Choose from our selection of metric keys in a wide. Drive shaft Design, key and Keyways. For dimensions in millimeters, multiply inch values, except thread diameters, by 25. 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. For more information, contact our sales department at 906. 2. 6 - M 18. They have an alternating right- and left-hand tooth style for removing more material at high speeds than straight-tooth keyseat cutters. Metric thread, 5H: ISO 965-3 Axial run-out locating face/thread: 0,02 to 0,06 mm max. The height of metric keys decreases by 1 mm for every 100 mm of length. British Standard :BS 46 Part 1 : 1958 Keys and keyways and taper pins. Ansi Standard Keyway Sizes Pdf is available in our digital library an online access to it is set as public so you can get it. BS 46 Square Taper & Gib Head KeyWay & Key. 14mm X 9mm Rectangle Unplated Key Steel x 3. Fast and simple to use mating component to a locknut. Keyway and Key Size Dimensions W Standard Key and Keyway Sizing h T1 T r H T2 English Dimensions: Metric Dimensions: Keyway: W x T1 Key: W x T Keyway: 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. Face Width Face width is limited in its maximum dimension to allow proper. 8mm 2. Knurl. ANSI B17. 7 by 15. 5. Box 12086 Omaha, NE 68112-2086encompassing standard. Fast-Cutting Carbide Square EndMills for Stainless Steel and Titanium. All keyed Shafting is guaranteed to fit on a bearing, and the ends can be. The keyseat in a shaft for a parallel key. Chain. In addition to the standard sprockets, special sprockets may be available in the same styles . 14mm X 9mm Rectangle Plated Key Steel x 12'' Long. - inch bores with metric keyways; - metric bores with inch keyways; - metric bores with metric keyways; or - shaft keyseat tolerances. The sizes and tolerances contained in this Standard are intended for single key applications only. 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. May 13th, 2018 - Standard Metric Keys amp Keyways for Metric Bores with One Key Js9 Width Tolerance « Keyways will be furnished per ISO R773 and Js9 width tolerance unless' iet. Get In Touch. The parallel keyway milling process starts by cutting a simple keyway slot, all the way through the axial diameter of the part. Fillet radii comply with AGMA 9002-A86. The usage of these tolerances is advised for economic reasons. They conform to ANSI B17. Rather than enjoying a good book with a cup of coffee in the afternoon, insteadStandard Bore and Keyway Tolerances (Inch and mm) Keyway Bore (inches) Reference Height (d) 1. Bore and Keyway Tolerance Table. 314 . Parallel and taper keys; Part 2 Specification for metric keys and keyways. This British Standard is the first of a series for metric keys and keyways and has been prepared under the authority of the Mechanical Engineering Industry Standards Committee. It establishes: (1) the designation symbols used to define specific dimensional limits on drawings, material stock, related tools, gages, etc. Shaft keyed keyway aluminum diameter grainger length motor shafts close. The teeth are sized to fit into. 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. 350 Maximum 2. Foreword. We stock pre keyed shafting in many diameters, including metric diameters, with standard keyways. Metric Key & Keyway Dimensions Per ISO/R773 – P9 Width Tolerance . Keyway Width. Keyseat Alignment Tolerances: A tolerance of 0. Woodruff keys are an. Also see Table of Hole Tolerances per. Choose from our selection of keyway stock, including machine key stock, rounded machine keys, and. Keyway Cutter Hole Keyway Dimensional Data - ANSI/ASME B94. 4. 5 1. 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. 5000 2. Bushings for smaller arbor holes are collared for easier handling. dStandard Sprocket, Model 35A. Joined Dec 20, 2000 Location Bremerton WA USA. 1Nominal values are given. 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. 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. Keys and keyways are a very important part of shafts and power transmission. This standard presents metric dimensions, tolerances, sizes and fits for straight bores, tapered bores, keys and keyways for un-mounted industrial flexible couplings. 