Metric Keyways Index page; BS 46 Square Keys and keyway Dimensions; BS 46 Square Keys and keyway Dimensions Ref. Relevant British Standards. Read more on how keys and keyways work and what types are available – Keys and Keyways. Includes Tapping Drill Sizes for Thread Cutting Taps 17 Inches Tall x 11 Inches Wide when folded out. 000 +. They're available in metric sizes. g. They meet DIN 6887, an international standard for machine keys. BS 46 Rectangular Taper & Gib Head KeyWay & Key Dimensions Ref Standard . 587 / 2. This International Standard specifies the dimensional characteristics of thin parallel keys and of the corresponding keyways in shaft and. In AGMA 9112-B15 the “measurement of bores” section was moved from an annex to. Designed to meet ISO 606 and DIN 8187 international dimensional standards, these sprockets are for use with compatible ISO and DIN. Standard pin taper used in clamp devices, tapered pin, etc. 1-800-ASK-4WEG Sales 1-800-839-2529 Warranty 1-800-ASK-4WEG After Hours Sales Select after hours option 1-877-WEG-DRIV Drives Tech Support NEMA Standard Dimensions IEC Critical DimensionsDimensions of shaft keys, standardized many years ago, are commonly considered to be the main concern in applying these devices. Browse L Type Hubs without 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,Hub Length,Outer Diameter,CAD. organizations. Bushings for smaller arbor holes are collared for easier handling. As you may know, people have search hundreds times for their chosen books like this Ansi Standard Keyway Sizes Pdf, but end up in malicious downloads. In stock and ready to ship. Contact our sales office and consult our shipping policy for further details. 38 1958. Balance the assembly by adding balancing clay to the workpiece. 5000 2. Pitch Diameter of Threads Calculator and Formula; Retaining Snap Ring Stress and Failure Formulas and CalculatorYour Special Are Our Standards. The tolerance zone for shaft keyway width b with normal fit is ISO N9 and with close fit ISO P9. Keyway Broaches. $8. Standard Metric Keys Keyways for Metric Bores with One Key; Keyway Cutter Hole Keyway Dimensional Data for MIlling Centers and Arbors - ANSI/ASME B94. Finished Striaght bores for standard AGMA Class 1 Clearance fit. MB Series. Specifying Metric Keyways Dimensioning and specifying Metric keys and keyways varies significantly from the English system. What are the standard keyways that go with each shaft size? Fortunately, the majority of the metric standards agree on the appropriate key to go with each bore size. The sizes and tolerances contained in this Standard are intended for single key applications only. The collar rests on top of the workpiece rather than being supported from below. ANSI B17. All dimensions in mm. Abrading & Polishing;. We are fully equipped to supply special Pull Type Keyway Broaches to your. American National Standard --Bores and Keyways for Flexible Couplings (Metric Series) 1 Scope This standard presents metric dimensions, toler-ances, sizes and fits for straight bores, tapered bores, keys and keyways for unmounted industrial flexible couplings. Therefore most motor series are offered with both standard frame sizes. 000 Standard Setscrew Locations If one setscrew is furnished the location. Figure 2 Keyway Sizes. Simcut BF Keyway Broaching discourse. ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). length, 136700. A list of the standard key sizes and corresponding keyways for Metric shafts are listed below in Table 2. They have an alternating right- and left-hand tooth style for removing more material at high speeds than straight-tooth keyseat cutters. 50 : BR-10 Details:Fuller Fasteners, Distributor of Metric and Imperial Fasteners, stainless steel, brass, nylon, hex nuts, bolts, nuts, screws, taps, dies, tools and kn95 masks. Recommended uniform relationship between shaft diameter and key sizes for parallel and taper keys. Standards by the ISO Council. Keyway metric key iso dimensions standard keyways keys r773 pdf bores shaft hub. Max. Keyway broaches are operated with a hand press or hydraulic arbor press. Install these keys in a drilled and reamed hole to locate fixtures and vises on your machine table. Metric module, side fit ? Part 2: Dimensions. Face Width Face width is limited in its maximum dimension to allow proper. Finished Striaght bores for standard AGMA Class 1 Clearance fit. We stock pre keyed shafting in many diameters, including metric diameters, with standard keyways. 