To order interchangeable core cylinders with locksets, specify by cylinder or core model number. Referencing Figure 1, the keyway dimension is W x T1. Straight-sided splines for cylindrical shafts with internal centering — Dimensions, tolerances and verification. Metric module, side fit. 8mm 2. 100% 100% found this document useful, Mark this document as useful. Sign-In Create Account. i. clearance fit bores with set screws. Keyways: Falcon “G” keyway standard on standard cylinder. D. Keyshaft keyed shaft, diameter 1 7/16 in, keyway 3/8 in x 3/16 inKeyway parallel keyways metric t2 wxh bores Keyway keyed keyways boresGates belts, hoses, and applications: standard & non-standard shaft key. 1 Square Keyway Tolerances. 3 12 8. 1. British Standard :BS 46 Part 1 : 1958 Keys and keyways and taper pins. Since they fit more loosely than standard keys, these undersized keys are best for uneven keyways or when you need to disassemble parts. 35 9. Everest 29 S145 is the default keyway for new master key systems. Competitive keyways: AB, BB, CB, DB, EB, FB, GB, HB, JB, KB, LB, MB, QB Arrow SFIC Lock Cylinders 6025 Cinderlane Parkway • Orlando FL 32810 • 407. Keyways DATA SHEET DS103 REV. All sizes are in inch units. 800-543-3658. Max. Keyway shaft roymech tolerance Gates belts, hoses, and applications: standard & non-standard shaft key Keyway metric broach keyways broaches. 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 DimensionsLimit your options by eliminating the ones that don't even look anything close to it. Keyway toleranceKeyway-and-key-size-dimensions. 1, the Metric key size is W x T. Created Date:2. Drive shaft Design, key and Keyways. keyways (see page 18). x 1 3/4" long. 4 Broaches and 9 Bushings = 18 Keyway combinations. Provided for SARGENT “C” family as. 196 Vulcan Street Buffalo, NY 14207. Quantity Trim Lock Cylinder Pins Keyway Keyset Hand Thickness Finish 50 AUR 8805FL K100 6 XX AA1 RHR 1-3/4" 626 Collar - 1765 furnished standard when ordered with lockset. We are here for you 24 hours a day, seven days a week. 563 3 . variety of keyways to pick and choose from. The last two digits give the nominal diameter B in eighths of an inch and the digits preceding the last two give the nominal width W in thirty. This key stock is undersized, so keys will fit slightly more loosely than standard keys and are best for inconsistent keyways. Keyway metric key iso dimensions standard keyways keys r773 pdf bores shaft hub. 8mm 3. Click here to purchase the full version from the ANSI store. Shaft Diameter Key Size Keyway Width Keyway Depth Keyway Radius "D" Nominal Hub "W " Hub "T2" "R" Over Thru Width "W" Height "H" Nominal Min. 004/0. 40mm). 3 6. 0 m) depending on concrete properties,Allowance must be made for keyway and setscrews . LOCK. Chart shows how XC key is fully compatible with non-XC cylinders Master Sections Key Blank Key Sections Plug Key Sections SARGENT Key Blanks Master Key Section (6 Pin) Day or Change Key (6 Pin) Catalog Number 11-X6270 Catalog Number. 1/2” (0. Please check motor drawing for actual dimensions. We would like to show you a description here but the site won’t allow us. Key. Keyway Dimensions Chart. Keyways: Falcon “G” keyway standard on standard ⁄ 4. 53 2. 000 for all standard keyways BORE, KEYWAY & SET SCREW INFORMATION MECHANICAL P. ). Drawings represent standard TEFC general purpose motors Refer Data Section 502 for various models, OPEN or TEFC *D im e ns oa rf c ly. 00375). 6 6. 469 Minimum 3. The final consideration with sizing is the thread size and location of the set screw. 813 3 . W = d/4[clarification needed] H = 2d/3[clarification needed] where. 3 Keyseating - The operation of prociucing key- seats. ARROW-Pointe-IC-Core-Key-Systems-Catalog 1 Arrow Lock. Keys and keyways, splines. com. That little gap, as you can see, you know, some of them are similar, but like this one here, it starts to change a little bit. Metric Key Keyway Dimensions. For example, an ANSI 202 measures 1/16 x 1/4, while ANSI 1012 measures 5/16 x 1 1/2. 