Those standards are also summarized in coupling manufacturers’ catalogs. 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. 8mm 1. In addition, set screw holes and keyways may be added as needed. 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. 3 Preferred length and weight of keys - Preferred length and weight of keys is given in Table 4. As noted above, when selecting a keyway tolerance, there are two common selections in the metric system. DOWNLOADS. Other inch and metric sizes are readily available. Nom. ANSI Single Pitch; ANSI Double Pitch (Conveyor) Stainless Steel; Agricultural;The more exact fit of the key and keyway also reduces play, and stress concentrations in, and improves the. Woodruff Keys. Non standard bores and over the keyways. Keyway Broach 1/16 to 1-1/2 Inch - 2. /4 5/. 9 Small Head Hex Flange Zinc Plated; DIN 910 Hexagon Head Pipe Plug. A key is a machine element used to connect a rotating machine. Keys are tapered along their length. 493. They have an alternating right- and left-hand tooth style for removing more material at high speeds than straight-tooth keyseat cutters. key way & key. Undersized Machine Key Assortments 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. keyway dimension is W x T1. These simple pieces of metal connect shafts to rotating components to transmit torque while ensuring that the components cannot move relative to each other. About Us. ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). Mechanical Tolerance Chart Data. 1 Metres Long. Imperial sizes of key steel bar are bright drawn to plus tolerances conforming to BS46 “keys and keyways”. scope: 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. 1 Square Keyway Tolerances Minimum 2. Hub keyway depth is one-half the nominal height of the key and measured from the side corner. 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. Standard Metric Keys Keyways for. 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 — Use individual keyway broaches in a variety of arbor hole sizes. It was published under the authority of the Executive Board on 22 February, 1972. The ISO sprockets have large pitches that are measured in sixteenths of an inch, but are expressed in metric units. 5000. 0 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. All the standards recognize this and specify tolerances for keyway so one could have two to four classes of fits. Interference Fit Bore Tol. Pre-cut key stock is available in standard inch and metric sizes. Product data for lock nuts requiring a keyway. Standard Metric Keys amp Keyways for Metric Bores with One. Keystock. Keyway size; b h c or r Standard size of b1 and b2 Tightening type Normal type r1 and r2 t1 t2; Standard size Tolerance （h9） Standard size Tolerance b1/b2 tolerance（P9） b1 tolerance（N9） b2 tolerance（Js9） Standard size Tolerance Standard size Tolerance; 2×2: 6~8: 2: 0 -0. DIN 472 circlips agujeros. Machine keys are often the same material as the shaft. A common standard available from the Mechanical Power Transmission Association is. 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. inch. Nov 10, 2006 #2Internal Retaining Snap Ring sizes and Bore Design 5. Metric Keyways Index page; BS 46 Square Keys and keyway Dimensions; BS 46 Square Keys and keyway Dimensions Ref. Has anyone got a link to one ? Thanks Roger . 094 0. The keyway dimensions are also different from the English system. H is measured Perpendicular to key. We also stock a variety of keyway. If metric thread pitch designation (e. In Australia, backyard half-courts generally start in size from about 7metres in height to fit the "free-throw line" (or 9m to fit the "three-point line") and 4 or 5 metres in width and upwards. 3/64" 1/16" 3/32" 1/8" 5/32" 3/16" 1/4" 5/16" 3/8" Component. 005, -. Keyway sizes: Out of stock: $297. Dimension standards: ISO 2982-2:. The 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. It may be mildly magnetic. The essential data for this standard have been extracted from ISO Recommendations R 7731) and R 7742). 