360 Minimum 2. The keys and keyways followed the recommendations of ISO R773:1969 and shaft RoyMech Resources Keyways Taper Metric Key and Keyway Dimensions These Pages include various standards. ANSI B17. 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. ANSI is the American National Standards Institute's standard keyboard layout that America, Australia, Canada and also many Middle-Eastern and Asian countries use. Keyway Size Chart - Farrell BearingsStandard Calculator Bore Size. The differences are highlighted in red in the images below. Use individual keyway broaches in a variety of arbor hole sizes. Bore Keyway Fillet Key (D) Tol. Use them to connect gears and other components with tapered keyways to shafts. The height of inch keys decreases by 1/8" for every 12" of length. Keyway Width. Carbide Staggered-Tooth Keyseat End Mills. 250 - 8. 0 2. pdf Key sizeKeyway metric key iso dimensions standard keyways r773 keys pdf bores shaft hub depth diameter standards engineering table edge width. Width Depth Radius SizeProduct data for lock nuts requiring a keyway. Note the following points concerning the customer’s solid shaft:Machine keys play a vital role in many mechanical systems. Standard Keyways Southeastern Shafting Mfg Inc in New. Woodruff keys work well near shaft shoulders, where a standard open keyway would create too much stress. Metric Standard Parallel Keyway and Key Sizes Shaft Diameter (mm) Keyway (mm) Key (mm)*. Standard Keyways: (Used on all of our shafting) “Plain” Shafting available on all Steel grades. Metric Key Keyway Dimensions Engineering Hardware Design Data ISO Hardware Specifications Table Metric Key Keyway Dimensions Per ISO/R773 - Js9 Width. To confirm the status of any standard, identify the replacement standard if it is obsolete and/or purchase the standard please use. 1250 0. Taper per Ft. K80 sprocket old type B semi F series with machined shaft holes (New JIS key) FBN60B finished bore sprocket. Keyway Width. This is a +/- band clearance;. 3mm 5mm 5mm 5mm 5mm 6mm 6mm 6mm 8mm 8mm 22mm 24mm 16mm 17mm 19mm 20mm 25mm Keyway Width (w) 10mm 3mm 3mm 1. - Series EL couplings supplied with clearance fit bores with set screws. 3/8 . Review of Australian Standards. 5 1. TECHNICAL DATA TOLERANCES OF REGULARLY USED HOLE FITS 1999. Industry standards for key sizes in various bores exist for both the English and Metric systems. 350 Maximum 2. edu. length, 136700. Key Type. 3. We also stock a variety of keyway. It is also possible to become a BSI member and obtain copies of the Standards at much reduced prices. 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. Specifying Metric Keyways Dimensioning and specifying Metric keys and keyways varies significantly from the English system. Minimum keyseat width is that figure. . 010 / -. 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. Metric thread, 5H: ISO 965-3 Axial run-out locating face/thread: 0,02 to 0,06 mm max. Keyways Index BS 46 Keys and keyway Dimensions-Parallel Rectangular Ref Standard . Keys are tapered along their length. Dimensions shown are in Inches, if you wish to convert to mm, please use our universal converter. They are called “keys” because they lock a component to the shaft by means of a corresponding keyway in a shaft. Standard Metric Keys Keyways for Metric Bores with One Key; Keyway Cutter Hole Keyway Dimensional. Keyway Bore (inches) Reference Height (d) 1. This British Standard is the first of a series for metric keys and keyways and has been prepared. Keyway Width. 22. 2 Normative references. British Standard :BS 46 Part 1 : 1958 Keys and keyways and taper pins. 14mm X 9mm Rectangle Plated Key Steel x 12'' Long. 000 / +0. JIS B1180-8. Keyway Depth. See ANSI/AGMA 9112--A04 for metric bores with metric keyways. It is also possible to become a. 025: 2: 0 -0. 1 2. 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. in shape, and not square as in the English system. Interference Fit Bore Tol. A common standard available from the Mechanical Power Transmission Association is. Read more…. As with all functions of the Machinist's Calculator, linear values can be converted between inch and millimeters, including the x,y. Bore and Keyway Tolerance Table. Keyway misumiKey and keyway dimensions. The following tables list the standard keyway widths and depth for each size bore and shaft. 