14mm X 6mm Rectangle Plated Key Steel x 12'' Long. Hub keyway depth is one-half the nominal height of the key and measured from the side corner. Keyway Size Chart - Farrell BearingsStandard Calculator Bore Size. The height of metric keys decreases by 1 mm for every 100 mm of length. $. 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. - Series EL couplings supplied with clearance fit bores with set screws. DIN 472 circlips agujeros. All dimensions are given in inches. Consent to Cookies & Data processing. 2-1967. a keyway and a keyseat, which is a slot and pocket in which the key fits. 5020 2. COMPONENTS PowerDrive LLC Bore Tolerance 0 to 2 2 to 3 3 to 4 Over 4 +. To confirm the status of any standard, identify the replacement standard if it is obsolete and/or purchase the standard please use. Standard pulleys are pulleys that have traditional dimensions, with one or multiple grooves, which mate with classic, small-engine, and hexagonal-style v-belts. I typically use +0. 5 +. All Types (Page 1 of 2) Metric Key & Keyway Dimensions Per ISO/R773 Js9 Width Tolerance H Key & Keyway Dimensions Millimeters Shaft Diameter D Over. Abrading & Polishing;. Shaft standard key sizes rectangular gates keys. 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. 4 and round result to two decimal places. Certified drawings of all ratings are available for construction purposes. As your Tooling Concierge, we use our expertise to. These keyless bushings convert clamping action between inner and outer tapered rings into radial pressure that locks the device to the shaft and. pdf), Text File (. Balance the assembly by adding balancing clay to the workpiece. The tolerance zone for shaft keyway width b with normal fit is ISO N9 and with close fit ISO P9. KHK-USA The key to a proper fit for keyways Selecting the proper size keyway is determined by the shaft size. Use them to connect gears and other components with tapered keyways to shafts. S. Single bearing supports use Type 1N. 0 2. 5") is omitted, it specifies coarse pitch threads. 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. Standard Metric Bores And Keyways DATA SHEET DS103 REV. Dia Width b Depth. Chain. The following is listing of those standards: Standard Description Couplings • Standard Metric Keys & Keyways for Metric Bores with One Key (Page 2 of 2) All Types Metric Key & Keyway Dimensions Per ISO/R773 – P9 Width Tolerance (See Pg. Woodruff Key Dimensions Fastener Mart, LLC Woodruff Keys dimensions and specificationsThe sizes are already designed to be able to properly carry the load with medium strength fastener (Grade 5 or equivalent) SAE J744 specifies the flanges by a letter and a bolt count. 005, -. Tolerances h11 h9 h7 and h6 as shown in Table 6 1 The above shaft tolerances are now covered in the new ANSI B32 100 2005 standardOur inch & metric Dumont keyway broaches are made of high speed steel. Bushings for smaller arbor holes are collared for easier handling. Metric standard keyway sizes_联轴器厂家-guangzhou link automation140pcs assortment 30mm keys 16mm x20mm 10mm Sae to metric conversions for hex keys chart imageFwb lengths metric. 99 #22. Dimension standards: ISO 2982-2:. 0 2. Eagle Tool Metric Keyway Chart. Metric - 2mm - 50mm; Imperial - 3/32" - 2"Woodruff Keys. Shaft and Hub Keyway and Key Sizes dpk3n3gg92jwt. 322 0. ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). Fractional Inch & Metric. 0005 / -. The following Engineering calculator will show the plus and minus tolerance for the specific ISO 286 Shaft tolerance data. 6 - M 18. Woodruff Metric key and Keyway Dimensions - Roy Mech. Module isDimensional Charts are for Metric Taper Keyways, Metric Taper Keys, Imperial Taper Keyways and Imperial Taper Keys. 010 Height (d) (t) - DIM Keyway Width (w) AGMA 9002-A86 Inch Bore and ANSI B17. 093 / . AB DE F H LO P T U V AH KEYWAY DIA. Taper metric dimensions keyway key bs 1972 keyways keys. We use keyed shafts in the gear and shaft assemblies in general. 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. Recommended ANSI Standard Keys and Keyseats Design per. ISO Standard. 8mm 1. ANSI B17. 4 mm. 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. Specification. All dimensions are given in inch units. Shaft Diameter vs Key Sizes Design Recommendations. 