BS standard and can be seen here: Standard Keyway Sizes. The slot is defined as a keyway or a keyseat, depending on the whether the slot is located on an internal or external feature. Keyway Chart - Free download as PDF File (. jtuqmd gbnlswh wofs fhfck yxwjf ptwik hxfv wijc clw svt