8mm 2. pdf. Also, as. 6 - M 18. This British Standard is the first of a series for metric keys and keyways and has been prepared. We stock duMONT keyway broaches in a range of sizes (American Standard or Metric) and coatings (Std, TiN, TiAlN) ideal for short run production and general maintenance. Keyway metric dimensions key iso tolerance js9 r773 width per depth hub t2 height radius text mill question answered hasnNSI Shaft and Hub Keyseat Dimensions for Woodruff Keys per. Metric Standard Parallel Keyway and Key Sizes Shaft Diameter (mm). British Standard :BS 46 Part 1 : 1958 Keys and keyways and taper pins. Metric bores are defined in ISO standards while English bores are defined in AGMA and ANSI standards. Technical Reference DME. in shape, and not square as in the English system. Loose running fit for wide commercial tolerances or allowances on. Standard Metric Keys amp Keyways for Metric Bores with One. H is measured Perpendicular to key. 2-6 Antimony St, Carole Park QLD 4300, Australia Phone +61 7 3271 5424. The tolerance zone for shaft keyway width b with normal fit is ISO N9 and with close fit ISO P9. Keys are made of steel. INTRODUCTION — The general practice in industry is to supply coupling hubs without fillet radii in the keyway corners to permit the use of standard commercial keys instead of keys with chamfered. To confirm the status of any standard, identify the replacement standard if it is obsolete and/or purchase the standard please use. 2 Normative references The following standards contain provisions which, throughreferenceinthistext,constituteprovisionsof this American National Standard. 0005mm). 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. The deviation determines if the feature will be. American National Standard --Bores and Keyways for Flexible Couplings (Metric Series) 1 Scope This standard presents metric dimensions, toler-ances, sizes and fits for straight bores, tapered bores, keys and keyways for unmounted industrial flexible couplings. Keyway Bore Diameter Size Bore Reference -0. and 25mm and Type AFS sizes up to 11/2 inch are in stock. 3/64" 1/16" 3/32" 1/8" 5/32" 3/16" 1/4" 5/16" 3/8" Component. Table 1 details the appropriate key slot and key sizes for various metric bores. Because they're usually shorter than. 427-140_manual. 5000 2. ; Lowenherz or Löwenherz Thread Size Table; Excel Spreadheet Design Calculator per. Generally, there are two classes of stock available for sunk keys, mainly parallel keys. 004, -. Part 1. 2 mm. Key standard sizes shaft failure theories ppt powerpoint presentation diaMetric woodruff keys are supplied to din 6888 / iso 3912 in c45k key Keyway chartKeys standard metric keyways mechanical. 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. 11, Forged Steel Fittings, Socket-Welding and Threaded;Unfortunately, misaligned keys and keyways can result in mechanical failures. Minimum hardness, tensile strength. Over To (Incl. = 1. 8 10 12 17 22 30 38 44 50 58 65. View. Metric DIN 6885 Parallel Key High Type “A” (aka feather keys) is a component used to connect machine assemblies to a shaft in. 1-1967, ASME standard B17. Table of contents. Bushings rest inside the arbor hole of your workpiece and act as guides to ensure rigid and accurate keyway cutting. --keyway dimensions Keyway sizing chartDimensions standard keyseat keyway shaft shafts diameter nominal. 095 . Keyway Js9 Tolerance Chart 173 255 205 43. 57 inch; Bore Diameter 2: 1. To confirm the status of any standard, identify the replacement standard if it is obsolete and/or purchase the standard please use. Rotary Shafts - Straight. B. KEYS AND KEYWAYS. Contact Us. Cylindrical. Standard External Metric Thread and Fastener Sizes M 0. 11/8″ 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)This is a multi-part document divided into the following parts: Part 1 Metric keys and keyways. KEYWAY. Introduction. 4 mm. 46: Part 1 : 1958). Shaft (Arbor) Keyway Dimension Size Data - ANSI/ASME B94. For example, an ANSI 202 measures 1/16 x 1/4, while ANSI 1012 measures 5/16 x 1 1/2. Use them to connect gears and other components with tapered keyways to shafts. 3mm 2. keyway tolerances Mechanical engineering other topics. These metric 316 stainless steel set screws have excellent chemical resistance and can be used in saltwater environments. 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. 3/8. British Standard Chain was developed before American-styled chain, but was limited in its. rad 10 12 4 4 2. 0 2. They conform to ANSI B17. 1250 0. Woodruff keys work well near shaft shoulders and on tapered shafts. Use them to connect gears and other components with tapered keyways to shafts. ANSI B17. The deviations are less than the basic size. 14mm X 6mm Rectangle Plated Key Steel x 12'' Long. Metric Standard Parallel Keyway and Key Sizes Shaft Diameter (mm) Keyway (mm) Key (mm)*. 2-1978 standards. Woodruff keys work well near shaft shoulders, where a standard open keyway would create too much stress. However, since the corner of the keyway is normally chamfered, it is difficult to accurately measure a keyway’s depth during manufacture. 