Metric keyways are dimensioned by width and depth as measured from the radius of the shaft to the center of the keyway. 97 5 . 2 (from a table) Stress concentration factor for rectangular keyway (Kf) = 1. 3810. Also see Table of Hole Tolerances per. e. Use the 2. To calculate this result, follow these steps: Calculate the torque acting on the shaft from the power and shaft speed, using T = 60⋅P/ (2π⋅n) =. One of the following methods should be used to specify keyways: Metric: WxH Key W x T2 Keyway British: WxH12 Key W x H Keyway ISO Standard-mm Imperial -Inches * Groove dimensions for woodruff keys DIN 6888 in accordance with DIN 6885 Sheet 1 (with back clearance) BS 4235 Pt. Keyway Depth (Normally 1/2 of width) Total Height (X) =. Minimum keyseat width is that figure. [h] Keyway depth (= Key thickness (t)/2) Fatigue stress concentration factor [K_ft]for keyways as shown in the figure below for the common keyway types of Sled-runner (a) and Profile keyway or end. The taper angle calculator will return the taper per inch. It's easy and it's free!. e. Leigh, All this does, is calculate the radius height that is added to the ½ dim. MAXIMUM TORQUE (T): (Nm) SHAFT DIAMETER (D): (mm) KEY EFFECTIVE LENGTH (L): (mm). App calculates cut time based on keyway depth, length, & depth of cut. 018: 4: 0 -0. A rectangular key is generally used for shaft diameter between 1” (25 mm) and 20” (500 mm) Generally, these have a reduced effect on the shaft due to its shallow keyway depth. ). dim. 7510. Slots or grooves can be short or long, closed or open, straight or non-straight, deep or shallow, wide or narrow. 1-1967, ASME standard B17. Therefore, we need to determine the key size that will not exceed the allowable stress concentration factor. Run Keyway & Tolerances Calculator on PC with LDPlayer. Support. Step #7. QuicKey Control Joint, 24 ga Thick, 10 ft Length, 7. The calculator has been tested, but no guarantee can be given for the accuracy of the results. Non standard bores and over the keyways. Regardless of which unit of length you're using, you'll need to measure the following: width, height, and length. 74agreed easy then, since currently we extend the join to buy and make bargains to download and install Imperial Woodruff Key Keyway Dimensions Pdf correspondingly simple! imperial keyway calculator eicac web imperial keyway calculator key dimensions parallel keys are most commonly used the key length should be less than about 1 5. Both dimensions, h. Top. 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. ISO 286You need about 33 cm³ of grout for a tile with length 12 cm and width 24 if your total surface area is 290 cm², with the border gap 1 cm around the tile. 010 Height (d) (t) - DIM Keyway Width (w) AGMA 9002-A86 Inch Bore and ANSI B17. F = Force. τ = 16. Our largest broached keyway width is 1. Click here for mobile Machinist Calculator information. 413-773-3674 or. 04") in half. On the Design tab, select Cylinder in the tree control. NOTE This class of fit is described in ISO Recommendations R 773, Rectangular or square parallel keys and their corresponding keyways (dimensions in millimetres), and R 774, Taper keys and their corresponding keyways (with or without gib head) (dimensions in millimetres), as fitted. Technical drawing. com web: Supersedes 4-96Our largest keyway is 2. The following Engineering calculator will show the plus and minus tolerance for the specific ISO 286 Shaft tolerance data. 100% (2) 100% found this document useful (2 votes) 21K views 1 page. 2 continued. ISO/R 773:1969. 38 1958. 2 mm P 2 max = 0. (7—7) directly. SVG and . 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” Shaft Keyway Shear and Yield Strength Requirement: Design tip for shaft and keyways: In general, shafting up to 3 inches in diameter is almost always made from cold-rolled steel. RoHS. 0 / √2 ≈ 0. 0, 6. If your measuring from the OD of the shaft there is a formula in Machinery Handbook to add that dimension to the half size of the key but don't depend on it for the right depth to cut to. Keyway Depth = 5mm. 25" for your calculations. 905. 5 inches deep, the size of 2x4. Structural Analysis of Beams and Shafts. 