Metric keyways. Keyway broaches, keyseating broaches, keyway broach shims, and keyway broach bushings are used to machine keyways, splines, and other irregular shapes into a hole in metalworking tasks. Metric keyways

 
Keyway broaches, keyseating broaches, keyway broach shims, and keyway broach bushings are used to machine keyways, splines, and other irregular shapes into a hole in metalworking tasksMetric keyways  The tool is perfect for creating precise keyways in the boreholes of pulleys, gears, washers, and other shaft-mounted components

The sets also contain keyway shims for controlling the. Description. D1-Style Broach for 10 mm Wd. A square key is used if the deeper key depth is required to transmit torque. T. 75mm. All of the keyways i need to cut are . The keyway broaches are offered in A, A1, B, B1, C, C1, D, D1, E, E1, F, and F1 styles. 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. 0005mm). We stock pre keyed shafting in many diameters, including metric diameters, with standard keyways. 6. Marlco keyway broaches litecut inch L0 broach style. The sets also contain keyway shims for controlling the depth of the keyway and keyway bushings for guiding and supporting the. 1 The dimensions and tolerances of metric keys and keyways shall be as given in Table 1 to Table 8. For square keys, key width and depth For round keys, key radius or key diameter. 1-1967, ASME standard B17. 8mm 2. Carbide Staggered-Tooth Keyseat End Mills. 82. Solved question 5: you have been tasked with designing aShaft keys types key chart square designs Metric machine keysParallel dimensions metric keyway key keys 1972. Metric key keyway dimensionsStandard keyway dimensions Shaft keysRe-design the shaft shown below to be a uniform. Thread a screw through the tapped hole to pop these keys out of a keyway. Dimensions and tolerances of metric keyways for parallel keys (source:BS 4235-1: 1972) 1, the Metric key size is W x T. Brass key stock is corrosion resistant and nonmagnetic. They provide the torque to drive the rotating component and help prevent unwanted slipping or movement. DAV SYSTEMS SRL. Size is clearly marked on each piece. Shaft Bore Keyway Keyway Diameter Nominal Shaft Bore Keyway Keyway Diameter Diameter (Width x Depth) Radius Over to Including Diameter minus Tolerance (Width x Depth) Radius. Standard Metric Keys and Keyway Bores. Rectangular. 3 out of 5 stars 10 ratings. Bold italic type indicates bushes made of ductile material. Ruland is the only North American supplier of clamp style universal joints and manufactures the clamp feature, bores, and keyways in our advanced manufacturing facility in Marlborough, MA USA. They are called “keys” because they lock a component to the shaft by means of a corresponding keyway in a shaft. width depth tol. Nominal Diameter. H is the key height. Just enter the size of the key and shaft, then click "Calculate". The circular segment can be cut directly by plunge cutting with a circular Woodruff cutter without any reliefs. Motor Mass Torque Equation and Calculator. DEPENDING ON STOCK, HASSAY SAVAGE BROACHES AND BUSHINGS MAY BE SUBSTITUTED. The gap of the keyway is shown with tolerances again and the semi-gap is shown. 8mm 1. 4. In closed keyways, these keys won’t slide along the shaft. The following is summarized from the American National Standard Keys and Keyways for Milling Cutters and Arbors ANSI/ASME B94. 002 to 0. all dimensions in inches. Undersized Key Stock Assortments. Common Uses: Original equipment, including motors, gear boxes, gear reducers, and. 19-1997; Shaft Arbor and Keyseat Dimensional. Full length keyways are machined in a single pass in bars up to 20 foot long. Metric Stainless Steel Nylon-Tip Set Screws. All internal calculations are done in metric millimeters to a precision of up to half a micron (0. This key stock is undersized, so keys will fit slightly more loosely than standard keys and are best for inconsistent keyways. Metric Keyway Broaches: Click for a Bigger Picture. inch bores with metric keyways; metric bores with inch keyways; metric bores with metric keyways; or shaft keyseat tolerances. of Shims INCLUDED Tooth Pitch (Inch) No. Inch & Metric Designations for ANSI Preferred Limits & Fits Preferred Limits & Fits (Inch) (ANSI B4. 