2. 0mm Metric - Standard Sizes. . This was an innovative and unique application ofDrill and tap sizes standard, hand tool lubricantDrill pilot point chart sizes hole bit screw select lag drilling tek pdf printable squarespace different points several guide use Drill tap chart sizes bit printable charts pdf holes templatelab kb selective workshop toolsFree 13+ sample tap drill chart templates in pdf. pfeifer. 8mm 2. 18. 1-1943 Standard. 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. Keyway Chart. Standard Metric Keys & Keyways for Metric Bores with One Key • Couplings (Page 2 of 2) All Types 427-140 Reo a 21 (P eso) oola e el 11 pesees 2 Telepoe 22 a 22 eoo Key & Keyway Dimensions – Millimeters Coupling Hub Keyway Dimensions – Inches Shaft Diameter “D” Key Size Nominal Keyway Width Hub “W” Keyway Depth Hub “T2” 3. 003, -. For Hub Keyway Height. 005). Shaft standard key sizes table non bushing bore keys qd shallow range gates includes specific each alsoKeyway sizing chart Keyway metric key iso dimensions standard keyways r773 keys pdf bores shaft hub depth diameter standards engineering table edge widthMetric. Email. Table 2-1 Standard Values of Module unit: mm Series 3 0. This is a standard form of key and may be either of rectangular or square cross-section as shown in Fig. Subtotal: $4. 0 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. A letter of authorization from the end user is required to process orders for Restriced keys, blanks, and cylinders. Be sure the tapered cone surfaces of the bushing and the inside of the driven product are clean and free of anti-seize lubricants. Std = S tandard keyway for the bore size Ns = N on-standard keyway R =R adius available for this size. 6 - M 18 ANSI Woodruff KeysStandard and metric keyway broachesTable aii-12. Currently it appears that L4/a1011 is the standard keyway offered on NEW russwin hardware today. Page 1 of 3. Not the drawing, just four dimensions. only, “C” series keyway supplied standard, unless otherwise specified . Reliable. 6 : 621. Because this key stock is slightly larger than standard key stock, keys will fit tightly in. The dimension from the top of the keyway to the opposite bore side. Furnished with two nickel silver keys standard. Keyways Index. 625 1 . We would like to show you a description here but the site won’t allow us. Telephone: 877-704-5625 Fax: 877-704-6835Active Keyways Keyways which are available for new Corbin Russwin keying systems are considered active. Schlage uses CNC milling complex keyway shapes to mechanically prevent some non-OEM keys from entering or operating a lock. Undersized Key Stock Assortments. 1. Keyway designation Key bow Chain hole Key cuts Keyway milling Serialization code Key blade Key stop tip Series keymark code 3 8 L l. The most common Schlage keyway is indicated by the letter C. Theoretically, 2 keyways would suffice (25+25=50) but the 25 is a theoretical number which will be slightly reduced in reality. All hubs supplied standard with one set screw. To order interchangeable core cylinders with locksets, specify by cylinder or core model number. Keyway Calculator *tweaked* - just enter diameter of shaft (or bore)! DMF_TomB, I took your calculator you posted, added some more graphical info and tweaked a bit, so it automatically looks up the standard keyway for any given diameter shaft or bore and adds everything (again, automatically) to the graphic. Machining of square shafts with rounded ends (with or without keyways) Other machining available upon request per prints provided (drill, tap, threading) For Keyway MM Dimensions – see the table at. All of the measurements listed on the product pages in inches without the keyway width or depth. 