16 Catalog – DT/DV-GM2009 2 Notes on dimension sheets Important Information, Tables and Dimension Sheets Motor dimensions SDT, SDV SDT and SDV motors are the same size as the corresponding DT and DV motors. 1 and C m is the ratio of elastic limit and the ultimate tensile strength. 16. 02 48000 100-3 3/4 . * 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). To ensure an adequate factor of safety in the design of a shaft with standard keyway (width, one-quarter, and depth, one-eighth of shaft. Shaft Keyway Shear and Yield Strength Formulae and Calculator. 010 Height (d) (t) - DIM Keyway Width (w) AGMA 9002-A86 Inch Bore and ANSI B17. COMPONENTS PowerDrive LLC Bore Tolerance 0 to 2 2 to 3 3 to 4 Over 4 +. The cutting edges increase until they reach the required size. Metric key keyway dimensions per iso/r773. Cut precision keyways. Keyways will be furnished per ISO/R773 and Js9 width tolerance unless otherwise specified. 3/32" key depth (standard square keystock size for the shaft is 3/16") 1044 stress proof steel series, 303-grade stainless steel, and ground and polished (TGP) configurations available; Cut-to-length shafts are available in one to two business days; Dimensions: Shaft Diameter (A): 5/8" Keyway Width (B): 3/16" Keyway Depth (C): 3/32Applications. w Figure 6. H Timing Belt Pulley - Standard Keyless Bushing. K. 11. A keyed joint is used to ensure orientation or restrict rotational movement between parts, as in the case of joining a shaft with a coupling. 100% (2) 100% found this document useful (2 votes) 21K views 1 page. Engineering, Manufacturing Tolerance Limits Fits Charts. 05 = 1. Predrilled holes in the keyway form make this an easy task. PCD: Bore Size: Stenco Code: AIMS Code: Product Link: 2. 19-1997; Design of Square Key and Keyway (Wood Ruff) Stress, Shear and Torque; Metric Key Keyway Dimensions Rectangular keys. S. BOTTOM OF SHAFT TO BOTTOM OF KEYWAY. The stress concentrations at the keyway end are most severe for the profile keyway, so with respect to fatigue the sled-runner is the best design. 5 times the shaft diameter to ensure a good load distribution over the entire key length when the shaft. 2 0. . 35 7. Key. 1. 5 +0. 53 2. STL file for use in 3D printers and importing into CAD/CAM packages. Achieve your dreams without breaking the bank with these tips in this article for making smart financial decisions. Just enter the size of the key and shaft, then click "Calculate". Internal keyways usually require a slotted bushing or horn to fit the hole, with the keyway broach pulled through the horn, guided by the slot. 1 standard which is based on inch units. 53 9. Key height: 25mm. 1. Two (2) inputs are required, See the application illustration at bottom of page. Mechanical Tolerance Chart Data. The maximum shear stress occurs at the outer radius of the coupling and at the interface of the two bores. Applications. Key dimensions: Parallel keys are most commonly used. 0002″ to 0. 375" and keyway is. The image below the table gives an indication of what the gear might look like. P5M Timing Belt Pulley - High Torque, Standard or Short Keyless Bushing. 3 Preferred length and weight of keys - Preferred length and weight of keys is given in Table 4. There are recommended fits for keyed shafts and hubs in Machinery's Handbook as well as the actual keyway dimensions but you need to know your specific application for sizing. Each tooth’s cutting edge is a few thousandths of an inch larger than the one before. Dimensions and tolerances of metric keyways for parallel keys (source:BS 4235-1: 1972)The basic size of the feature or fit is the dimension the tolerances will be applied to: The zero line in the calculator. Design of Square Key and Keyway (Wood Ruff) Stress, Shear and Torque. There should be a top clearance between the key and the keyway in the bore. 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. 0 2 2 9 10 3 1. DIN-Keys & Keyways to ISO Diameter d in accordance to DIN 6885/1 in accordance to DIN 6885/3 above to Width b 1) Depth h Shaft Keyway Depth t₁ Hub Keyway Depth d = t₂ Width b 2) Depth h Shaft Keyway Depth t₁ Hub Keyway Depth d = t₂ mm mm mm mm mm mm mm. See Fig. This is an easy to use Keyway Calculator with settings to customize the number of decimal places to display. 