1L, 2L, 3L, 4L and 5L are designed with a shaft extension without a keyway. Choose from our selection of steel metric key stock bars in a wide range. taper standards are based on the SMALL end of the taper so that propellers with different hub lengths will fit the same shaft diameter and have the nut face in the same position on the. In the Metric system it is common practice to specify the key size. Box 12086 Omaha, NE 68112-2086 encompassing standard. ; Lowenherz or Löwenherz Thread Size Table; Excel Spreadheet Design Calculator per. Shape and dimensions of parallel key and keyway Shape and dimensions of taper key, headed taper key and keyway Excerpt from JIS B 1301:1996 S1 = b's tolerance× 1 2 S2 = h's tolerance× 1 2 h2 = h, f = h, e ≒ b S1 = b's tolerance× 1 2 S2 = h's tolerance× 1 2 Key body Cross section of keyway Key bodyHollow shaft with key - standard design Design and Operating Data 116 Gear Units – 2016 7. shaft diameter u. 1-1967, ASME standard B17. , Naples, FL 34109. Gates belts, hoses, and applications: standard & non-standard shaft keyTaper metric dimensions keyway key bs 1972 keyways keys Standard metric keys & keywaysMetric key ametric. 774. 1-1967 (R1998) 3/16 7/32 1/4 1 3/4 2 1/4 2 3/4Browse L Type Hubs with Keyway - Metric Bores in the The Timken Company catalog including Part Number,Description ,Bore Size,Coupling Size,Keyway Size (W x D),Length thru Bore,Outside Diameter,CAD. Standard Calculator Bore Size. This British Standard has been approved by The Mechanical Engineering Industry Standards Committee. 14 mm. Keyway metric key iso dimensions standard keyways keys. keyways available upon request. 0000 /-. KEYS AND KEYWAYS. Standard Plain and Gib Head Keys Specifications per. See dimensions W and h in Figure 1. • Keys DIN 6885 → Page 842. dStandard Sprocket, Model 35A. Clearance Fit Bore Tol. Keyway additional modification is available for both single. In stock and ready to ship. Here, you can find detailed information about these machine elements. British ISO Metric Screw Threads Designations. 2 continued. Standard External Metric Thread and Fastener Sizes M 0. Buy. Part 1. Key Length DIN 6885. Woodruff keys work well near shaft shoulders, where a standard open keyway would create too much stress. Did. noahb110. Dimension standards: ISO 2982-2:. 6 Hollow shaft with key - standard design The standard design uses the parts that are normally supplied with every hollow shaft, as shown in Figure 4. H is the key height. Thin parallel keys and their corresponding keyways (Dimensions in millimetres) Thin taper keys with or without gib head and their corresponding keyways (Dimensions in. NOMINAL SHAFT DIAMETER BOTTOM OF SHAFT TO BOTTOM OF KEYWAY WIDTH REFERENCE DEPTH 0. Standard tolerancing on stainless keys and keyways Standard tolerancing on stainless keys and keyways to broach a keyway in bore with in 0005 tolerance with no. DIA. Custom shaft sizes and key sizes. $. The keyseat in a shaft for a parallel key. 4. 000 +. AUTOMATION & IIOT. 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. Standard Keyways Southeastern Shafting Mfg Inc in New. Width Depth Radius SizeBS 4235-1, 72nd Edition, May 24, 2019 - Specification for Metric Keys and Keyways — Part 1: Parallel and Taper Keys. 376 . , depending on the lock nut. 2-1967. We welcome export enquiries for key steel. Standard pin taper used in clamp devices, tapered pin, etc. 0. These metric set screws have good chemical resistance. Thin parallel tkeys and their corresponding keyways (Dimensions in millimetres) Clavetage par clavettes paralldes minces (Dimensions en millim&res) First edition - 1974-08-15 UDC 621. 000 Standard Setscrew Locations If one setscrew is furnished the location. 6 8 10 12 17 22 30 38 44 50 58 65 75 85 95 110 130 150 170 200 230 260 290 330 380 440. The height of metric keys decreases by 1 mm for every 100 mm of length. All material is furnished as Cold Drawn, Ground & Polished. Each metric standard is product specific. TruKey® Shafting from Keystone is designed to provide the straightest, most accurate keyed shafting, in the industry. Woodruff Key Assortments. 1. The key and key seat cross section are ISO standardized. 