42Rounded keys fill oval keyways completely, reducing stress on the key and shaft. Fully machineable to change size or configuration. Minimum keyseat width is that figure. Key. COMPONENTS PowerDrive LLC Bore Tolerance 0 to 2 2 to 3 3 to 4 Over 4 +. Metric Keysteel to DIN 6880. Page 1420 | Modi˜cation standads DIN 6885 Keyway, key details Extract Page 1 heavy type d b P9 / JS9 Hub keyway b P9 / N9 Shaft keyway h t 1 = d + t 2 t 2 t 3 = d – t 4 t 4 6 2 2 2 7 1 +0,1 4,8 1,2 +0,1 Metric Key Keyway Dimensions; Parallel Key and Taper Keys Dimensions; Shaft Keyway Shear and Yield Strength Formulae and Calculator; Shaft (Arbor) Keyway Dimension Size Data - ANSI/ASME B94. huyett. c or r. For technical drawings and 3-D models, click on a part. 3. AHC-10000. Created Date:tolerances and fits for metric bores and keyways. What is keyway factor? It is the ratio of the strength of the shaft, with and without the keyway. 000 Standard Setscrew Locations If one setscrew is furnished the location. keyway dimensions metric keyways diameter key shaft hub over incl w h width depth tol. Shaft Collars. 401/2A Set, but for sixteenth. CAD Available in 2D and 3D. 0mm Metric, Standard. 64. Keyways. Linguette - sedi per alberi. - Series EL couplings supplied withKeyway Sizing Chart - Free download as PDF File (. See ANSI/AGMA 9112--A04 for metric bores with metric keyways. Any required shims are included with Broach. Metric Key & Keyway Dimensions Per ISO/R773 – D10 Width Tolerance ‡ Key & Keyway Dimensions – Millimeters Coupling Hub Keyway Dimensions – InchesB +0. 4. Source: heavydutydepot. 1. Shaft bushing boreMetric hex key wrench sizes wrenches 36mm 7mm bloomertool Metric keyway tolerance chartG. Recommended standard lengths are given in Table 9. , New Berlin, WI 53151-7953 USA Telephone: 262-796-4060 August 2003 Fax: 262-796-4064 e-mail: info@rexnord. keyway (bs 4235 - part i) Description. 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. Accusize Industrial Tools No. metric keyways, metric bores with inch keyways, metric bores with metric keyways, or shaft keyseat tolerances. Keyway slot key shaft keyways internal external suitably drill milling produce sized required access form machine fitShaft coupling shaft hole additional modification service Keyed shafting keyway pinitKeyway shaft keyways metric bores mechanical wxh shapes. 5-1 mm, then carry out the back and forth milling with a larger feed rate until it. 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. ANSI B17. Monark Huny. This set is comprised of four broaches, nine. Note: Tables of the various factors and design strengths are found on webpage. Using the G9774 18-Piece HSS Keyway Broach Set is the quickest and easiest way to produce a keyway. The keyway dimensions are also different from the English. American system, the keyway in the hub is dimensioned by the width and the depth at the side, but in the metric system the keyway is dimensioned by the width and the depth measured from the raduis of the shaft to the center of the keyway. 3 Preferred length and weight of keys Preferred length and weight of keys is given in Table 4. Stay organized and be prepared with these popular sets. Hassay Savage. This key stock is stepped to match repaired keyways in shafts or gears. Keyway. British ISO Metric Screw Threads Designations. 3mm 2. They are designed to connect two dissimilar sized shafts in virtually any combination up to a 50 more. They come in fractional or metric varieties (inch or millimeter), offering varying cut lengths. Keyways (Metric) Contributed by. 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. 1 Retaining screws, jacking screws and spring dowel sleeves for keys are given in Table 2. 2 Normative references The following standards contain provisions which, throughreferenceinthistext,constituteprovisionsof this American National Standard. 3mm 2. Bore sizes range from 3/8” to 3” and 8mm to 65mm. These fits andThis item: Accusize Industrial Tools No. Woodruff keys work well near shaft shoulders and on tapered shafts. 