2. Keyway Depth Calculator answer BoreTurn Keyway Broaching Keyseating Milling Drill Tapping. The end of a keyway has two standard designs, shown in Fig. 1265 0. Remove the keyway form as soon as the concrete has set up sufficiently to hold its shape. Also calculated are the overall measurements for shaft and bore, as well as the chord height. The keyway is assumed to be rectangular. Title: Tables. Design of Square Key and Keyway (Wood Ruff) Stress, Shear and Torque. Nominal Dia d: Key: KeyWay: b x h width x thck: Width b: Depth: Radius r: Nom: Tolerance Class: Shaft t 1: Hub t 2: Over: Incl: Free: Normal: Close/Int----Shaft H9: Hub D10: Shaft N9: Hub Js9:Suppose you have a hub with a diameter of 100mm and a shaft with a diameter of 90mm. Hit the. dShaft Keyway Shear and Yield Strength Requirements Formula and Calculator; Spur and Helical Gear Mechanical Drawing Specifications Requirements Defining a gear for manufacturing, or procurement requires engineering and manufacturing information. D im en s o- N , OP A Ba dX rp cf t l . The shear stress in the shaft is calculated as. Considering a circular cross-section (see cross sectional area calculator) workpiece, the section at the larger end is called the major section and has. 81 9. 2 mmHow to use this calculator: Choose a type of operation (drilling, reaming, boring, counterboring, face milling, slab milling/side milling, end milling, or turning), select your stock material, choose a material for the tool (high-speed steel or carbide), input the quantity of teeth for the tool and the diameter of the workpiece/cutter. 000,004″ Particle size between 0. 750 1 . 0. 25 6- 30 2 +0. Over Width, W Height, H Size, bxh 1 1/4. & Dimension "V" is shaft length available for coupling, pinion or pulley hub - this is a minimum value. How to Calculate Shear Stress in Kennedy Key? Shear Stress in Kennedy Key calculator uses Shear Stress in Key = Transmitted Torque by Kennedy Key /(sqrt (2)* Diameter of Shaft using Key * Width of Key * Length of Key) to calculate the Shear Stress in Key, Shear Stress in Kennedy Key is defined as the force tending to cause deformation of the key's. Enables keyway dimensions editing. Interference Fit Bore Tol. 1 - 1972 # Tolerance each on T1 and T2. of Teeth Minimum Length of Cut (Inch) Maximum Length of Cut (Inch) HSS TiN Coated Code Code 1/16 A 1/8 x 5 0 3/16 18 13/64 1-1/8 605515 605536Metric Key Keyway Dimensions Per ISO/R773 - Js9 Width Tolerance. 25" shaft / hole. Taper keys with or without gib head and their corresponding keyways. b x h width x thck. 30)or the cap screws (bush size to 5050)and screw them in, do not tighten them yet. 5000 2. var. 000,000,400″ Particle size less than 0. Keyway Calculator: Android app (50+ downloads) → Calculate missing dimensions for Keyways This is an easy to use Keyway Calculator with settings to customize the number. 3rd-To find the 2nd “B” pin segment, subtract the 1st “B” code from the 2ndHole-Mount Fixture Keys. The cutting edges increase until they reach the required size. 406 Woodruff Key Dimensions. 08-0. The purpose of the interference fit with a keyed shaft is to axially locate the. Depending on the keyway, Corbin & Russwin generally used depth increments of . 413-773-3674 or 800-628-9648 FAX 413-773-8430. ANSI LIMITS, FITS AND TOLERANCES CALCULATOR. Keyway Sizing Chart. Key dimensions: Parallel keys are most commonly used. Dimensions. Keyway Size Chart PDF. 4° L max = 3 in L max = 75 mm (LH and RH shafts) P 1 max = 0. 93. 7/16. Shaft (Arbor) Keyway Dimension Size Data -. 90 3. Tool selection is normally determined by the width and depth of the groove and, to some extent, length. Most keyways in a shaft are half the height of the key plus . 