4mm 8mm 2mm 9mm 12mm 11mm 4mm 4mm 14mm 15mm DIN 7154, H7 Metric Bore and DIN 6885, Js9 Square Keyway Tolerances Page 1 of 4 British ISO Metric Screw Threads Designations. Appendix B Approximate equivalents of metric and inch units 22 Figure 1 — Variation in keyway depth in taper shaft 19 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 6PREFERRED FITS AND TOLERANCES CHARTS (ISO & ANSI METRIC STANDARDS) Preferred fits and tolerance table for hole and shaft basis systems which are given in ISO 286-1 (2010) and ANSI B4. 40. Broach tooling is most often as customized as the workpiece that it will cut. As double U- joints, they connect and transfer torque between two shafts that are either parallel to each other or are misaligned at an angle. Foreword. This is a +/- band clearance;. Woodruff key cutter size chartStandard woodruff keys Shaft standard key sizes rectangular gates keys diameters most non std readily. Minimum hardness, tensile strength. Y. ANSI B27. Regions using "inch" units work with NEMA standards (see page NEMA Frame Size). Insert JS9 Tolerance. Standard External Metric Thread and Fastener Sizes M 0. 025: h9: 0. 002. 8mm 2. Keyway metric key iso dimensions standard keyways keys r773 pdf bores shaft hub. As bushing bores approach the maximum recommended diameters, keyway depths are reduced in order to extend maximum bores as much as. Keys are made of steel. Rotary Shafts - Straight. Just enter the size of the key and shaft, then click "Calculate". 886. Metric External Table Chart Thread Designations Sizes M 1. Lockwashers engage a keyway in a shaft or adapter sleeve slot, then locks the accompanying locknut in position by bending one of the washer tabs into the nut’s outside diameter slots. Taper metric dimensions keyway key bs 1972 keyways keys. Choose from our selection of metric keys in a wide. 19-1997; Design of Square Key and Keyway (Wood Ruff. Metric Shaft Key Specifications. Standard L Type coupling hub materials are either sintered iron (L035-L190) or cast iron (L225-L276). These keys have a rounded shape that makes them easy to remove when parts need to be taken apart frequently. 2. Unless otherwise specified, the shaft keyway is assumed to be standard. The parallel keyway milling process starts by cutting a simple keyway slot, all the way through the axial diameter of the part. 414 Maximum 2. Metric module, side fit ? Part 2: Dimensions. Read more…. View. ANSI-B17. Metric key keyway dimensionsKeyway metric dimensions key iso tolerance js9 r773 width per depth hub t2 height radius text mill question answered hasn Agma asa. All dimensions in inches. For more information, contact our sales department at 906. 2 metres. Keyways Index BS 46 Keys and keyway Dimensions-Parallel Rectangular Ref Standard . Email. This standard presents metric dimensions, tolerances, sizes and fits for straight bores, tapered bores, keys and keyways for unmounted industrial flexible couplings. Buy. Choose from our selection of keyway stock, including machine key stock, rounded machine keys, and. Blair 7/8" ROTO Cutter (BLR-11340). Companion pulleys contain integral spokes which run radially on the pulley. This key stock is stepped to match repaired keyways in shafts or gears. All dimensions in inches, coer, SAVMAM GNV SATHfTable 1. net. BS 4235-2:1977, ISO 3912-1977: Specification for metric keys. Double bearing supports use a Type 3N, 3L and 3K. RE: Standard tolerancing on stainless keys and keyways The keyway must be slightly larger than the key itself if the key needs to fit into the pocket. --keyway dimensions Keyway sizing chartDimensions standard keyseat keyway shaft shafts diameter nominal. The tolerances defined in ISO 286-1 are applicable to size range from 0 mm to 3150 mm but there are exceptional cases defined in the. Locate keyways per Figure 6 and Table 8. ANSI Standard Woodruff Key Size Table Chart ANSI B17. The profile of a straight sided spline is defined by. keyway tolerances Mechanical engineering other topics. Shaft Key Seat Depth Control Values S and T for Shaft and Hub ANSI B17. in Machine Elements & Structural Engineering. BB AK BD BG AA AB AC AF AJ The condensed dimensions shown on these pages are for general reference only and are not for construction. Carbide Staggered-Tooth Keyseat End Mills. This standard presents metric dimensions, tolerances, sizes and fits for straight bores, tapered bores, keys and keyways for un-mounted industrial flexible couplings. 