1 Ansi Standard Keyway Sizes Pdf Thank you very much for reading Ansi Standard Keyway Sizes Pdf. Detailed width tolerance information is best drawn from the manufacturer. 16 0. As you may know, people have search hundreds times for their chosen books like this AnsiMilling Cutters and Arbors Keyway Cutter Hole Keyway Dimensional Data ANSI/ASME B94. Ann from the top of the shaft, the keyway is shown. (Dimensions comply with DIN 6885/1) Requires use of chamfered keys. Get In Touch. DAV SYSTEMS SRL. 000 +. 0380 605668 5 B1 0. 4. S. BS 46 Keys and keyway Dimensions-Parallel Rectangular Ref Standard . All setscrews are knurled cup point. Check Details. Machine keys are pre-cut lengths of metal that insert into the groove of a. To confirm the status of any standard, identify the replacement standard if it is obsolete and/or purchase the standard please use. 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. We can provide keyed shafts in any length up to 20 foot. Size AA - 1" x 1" Size A - 2" x 2" Size B - 3" x 3" PRECISION BRAND’S SOF’ SHOE® “CURES” ANGULAR SOFT FOOT. The common KeywayKeyways are available as a standard in two-piece rigid couplings. Email This Page Download PDF Printable Page. Metric Woodruff Key and Keyway Dimensions and Tolerances (all dimensions in millimetres) in accordance with BS 4235-2:1977 and ISO 3912-1977 b x h 1 x D Width b Depth Radius R Nom Tolerance Class Shaft t 1 Hub t 2 Normal Close Shaft Hub Shaft & Hub P6 Nom Tol Nom Tol Max min N9 Js9 1. The following is listing of those standards: Standard Description BS4235 P Woodruff keys and keyways – same as ISO 391 BS46P1 Specifications, Keys and Keyways – obsolete Recommendations for key size, length and keyway depth as a function of shaft diameter are provided in ASME Standards B17. Keyways. (Dimensions comply with DIN 6885/1) † Requires use of chamfered keys. But ensure the weakened shaft can support the load. Ref Standard . At the time of PFEIFER INDUSTRIES, LLC. 3. Description. Standard keyways provide added torque capacity and fixed shaft phasing. Standard keyways are machined to two specifications: • Bore Codes prefixed with a “P” denote a metric keywayStay organized with Keyway Broach Sets. The flat saddle key is a taper key that fits into a keyway in the hub and is flat on the shaft. 2 The standard does not deal with misalignment or offset greater than can be accommodated within Metric square keys assortment (m4 thru m8)Keyway metric Standard metric keys keyways for metric bores with one keySquare metric keys assortment thru m8 m4 hillman. SKU. Metric. Grainger approved keyed shaft,dia 1-1/4 in,keyway 1/4 inShaft keyway shear and yield strength formulae and calculator Splines keyways keys key keyway shaft milling. Check Details. Thickness. 0000 /-. Parallel and taper keys; Part 2 Specification for metric keys and keyways. See dimensions W and h in Figure 1. Woodruff key is essential for operating high speed. imperial (pre-war) keyways diameter key shaft hub over incl w h width tol. Woodruff Keys fit into a rounded slot cut into a shaft and a pulley or sprocket that has a slot cut into it is installed onto the shaft the slot slides over the woodruff key, creating an assembly that rotates as one unit. Supplies and solutions for every industry, plus easy ordering, fast delivery and 24/7 customer support. Handwheels are supplied without a keyway. Material options include alloy steel, aluminum, brass, copper, plastic, steel, and stainless steel. We also stock a variety of keyway bushings to allow. The keyway is a longitudinal slot in both the shaft and mating part. Key & Keyway Dimensions - Millimeters 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 Max Min Max Min Max 6 8 2 2. INTRODUCTION — The general practice in industry is to supply coupling hubs without fillet radii in the keyway corners to permit the use of standard commercial keys instead of keys with chamfered. Side View. Rectangular keys. Keyway Width. The key length should be less than about 1. Rebrisbol Keyway Broach Sets 6Pcs HSS Metric Industrial Tools for Lathe, Keyway Size A - 2mm, A - 3mm and Collared Bushings 6A, 8A, 10A . Shaft Diameter “D” Keyway Width Hub “T2. 