2-1978 standards. This produces a high strength-to-weight ratio advantageous to fractional. International Standard ISO 2491 was drawn up by Technical Committee lSO/TC 16, Keys and keyways, and circulated to the Member Bodies in August 1971. Standard Metric Keys Keyways for Metric Bores with One Key; Keyway Cutter Hole Keyway Dimensional. For example, Gear drives, Pulleys or Sprockets are connected securely using keys to the power transmitting shaft. Metric – Rectangular. 1. 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 sizes of key steel bar are bright drawn to minus tolerances conforming to BS4235 “parallel and taper keys”. MPTA. Usually the term keyseat is referred as a groove or. 4 m= ––– (2-5) P d 2. Pitch Diameter of Threads Calculator and Formula; Retaining Snap Ring Stress and Failure Formulas and CalculatorYour Special Are Our Standards. The rounded ends make it easy to slide gears, hubs, and other components into place. Contact Us. 8. bxh Radius r. Generally, there are two classes of stock available for sunk keys, mainly parallel keys. 2 metric standards . NOMINAL SHAFT DIAMETER BOTTOM OF SHAFT TO BOTTOM OF KEYWAY WIDTH REFERENCE DEPTH 0. keyway and corresponding key sizes for English shafts are listed below in Table 1. A list of standard keyway and corresponding key sizes for English shafts. The collar rests on top of the workpiece rather than being supported from below. SAE Standard. 6 Module Sizes And Standards Module m represents the size of involute gear tooth. B18. Metric standard keyway sizes_联轴器厂家-guangzhou link automation140pcs assortment 30mm keys 16mm x20mm 10mm Sae to metric conversions for hex keys chart imageFwb lengths metric. 16~0. 40SD Single/Double Sprocket. Straight Sided Spline Dimensions. imperial (pre-war) keyways diameter key shaft hub over incl w h width tol. They are semi-circular, and fit into a Keyway shaped as a circular-segment in the shaft and a rectangular slot in the mating part. 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. Mechanical Tolerance Chart Data. 062 0. British Standard Metric Keyways for Square and Rectan; gular Parallel Keys BS 4235:Part 1:1972 (1986) Sat — ey eyeay Tonimal Diameter d Width,b Depth Radius r pw | 3% Free Fit Nonal Fit lose Fi Shalt, Tab over | ‘and | 2% | pom, [Stak | Rab] Stat] Ba | Shaman. Keyway-and-Key-Size-Dimensions. 0mm to 26. Usual IEC sizes. The hub keyway is dimensioned by its width and depth on the shaft – keyway sides. It is also possible to become a. Designed to meet ISO 606 and DIN 8187 international dimensional standards, these sprockets are for use with compatible ISO and DIN roller chain. Specification. dimensioned by its width and depth on the shaft keyway sides. Because of the intricate craftsmanship involved in fabricating a broach tool, this often involves weeks of production. Couplings can be additionally modified with new JIS keyways based on JIS B 1301. Keys are made of steel. 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. Cut it to length to create the machine key you need. Woodruff keys work well near shaft shoulders, where a standard open keyway would create too much stress. Parallel and taper keys and keyways for shafts of 6 mm to 500 mm diameter. Couplings • Standard Metric Keys & Keyways for Metric Bores with One Key (Page 2 of 2) All Types . 14. 010 0. 3/8. ). TECHNICAL DATA TOLERANCES OF REGULARLY USED HOLE FITS 1999. 14–15 Pull Type Production Keyway Broaches A full line of Industry Standard 500 and 600 Series and 5M and 6M Series Keyway Broaches are available. com. Cut keys to custom lengths. 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. KEYWAY: A rectangular opening formed by matching rectangular slots cut axially (lengthwise) along both the coupling bore and shaft. Metric keyways are dimensioned by width and depth as measured from the radius of the. ANSI woodruff size charts express measurements in inches and nominal key sizes with higher numbers corresponding to bigger keys. They have an alternating right- and left-hand tooth style for removing more material at high speeds than straight-tooth keyseat cutters. All dimensions are given in inch units. All internal calculations are done in metric millimeters to a precision of up to half a micron (0. KEYWAY. BS 4235-1:1972: Specification for metric keys and keyways - Parallel and taper keys BS 4235-2:1977, ISO 3912-1977: Specification for metric keys and keyways - Woodruff keys and keyways BS 5686:1986, ISO 14-1982: Specification for straight-sided splines for cylindrical shafts: metric nominal dimensions, tolerances and. net. 2) Dimension h of the taper key names the largest height of the key, and dimension t z. Shaft keyway dimensions and tolerances were given in ISO R773:1969. 