5000 2. Bushings rest inside the arbor hole of your workpiece and act as guides to ensure rigid and accurate keyway cutting. For example, an ANSI 202 measures 1/16 x 1/4, while ANSI 1012 measures 5/16 x 1 1/2. 2 Normative references. Metric, ISO Heat Transfer Hydraulics Pneumatics HVAC Systems CalcsWhen it comes to Metric Keyway Broach Sets, you can count on Grainger. This produces a high strength-to-weight ratio advantageous to fractional. The dimensional charts below relate to metric rectangular keyways and metric rectangular keys, imperial rectangular keyways and imperial rectangular keys and imperial square keyways and imperial square keys. ). Woodruff Keys Max 0. 3mm 2. 3mm 2. 1 Class 1 standards for dimensions and tolerances. Nearly every shaft diameter has a corresponding standard keyway width and depth – this calculator helps you find it. AGMA ASA Keyway and Bores Design Data including dimension and tolerances. K80 sprocket old type B semi F series with machined shaft holes (New JIS key) FBN60B finished bore sprocket. B18. Industry standards for key sizes in various bores exist for both the English and Metric systems. Metric keyways are dimensioned by width and depth as measured from the radius of the. com. Keyways will be furnished. Rectangular-faced keys are used for larger shaft diameters and square keys are used for shafts smaller than 6. Dimensions shown are in Inches, if you wish to convert to mm, please use our universal converter. rad 10 12 4 4 2. 2 Normative references . 19-1997; Design of Square Key and Keyway (Wood Ruff) Stress, Shear and Torque; Parallel Key. pdf. Therefore, this standard does not intend to replace any existing metric standards, but to define what is preferred. pdf Key sizeKeyway metric key iso dimensions standard keyways r773 keys pdf bores shaft hub depth diameter standards engineering table edge width. Keyway: One or more square-edged cutouts align with the. Introduction. 360 Minimum 2. 350 Maximum 2. 2M - Lock Washers (Metric Series) This Standard covers the dimensions, physical properties, and methods of testing for helical spring and tooth lock washers. Where standard ends do not satisfy the application requirements, special ends may be machined to customer specifications. Figure: Reference graphic for dimensionsMetric Keyway Sizes. 3mm 3. Length of Screw Thread Engagement per. Woodruff keys are an. We offer a comprehensive selection of more than 27,000 miniature and specialty cutting tools that are all fully stocked. B. See dimensions W and h in Figure 1. Because they're usually shorter than. Bushings rest inside the arbor hole of your workpiece and act as guides to ensure rigid and accurate keyway cutting. The tolerance zone for shaft keyway width b with normal fit is ISO N9 and with close fit ISO P9. Specification. Finished bore with standard keyway on other side protects shafts from damage; Customize bore size in-house to save time and cost; Superior holding power over set-screw type couplingsVariations of machine keys include parallel keys, tapered keys, Woodruff keys, hi-pro keys, and non-rok keys. Couplings • Standard Metric Keys & Keyways for Metric Bores with One Key (Page 2 of 2) All Types . 5. The collar rests on top of the workpiece rather than being supported from below. Standard metric keys keyways for metric bores with one key. 4375. 16~0. Browse Metric Set Screw Couplings w/Keyway MRC4H-Series in the Climax Metal Products Company catalog including Item #,Bore,OD,Length,Screw Size,Keyway Size,Material,Weight,CAD. 7 size chart. Metric module, side fit ? Part 2: Dimensions. Total Height (X) = Depth (Y) = Return to broaching : 2388 State Route 726 Eaton, Ohio 45320 (937) 456-2232 Fax (937) 456-2282 [email protected] 7/16 . Keyway metricFalk_metric_key_keyway. 8mm 2. Also known as sine keys. They have an alternating right- and left-hand tooth style for removing more material at high speeds than straight-tooth keyseat cutters. 