97. A complete coupling consists of two hubs and one spider (each. Choose from our selection of sheaves, including over 2,300 products in a wide range of styles and sizes. 5020 2. True metric keystock that conforms to metric keyway specifications. Gold dichromate plating on most sizes makes product identification easy Material is high quality, cold drawn steel Metric keystock is used to accommodate metric keyways Sizes are clearly marked on each piece True metric keystock that conforms to metric keyway specifications DIN-6880Nearly every shaft diameter has a corresponding standard keyway width and depth – this calculator helps you find it. C o m p o s i t e. 10 , 12 , 14: D: 32, 34, 35, 36, 38, 40, 42, 44, 45,46, 48, 50: No. For example, Gear drives, Pulleys or Sprockets are connected securely using keys to the power transmitting shaft. Keyway Dimensions. thinwall — metric insert installation removal carbon part no. 0. The keyway dimensions are also different from the English system. 25. Metric 18-8 Stainless Steel Cup-Point Set Screws. ANSI Woodruff Keys. Shaft Diameters and Set Screw Sizes. 5 times the shaft diameter to ensure a good load distribution over the entire key length when the shaft. 5 in–lbs (0. But ensure the weakened shaft can support the load. SHAFT FIT BLANK: Clearance fit U: Interference fit SUFFIX-99: Mill motor hub. Standard woodruff keysWoodruff ansi metric keyway fasteners nominal Key steel pulleys belts metric transmissions stationaryenginepartsTool steel &. Gates belts, hoses, and applications: standard & non-standard shaft keyShaft standard key sizes table non bushing bore keys qd shallow range gates. 4 Nm) to a maximum torque rating of 170,004 in–lbs (19209 Nm) and a bore range of . 5020 2. Key & Keyway Dimensions Millimeters Shaft Diameter. Metric – Rectangular. 1 Square Keyway Tolerances Minimum 1. Press them into place for use in high-torque applications or to replace a key in a worn keyway. 010 / -. Inch and Metric sizes available Key Stock Assortments. 3125 0. T. Max. Metric Keyway Calculator. For Use on. 5 1. Common keystock materials include steel, stainless steel and plated with zinc and are supplied in standard lengths of 12” & 36″ lengths. Metric. B r a s s. 424 Minimum 2. We can manufacture from your part prints or custom-design for your applications. ISO Standard mm Shaft Diameter. 5: 4 center of the keyway. pdf. , depending on the lock nut size: ANSI/ABMA Std. 6mm 1. Filters Suggested Categories . 9 20 12 76 86. For each profile offered there is a wide selection of available grooves, widths, single-flange, double-flange and no-flange. Instead, key dimensions are specified. 00 4. See ANSI/AGMA 9112--A04 for metric bores with metric keyways. Pulleys HTD® Pulleys MXL Pulleys XL Pulleys L Pulleys GT®2/GT®3 Pulleys T Pulleys FHT® Pulleys PDF (inch) PDF (metric)Taper Bush Dimensions. Dia Width b Depth. The dimensions and tolerances of interference fit keys shall be given in Table 10 and Table 11. C Designates a C flange/face mounted motor, e. keyways available upon request. 8 6 6 23 30 8 3. 8. Select your units as required. 1-1943 Standard. The keys and keyways followed the recommendations of ISO R773:1969 and shaft tolerances followed ISO R775:1969. 20–21 Special Broaches Special Broaches to almost any specification in Push or Pull-Types. . , New Berlin, WI 53151-7953 USA Telephone: 262-796-4060 August 2003 Fax: 262-796-4064 e-mail: [email protected] Products About Keyway Broaches More Keyway Broaches Cut precision keyways. Metric Key & Keyway Dimensions Per ISO/R773 P9 Width Tolerance (See Pg. This Standard covers the size, type and tolerances of parallel and taper keys and keyseats, and their relationship to shaft diameters and bore diameters. Nominal Key Size W x D Min. ). Design of Square Key and Keyway (Wood Ruff) Stress, Shear and Torque. Usual IEC sizes. 015/-0. 1 Iso Keyway Tolerances P9 Pdf Getting the books Iso Keyway Tolerances P9 Pdf now is not type of inspiring means. Use individual keyway broaches in a variety of arbor hole sizes. 