350 Maximum 2. Recommendations for key size, length and keyway depth as a function of shaft diameter are provided in ASME Standards B17. Active Keyways Keyways which are available for new Corbin Russwin keying systems are considered active. 5. Key sizeMetric key keyway dimensions per iso/rtt3 js9 width Keyway sizing chartKeyway chart sizing key machine engineering keyways shaft. These keys have a tapered body that wedges in to the keyway for a more secure fit than standard machine keys. Available 5-, 6- and 7-pin. Cross-section of a parallel keyed joint. Bushings for smaller arbor holes are collared for easier handling. Woodruff Keys. Min. 875 3 – 3/8 × 2 0 . 3. Rectangular. H is the key height. 004, -. Table of tooth dimensions module. 5 7 9 11 14 18 22 28 36 45 Note: The preferred choices are in the series order beginning with 1. The height of metric keys decreases by 1 mm for every 100 mm of length. O. H/2. 2 1. pfeifer. Keys and keyways . keyways & keys dimension in accordance with BS 4235-1:1972: Specification for metric keys and keyways - Parallel and taper keys Recommended ANSI Standard Keys and Keyseats Design per. 3mm 2. For Shafts. 3D Printing & CAD. STANDARD MOUNTING ASSEMBLY FOR QD SHEAVES AND SPROCKETS WARNING: Because of the possible danger to person(s) or property from accidents which may result from the improper use of products,. For Hub Keyway Height. Orthwein [4] suggested a designTranseals Keyway Chart; prev. ANSI B17. 8mm 2. MC 118 SC 10B ST KA2 CAM STYLE AR = Adams Rite CL = Cloverleaf SA = Sargent SL = Schlage ST = Standard Yale KEYING KA2 = Keyed. Lid Chart. Comments are off. their corresponding standard J, K, L, or M keyway cores. Max. Schlage keyway types including Primus/Primus XP, Everest, Obverse, Reverse, Numbered or Paracentric, and Quad. IMPORTANT: Be aware that as lock cylinders begin to wear through use, the keyway can begin to expand. Only informative sections of standards are publicly available. Interference Fit Bore Tol. 000. S. All. 1875 0. 3mm 2. Keys and keyway Dimensions. 19-1997 ; Keyway Stresses for Non-metallic Gears and Shafts Formulas and Calculator; Shaft (Arbor) Keyway Dimensionl Data - ANSI/ASME B94. NOMINAL SHAFT DIAMETER BOTTOM OF SHAFT TO BOTTOM OF KEYWAY WIDTH. We cut up to a 2. British Standard :BS 46 Part 1 : 1958 Keys and keyways and taper pins. But ensure the weakened shaft can support the load. Series 500 and 600 Standard Keyway Broach ChartDownload a Printable Keyway Chart. BS ISO 4156:2005_1: Straight cylindrical involute splines. keys and keyways now have consistent dimensions and tolerances for each size as far as possible, and this will enable a standard range of cutters to be used for the machining of the various types of keyways. 1. 477 Maximum 2. If a setscrew is required, drill and tap over keyway as shown. The keyway dimensions are also different from the English system. In stock and ready to ship. S. Regardless of which unit of length you're using, you'll need to measure the following: width, height, and length. To help, we’ve put together the following keyway cheat sheet for. pdfStandard bore and keyway tolerances (inch and mm) keyway. . Height. Set Screws. Cylinders: Solid brass cylinder and plug. Roller chain sprockets max hub diameters. 19-1997 . Style D - Sprocket with a detachable bolt on hub attached to a plate . Here we can calculate rigid connections, namely the pinned, keyed, splined and flanged ones. Ansi Standard Keyway Sizes Pdf As recognized, adventure as with ease as experience more or less lesson, amusement, as capably as covenant can be gotten by just checking out a book. Manufactured according to ISO606 & ASME B29. Woodruff keys are usually with splines and the L-LOC spline clamping feature, see section 7. Standard . The standard keyway depth in the shaft is 1/2 the keystock size. Keyway Dimensions Calculator. 