3mm 2. Depth of keyway is measured at CENTRE. 4. To confirm the status of any standard, identify the replacement standard if it is obsolete and/or purchase the standard please use. 125 0. Special keyway configurations. Partially Keyed Rotary Shafts. Keys and keyways BS 46 Part 1 : 1958 Square Keys and keyway Dimensions all dimensions in inchesPage Count: 34. Made of solid carbide, these keyseat cutters are harder, stronger, and more wear resistant than high-speed steel for the longest life and best finish on hard material. 1/8″ B Type HSS Keyway Broach; 3/16″ B Type HSS Keyway Broach; 5/32″ B Type HSS Keyway Broach; 5/8″ B Type Collard Bushing (1) 8mm C-1 Type HSS Keyway Broach; 20mm C Type Collard Bushing; 7mm C Type HSS Keyway Broach; 6mm C-1 Type HSS Keyway Broach (1)The keyway is a longitudinal slot in both the shaft and mating part. These are also known as feather keys. pdfKeyway broach 1/16 to 1-1/2 inch, 2. In stock and ready to ship. The notes and tables below relate to straight cylindrical involute splines in accordance with BS ISO. TEL : +81 48 254 1744. S. Many keyways are milled directly into a shaft or broached into the. 25: 2Recommended Hub Keyway Dimensions (mm) Reference AGMA 9112-A04 Standard metric keyway width tolerance per Js9 Imperial Standard Bore and Keyway Info Recommended Bore Tolerance for Imperial Shafts (Inches) Nominal Shaft Range Shaft Tol. 002 on the key. organizations. Metric Key Keyway Dimensions Per ISO R773 Js9 Widt. , depending on the lock nut. Machine the center of these sprockets to fit the exact dimensions of your shaft. They meet DIN 6887, an international standard for machine keys. 002, -. Relevant British Standards. 010 0. Shaft /Hub/keyway material (BS EN 10083 C45 normalised. KEYSTEEL - METRIC RECTANGLE 12'' PLATED - 14MM X 9MM. Loose running fit for wide commercial tolerances or allowances on. Face Width Face width is limited in its maximum dimension to allow proper. Non standard bores and over the keyways. 1 for Js9 Dimensions) Key & Keyway Dimensions – Millimeters Coupling Hub Keyway Dimensions – InchesThe DA17 sets cover the keyway size range from 1/16″ to 3/4″, and the DA-18 sets cover the range from 7/8″to 1-1/2″. length, 136700. G&G Manufacturing Company 4432 McKinley Street P. w / 3 = d / 6 where. 010 / -. Keyway Bore Diameter Size Bore Reference -0. Moorland Rd. KEYWAY. This Standard covers the size, type and tolerances of parallel and taper keys and keyseats, and their relationship to shaft diameters and bore diameters. 1875 0. However, in the case of cutting simple, standard keyways V W Broaching Service carries a full line of tools ready for immediate or expedited shipment. ISO 286Application error: a client-side exception has occurred (see the browser console for more information). 2515 0. The height of metric keys decreases by 1 mm for every 100 mm of length. Clearance Fit Bore Tol. KHK produces a wide range of standard & special spur gears. Standard woodruff keysWoodruff ansi metric keyway fasteners nominal Key steel pulleys belts metric transmissions. com. 004, -. The teeth are sized to fit into. Non standard bores and over the keyways. All dimensions are given in inches. These keyless bushings convert clamping action between inner and outer tapered rings into radial pressure that locks the device to the shaft and. The first is Js9. A woodruff key, also known as a half‑moon key, is a semi-circular machine shaft key that prevents gears, hubs, or other components from moving independently of a rotating shaft or spindle. scope: This standard presents inch dimensions, tolerances, and sizes for straight bores, tapered bores, single keys and keyways for unmounted industrial flexible couplings. 1250 0. 0 2. Shaft and Hub Keyway and Key Sizes dpk3n3gg92jwt. Keyway size charts can come in both imperial and metric measurements. 375 / . British Standard Chain was developed before American-styled chain, but was limited in its development by what materials were readily available as roller chains evolved. keyways available upon request. keyways /keys dimension in accordance with BS 4235-1:1972: Specification for. 2-1978 standards. They’re also available in metric. 