1263 1264 [technical data] tolerances of regularly used hole fits excerpts from jis b 0401 （1999） 77 － 56 － 67 － 46 － 56 － 38 － 51 － 33 － 43 － 28 － 36 － 24 － 30 － 20 － 166 － 131 － 146 － 111 － 121 － 91 － 106 － 76 － 86 － 61 － 76 － 51Bushing Diameters (Bore Sizes) The most common metric keyway combinations for medium-sized keyways and bores. 8M ; BS ISO EN DIN 20898-7 Mechanical properties of fasteners : torsional test and minimum torques for bolts and screws with nominal diameters 1–10 mm ; BS EN ISO 10642 Hexagon socket countersunk head screws ; BS 4320 Plain Washer, Bright Metric Series ; BS 4320 Plain Washer, Black. Sintered Steel Full No * Key Key. 5020 2. The cutting edges increase until they reach the required size. Choose from our selection of keyway stock, including machine key stock, rounded machine keys, and. Title: CenterClean Data SheetContact PEER Chain at 800-523-4567 or fill out our contact form. A radius transition between the floor and wall increases the component’s durability, preventing cracks from stress peaks. Fast and simple to use mating component to a locknut. 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. Made of stainless steel, this chain has excellent corrosion resistance and can handle heavier working loads than plastic miniature roller chain. 100,Keyway Broach Set,Keyway Broach No. Size(s) 3 x 5 x 12mm, 4 x 5 x 12mm, 3 x 6. 44 Descriptors : fasteners, cotter Pins, dimensions, specifications. 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 Dimensions2. Palight ProjectPVC 156249 Palight . Possesses an oval-shaped point on the end opposing the flush. Keyway key parallel jis sizes tolerances 1301 mm 1996 pulley excerpt unit techKeyway metric Table aii-12. Standard Metric Keys & Keyways. 0350 62 . Keyway Depth. Keys shaft rectangular types key chart hub designs tapered machine selection5/8" od keyed shafting with a 3/16" full keyway Metric key keyway dimensions per iso/rtt3 js9 widthMetric key keyway dimensions. Rotor positioning sensor bearing units . 5mm) wide which is cut on our KEYSEATER. Js9 width Tolerance T2 Key & Keyway Dimensions Millimeters Keyway Keyway Keyway width Depth Radius "D" Nominal Hub w Hub "T2 "R" width Height Nominal Min Max Min Max Min Max Over Thru 8 2 2 2 0125 . 1" 3. Keyway (H9) mm Metric Taper Bushes. 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. Mill custom pulleys, threaded hubs, sprockets, collars, and sensor targets and mount them to shafts. 1 - 1967 (R1989); metric keyway sizes conform to BS 4235: Part 1: 1972 (1986) CENTERCLEAN SPROCKET SPECIFICATIONS. g. 6 - M 18. Description. Shaft with Two Keyways Torque Applied Deformation and Stress Equations and Calculator. 05 to 48 in. Metric Super-Corrosion-Resistant 316 Stainless Steel Threaded Rods. 094 0. 5 x 15mm, 4 x 7. 001/. Instead, key dimensions are specified. 75 to M 200x3 (sizes 0 to 40)Bore tolerances per BS 4500 H7 fit. I. Our largest broached keyway width is 1. Over To (Incl. 100,Broach Set from Broach Supplier or Manufacturer-Chongqing Yuqing Machine Tools Co. QD HUBS PAGE PT6-25. Rectangular keys. Torque Applied to Key. 2) Dimension h of the taper key names the largest height of the key, and dimension t z largest depth of the hub keyway. , New Berlin, WI 53151-7953 USA Telephone: 262-796-4060 August 2003 Fax: 262-796-4064 e-mail: [email protected] mm and a wide variety of inside diameters and thicknesses as well as material variations, you have endless possibilities. 026 71 . 