19-1997. the euro-ac(mec) series has a reversed singleAnsi Standard Keyway Sizes Pdf is open in our digital library an online entrance to it is set as public therefore you can download it instantly. Total Height (X) = Depth (Y) = Return to broaching : 2388 State Route 726 Eaton, Ohio 45320 (937) 456-2232 Fax (937) 456-2282 [email protected] Access AD433-2 Key Combinator. Two keyways may be specified by the customer. Mark the string where they overlap, then measure its length. BEST Standard key systems are durable and offer a wider range of options, providing the precise, carefully managed masterkey applications that make BEST one of the industry leaders for masterkeying. keyway chart hallite web keyway chart the following tables show standard dimensions for keys and their grooves metric rectangular b s 4235 part 1 1972dard and must be ordered. 2 Woodruff Key Size Table Chart ANSI B17. 332 Maximum 3. Regular. As noted above, when selecting a keyway tolerance, there are two common selections in the metric system. Concavity I. The increased tolerances recommended in this standard may entail more fitting of keys into keyways than was envisaged in the1953 edition. Standard QD Bushings Dimensions (Inches) Bushing Bolt Circle Keystock provided for nonstandard keyways. 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 — Keys and keyways. 8mm 1. keyways available upon request. STANDARD Mounting Assembly FOR QD SHEAVES AND SPROCKETS. The keyway is a longitudinal slot in both the shaft and mating part. 313 2 . Thru Width "W" Height "H" Nominal Min. We would like to show you a description here but the site won’t allow us. The general working principle of the sunk types is, that there are two portions of the keys that lies at the hub and the. Furnished with two nickel silver keys standard. Normal Keyseat Depth. Keyways Index KeyWay & Key Dimensions. 2 TECHNICAL INFORMATION Imperial Standards BS 46: Part 1: 1958 1/4 1/2 1/8 x 1/8the key fits into the keyway on the sheft and the remaining half in the keyway on the hub. 8mm 1. Depending on the slot width tolerance, the following fit or seating results in combination with the parallel key:Our Standard Cores and Keys stand at the pinnacle of mechanical locking solutions, with features t hat exceed industry standards and deliver. a) End-milled or prole keyway b) Sled-runner keyway. BEST® combinations are cut in accordance with the original masterkeyed code with no reliance on a pattern key. AGMA ASA Keyway and Bore Design Data ASA Keyway and Bores Design Data including dimension; Woodruff Keys ANSI B17. 9895 • 800. 1265 0. The below chart shows the pin that corresponds to various belt sizes. The general types of them are as below. 4) and the forgotten keyway dimension, which is the. 125). Couplings can be additionally modified with new JIS keyways based on JIS B 1301. The key prevents relative rotation between the two parts and enables torque transmission. Inch (ANSI/AGMA 9002-B4) Metric (ISO/R773) Design of Square Key and Keyway (Wood Ruff) Stress, Shear and Torque. Shaft Key Seat Depth Control Values S and T for Shaft and Hub ANSI B17. BS 46 Part 1 : 1958 Square Keys and keyway Dimensions. e. 2-1967. Nominal Key Size. Along with keyway size tolerances and keyway depth sizes, some standards also provide information on the recommended key size and keyway depth as a function of shaft diameter. To create a keyed joint, a key is used that fits between slots manufactured into the two parts being joined. Specifically it is the Axial Depth of the application. S Family (Everest 29), C Family (Everest) andKey-Depth Tolerance is +. S. Keyway Sizes Broach Style Bushing Diameters (bore sizes) 16, 3 32, 18 A /4, 5 16, 3 8, 7 16, 2 EDP No. Standard keyway dimensionsStandard shaft sizes key bushing table qd non bore keys shallow range gates includes specific each also Keyway chartShaft and hub keyway dimensions. 