Keyway Depth. Step Machine Key Stock. 1875 0. Figure 3 shows a shaft with a reversed torsional fatigue fracture starting at the keyway. Same insert holder for ID and OD broaching: Simply by rotating insert holder 180 degrees. Torque is measured in degrees is calculated using Torque Exerted on Shaft = Force * Shaft Diameter /2. Torque Capacity of Shaft T = π D 3 τ / 16. S. τ = 16. 1. Estimate the taper length for the workpiece having major and minor diameters as 12 and 6 inches, respectively. A list of standard keyway and corresponding key sizes for English shafts are listed below in Table 1. ALL calculators require a Premium Membership. clearance fit bores with set screws. 8mm 2. js9 widthShaft and hub keyway dimensions Keyway size chart pdfMetric key keyway dimensions. com. 8mm 1. The keyway cutter is by far the better tool to use, better fit of the key, easier to set up on center. T . (Dimensions comply with DIN 6885/1) † Requires use of chamfered keys. Torque (foot pounds. com The. 1. 5 times the shaft diameter to ensure a good load distribution over the entire key length when the shaft loaded in torsion. The following tables show standard dimensions for keys and their grooves. Shaft Calculator. The hollow core slab keyway geometry on my project has a very small "indented section" which would allow for a calculation similar to a typical 2x4 keyway + dowel calculation in conventional concrete design. 3 12 8 45 50 14 3. This technique is used for parts like a gear, hub or pulley. Welcome to the forum. 6 when the torque. Hole tolerance for diameters not defined by ISO 286-2. 1The CNC Keyway broach cut time calculator performs the following: Roughly calculates cycle time when keyway broaching in a CNC machine. In this case, the torque that can be transmitted when a key is added to the shaft is approximately 12 percent lower than the torque that can transmitted by the plain shaft (393 Nm vs 447 Nm). In general, we do not transfer the bending moment through the shear key though we allowed transferring the shear forces. CNC Machinist Calculator Pro is a machining calculator designed for manufacturing engineers, machinists, CNC operators, tool & die makers, and at home hobbyists. Woodruff keys cannot carry the same load as long parallel keys. The slot is defined as a keyway or a. Shaft diameter d k: Local diameter at the critical area (grooved section). ] normal min. These formulas are applicable for the tight connection. 350 Maximum 2. BOTTOM OF SHAFT TO BOTTOM OF KEYWAY. NSI Shaft and Hub Keyseat Dimensions for Woodruff Keys per. Deadbolt Latch has round corner faceplate. The length of the coupling hub keyway is 4 inches long and it is also 3/8″ deep. ) Withdrawn Application number CN 88204457 Other languages Chinese (zh) Inventor 左建中 陈玲珑(a) The depth of the keyway weakens the shaft. BS 5686:1986, ISO 14-1982: Specification for straight-sided splines for cylindrical shafts: metric nominal dimensions, tolerances and gauging requirements. ANSI woodruff size charts express measurements in inches and nominal key sizes with higher numbers corresponding to bigger keys. Sprockets come in a wide range of tooth counts for each ANSI chain size. 015. You must enter at least 2 items Shaft Diameter (in): Key Width (in): Key Height (in): You must enter at least 2 items Shaft diameter (D) = Key width (K) = Key. 5000 2. 5. In this calculation, a contact of a sphere with a diameter D and a flat plate is considered. Key length = (Required torque) x (load factor) ÷ [ (shaft radius) x (key material shear strength) x (key width)], all in consistent units. Nominal Dia. 3mm 2. Keyway Width = <%=w %>. It also determined the range. 33. L e The effective length of the key = 70-2*4 = 62mm = x (calculated above = 2,94mm,The calculator has been tested, but no guarantee can be given for the accuracy of the results. In put in column F on the input page. Touch and hold on a calculated number to copy to the clipboard. Metric key keyway dimensions per iso/r773. Measure the overall length of the boss (hub) of propeller Measure the keyway width. Regardless of which unit of length you're using, you'll need to measure the following: width, height, and length. Also calculated are the overall measurements for shaft and bore, as well as the chord height. The height of metric keys decreases by 1 mm for every 100 mm of length. You can measure the taper bore of a propeller with digital vernier calipers. At the shop I work at, we've started making all kinds of keyways and I haven't found an app that does everything I'd like which are: - Calculate the dimension for programming the depth of the keyseats. The key length should be less than 1. Why BEST; Learning & Higher Education Discover how our products improve school security while meeting budget expectations. Keyway Width × Depth Setscrew 1/2 - 9/16 1/8 × 1/16 10-24 2 5/16 - 2 3/4 5/8 × 5/16 5/8 *Basically, I made a keyway calculator app that calculates the correct keyseat depth on both the shaft and the hub and also its tolerances based on the ANSI/ASME B17. 1*0. 9 20 12 76 86. The Woodruff key is a semi-circular disc and fits into a circular recess in the shaft machined by a woodruff keyway cutter. K s = K a K d / K w. 360 Minimum 2. of Teeth and the Chip Load per Tooth to Determine the Feed Rate (In. Metric key keyway dimensions per iso/r773. Setscrews are semipermanent fasteners that hold collars, pulleys, or gears on shafts. Shaft tolerance for diameters not defined by ISO 286-2. 0 to 45. b1Tolerance （h9）. imperial keyway calculator eicac web imperial keyway calculator key dimensions parallel keys are mostShown in the chart below are the single CORMAX™ keyways and their multi-milling (sectional) options. Material Weight Calculator Morse Taper info Add knurling info & calculator Add material removal calculator (volume) Add glossary of machining terms Add advanced scientific calculator options Add circle interpolation calculators to milling. For most machine shafts, however, analysis should. Keyway Cutter Hole Keyway Dimensional Data for MIlling Centers and Arbors - ANSI/ASME B94. CNC Push-Type Broaching Cycle Time Calculator. 