13. 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. A gear or other component with a woodruff keyway is then. Thin parallel keys and their corresponding keyways (Dimensions in millimetres) Thin taper keys with or without gib head and their corresponding keyways (Dimensions in. As your Tooling Concierge, we use our expertise to. 1250 0. High Speed Steel, Cobalt, Cutting Tools, Broach, Steel Cutting Broach. They are also often used on tapered shafts. All dimensions in mm. 1 2. This is the most popular series of metric washers that is coupled with KM series metric locknuts. Contact our sales office and consult our shipping policy for further details. Description. 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. 3 Terms and definitions. The profile of a straight sided spline is defined by. 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 —. 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. Keyway sizes: Out of stock: $297. 25: 2 Relevant British Standards. 002, -. Standard Metric Roller Chain; Attachment Roller Chain. 2-6 Antimony St, Carole Park QLD 4300, Australia Phone +61 7 3271 5424. Mount the adapter to the workpiece shaft using a full key in the shaft keyway and fill the half-key void in the opposite side of the adapter with a half-key (see Figure 6-22 B). 2: Tolerances: KM/KML Metric thread, 5H: ISO 965-3 Axial run-out locating face/thread: 0,02 to 0,06 mm max. T Metric trapezoidal thread, 7H: ISO 2903 Use them to connect gears and other components with tapered keyways to shafts. 11, Forged Steel Fittings, Socket-Welding and Threaded;Unfortunately, misaligned keys and keyways can result in mechanical failures. [email protected] . 020 0. 800-982-3141. Review of Australian Standards. , Naples, FL 34109. Metric key keyway shaft standard keyways falk keys bores resources industrial. donnu. They have a high helix angle and a wear-resistant coating for excellent shearing and chip removal in stainless steel and titanium. Standard Metric Keys & Keyways. Keyways will be furnished. 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. Keystock is available in both inch and metric sizes. 3mm 2. Also known as half moon keys. 020 0. Displaced 90° From Keyway Center. Since individual tolerances aren’t provided, the designer must ensure that products made to the drawings. ANSI B17. Woodruff keys work well near shaft shoulders and on tapered shafts. Keyway (mm) Key (mm)* From To Width (W) Depth (h) Width (W) Depth (T) 6 8 2 1 2 2 9 10 3 1 3 3 11. Standard Keyways and Setscrews Diameter of Shaft Keyway Width × Depth Setscrew Diameter of Shaft Keyway Width × Depth Setscrew 1/2 - 9/16 1/8 × 1/16 10-24 2 5/16 - 2 3/4 5/8 × 5/16 5/8 *Keyway Broaches. Industry standards for key sizes in various bores exist for both English and Metric systems. 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. 1890 0. E. Variable spacing between the flutes reduces vibration, allowing these end mills to provide fast cuts, smooth finishes, and long tool life. We offer the most common American Standard and Metric Pull-Type Keyway Broaches, available either as Industry Standard 500 Series with threaded pull end or 600 Series with notched pull end. Part 1. In stock and ready to ship. Figure 2 Keyway Sizes. 2 Normative references. Shaft keyseat dimensions and tolerances were. Rather than enjoying a good book with a cup of tea in the afternoon, instead they juggled with some malicious virus inside their computer. rad 10 12 4 4 2. Table 1 details the appropriate key slot and key sizes for various metric bores. Shaft with Two Keyways Torque Applied Deformation and Stress Equations and Calculator. KHK produces a wide range of standard & special spur gears. pdf. 57 inch; Coupling Design: One Piece Clamp; Design Units: MetricPFEIFER INDUSTRIES, LLC. ) Metric Sizes (mm) PART NO. 