46 : Part 1 : 1958. These metric 316 stainless steel set screws have excellent chemical resistance and can be used in saltwater environments. Key strength and steel analysis entering into the makeup of stock for keys is not within the. 5020 2. Cutting Tools. 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. In AGMA 9112-B15 the “measurement of bores” section was moved from an annex to. Standards by the ISO Council. 002. = 1. TruKey® Shafting from Keystone is designed to provide the straightest, most accurate keyed shafting, in the industry. 11, Forged Steel Fittings, Socket-Welding and Threaded;Unfortunately, misaligned keys and keyways can result in mechanical failures. Consent to Cookies & Data processing. The breadth and depth of our products help solve the industry’s toughest machining challenges. Includes Tapping Drill Sizes for Thread Cutting Taps 17 Inches Tall x 11 Inches Wide when folded out. 1. [3/31/23] Straight Rotary Shafts are available in 1045 Carbon Steel or Equivalent and 304 Stainless Steeland 4137 Alloy Steel or Equivalent, with the following options for Surface Treatment : Black Oxide, and Electroless Nickel Plating or No. Other inch and metric sizes are readily available. Key KeyWay. Balance the assembly by adding balancing clay to the workpiece. However, since the corner of the keyway is normally chamfered, it is difficult to accurately measure a keyway’s depth during manufacture. 375 / . 2500 0. Specification for metric keys and keyways – Parallel and taper keys BS 4235-1:1972; Matching the woodruff key to the shaft diameter is also specified in DIN 6888Allowance must be made for keyway and setscrews . keyways available upon request. Table 1 details the appropriate key slot and key sizes for various metric bores. Generally, there are two classes of stock available for sunk keys, mainly parallel keys. 19-1997 ; Keyway Stresses for Non-metallic Gears and Shafts Formulas and Calculator; Shaft (Arbor) Keyway Dimensionl Data - ANSI/ASME B94. 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″. Shaft (Arbor) Keyway Dimension Size Data -. 2: Tolerances: KM/KML Metric thread, 5H: ISO 965-3 Axial run-out locating face/thread: 0,02 to 0,06 mm max. 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. Imperial Standard Bore and Keyway Info Service Manuals. 0005mm). BRITISH Standard CONFIRMED JULY 1986 BS 4235-1: 1972 Specification for Metric keys and keyways -- Part 1: Parallel and taper keys. Has anyone got a link to one ? Thanks Roger . 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. 010 inch, max is provided for offset (due to parallel displacement of keyseat centerline from centerline of shaft or bore) of keyseats in shaft. Bushings for smaller arbor holes are collared for easier handling. ANSI-B17. 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. 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. 000 on the width and ends of the keyway, +0. 625 / . 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. 010 Height (d) (t) - DIM Keyway Width (w) AGMA 9002-A86 Inch Bore and ANSI B17. The keys are square or rectangular. 8. About Us. 250 Internal Retaining Snap Ring Sizes and Groove Design Chart; Metric Tapered Retaining Snap Rings Size Chart Metric size retaining snap rings per. Ultimate tensile strength 580MPa, Yield stress approx 300 MPa. 010 0. Industry standards for key sizes in various bores exist for both English and Metric systems. Figure: Reference graphic for dimensionsMetric Keyway Sizes. 3mm 2. 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. 000 inches on width. Metric Key & Keyway Dimensions Per ISO/R773 – P9 Width Tolerance . 2-1967 (R1998) - Engineers Edge. Pull-Type Keyway Broaches . 093 / . , depending on the lock nut size Mounting slots according to DIN 981 HM/HME and HM . They conform to ANSI B17. Parallel keysGates belts, hoses, and applications: standard & non-standard shaft key Metric keyway sizes. 4 and round result to two decimal places. The IEC 72 defines motor frame size standards for regions that use SI units. 2-1967. 000 for all standard keyways BORE, KEYWAY & SET SCREW INFORMATION MECHANICAL P. They have an alternating right- and left-hand tooth style for removing more material at high speeds than straight-tooth keyseat cutters. The key and key seat cross section are ISO standardized. Tolerances and fits comply with, or are within, AGMA 9002-A86 standard (Class 1 clearance fit). I've selected a shear strength = S s = 200 MPa, and a compressive strength = S c = 130 MPa. 0mm to 26. Keyways Index BS 46 Square Keys and keyway Dimensions Ref. 020 0. Jorge. 