99 #22. FOREWORD. Woodruff Keys are an alternative to Parallel Keys. Engineering Information Taper Metric Key and Keyway DimensionsThe ISO 2768 series of standards were developed by the International Organization for Standardization to provide general tolerances for linear and angular dimensions without individual tolerance indications on technical drawings. Metric Remachinable One-Piece Split Coupling with Keyways (22) Fully metric, including clamp screws. 46: Part 1 : 1958). 49 4 M i4 Ms ai l gn lm m e Mn t4 FMm u Mdm Um 49 4 M i4 Ms ai l gn lm m e Mn t4 FMm u Mdm Um 450 630-852-0500 Safety Warning ED-2 When using Lovejoy products, you must follow these instructions and take the following precautions. 442 2-5/16 2. Standards such as BS 46, ANSI B17. Keyway Js9 Tolerance Chart 173 255 205 43. 34109. 5 +. 3/32 X 3/64. One of the following methods should be used to specify keyways: Metric: WxHKey WxT2Keyway ISO Standard -mm Shaft Groove Diameter WidthH T1 T2* So WInstall these keys in a drilled and reamed hole to locate fixtures and vises on your machine table. Recommendations for key size, length and keyway depth as a function of shaft diameter are provided in ASME Standards B17. . Bushings for smaller arbor holes are collared for easier handling. Use them in light duty applications to connect gears and other components to shafts. RoyMech Resources Keyways Woodruff Metric key and Keyway Dimensions These Pages include various standards. KEYSTEEL - METRIC RECTANGLE 3. We can also make special pre-keyed shafts (English or metric) with single, multiple, or interrupted keyways in diameters as small as 1/. Style A - Flat sprocket with no hub extension either side . Over To (Incl. 3. dimensioned by its width and depth on the shaft keyway sides. †. X. . * These Width A values were set with the maximum keyseat (shaft) width as that figure which will receive a key with the greatest amount of looseness consistent with assuring the key's sticking in the keyseat (shaft). In AGMA 9112-B15 the “measurement of bores” section was moved from an annex to. 800. Other inch and metric sizes are readily available. Use them to connect gears and other components with tapered keyways to shafts. RE: Metric standard for 2 keyways in a shaft (180 degrees apart) Artisi (Mechanical) 9 Oct 19 15:02 Why 2 keyways, does the impeller have to rotate in 2 directions, or is it poor design or a fix up that has been introduced. The use of standard, “off the shelf” items can significantly reduce both inventories and. Available in metric sizes, these 18-8 stainless steel. Keyways Index BS 46 Rectangular Taper & Gib Head KeyWay & Key Dimensions. Figure 2 Keyway Sizes. 020 0. They have an alternating right- and left-hand tooth style for removing more material at high speeds than straight-tooth keyseat cutters. 14mm X 9mm Rectangle Unplated Key Steel x 3. December 30, 2020. In the Metric system it is common practice to specify the key size. 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. Pull Type keyway Broaches are available either as industry-standard 500 series or 600 series. txt) or read online for free. Therefore, this standard does not intend to replace any existing metric standards, but to define what is preferred. Keyways for Milling Cutters and Arbors. Use the keyways with machine keys to transmit torque to gears, sprockets, and other keyed components. Keyless Bushings Besides keyed bushings, several types of keyless locking devices using a tapered wedge principle are available. 1 Class 1 standards for dimensions and tolerances. Keyway Bore (inches) Reference Height (d) 1. I typically use +0. 2 Normative references . ISO Hardware Specifications Table. * These Width A values were set with the maximum keyseat (shaft) width as that figure which will receive a key with the greatest amount of looseness consistent with assuring the key's sticking in the keyseat (shaft). Carbide Staggered-Tooth Keyseat End Mills. 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. Address.