5 times the shaft diameter to ensure a good load distribution over the entire key length when the shaft. Coping with foreign bore and keyway standards | Machine Design. To meet your requirements, KHK's spur gears are made in a variety of styles. Available in a variety of sizes and materials including lead-free steel, stainless steel, and high grade aluminum (for low inertia). These fits andMetric keyways are dimensioned by width and depth as measured from the radius of the shaft to the center of the keyway. PFEIFER INDUSTRIES, LLC. Metric module, side fit. Metric key keyway dimensions per iso/r773. 2 – 1967, R1990 can be referenced for measuring standard woodruff keys. Shaft bushing boreMetric hex key wrench sizes wrenches 36mm 7mm bloomertool Metric keyway tolerance chartG. I have completed the example calculation on this page using the Zakgear calculator using imperial equivalents to my metric values. X. Materials include cast iron, aluminum, plastic, and duroplastic. They are called “keys” because they lock a component to the shaft by means of a corresponding keyway in a shaft. The bore diameters listed in the "Keyway Additional Modification Applicable Bore List" in the table below are available for the service. The key prevents relative rotation between the two parts and may enable torque transmission. As noted above, when selecting a keyway tolerance, there are two common selections in the metric system. BRITISH Standard CONFIRMED JULY 1986 BS 4235-1: 1972 Specification for Metric keys and keyways -- Part 1: Parallel and taper keys. 19-1997 ; Keyway Stresses for Non-metallic Gears and Shafts Formulas and Calculator; Shaft (Arbor) Keyway Dimensionl Data - ANSI/ASME B94. Standard Keyways: (Used on all of our shafting) “Plain” Shafting available on all Steel grades. Need help peeps. Our tool holders designed to work exclusively with duMONT Stock Keyway and Slotting Inserts are heat treated tool steel, hardened to 58/60 HRC at the Insert seat providing resistance to deformation and longer tool life. 00. Gabriele Panella. Cut it to length to create the machine key you need. Source: machined many keyways into parts for engineers who dont know the difference between A and B, the machinist handbook uses B so whomever made the mating part also measured using B. PRECISION BRAND Metric keystock is used to accommodate metric keyways; True metric keystock that conforms to metric keyway specifications; Material is high quality cold drawn steel C1020 to C1045; Gold zinc dichromate plating on most sizes makes product identification easy; All sizes meet ISO R773 and BS 4235,. QTY: Add to Cart. ISO 2491-1974 (E) Price based on 3 pagesUse them to connect gears and other components with tapered keyways to shafts. ISO Standard — mm Shaft Diameter Groove. Keyways (Metric) Results 1-6 of 6 < Previous Page 1 Next Page > Results per page: Name. Keys available with Square and/or Radius ends. 3. Choose from our selection of machine key stock, rounded machine keys, machine keys,. Brand: Import. Specification for flexible couplings for power transmission. Width. 8 out of 5 stars 5. 0. Lubricate the assembly by applying lubricant to the key and keyway to ensure smooth operation. X. Use as is to make shaft smaller. AHC-10000. Joined Dec 20, 2000. apply to Holes or Shafts. 3mm 3. Keys and keyways are a very important part of shafts and power transmission. The robust. Standard and metric keyway broachesGates belts, hoses, and applications: standard & non-standard shaft key Keyway-and-key-size-dimensions. ← Keyway Size Chart Pdf Standard Metric Keyway Size Chart Pdf →. Gabriele Panella. Palight ProjectPVC 156249 Palight . Supplied complete with the necessary shims to cut keyways to standard depth. Rectangular keys. From £59. Fully machineable to change size or configuration. Install these keys in a drilled and reamed hole to locate fixtures and vises on your machine table. Metric: W x H Key W x. Install these keys in a drilled and reamed hole to locate fixtures and vises on your machine