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. Standard Metric Keys Keyways for Metric Bores with One Key; Keyway Cutter Hole Keyway Dimensional Data for MIlling Centers and Arbors - ANSI/ASME B94. S. --keyway dimensionsKeyway chart diagram hallite. General overview (all dimensions are millimeters) The basic size of the feature or fit is the dimension the tolerances will be applied to: The zero line in the calculator. Keyway Broach Sets. 25/-. Nom. Keyway size charts can come in both imperial and metric measurements. Cylindrical and 1/10 conical shaft ends — Addendum 1: Checking of the depth of keyways in conical shaft ends. Keyway broach 1/16 to 1-1/2 inch, 2. Also known as step-cone pulleys, these have multiple groove sizes so you can quickly change rotation speed. Shaft keyseat dimensions and tolerances. They are also often used on tapered shafts. The unit of measurement for dimensioning should be in accordance with the policy of the user. Hub keyway depth is one-half the nominal height of the key and measured from the side corner. Metric Key & Keyway Dimensions Per ISO/R773 – D10 Width Tolerance ‡ Key & Keyway Dimensions – Millimeters Coupling Hub Keyway Dimensions – InchesUse individual keyway broaches in a variety of arbor hole sizes. 0005 / -. INSOCOAT bearings . 2500 0. Hole and Keyway. For inch size bore diameters, refer to the table below and specify in millimeter increments. Therefore most motor series are offered with both standard frame sizes. 8. You can even reach our Product Management Department at 847-775-4600 or via email to info. Keys and Keyways: Dimension charts for Keys and Keyways: Limits, fits and tolerances calculators: Calculates the limits, fits and tolerances according to ISO 286(2010), ANSI B4. 4 Dimensions and tolerances4. See dimensions W and h in Figure 1. Metric Key Keyway Dimensions Engineering Hardware Design Data ISO Hardware Specifications Table Metric Key Keyway Dimensions Per ISO/R773 Js9 Width. 0Dimensions shown are in Inches or mm, if you wish to convert them, please use our universal converter. ISO 9001:2000 certified custom manufacturer of precision metric, miniature, shaft, and timing belt gear pulleys. Width. keyway and corresponding key sizes for English shafts are listed below in Table 1. As with all functions of the Machinist's Calculator, linear values can be. D1-Style Broach for 14 mm Wd. Keyway size charts can come in both imperial and metric measurements. BOX 2400 FORT SMITH, ARKANSAS 72902-2400 U. js9 widthTaper keys. Huyett custom manufactures machine keys of these types and others in your choice of size, material, and tolerance. Woodruff Keyways & Keys. Metric keyways are dimensioned by width and depth as measured from the radius of the shaft to the center of the keyway. 455 Maximum 1. Key Dimensions. The standard dimensioning of the keyway is like above. Metric External Table Chart Thread Designations Sizes M 1. The collar rests on top of the workpiece rather than being supported from below. These metric set screws have good chemical resistance. NEMA C-Face BA Dimensions 143-5TC 2-3/4 182-4TC 3-1/2 213-5TC 4-1/ 4 254-6TC 4-3/4 5000 FRAMEDE2FHOPUVAA AB BAMetric Standard Parallel Keyway and Key Sizes Shaft Diameter (mm) Keyway (mm) Key (mm)* From To Width (W) Depth (h) Width (W) Depth (T) 6 8 2 1. The intent of this document is to offer designers and users of flexible couplings preferred dimensions, tolerances and fits for metric bores and keyways. xls Created Date: 1/23/2014 8:35:20 AM. Steelmans Broach sets are packed in polished wooden boxes. . Available bore size metric square N/A N/A 40 40 40 40 40 40 40 40 metric round 30 30 30 30 30 30 30 30 30 30. Pulleys Size Chart - Pulleys Size Chart Show results for Filters. Sizes are clearly marked on each piece. Metric Shaft Keyway size chart; Shaft Diameter (From) Shaft Diameter (To) Keyway Width Keyway Depth Key Width Key Depth 6mm 8mm 2mm 1. 0005 50 mm ISO k6 > 1. 5. 0 Dimensions shown are in Inches or mm, if you wish to convert them, please use our universal converter. 304/316. View available parts by clicking on the following link: DIN 6885 Parallel Keys High Type “A”When a keyway is damaged, cut a new, wider one. The key length should be less than about 1. The size of gear teeth is expressed by its pitch called module unit. 2-6 Antimony St, Carole Park QLD 4300, Australia Phone +61 7 3271 5424. 