3/32 X 3/64. Joined Dec 20, 2000 Location Bremerton WA USA. . In stock and ready to ship. Choose from our selection of metric keys in a wide. The keys and keyways followed the recommendations of ISO R773:1969 and shaftRoyMech Resources Keyways Taper Metric Key and Keyway Dimensions These Pages include various standards. ; Image credit: Carlisle Power Transmission. 25 - M 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. Keyways for Milling Cutters and Arbors. Pull-Type Keyway Broaches . 3mm 5mm 5mm 5mm 5mm 6mm 6mm 6mm 8mm 8mm 22mm 24mm 16mm 17mm 19mm 20mm 25mm Keyway Width (w) 10mm 3mm 3mm 1. 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. 03 Bore Dia. Loose running fit for wide commercial tolerances or allowances on. TEL : +81 48 254 1744. In addition, set screw holes and keyways may be added as needed. Side View. 053 0. 0010. Bushings rest inside the arbor hole of your workpiece and act as guides to ensure rigid and accurate keyway cutting. Standard External Metric. All the standards recognize this and specify tolerances for keyway so one could have two to four classes of fits. Keyway dimensionsMetric key keyway dimensions per iso/rtt3 js9 width Inch keyway chart ansi agma shaft key width b4 dimensions diameter nominal reference motor electricKeys keyway metric standard keyways sizes engineering shaft key parallel square fit fits mechanical data rectangular british limits figure. Choose from our selection of metric shafts, including over 5,200 products in a wide range of styles and sizes. 5. com. 020 0. 2. ANSI Sprocket Standard Keyway & Setscrews. 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. We use keyed shafts in the gear and shaft assemblies in general. All internal calculations are done in metric millimeters to a precision of up to half a micron (0. The following Engineering calculator will show the plus and minus tolerance for the specific ISO 286 Shaft tolerance data. The usage of these tolerances is advised for economic reasons. Machine the center of these sprockets to fit the exact dimensions of your shaft. Designed to meet ISO 606 and DIN 8187 international dimensional standards, these sprockets are for use with compatible ISO and DIN. Figure 2 Keyway Sizes. Metric Standard Parallel Keyway and Key Sizes Shaft Diameter (mm) Keyway (mm) Key (mm)* From To Width (W) Depth (h) Width (W. Metric keyways are dimensioned by width and depth as measured from the radius of the shaft to the center of the keyway. 1 offer from $178. 125. keyways /keys dimension in accordance with BS 4235-1:1972: Specification for. 000 +. All keyed Shafting is guaranteed to fit on a bearing, and the ends can be. Standard tolerancing on stainless keys and keyways. 437 / . 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. 5000 2. BS 4235-1:1972: Specification for metric keys and keyways - Parallel and taper keys. 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. It is vital to have the correct fit between the shaft keyway, key and hub keyway. Keyway Width. Tapered Shaft End and Mating Hole with Slotted Nuts Design Data Dimensions Per. Style A - Flat sprocket with no hub extension either side . Metric bores are defined in ISO standards while English bores are defined in AGMA and ANSI standards. Gear Products and Suppliers | Gear Knowledge Menu. (inch. To confirm the status of any standard, identify the replacement standard if it is obsolete and/or purchase the standard please use. High Speed Steel, Cobalt, Cutting Tools, Broach, Steel Cutting Broach. 1 Scope. 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. metric keyways, metric bores with inch keyways, metric bores with metric keyways, or shaft keyseat tolerances. For example, an ANSI 202 measures 1/16 x 1/4, while ANSI 1012 measures 5/16 x 1 1/2. Keyway Cutter Hole Keyway Dimensional Data - ANSI/ASME B94. Related. 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. 2 Normative references . Metric bores are defined in ISO standards while English bores are defined in AGMA and ANSI standards. Unless stated otherwise, hub torque and horsepower ratings assume a SOX (NBR) rubber spider is being used. Index the adapter 180 degrees on rotor shaft (see Figure 6-22 C). 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. In addition to the standard sprockets, special sprockets may be available in the same styles . Coping with foreign bore and keyway standards Machine Design. * 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). 