table. See dimensions W and h in Figure 1. Metric Keyway Broach HSS, Type B 4mm. Straight keys, with a square or rectangular cross section, are the most common type of key. The dimensions and tolerances of interference fit keys shall be given in Table 10 and Table 11. Also known as half moon keys. 1 / 1 6 " 3 / 3 2 " 7 / 6 4 " 1 / 8. The tool is perfect for creating precise keyways in the boreholes of pulleys, gears, washers, and other shaft-mounted components. BS 46 :1958 Parallel Keys and Keyway Dimensions; BS 46 :1958 Square Keys and Keyway Dimensions; Factors realting to. 3mm 2. ANSI b17. Category. . keyways /keys dimension in accordance with BS 4235-1:1972: Specification for metric keys and keyways - Parallel and taper keys. Per BS 4235-1:1972: Specification for metric keys and keyways – Parallel and taper keys. 42. (Page 2 of 2) All Types. 5555 S. W is the key width. Description. Cross-section of a parallel keyed joint. Metric Parallel Keys (Feather Keys) to DIN 6585A/B/AB. Metric Keyway Broach HSS, Type E 18mm. PFEIFER INDUSTRIES, LLC. 0005. Keyed Shaftings can be furnished with a key already inserted assuring a proper fit. b. Use them on soft surfaces such as aluminum. Choose from our selection of steel metric key stock bars in a wide range. Sold by Accusize Tools and ships from Amazon Fulfillment. This PA Note will explain the uses of keys and keyways in pulleys and bushings, and present current industry standards for key and Keyway. Specification. 8 10 12 17 22 30 38. The keyways are dimensioned for use with a stock key class 2 in order to get a tight fit combination. Unless otherwise specified, the shaft keyway is assumed to be standard. The Tool Holders designed to work exclusively with duMONT Stock Keyway and Slotting Inserts are heat treated tool steel, hardened to 58/60 HRC at the Insert seat providing resistance to deformation and longer tool life. Material is high quality, cold drawn steel, C1020 to C1045. Hole-Mount Fixture Keys. Made in USA by DuMont. *Other keyways are available upon request. Keyways (Metric) Results 1-6 of 6 < Previous Page 1 Next Page > Results per page: Name. Close suggestions Search Search. Keyway Width. Total Height (X) = Depth (Y) = Return to broaching : 2388 State Route 726 Eaton, Ohio 45320 (937) 456-2232 Fax (937) 456-2282 [email protected] Hardware Design Data. Forrest Addy Diamond. All 8mm Pulleys. l. From £199. See ANSI/AGMA 9112-B14 for metric bores with. Woodruff keys work well near shaft shoulders, where a standard open keyway would create too much stress. Recommended standard lengths are given in Table 9. 4. It comes in a sturdy and convenient to carry Plastic or Wooden case. Factors. scope: This standard presents metric dimensions, tolerances, sizes and fits for straight bores, tapered bores, keys and keyways for unmounted industrial flexible couplings. Stafford Metric Rigid Shaft Couplings are fully metric in all specifications, including the clamping screws. The height of metric keys decreases by 1 mm for every 100 mm of length. Key steel metric rectangular keys machine chart iso standard flat. Rachel Ingram. 2 Axial run-out locating face/thread: 0,05 to 0,30 mm (0. Keys covered by this Standard have a relatively tight width tolerance. Keyways Stock Tool Holders for Inch and Metric Keyway and Slotting Inserts. Corresponding Keyways-- ISO R775 (withdrawn 1998), Cylindrical and 1/10 Conical Shaft Ends-- ANSI/AGMA 9002--B04, Bores and Keyways for Flexible Couplings (Inch Series) The intent of this document is to offer designers and users of flexible couplings preferred dimensions, tolerances and fits for metric bores and keyways. 4. Slightly. 6 0. 95. The keyway dimensions are also different from the English system. 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. , New Berlin, WI 53151-7953 March 2015 (PDF. All keyways are cut to ANSI standards. Standard metric keys keyways for metric bores with one keyKeyway metric key iso dimensions standard keyways keys r773 pdf bores shaft hub depth diameter standards engineering table edge width Keyway-and-key-size-dimensions. 