1. Measure and record all pertinent dimensions of the rotor as shown in Figures 9-7 and 9-8. Once the key is inserted into the keyway, it is not going to move. Read more on how keys and keyways work and what types are available – Keys and Keyways. One of the following methods should be used to specify keyways: Metric: WxH Key W x T2 Keyway British: WxH12 Key W x H Keyway ISO Standard-mm Imperial -Inches * Groove dimensions for woodruff keys DIN 6888 in accordance with DIN 6885 Sheet 1 (with back clearance) BS 4235 Pt. You can use the following formula: Grout = Aₛ - Aₛ × (Lₜ × Wₜ / ( (Lₜ + Gₜ) × (Wₜ + Gₜ))) Where: Aₛ - Area of the surface; Lₜ - Length of the tile; Wₜ - Width of the. Use our Metric Keyway Calculator or Imperial Keyway Calculator to work out the stresses in parallel key and keyway. 5000 3/32 1/8 1 3/16 1. Length X Width X Height in centimetres / 5000 = Volumetric Weight in kilograms. Key length = (Required torque) x (load factor) ÷ [ (shaft radius) x (key material shear strength) x (key width)], all in consistent units. If a number of parts, all of the same diameter and keyway size, are to be machined, an internal keyway broach can be designed to fit into the hole to support the cutting teeth. For a key to function, there must be a keyway on the shaft and a keyseat on the rotating machine element. Keyway Cutter Hole Keyway Dimensional Data for MIlling Centers and Arbors - ANSI/ASME B94. Therefore most motor series are offered with both standard frame sizes. S s = Yield Stress of Key. of the key. If needed, also input the gear cutting tool's tip rounding radius coefficient. 4375 shaft. 000" and keyway is 50" x. Select the Woodruff Cutter from the tool menu (Note: Keyseat cutters are referred to as Woodruff cutters for feeds and speeds):Shaft Key Seat Depth Control Values S and T for Shaft and Hub ANSI B17. Aligned dimensions have text placed parallel to the dimension line with vertical dimensions. Trunnion bearing housings for grinding mills – FSDR. Enables keyway dimensions editing. Then use that generic circle in your TP calculations. In order to transmit rotation from the shaft to the hub of gear wheels, pulleys, sprockets, couplings, flanges and other coaxial parts, rigid and frictional joints of. Keyway Depth (H): 1. var. 90. 3 12 8 45 50 14 3. Downloads Flat Plate Stress Calcs Fluids Flow Engineering Friction Engineering Gears Design Engineering General Design Engineering Hardware, Imperial, Inch Hardware, Metric, ISOAbout Keyway Broach Tools. 5000 2. The keyway calculator is a valuable tool that simplifies the complex process of calculating keyway dimensions. If your measuring from the OD of the shaft there is a formula in Machinery Handbook to add that dimension to the half size of the key but don't depend on it for the right depth to cut to. This shafting is true and straight and needs no turning, but if keyways are cut in the shaft, it must usually be straightened afterwards, as the cutting of the keyways relieves the tension on the surface of the shaft. This stress can be derived from the torsion formula: τ max = T D o / 2 J. 4 18 11 66 75 20 4. D. A list of standard keyway and corresponding. It was shown that the width of the shaft keyway is already outside its manufactured tolerance field of 12P9 (-61µm to -18 µm) due to the joining of the key (2nd measurement - 1st measurement, Fig. 3) Create 2 intersection points between the side lines and bottom line. Torsion of Shaft with Keyway. Home; Metric Keyways Index page; Parallel Keys and keyway Dimensions; Parallel Keys and keyway Dimensions to BS 4235-1:1972 KeyWay & Key Dimensions. d. KinematicCut precision keyways. DescriptionA key is a machine element that is used to join a rotating machine element to a shaft. BSI 01-1999 1. Cut precision keyways. Calculate a RC3 cylindrical fit for a 2. Simply enter the values and click "Calculate". Tolerance of shaft. 424 Minimum 2. ‡ For any bore fit per table below. The profile keyway is cut by an end-mill while the sled-runner keyway is cut by an ordinary milling cutter. 000,080″ Described as colloidal solution particlesUse this calculator if you know 2 values for the rectangle, including 1 side length, along with area, perimeter or diagonals and you can calculate the other 3 rectangle variables. 0 for severe vibrations/shocks. 4. 857 mm Reference dedendum: h. e. 4. 