4 Dimensions and tolerances4. a keyway and a keyseat, which is a slot and pocket in which the key fits. 000 Standard Setscrew Locations If one setscrew is furnished the location. Engineered products . AUTOMATION & IIOT. We also cut keyways in blind hole conditions, including blind keyways with a groove relief at. Sensor bearing units . In stock and ready to ship. Available in corrosion resistant Zinc Clear finish. Referencing Figure 1, the Metric key size is W x T. contact your local nidec office for "l" dimension. High-Speed Steel Square End Mills for Aluminum, Brass, and BronzeAvailable bore size metric square N/A N/A 40 40 40 40 40 40 40 40 metric round 30 30 30 30 30 30 30 30 30 30. In stock and ready to ship. PFEIFER INDUSTRIES, LLC. 8mm 1. Machine Key Stock, Machine Keys, & Shafts. Metric woodruff keys are measured in millimeters (ISO standard) or in micrometers in more precise applications, though the latter is very rare and usually only applies when. Over To (Incl. 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. The tolerance zone for shaft keyway width b with normal fit is ISO N9 and with close fit ISO P9. Engineering Design Document Nr 1 Created by : L van Wyk Rev0 2014/03/15 KEYWAY DIMENSIONS Metric Keyways DIAMETER KEY SHAFT HUB OVER INCL W H WIDTH DEPTH TOL. Minimum hardness, tensile strength, yield strength and. The following specifications documents and dimension charts are available as Acrobat PDF files: Specifier Guide. In stock and ready to ship. 5020 2. Metric – Rectangular B. metric key keyway dimensions per iso r773 js9 width web aug 31 2010 keyways will be furnished per iso r773 and js9 width tolerance unless otherwise specified dimensions comply with din 6885 1 requires the use of chamfered keys surface finish sides andIn the Metric system it is common practice to specify the key size. This Standard establishes a uniform relationship between shaft size and key size for parallel and taper keys retaining similar basic sizing as found in the withdrawn B17. Cutter sets are recommended for applications where the size of keyways to be cut cannot be. 0. You could not forlorn going with ebook growth or library orAvailable in metric sizes, these 18-8 stainless steel threaded rods have good chemical resistance. Slightly larger than the size listed, these. 1890 0. Key and keyway dimensions (control in motion) Keyway shaft coupling hole service couplings modification additional motion control tapered parallel Keyway chart Standard shaft sizes key bushi. /lbs . Keys that meet ANSI B17. 500 +0 / -0. Keyway Standards Bore and Keyway dimensions comply with ANSI/AGMA 9002-B04 Standard. Keyway metric key dimensions standard keyways keys bores shaft hub depth iso diameter engineering table edge width millimetersWoodruff ansi fasteners nominal Woodruff ansi metric keyway fasteners nominalParallel dimensions metric keyway key keys 1972. D1-Style Broach for 10 mm Wd. If a setscrew is required, drill and tap over keyway as shown in Figure 3. Just enter the size of the key and shaft, then click "Calculate". , depending on the lock nut size Mounting slots according to DIN 981 HM/HME and HM . 100 , Find Complete Details about Hss Inch Keyway Broach Tool Set With Bushing And Shim Model No. Metric External Table Chart Thread Designations Sizes M 1. In stock and ready to ship. 1250 0. Metric Super-Corrosion-Resistant 316 Stainless Steel Cup-Point Set Screws. 8mm 2. all dimensions in inches. Special keyway configurations. 0005-. 02" 1/32" 3/64" 1/16" 3/32" 1/8" 5/32" 3/16" 7/32" 1/4" 5/16" 3/8" Cut Style. Metric setscrews are also available. 1 - 1967 (R1989); metric keyway sizes conform to BS 4235: Part 1: 1972 (1986) GATES. Length Thru Bore (LTB)Round keyed shafting: 1/2 dia. 3 parallel metric keys and keyway dimensions roy mech web keyway b x h width x thck width b depth radius r nom tolerance class shaft t 1 hub t 2Shaft Diameter vs Key Sizes Design Recommendations. Divide that number by 3. Fractional Inch; Metric; Keyway Width. In stock and ready to ship. 3 +0. ANSI Woodruff Keys. Please note that the key sizes in parentheses are older sizes that are no longer commonly used. Supplies and solutions for every industry, plus easy ordering, fast delivery and 24/7 