0005-. 25: 2 Relevant British Standards. Parallel keysGates belts, hoses, and applications: standard & non-standard shaft key Metric keyway sizes. Bushings rest inside the arbor hole of your workpiece and act as guides to ensure rigid and accurate keyway cutting. COMPONENTS PowerDrive LLC Bore Tolerance 0 to 2 2 to 3 3 to 4 Over 4 +. TOLERANCES ISO metaux detail com. 38 1958. MPTA. All torque transmissions keyway sizes archives all torque. Typical steels for locknuts are: AISI, C1015, C1018, C1020, C1025, C1035, C1117, C1118, C1212, C1213, and C1215. Shaft and Hub Keyway and Key Sizes dpk3n3gg92jwt. Recommendations for key size, length and keyway depth as a function of shaft diameter are provided in ASME Standards B17. 1265 0. 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. B. 800. Keys are made of steel. 2 continued. Eagle Tool Metric Keyway Chart. The schematic representation of the fit is also drawn by tolerance calculator. This standard describes the ISO system of limits and fits for mating parts as it is approved for general engineering usage in the United States of America. X. Use individual keyway broaches in a variety of arbor hole sizes. 5, Pipe Flanges and Flanged Fittings: NPS 1/2 through NPS 24 Metric/Inch Standard; ANSI/ASME B16. Thin parallel keys and their corresponding keyways (Dimensions in millimetres) Thin taper keys with or without gib head and their corresponding keyways (Dimensions in. bxh Radius r. Metric thread, 5H: ISO 965-3 Axial run-out. ; Image credit: Carlisle Power Transmission. 000 +. key way & key. T. This primer provides answers to frequently asked questions related to metric bores and keyways used in couplings. Chain. Get In Touch. noahb110. Key strength and steel analysis entering into the makeup of stock for keys is not within the. pdf Key sizeKeyway metric key iso dimensions standard keyways r773 keys pdf bores shaft hub depth diameter standards engineering table edge width. net. 16~0. 19-1997; Design of Square Key and Keyway (Wood Ruff) Stress, Shear and Torque; Parallel Key and Taper Keys. Open navigation menuBritish 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 7 1/2 9 Square Keys preferred for shaft diameters above this line: rectangular keys, below Key 3 3/4 4 1/2 5 1/2 Shaft Key Size Versus Shaft Diameter ANSI B17. Standard woodruff keysWoodruff ansi metric keyway fasteners nominal Key steel pulleys belts metric transmissions. But also, there are lots of kinds of other applications. Carbide Staggered-Tooth Keyseat End Mills. 2. Hub to Shaft. One-Piece Clamping Collars; Two-Piece Clamping Collars. STANDARD KEYWAY BROACHES revtool eu. 0mm Metric - Standard Sizes. 34109. Keyways for Milling Cutters and Arbors. . keyways & keys dimension in accordance with BS 4235-1:1972: Specification for metric keys and keyways - Parallel and taper keys Key Dimensions Standard keylengths (mm). The main difference between each of the hex cap screw standards is the width across the flats dimensions for the M10, M12, and M14. JIS B1180-8. Box 12086 Omaha, NE 68112-2086 encompassing standard. [email protected] width P9 tight fit (standard design) JS9 or N9 loose fit (requires written agreement) see also. 3mm 5mm 5mm 5mm 5mm 6mm 6mm 6mm 8mm 8mm 22mm 24mm 16mm 17mm 19mm 20mm 25mm Keyway Width (w) 10mm 3mm 3mm 1. We can also make special pre-keyed shafts (English or metric) with single, multiple, or interrupted keyways in diameters as small as 1/. When a keyway is damaged, cut a new, wider one. Consent to Cookies & Data processing. We can provide keyed shafts in any length up to 20 foot. Therefore, this standard does not intend to replace any existing metric standards, but to define what is preferred. scope: This standard presents inch dimensions, tolerances, and sizes for straight bores, tapered bores, single keys and keyways for unmounted industrial flexible couplings. 8mm 2. The ANSI standard will be the 104-Key, 87-Key and 61-Key layouts we have available. Also calculated are the overall measurements for shaft and bore, as well as the chord height. Keyway misumiKey and keyway dimensions. 7 size chart. 3mm 5mm 5mm 5mm 5mm 6mm 6mm 6mm 8mm 8mm 22mm 24mm 16mm 17mm 19mm 20mm 25mm Keyway Width (w) 10mm 3mm 3mm 1. 0 2. The common specification dimension, Key Size, is highlighted. Sign-In Create Account. Introduction. Standard . The keyseat is cut into the shaft and the key goes into the keyseat, between both parts forming a secure bond. The ISO sprockets have large pitches that are measured in sixteenths of an inch, but are expressed in metric units. . lt has been approved by the Member Bodies of the following countries : Austria India Belgium Japan Canada Netherlands clearance fit bores with set screws. DIN 6885A Steel Plain. Keyway Depth. Table of Metric Shaft Tolerances per. Specification. 