5 +. noahb110. Email. 3mm 2. Standard keyways provide added torque capacity and fixed shaft phasing. 8 10 12 17 22 30 38 44 50 58 65. British Standard :BS 46 Part 1 : 1958 Keys and keyways and taper pins. ANSI B27. 0mm to 26. dhanishl. e Dimension “d” provides an effective method of specifying and determining the nominal keyway depth. Mechanical Power Transmission Association 6724 Lone Oak Blvd. The collar rests on top of the workpiece rather than being supported from below. Gear G is positively located on shaft S by Woodruff key N . Standard Metric Keys Keyways for Metric Engineers Edge. 6 : 621. Many keyways are milled directly into a shaft or broached into the. A. Recommendations for key size, length and keyway depth as a function of shaft diameter are provided in ASME Standards B17. 1N, 2N, 3N and 4N are designed to be a non-driven support end. 3 Terms and definitions. 010 0. The schematic representation of the fit is also drawn by tolerance calculator. Introduction. Recommended uniform relationship between shaft diameter and key sizes for parallel and taper keys. To confirm the status of any standard, identify the replacement standard if it is obsolete and/or purchase the standard please use. Max. 000 +. 2) Dimension h of the taper key names the largest height of the key, and dimension t z. NA0139. 3125 0. Standard and metric keyway broachesTable aii-12. Keyway Js9 Tolerance Chart 173 255 205 43. This standard makes reference to the following British Standards: BS 46, Keys and keyways and taper pins. 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. Specifying Metric Keyways Dimensioning and specifying Metric keys and keyways varies significantly from the English system. The sunk keys are of the following types : 1. C, Cotter Pin Hole has centerline. The following standard containprovisions which, through reference in this text, constitute provisions of s By correctly interpreting which standard a PT component was made to, you can solve replacement specification problems and eliminate expensive special orders RoyMech Resources Keyways Taper Metric Key and Keyway Dimensions These Pages include various standards. Email. , depending on the lock nut. Minimum keyseat width is that figure. Choose from our selection of metric shafts, including over 5,200 products in a wide range of styles and sizes. The use of standard, “off the shelf” items can significantly reduce both inventories and. The standardization of keys and keyways was first considered by the Engineering Standards Committee (the original name and form of the present B. We stock pre keyed shafting in many diameters, including metric diameters, with standard keyways. High Speed Steel, Cobalt, Cutting Tools, Broach, Steel Cutting Broach. 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. pdf), Text File (. These are standard metric-sized reamers. Standard Pin Taper The standard pin taper is a self holding type taper. 8mm 1. ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). dimensioned by its width and depth on the shaft keyway sides. KEYSTEEL - METRIC RECTANGLE 12'' PLATED - 14MM X 9MM. Rectangular sunk key. s. keyways available upon request. Metric External Table Chart Thread Designations Sizes M 1. 438 . British Standard :BS 46. Also, as. ). BROWSE CATALOG. Use them to connect gears and other components with tapered keyways to shafts. Although similar in principle to BS 46-1, for inch. The parallel keyway milling process starts by cutting a simple keyway slot, all the way through the axial diameter of the part. The inclusion of dimensional data in this Standard is not intended to imply that all products DE- described are stock production items. , Naples, FL 34109. Also see Table of Hole Tolerances per. Use them to connect gears and other components with tapered keyways to shafts. The inch and metric dimensions here correspond to common values. 3 mm. The following standard containprovisions which, through reference in this text, constitute provisions of sCoping with foreign bore and keyway standards | Machine Design. Keystock is available in both inch and metric sizes. 