customer support. Metric: OD. Flange Data. Where a key is to be used it should be parallel and side fitting with top clearance. Height. Bore (F8) b h inch inch inch 1008 1108 1210 1215 1310 1610 1615 2012 2017 2517 2525 3020 3030 3525 3535 4030 4040 4535 4545 5040 5050 3/8 1/8 1/16 7/16 1/8 1/16 1. Key dimensions: Parallel keys are most commonly used. They are called “keys” because they lock a component to the shaft by means of a corresponding keyway in a shaft. All dimensions are given in inches. DIN 6888 Woodruff Key ; The dimension of DIN 6888 woodruff key as below: b x h d2 mm l mm t1 mm t2 mm 1. Metric Standard Parallel Keyway and Key Sizes Shaft Diameter (mm) Keyway (mm) Key (mm)* From. 000 / +0. Key dimensions: Parallel keys are most commonly used. 4 Nm) to a maximum torque rating of 170,004 in–lbs (19209 Nm) and a bore range of . 1265 0. 5mm, 4 x 6. Non standard bores and over the keyways. O. *Other keyways are available upon request. QD METRIC BORES PAGE PT6-22. ANSI B17. Key KeyWay. All bushings are provided with complete grinding finish and polish. keyways /keys dimension in accordance with BS 4235-1:1972: Specification for metric keys and keyways - Parallel and taper keys. 004, -. 1 2 3. 50 4. Also known as offset key stock, use step keys to repair keyways in gears and shafts. 8mm 4mm 4mm 13mm 17mm 5mm 2. . Cartener Pulley Keyway Key - Square Key Stock 60pc - Keyway Stock, Keyway Tension, Keyway Blank - Keyway Plastic Box - Flywheel Keys - Pump Shaft Key - 1/4 Key Stock - 3/16 key stock. Keyway Dimensions: Melting Points: Metric Tap Chart: O-Ring Sizes: Pipe Threads: Screw Extractors: Sheet Metal Gauges & Weights: Socket Head Cap Screws: Taper Calculations:. 465Eagle Tool Metric Keyway Chart. Metric. 5 +. (Page 2 of 2) All Types. 118" White St-10 24"X48"*Contact your local Baldor office for “C” Dimensions. thck Nom Free Normal Close/Int - - - -. Made from aluminum, bronze, cast iron, steel, manganese steel, stainless steel, AVC, Delrin®, and nylon. COM/TPU 10/2021 . 02 in h > 9. DIN 7154, H7 Metric Bore and DIN 6885, Js9 Square Keyway Tolerances Page 1 of 4. 6 7 6. clearance fit bores with set screws. 1 Square Keyway Tolerances Minimum 2. Metric sizes are available upon request. 2 mm. Metric Standard Parallel Keyway and Key Sizes. metric bores. Bore with Keyway Pulley Aluminium, Imperial: A : 2 : B: 1: 2 Taper Lock Pulley (Cast Iron, Metric) 1SPA - A & SPA Section, 1 Groove. From the right side of the shaft total diameter is given with tolerances. 350 Maximum 2. 7 4. bxh Radius r. Width b: Depth : Radius R: Nom: Tolerance Class: Shaft t 1: Metric Keyway Calculator. 3 16 10 59 65 18 4. 02/-0. Variable spacing between the flutes reduces vibration, allowing these end mills to provide fast cuts, smooth finishes, and long tool life. 2 tolerance from 26 24 ex vat answer to metric key keyway dimensions per iso r773 js9 width tolerance t2 key amp iso keyway tolerances p9 help environment harvard eduThe metric system does not refer to keyseat or keyway dimensions as does the English system. Allowance must be made for keyway and setscrews . 0380. You could not forlorn going next books addition or library or borrowing from your connections toFor use with splined shafts, which are commonly found in gearboxes and pumps, these couplings are capable of transmitting more torque than couplings for round and keyed shafts. 1. 3 10 8 39 44 12 3. 0625 0. Mark the string where they overlap, then measure its length. Metric standard for 2 keyways in a shaft (180 degrees apart) Metric standard for 2 keyways in a shaft (180 degrees apart) Mannes Karsten (Petroleum) (OP) 4 Oct 19 13:41. NOMINAL SHAFT DIAMETER BOTTOM OF SHAFT TO BOTTOM OF KEYWAY WIDTH REFERENCE DEPTH 0. 000 for all standard keyways BORE, KEYWAY & SET SCREW INFORMATION MECHANICAL P. Press it into place for use in high-torque applications or to replace a key in a worn keyway. width x. Shaft Diameter. Keyway Dimensions. 5000 2. 9 Mil 1956 10-49. 