020 0. See dimensions W and h in Figure 1. D,d Depth. 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)Keyway Chart. S11 STANDARD KEYWAY CHART. 80 Kb) Voltages Around the World (PDF – 203 Kb) HOW CAN WE BE OF SERVICE? Request A Quote. It seems that everyone is familiar with the Schlage key shape. Many keyways are milled directly into a shaft or broached into the corresponding bored holes. This thread form is characterized by a 60 degree thread angle and a flat crest and rounded root. Posted on February 1, 2023 in Industry Formulas. Inactive Keyways Many older Corbin Russwin keyways areThe key has a series of grooves (also called millings) on its sides, and as it slides inside the plug (Center of the cylinder), the horizontal grooves align with grooves (also called broachings) in the keyway, which then denies or allows access to the cylinder. 25 0. 020 0. Tapered Gib Keys. Standard keyway dimensionsKeyway chart Keyshaft keyed shaft, diameter 1 7/16 in, keyway 3/8 in x 3/16 inKeyway slot key shaft keyways internal external suitably drill milling produce sized required access form machine fit. out of 1. 1250 0. 2 Krysinch — A close plus toleranced, cold finished steel stock for parallel keys. Shaft with Two Keyways Torque Applied Deformation and Stress Equations and Calculator. 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 Hub keyway depth is one-half the nominal height of the key and measured from the side corner. The common specification dimension, Keyway Size, is highlighted. 90 3. Divide that number by 3. Unless otherwise specified, conventional fixed core cylinders will be provided as standard with locksets. Get a quote +61 7 3271 5424. Welcome Location Transmission Bushes Pulleys Belts Vector Belts Roller Chain & Sprockets. Shallow. 8 38. 002, -. In the case of new master key systems, the factory reserves the right to select the keyway from a range of standard keyways, based on usage in a particular geographical area. AlthoughFor a worn keyway shaft use our well stocked Interference fit range. Keyway misumi dimensions metric tips designs year threads standard majority got belowKeyway chart pdf Specifying rectangular. 004)/2=. Specification. Today the keyway is Ilco: A1012-59c1 and Jet: 59c1-6 In previous years a Russwin keyway had ilco: A1011d1 and Jet: RU46. 020 0. 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. This International Standard specifies the dimensional characteristics of tangential keys and of their corresponding keyways in shaft and hub. Chart 1 (below) is a cross reference of the SARGENT L Section six pin key blanks starting with the nine Day Keys, then the Lower Level, Mid-Level, and the Top Level Master Keys. web keyway chart the following tables show standard dimensions for keys and their grooves metric standard metric keys keyways for metric bores rexnordThe end of a keyway has two standard designs, shown in Figure 1. The keyway is a longitudinal slot in both the shaft and mating part. Examples and the applicable options for lock nuts with a lock washer, locking clip or locking plate are given below. 15 0. 062 0. Metric External Table Chart Thread Designations Sizes M 1. 000 +. 6 or 7-pin are available on interchangeable core cylinder. 125 4 . Coping with foreign bore and keyway standards | Machine Design. Care should be observed when removing the plugB. Rectangular or square parallel keys. Also known as half moon keys. Reversible in the field. Sunday: closed. Keyway Chart Seals Specification & Size Listings. 4235 : PART 1 : 1972. These keys have a tapered body that wedges in to the keyway for a more secure fit than standard machine keys. BEST offers a quality line of bi-fold, bypass and pocket door hardware. Keys and keyways BS 46 Part 1 : 1958 Square Keys and keyway Dimensions all dimensions in inchesNormal, standard cylinders. 