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 . Metric thread, 5H: ISO 965-3 Axial run-out locating face/thread: 0,02 to 0,06 mm max. 1. 002/-0. Woodruff Keyways & Keys. Carbide Staggered-Tooth Keyseat End Mills. Fractional Inch; Metric; Keyway Width. The IEC 72 defines motor frame size standards for regions that use SI units. Standard and metric keyway broachesTable aii-12. Google Rating. this Ansi Standard Keyway Sizes Pdf, but end up in malicious downloads. Supplies and solutions for every industry, plus easy ordering, fast delivery and 24/7 customer support. It establishes: (1) the designation symbols used to define specific dimensional limits on drawings, material stock, related tools, gages, etc. The keyseat in a shaft for a parallel key. It is vital to have the correct fit between the shaft keyway, key and hub keyway. Bore Keyway Fillet Key (D) Tol. imperial (pre-war) keyways diameter key shaft hub over incl w h width tol. The relation between diametral pitch and module is as follows: 25. Keyway Width. Tolerances and fits comply with, or are within, AGMA 9002-A86 standard (Class 1 clearance fit). depth. We offer a comprehensive selection of more than 27,000 miniature and specialty cutting tools that are all fully stocked. J755_200912. for example, a hobbing machine, and deburring. 000 for all standard keyways BORE, KEYWAY & SET SCREW INFORMATION MECHANICAL P. SAE has standardized shaft configurations to use keyways and splines to attach components. One of the following methods should be used to specify keyways: Metric: WxH Key W x T2 Keyway British: WxH12 Key W x H Keyway ISO Standard-mm Imperial -Inches 3. dhanishl. BS 4235-2:1977, ISO 3912-1977: Specification for metric keys. Gates belts, hoses, and applications: standard & non-standard shaft keyTaper metric dimensions keyway key bs 1972 keyways keys Standard metric keys & keywaysMetric key ametric. ANSI Roller Chain. For technical drawings and 3-D models, click on a part number. Fast-Cutting Carbide Square EndMills for Stainless Steel and Titanium. DIN 960 is the specification for partially threaded fine thread metric hex capKey (engineering) In mechanical engineering, a key is a machine element used to connect a rotating machine element to a shaft. The preferred method for dimensioning a keyway is with a local note. In addition to the standard sprockets, special sprockets may be available in the same styles . Keyway Js9 Tolerance Chart 173 255 205 43. New diameter sizes (13, 16, 17, 18 and 22) are added for h9 tolerance types. Milling a keyway in a steel shaftKeyway shaft coupling hole service couplings modification additional motion control tapered parallel Shaft keyway keyedKeyway metric key iso dimensions standard keyways r773 pdf keys shaft bores hub depth diameter standards engineering width table angelica. 2-1967. Thin parallel keys and their corresponding keyways (Dimensions in millimetres) Thin taper keys with or without gib head and their corresponding keyways (Dimensions in millimetres) Straight cylindrical involute splines — Metric. Products. They are called “keys” because they lock a component to the shaft by means of a corresponding keyway in a shaft. 002. Total Height (X) = Depth (Y) = Return to broaching : 2388 State Route 726 Eaton, Ohio 45320 (937) 456-2232 Fax (937) 456-2282 webmaster@kramerusa. EN Standard. 3mm 3. * 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). Shaft /Hub/keyway material (BS EN 10083 C45 normalised. 57 inch; Coupling Design: One Piece Clamp; Design Units: MetricPFEIFER INDUSTRIES, LLC. ISO 286 Chart Calculator. 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. Key . In the National basketball Association (NBA), the court is 28. 0 Cart. 360 Minimum 2. The dimension from the top of the keyway to the opposite bore side, “T-dim”, is calculated from (refer to ANSI/AGMA 9002-B04) the following: T = bore + (h kw - Ch)Per BS 4235-1:1972: Specification for metric keys and keyways – Parallel and taper keys. These are available in Both Inch as well as Metric Sizes. Also known as sine keys. The height of metric keys decreases by 1 mm for every 100 mm of length. A sprocket with an internal parallel keyway. Dimension standards: ISO 2982-2:. 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. 8mm 2. 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. d Tolerance Class Shaft t1 Hub t2. 