25, 2 x 0. Keyway dimensions hub metric keyways t2 british bores js9 r773 wxhMetric key keyway dimensions Calculator for designing shaft keysAgma keyway bores engineers edge asa data fit llc copyright 2000 2021. 3D Printing & CAD. For example, an ANSI 202 measures 1/16 x 1/4, while ANSI 1012 measures 5/16 x 1. W = d/4[clarification needed] H = 2d/3[clarification needed] where. The keyway dimensions are also different from the English system. Key & Keyway Dimensions - Millimeters 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 Max Min Max Min Max 6 8 2 2. 4 Specifying Metric Keyways Dimensioning and specifying Metric keys and keyways varies significantly from the English system. Material is high quality, cold drawn steel. Cart Assmble. 25 - M 1. Keyway Width. 5. SKU. . Open navigation menu. A radius transition between the floor and wall increases the component’s durability, preventing cracks from stress peaks. pdfKeyway metric key iso dimensions standard keyways keys r773 pdf bores shaft hub depth diameter standards engineering table edge width. Keyway size. , New Berlin, WI 53151-7953 March 2015 (PDF revision) Telephone: 262-796-4060 Fax: 262-796-4064 Supersedes 07-2006. The essential data for this standard have been extracted from ISO Recommendations R 7731) and R 7742). Brand: Rebrisbol. 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. Labels: Machine Elements. Woodruff Key Assortment, 80 Piece. Section. Metric keyways are dimensioned by width and depth as measured from the radius of the shaft to the center of the keyway. bxh Radius r. The Keyway dimensions are also different from the English system. Keyed two-piece split collars giving users flexibility to assemble the collar in-place without the need to remove adjacent components. Metric keyways are dimensioned by width and depth as measured from the radius of the shaft to the center of the keyway. 50. 3mm 2. Used to accommodate metric keyways; features. Keyways provide added torque capacity and fixed shaft phasing. When broaching in multiple passes, shims are necessary to ensure full keyway depth. 5555 S. Table 1 details the appropriate key slot and key sizes for various metric bores. 1 Woodruff Keys. In this section. 18-8 stainless steel key stock offers a balance of strength and corrosion resistance. (K) (H) (R). Keyway key parallel jis sizes tolerances 1301 mm 1996 pulley excerpt unit techKeyway metric Table aii-12. 0mm to 26. The keys and keyways followed the recommendations of ISO R773:1969 and shaft tolerances followed ISO R775:1969. Use them in light duty applications to connect gears and other components to shafts. I've selected a shear strength = S s = 200 MPa, and a compressive strength = S c = 130 MPa. The rounded ends make it easy to slide gears, hubs, and other components into place. Step-Up Shaft Adapters with Keyways. Name. If the job comes with. You may also refer detailed information on British Standard Metric Keys and Keyways. Hole-Mount Fixture Keys. One of the following methods should be used to specify keyways: Metric: WxH Key W x T2 Keyway British. D1-Style Broach for 10 mm Wd. all dimensions in inches. SpecificationPilot Precision Products inserts are standard in stock for inch & metric keyway widths and standard broaching tolerances from H7, P9, D10, C11 and with end chamfer, square, and hex shaping. 2 Normative references . Metric Keys and Key Steels in Steel C45 for fast delivery from stock. 8mm 2. Couplings can be additionally modified with new JIS keyways based on JIS B 1301. Metric key keyway dimensions per iso/r773. ISO 3117:1977 Tangential keys and keyways $26. Metric Key & Keyway Dimensions Per. Woodruff eliminates the milling around the shaft shoulder where concentricity and stress concentration can be affected. 00 $ 471. . 18 £466. Parallel keys are the most common form of keyway. 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. Close Menu. 4mm 1mm 1. Metric – Rectangular B. Keyway Depth. fStandard Metric Keys & Keyways for Metric Bores with One Key Couplings. Material is high quality, cold drawn steel. Design of Standard Metric Keyways for Square and Rectangular Parallel Keys. Max. js9 widthTaper keys.