3mm 2. Recommended 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. imperial keyways diameter key size (nominal) shaft hub width depth width depth over incl w h max min max min max min max min 25. on each of the shafts over the keysBy accepting cookies you agree to let us store cookies to personalise content and ads, provide social media features and analyze site usage. all dimensions in inches. comStandard cores use a single spring cover to seal pin chambers. Because this key stock is slightly larger than standard key stock, keys will fit tightly in. 125 0. Sunk Type Shaft Keys. ANSI Sprocket Standard Keyway & Setscrews. (in) (in)* (in) 45 50 14 3. A list of standard keyway and corresponding key sizes for English shafts are listed below in Table 1. Designation - designated as: A parallel key of Type A, width 12 mm, height 8 mm and length 50 mm shall be Parallel Key A 12 x 8 x 50 1, the Metric key size is W x T. Open the catalog to page 11 ANSI woodruff size charts express measurements in inches and nominal key sizes with higher numbers corresponding to bigger keys. 125 45/ 8 11/ 2 11/ 4 1/ 8 21/ 16 37/ 8 33/ 8x 2 1/ 2 25/ 16 213/ 16 3. 005=0. (L keyway family shown, others similar) Multi Keyway Systems. Width b: Depth : Radius R: Nom: Tolerance Class: Shaft t 1: Hub t 2: Normal: Close: Shaft N9: Hub Js9: Shaft & Hub P6: Nom: Tol: Nom: Tol: Max. Therefore, these HOT SHEETS provide very quick referencing for a frequent basis. Transeals - Keyway Chart. b x h width x thck. 4mm 8mm 2mm 9mm 12mm 11mm 4mm 4mm 14mm 15mm DIN 7154, H7 Metric. Lid Chart. S145 is standard for new master key. SPECIFICATION FOR PARALLEL KEYS AND KEYWAYS. 5, 6 or 7-pin are available on standard cylinders. A rounded bottom allows these keys to rock in their seat to relieve stress on the shaft caused by vibration or misalignment. Arrow Pointe IC core products offer dealers unmatched flexibility and keying options. “A” keyway standard on I/C core cylinders. Open keyways are best applied as a cost-effective solution on interior doors, but only where asset protection needs and break. 53 6. Keyway Chart - Free download as PDF File (. 3mm 3. Nominal dimensions of gib head are covered in ANSI B17. Leader in Energy Efficient Industrial Electric Motors and Drives NEMAKeyseat NEMAKeyseat Shaft DimensionsShaft Dimensions (U)(R) (S)(U) (R)(S) 3/8 21/64 FLAT 1-7/8 1-19/32 1/2 1/2 29/64 FLAT 2-1/8 1. Woodruff keys work well near shaft shoulders and on tapered shafts. 1875 0. Tolerances and fits comply with, or are within, AGMA 9002-A86 standard (Class 1 clearance fit). 4235 : PART 1 : 1972British 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. While not recommended, they can still be machined into the couplings upon request. They may be used with shims if the depth cannot be broached in a single pass. Key Seat Key Keyway Key Standard Keyway and Key Dimension Bores Keyway Key SF-STL 9/ 16 3. Page 1 of 3. They are also often used on tapered shafts. 010 Height (d) (t) - DIM Keyway Width (w) AGMA 9002-A86 Inch Bore and ANSI B17. 003 - . Keyway key parallel jis sizes tolerances 1301 mm 1996 pulley excerpt unit techKeyway metric Table aii-12. Engineering Tech Sheet, Keyway Formulas. Reference The nominal sizes given in ( ) do not conform to the relevant international standard and must not be used in new design. Specify either without one (none), with one per our standard keyway chart (std) or as custom. 2. 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 instantly. 5 3x6 4x8 5x10 6x12 7x13 8x14 9x15 10x16 11x17 12x18 13x19 14x20 15x21 15x22 16x22 17x24 18x25 19x26 20x28Title of Legally Binding Document: Parallel Keys and Keyways Number of Amendments: 2 Equivalence: Superceding: IS 2710 Superceded by: LEGALLY BINDING DOCUMENT Step Out From the Old to the New--Jawaharlal Nehru Invent a new India using knowledge. 8mm 2. All dimensions are given in inches. Taper metric dimensions keyway key bs 1972 keyways keys. W width.