5020 2. ISO/TC 14. The shaft is under torque T, applied to the. For any other units of measurements, use our length converter to convert these units to decimal inches. The long length of cut provided has been used and tested by thousands of machine shops and companies since 2006 when our patented broach tool design was sold. - The maximum tolerance describes the. area = √ 115. MITCalc - How to calculate and design the Key and Keyway for the shaft. de can quickly implement every wish in every lot size! To go to the page of our product partner, please click here! The following books can be recommended without restrictions. 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. 00050-0. On the Design tab, select Cylinder in the tree control. 61 24000 100-2 3/4 . 8 6 6 23 30 8 3. S. BS 46 Keys and keyway Dimensions-Parallel Rectangular. Two-bearing housings – PD series . F =0. The following tolerances for maximum lead (due to angular displacement. Measure height (B). 1) Take a line along the bottom face of the keyway and ( rotate align to this ). 0. 1 Class 1 standards for dimensions and tolerances. DIN 6885-3 :- Key, Hub Keyway, Shaft Keyway Details and Dimensions DIN 6885/3 :- Definition Drive Type Fastenings without Taper Action; Parallel Keys, Shallow Pattern, Dimensions and ApplicationKeying Help Glossary: Manufacturer: To find the door hardware manufacturer you are interested in, just sort the manufacturer column (to the right) in alphabetical order by clicking at the top of the column. 22. Width of Keyway d. For all computers and tablets running Windows 32bit and 64bit (except RT) We give you 30 days to try out Machinist's Calculator, with no limits on functionality! The trial can be used an unlimited amount of times within the 30 day trial period. 350 Maximum 2. 1-1967 (R2013) standards. Calculators In this category of Mechanicalland, there are lots of engineering calculator tools that can be used in engineering calculations. Engineering Calculators Excel App. BALDOR ELECTRIC COMPANY P. Ref Standard . The stuff may be a thou or two under nominal size. Measure height 2 (D). P9 and D10 width tolerance can be furnished on request. 4375 1. Hollow saddle keys. Shaft Diameter. BOTTOM OF SHAFT TO BOTTOM OF KEYWAY. 008 in P 1 max = 0. Ex: ASSIGN/V2=LOC1. 002 -0. wide at the top. 2 (1978) and ANSI B4. The following tables show standard dimensions for keys and their grooves. W = d / 4 [clarification needed] H = 2d / 3 [clarification needed]. Also calculated are the overall measurements for shaft and bore, as well as the chord height. A rectangular sunk key is shown in Fig. Key. British Standard Metric Keyways for Square and Rectangular Parallel Keys 11 5/16 3/8 7/16 1/2 3/4 3/4 7/8 Nominal Diameter, d 6 1/2. Bring the broach head manually to within . 5000: 0. 008 in P 2 max = 0. ANSI Woodruff Keys. Key dimensions: Parallel keys are most commonly used. 84 mm . The sunk keys are of the following types : 1. Cylinder Manufacturer: This identifies the manufacturer of the actual cylinder used for that brand’s keyed door hardware. The key is then tightly fitted between the keyway and the keyseat, hence the mechanism is called a keyed joint. This stress can be derived from the torsion formula: τ max = T D o / 2 J. 5 times the shaft diameter to ensure a good load distribution over the entire key length when the shaft. 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. This free propeller shaft size calculator helps you determine the proper propeller shaft diameter for your boat. Broaches are for use in hand and hydraulic arbor presses and are great for maintenance and short-run production operations. A shaft key is a small metallic component mounted between the shaft and hub to restrict the relative motion. Downloads Online Books & Manuals Engineering News Engineering Videos Engineering Calculators Engineering Toolbox GD&T Training Geometric Dimensioning Tolerancing DFM DFA Training Training Online Engineering. 16 1. Nominal Shaft Diameter Nominal Key Size Normal Keyseat Depth Over Up to and Incl. Convert any feet to inches by multiplying the number of feet by 12, since there are 12 inches in a foot. inch . 