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. edu. 8. = 1. Standard L Type coupling hub materials are either sintered iron (L035-L190) or cast iron (L225-L276). Imperial systems use inches and feet, and these are the standard units. Keyway Width. Over To (Incl. 3mm 2. Referencing Figure 1, the Metric key size is W x T. Rectangular sunk key. Clearance Fit Bore Tol. 824. Lidhujnk HSS Metric Keyway Broach Set, 22pcs Keyway Broach Collared Bushing Shim Set Metric Size Metal Processing Tool 4/5/6/8mm. KEYWAY AND KEY SLOT DIMENSIONS METRIC. 0mm Metric - Standard Sizes. NA0139. ANSI Hardware Deign and Engineering Data. Imperial sizes of key steel bar are bright drawn to plus tolerances conforming to BS46 “keys and keyways”. British Standard Chain was developed before American-styled chain, but was limited in its. 000/-0. The following tables show standard dimensions for keys and their grooves. The taper ratio of standard pin taper is 1:50 in metric and 1:48 in British. 025: 2: 0 -0. Typical steels for locknuts are: AISI, C1015, C1018, C1020, C1025, C1035, C1117, C1118, C1212, C1213, and C1215. To keep abreast of progress in industry, Australian Standards are subject to peri-odic review and are kept up–to–date by the issue of amendments or new editions as necessary. The key length should be less than about 1. But also, there are lots of kinds of other applications. S. 376 . Metric Super-Corrosion-Resistant 316 Stainless Steel Cup-Point Set Screws. The ISO sprockets have large pitches that are measured in sixteenths of an inch, but are expressed in metric units. ; Lowenherz or Löwenherz Thread Size Table; Excel Spreadheet Design Calculator per. The usual proportions of this key are : Width of key, w = d / 4 ; and thickness of key, t = 2. Therefore, this standard does not intend to replace any existing metric standards, but to define what is preferred. TruKey® Shafting from Keystone is designed to provide the straightest, most accurate keyed shafting, in the industry. --keyway dimensions Keyway sizing chartDimensions standard keyseat keyway shaft shafts diameter nominal. In the Metric system it is common practice to specify the key size. 0. 12 mm. 4940. KEYWAY AND KEY SLOT DIMENSIONS METRIC. 3mm 2. Figure 2 Keyway Sizes. The L Type coupling consists of two standard L Type hubs and one spider. • Keys DIN 6885 → Page 842. 2 Normative references . Interference Fit Bore Tol. TAPER KEYWAY DIMENSIONS - METRIC - BS 4235-1: 1972. Thru. When one end wears out, switch to the opposite end for two times the life of a standard carbide end mill. They are called “keys” because they lock a component to the shaft by means of a corresponding keyway in a shaft. Displaced 90° From Keyway Center. 2 Normative references. 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. Key-Depth Tolerance is +. 010 inch, max is provided for offset (due to parallel displacement of keyseat centerline from centerline of shaft or bore) of keyseats in shaft. Buy. Durable. Keystock. 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 7 1/2 9 square keys preferred for shaft diameters above this line: Shaft keys are made of varied types of materials and also come in different shapes and sizes. Standard . Tolerances and fits comply with, or are within, AGMA 9002-A86 standard (Class 1 clearance fit). Taper metric dimensions keyway key bs 1972 keyways keys. PFEIFER INDUSTRIES, LLC. 21. 1 Scope. See ANSI/AGMA 9112-B14 for metric bores with metric keyways. A description is not available for this item. Those standards are also summarized in coupling manufacturers’ catalogs. Metric Standard Parallel Keyway and Key Sizes Shaft Diameter (mm). Double bearing supports use a Type 3N, 3L and 3K. 542. 6 - M 18. Keyway metricFalk_metric_key_keyway. Key Length DIN 6885. com. Recommendations for key size, length and keyway depth as a function of shaft diameter are provided in ASME Standards B17. 062 0. Keyway Width. Standards such as BS 46, ANSI B17. Specifications Met. Technical InformationBrowse 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,CADThis standard is incorporated in the American Boat and Yacht Council (A. Hole-Mount Fixture Keys. 3. Keyway Depth (Normally 1/2 of width). For square and rectangular parallel keys three classes of fit, 'free', 'normal' and 'close', are foreseen. Use them to round sharp corners on the edge of your workpiece. Couplings can be additionally modified with new JIS keyways based on JIS B 1301. Fractional Inch; Metric; Keyway Width. We welcome export enquiries for key steel. 5 +.