00 #46. For Keyway Dia. The following tables show standard dimensions for keys and their grooves. Threads are American National form, Class 3. With outside diameters ranging from 2. Machine keyway to recommended size and tolerance listed per Table 5. 5 1. DIN 94 / ISO 1234. 5 302. Choose from our selection of keyway cutters, including keyseat end mills, keyway broaches, and more. Stock Sizes of Keyshaft. Keys and keyways. Woodruff Keys. Metric Rectangular B. pdf), Text File (. 2 7-1,2 1. Width b: Depth : Radius R: Nom: Tolerance Class: Shaft t 1:. Unless stated otherwise, hub torque and horsepower ratings assume a SOX (NBR) rubber spider is being used. For more information, contact our sales department at 906. Lock nuts with integral locking . Max. 2 Normative references The following standards contain provisions which, throughreferenceinthistext,constituteprovisionsof this American National Standard. Top. The key and key seat cross section are ISO standardized. Stress Concentration Shaft. Mill Thickness. 322 0. Slightly. for proper strength . The letter is the tolerance deviation, the. 5 x 18mm, 5 x 7. keyway dimensions metric keyways diameter key shaft hub over incl w h width depth tol. Metric standard for 2 keyways in a shaft (180 degrees apart) Metric standard for 2 keyways in a shaft (180 degrees apart) Mannes Karsten (Petroleum) (OP) 4 Oct 19 13:41. Dimensions of parallel keys and taper keys 1) The tolerance zone for hub keyway width b for parallel keys with normal fit is ISO JS9 and with close fit ISO P9. RoyMech Resources Keyways Taper Metric Key and Keyway Dimensions These Pages include various standards. recommendations except for the bore sizes marked * which are shallower. As noted above, when selecting a keyway tolerance, there are two common selections in the. 10-24. The IEC 72 defines motor frame size standards for regions that use SI units. 8 mm. 0mm to 26. Shaft keyseat dimensions and tolerances were. Each tooth’s cutting edge is a few thousandths of an inch larger than the one before. Increase or reduce your shaft's diameter to fit equipment, or replace damaged shaft ends. 2500 0. Keyway shaft metric bores keyways chains t2 wxh saddleKeyway metric Keyway rectangular parallel roymechKeys keyway metric standard keyways sizes engineering shaft key parallel square fit fits mechanical. Woodruff Key Assortments. Keyway width P9 tight fit (standard design) JS9 or N9 loose fit (requires written agreement) see also. Keyways are British Standard Metric BS 4235: Part 1: 1972 DIN 6885 and conform to ISO recommendations with the exception of those marked* which are shallower. all dimensions in inches. 4 mm. Bushings rest inside the arbor hole of your workpiece and act as guides to ensure rigid and accurate keyway cutting. 002. ANSI B18. Calculate Standard Shafts and Keyways. Applications include power transmission to industrial equipment such as pumps, gear boxes, compressors, blowers, mixers, and conveyors. Interference Fit Bore Tol. 3mm 2. Refer to Figures 4 and 5 and Tables 6 and 7 for recommended setscrew location and size. Re: Common Keyway sizes? Post by atomarc » Wed Dec 19, 2012 8:32 pm Keyway size is typically predicated on shaft size. See dimensions W and h in Figure 1. A hex key (also, hex wrench, Allen key and Allen wrench or Inbus) is a simple driver for bolts or screws that have heads with internal hexagonal recesses ( sockets ). 322MB Series. 410 in (sizes N 048 to N 950)have four, equally spaced slots around their circumference to accommodate a hook or impact spannerDOWNLOADS. 5555 S. Standard Metric Keys & Keyways for Metric Bores with One Key • Couplings All Types (Page 1 of 2) Metric Key & Keyway Dimensions Per ISO/R773 – Js9 Width Tolerance Key & Keyway Dimensions – Millimeters Falk Coupling Hub Keyway Dimensions – Inches Shaft Diameter “D” Key Size Nominal Keyway Width Hub “W” Keyway Depth Hub “T2. This standard incorporates information from the following International Organization for Standardization (ISO) and American National standards Institute (ANSI) standards:Keyway Bore Diameter Size Bore Reference -0.