14 (Fig. Re: Shaft Keyseat. The sunk keys are provided half in the keyway of the shaft and half in the keyway of the hub or boss of the pulley. PFEIFER INDUSTRIES, LLC. Check how the old prop fits the taper shaft and the amount of draw - i. I've selected a shear strength = S s = 200 MPa, and a compressive strength = S c = 130 MPa. 187 1 . F = force applied, lb. 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. 000 +. 5°. For example: 3 feet = 3 × 12 = 36 inches. 7 mm. 2180 Corporate Lane, Suite 104 ~ Naperville, IL 60563 USA Phone (630) 596-9000 Fax (630) 596-9002Keyway length (L): 50 mm. However, we'd love to have your opinion of Machinist's Calculator. Article options / Table. *Contact your local Baldor office for “C” Dimensions. ANSI B17. Metric Key Keyway Dimensions. mm . International courts used in FIBA competitions are a little smaller at 28m long (91. For example, Gear drives, Pulleys or Sprockets are connected securely using keys to the power transmitting shaft. Rectangular. - Show the tolerances based on ANSI/ASME B17. Please call with any questions. Taper Calculations. They include the required shims to ensure full keyway depth. The height of inch keys decreases by 1/8" for every 12" of length. Keyway Width (w) 10mm 3mm 3mm 1. Keyway is a recess in the shaft and hub to accommodate the shaft key. 2 L = 125 Key width Key height or sha t diameter d Key height Gib height Keyway width Gib head h Nom. Fits and tolerance calculator for shaft and hole tolerance calculation according to ISO 286-1 and ANSI B4. Flag Thickness inches. Hub keyway depth is one-half the nominal height of the key and measured from the side corner. F, are reference values that split the tooth depth into the. O. As shown on the detail most keyways are about 3 inches wide by 1. Choose these lock cylinders if you need several lock cylinders that open with the same key. 50 3. Key and keyway dimensions (control in motion)Solved question 5: you have been tasked with designing a Gates belts, hoses, and applications: standard & non-standard shaft keyShaft key keys torsion keyway keyways diameter calculator torque strength mm shear length drive fatigue tribology calculators abc loaded. 000. the overhang distance at the nut end so the prop tightens on the taper. 8 0. AGMA ASA Keyway and Bores Design Data including dimension and tolerances. Keyway Depth Calculator - Calculate Keyway Depth Online body { font-family: Arial, sans-serif; background-color: #f5f5f5; margin: 0; padding: 0; } . The key and key seat cross. Since the longest distance between any two points of an equilateral triangle is the length of the edge of the triangle, the farmer reserves the edges of the pool for swimming "laps" in his triangular pool with a maximum length approximately half that of an Olympic pool, but with double the area – all under the. Use the Keyway dialog box to enter parameters for keyway feature in the Shaft Component Generator. * 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). How big is a basketball court? NBA and NCAA basketball courts are 94' long and 50' wide. Keyway Depth Calculator input. After you've tried the software, please use the feedback form to let us know what you think. The key length should be less than about 1. Technical drawing. They are useful for shaft end. >280 Some motors of size > 280 may have different dimensions. The tolerances defined in ISO 286-1 are applicable to size range from 0 mm to 3150 mm but there are exceptional cases defined in the. Multiply the length x height x width in centimetres and. 4mm 1mm 1. keyways available upon request. 8 will give you your key weight in grams. Cold Formed Steel. Gravel volume required to fill a path, car park or driveway. Access Ribbon: Design tab Power Transmission panel Shaft. Dimensional Charts are for Metric Taper Keyways, Metric Taper Keys, Imperial Taper Keyways and Imperial Taper Keys. Nominal size. 987, forces the machinist to work to those fine limits. Our Standard woodruff keys are machined metal fasteners used to transfer torque from a shaft to gears and function as a fail-safe device and have ANSI Standard dimensions. 0. , the bore diameter is 0. On the Design tab, select Cylinder in the tree control.