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. Double bearing supports use a Type 3N, 3L and 3K. Relevant British Standards. The bore diameters listed in the "Keyway Additional Modification Applicable Bore List" in the table below are available for the service. Accu-Flange ™ mounting collars are machinable flange collars that feature a standard keyway with three through holes and three tapped holes and an integral clamp design and relief groove mechanism. Keys. COMPONENTS PowerDrive LLC Bore Tolerance 0 to 2 2 to 3 3 to 4 Over 4 +. 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. Shaft standard key sizes rectangular gates keys. . 1-1967 or JIS B 1301-1996 specify sizes and tolerances of the keys and keyways. Keysteel Tolerances & Standards Keyway Standards – IMPERIAL Keyway Standards – METRIC Keysteel Merchandiser Engineer’s Chalk Ordering Information 1. See dimensions W and h in Figure 1. Keyway Depth. Fits and tolerance calculator for shaft and hole tolerance calculation according to ISO 286-1 and ANSI B4. Address. Keyway dimensionsMetric key keyway dimensions per iso/rtt3 js9 width Inch keyway chart ansi agma shaft key width b4 dimensions diameter nominal reference motor electricKeys keyway metric standard keyways sizes engineering shaft key parallel square fit fits mechanical data rectangular british limits figure. Woodruff keys work well near shaft shoulders and on tapered shafts. They are semi-circular, and fit. T Metric trapezoidal thread, 7H: ISO 2903 Keys keyway metric standard keyways sizes engineering shaft key parallel square fits fit mechanical data rectangular british limits figure. In order to have the shaft key function correctly, both the shaft and rotating elements ( pulley, coupling and gear) have to have a keyway and keyseat. Standard Metric Bores And Keyways DATA SHEET DS103 REV. 3) Keyway fillet radius to be specified by customer. 6 mm. ANSI B17. PFEIFER INDUSTRIES, LLC. Keys and keyways BS 46 Part 1 : 1958 Square Keys and keyway Dimensions all dimensions in inchesPage Count: 34. boeray 164pcs Woodruff Key Assortment Metric Set 17 Sizes Carbon Steel Woodruff-key Kit Woodruff Key-Crankshaft. BSI Shop. ISO 286 Chart Calculator. keyway and corresponding key sizes for English shafts are listed below in Table 1. ) Imperial Sizes (inch. keyways & keys dimension in accordance with BS 4235-1:1972: Specification for metric keys and keyways - Parallel and taper keys Rectangular Keyways Metric; WXHKey W x T2 Keyway ISO Standard — mm Snart Dlameter WI dth Groove dimensions keys DIN 6E-ga Shut 1 (With • 1972. This specification includes index tolerances for multiple keyways. They have a high helix angle and a wear-resistant coating for excellent shearing and chip removal in stainless steel and titanium. Standard pulleys are pulleys that have traditional dimensions, with one or multiple grooves, which mate with classic, small-engine, and hexagonal-style v-belts. ). But also, there are lots of kinds of other applications. For technical drawings and 3-D models, click on a part number. Contact Us. All the standards recognize this and specify tolerances for. Shallow keyway depths must exceed 2/3 of the full keyway depth of the square keys shown above. If you are in America or North America. Install these keys in a drilled and reamed hole to locate fixtures and vises on your machine table. STANDARD KEYWAY BROACHES revtool eu. See ANSI/AGMA 9112-B14 for metric bores with metric keyways. 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. This primer provides answers to frequently asked questions related to metric bores and keyways used in couplings. pdf. 312 / 2. 8 Small Head Zinc Plated; JIS B1189-10. Unique Selection. They are also often used on tapered shafts. FOREWORD. Metric key keyway shaft standard keyways falk keys bores resources industrial. ISO Tolerances for Shafts ISO 286 2 TRIBOLOGY ABC. It may be mildly magnetic. 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. The following is summarized from the American National Standard Keys and Keyways for Milling Cutters and Arbors ANSI/ASME B94. Keyways will be furnished. 4mm 1mm 1. Metric series: KM/KML, HM . Failure to do so British ISO Metric Screw Threads Designations. Key dimensions: Parallel keys are most commonly used. 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. 1 for Js9 Dimensions) Key & Keyway Dimensions – Millimeters Coupling Hub Keyway Dimensions – Inches Shaft Diameter “D” Key Size Nominal Keyway Width Hub “W. Metric sizes of key steel bar are bright drawn to minus tolerances conforming to BS4235 “parallel and taper keys”. Contact our sales office and consult our shipping policy for further details.