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. (ISO). The differences are highlighted in red in the images below. This specification includes index tolerances for multiple keyways. - inch bores with metric keyways; - metric bores with inch keyways; - metric bores with metric keyways; or - shaft keyseat tolerances. Standard pulleys are pulleys that have traditional dimensions, with one or multiple grooves, which mate with classic, small-engine, and hexagonal-style v-belts. The following tables show standard dimensions for keys and their grooves. The usage of these tolerances is advised for economic reasons. Those standards are also summarized in coupling manufacturers’ catalogs. Sizes of shafting from 3 to 5 inches in diameter may be either cold-rolled or turned, more frequently the latter, and all larger sizes of shafting must be turned because cold-rolled shafting is not available in diameters larger than 5 inches. This produces a high strength-to-weight ratio advantageous to fractional. 1. 19-1997 ; Keyway Stresses for Non-metallic Gears and Shafts Formulas and Calculator; Shaft (Arbor) Keyway Dimensionl Data - ANSI/ASME B94. February 29, 2012. 053 0. For a worn keyway shaft use our well stocked Interference fit range. Keyway additional modification is available for both single. 1-1967 or JIS B 1301-1996 specify sizes and tolerances of the keys and keyways. 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. Knurl. Size Shaft Dia. 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. All dimensions in inches. Metric - 2mm - 50mm; Imperial - 3/32" - 2"Woodruff Keys. We can provide keyed shafts in any length up to 20 foot. 4375. All keyed Shafting is guaranteed to fit on a bearing, and the ends can be. Blair 7/8" ROTO Cutter (BLR-11340). These are standard metric-sized reamers. †. Parallel and taper keys; Part 2 Specification for metric keys and keyways. shaft diameter u. the depth at the side, but in the metric system the keyway is dimensioned by the width and the depth measured from the raduis of the shaft to the center of the keyway. pdf), Text File (. 025: 2: 0 -0. 000 on the width and ends of the keyway, +0. In stock and ready to ship. Standard Calculator Bore Size. Review of Australian Standards. 21. Unless otherwise specified, the shaft keyway is assumed to be standard. Bushings rest inside the arbor hole of your workpiece and act as guides to ensure rigid and accurate keyway cutting. Fractional inch and metric are measurement systems used to express the size of items that have standard trade sizes. Keys and keyways secure the hub and shaft to prevent relative movement between a power transmitting shaft and an attached component. Steel key stock is an economical choice with good strength. 628 2. 1. Keys are tapered along their length. width tol. ANSI B17. metric keyways, metric bores with inch keyways, metric bores with metric keyways, or shaft keyseat tolerances. A common standard available from the Mechanical Power Transmission Association is. British ISO Metric Screw Threads Designations. thck Nom Free Normal Close/Int - - - -. The work of preparing International Standards. The keys and keyways followed the recommendations of ISO R773:1969 and shaft tolerances followed ISO R775:1969. S. $. All dimensions are in inches. Nearly every shaft diameter has a corresponding standard keyway width and depth – this calculator helps you find it. ANSI Sprocket Standard Keyway & Setscrews. 1Nominal values are given. 5. 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. 095 . B18. ANSI Woodruff Keys. - Series EL couplings supplied with clearance fit bores with set screws. The following is summarized from the American National Standard Keys and Keyways for Milling Cutters and Arbors ANSI/ASME B94. Japanese Industrial Standard (JIS) Hex Fasteners. Buy. Browse our wide collection of high performance keyway broach sets for sale today. 8mm 1. Gear G is positively located on shaft S by Woodruff key N . 093 / . We are also fully equipped to custom manufacture any Special Keyway Broach orders not listed in our catalog. Gear Products and Suppliers | Gear Knowledge Menu. 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. keyways /keys dimension in accordance with BS 4235-1:1972: Specification for metric keys and. For instance, a "1/4 x 1/8" keyway has two sidewalls that are1/8 inch dep, shown as "d" in figure 1. Standard External Metric Thread and Fastener Sizes M 0. ANSI Woodruff Keys. Standard metric keys keyways for metric bores with one keyKeys imperial machine table ansi parallel asme class key standard fit Keyway metric key iso dimensions standard keyways keys r773 pdf bores shaft hub depth diameter standards engineering table edge widthTable 11-1 key size vs. Use the middle of the shaft with bearings and other round-bore components. Home; Metric Keyways Index page; Parallel Keys and keyway Dimensions; Parallel Keys and keyway Dimensions to BS 4235-1:1972 KeyWay & Key Dimensions. BARR. Keyway Width. BRITISH Standard CONFIRMED JULY 1986 BS 4235-1: 1972 Specification for Metric keys and keyways -- Part 1: Parallel and taper keys.