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. Here is how the Shear Stress in Kennedy Key calculation can be explained with given input values -> 5. For the calculation, the elastic modulus E and Poisson's ratio ν. For deep slots reduce the Ft. Custom macro. For the calculation, the elastic moduli E1, E2 and Poisson's ratios ν1, ν2 of the contacting bodies should be specified. D o: Assuming a basic shaft size of 25mm . (2001) covers all the standard keyway and drilled sources of stress concentration. keyway chordial distance calculator and speed and feed added keyway distance from top calculator to free Excel file. zip file and run the setup file. We can either increase the diameter, or use a higher strength material. 2500 0. All dimensions are given in inches. keyways /keys dimension in accordance with BS 4235-1:1972: Specification for metric keys and keyways - Parallel and taper keys. This key stock is stepped to match repaired keyways in shafts or gears. Dynamic shear strength τ e: The ratio τ e /τ=C f ·C e /C m where C f represent the influence factors listed in eq(3. Mark the string where they overlap, then measure its length. 1890 0. Size, grade and types of bolts required 4. Globoid Worm Shaft Calculator. Download CNC Machinist Calculator Pro and enjoy it on your iPhone, iPad and iPod touch. The use of a calculator or gear ratio formula will help you to figure out how to calculate gear ratio and which ring and pinion to use. In a piece of scrap stock, drill and ream a hole to . Empty existingDefinitions: Keyseat: An axially located rectangular groove in a shaft or hub. b. Balance the assembly by adding balancing clay to the workpiece. Calculate keyway depth for mechanical engineering projects. 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 KEYWAY is a lightweight, flexible, tongue and groove joint made from PVC. 018 * 0. Standard External Metric Thread and Fastener Sizes M 0. The CNC Machinist Calculator Pro, a machining calculator app for smartphones, is designed for manufacturing engineers, CNC programmers, machinists, CNC operators, tool and die makers, inspectors, and at-home hobbyists who need to make quick calculations on the fly. Using this ratio, for a standardized keyway, it was found that the stress concentration factor for a torsion shaft (K ts) is 2. 5. Fmax = 1890 [kg] Now we can proceed to the final step, which involves calculating the force necessary when the grinding operation begins. KEYWAY is a lightweight, flexible, tongue and groove joint made from PVC. ASME Code states that for shaft made of a specified ASTM steel: Ss (allowable) = 30% of Sy but not over 18% of Sult for shafts without keyways. Drilling Calculators 4. 1 standard which is based on inch units. 2b. App calculates cut time based on keyway depth, length, & depth of cut. The letter is the tolerance deviation, the number the tolerance grade. Longitudinal joints between slabs have a keyway that is filled with non- shrink Portland cement grout or UltraHigh--Performance Concrete (UHPC). However, the fillet radius of the key seatSymmetry, which regulates the symmetry against the datum, is measured using a caliper, micrometer, or a coordinate measuring machine. A list of standard K s = K a K d / K f. It's also a great tool for quoting new work. Fax: (916) 993-3949. 5000 2. These woodruff keys are mostly used in machine tools and automobile shafts from ¼” to 2½” (6 mm to 60 mm) in diameter. Width of Key in Round Shaft - (Measured in Meter) - Width of Key in Round Shaft is defined as the width of the key that is fixed in between the shaft and the hub to prevent. CNC Machinist Calculator Pro is great for CNC programmers or machine operators who need to make quick calculations on the fly. • Keys DIN 6885 → Page 842. Load factor can range from 1. 045*(1-0. We use keyed shafts in the gear and shaft assemblies in general. Different forms of shear key at the joint between footing and basement wall are shown in Fig-3. - Show the tolerances based on ANSI/ASME B17. 5, Grade. The diameters listed in our chart is the outside diameter of the sprocket (Tip of the sprocket tooth). Input the number of teeth of the pinion and the gear. Nominal size. NSI Shaft and Hub Keyseat Dimensions for Woodruff Keys per. 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. Keyway width P9 tight fit (standard design) JS9 or N9 loose fit (requires written agreement) see also. • Determine torque in shafts from gears, pulleys, sprockets, clutches, and couplings. CORMAX™ offers 32 unique keyways, 128 level options, and continues to grow and evolve. The keyway calculator is a valuable tool that simplifies the complex process of calculating keyway dimensions. The key length should be less than about 1. Shaft Keyway Shear and Yield Strength. M. 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. To use this online calculator for Shear Stress in Kennedy Key, enter Transmitted Torque by Kennedy Key (Mt k), Diameter of Shaft using Key (d s), Width of Key (b k) & Length of Key (l) and hit the calculate button. (Ver. Each tooth’s cutting edge is a few thousandths of an inch larger than the one before. 2. For those engineers who wish to put a. D o: Assuming a basic shaft size of 25mm . 1. Here is the list of suggested updates. 3mm 3. - Show the tolerances based on ANSI/ASME B17. According to nominal size and fit type selection among running and sliding [RC], locational clearance [LC], locational transition [LT], locational interference [LN], force and shrink [FN] fits, size. 1 standard which is based on inch units. The taper angle calculator will return the taper per inch. 3mm 3. b2 tolerance （E9）. 3) Keyway fillet radius to be specified by customer. When the re-steel is insufficient to resist shearing pressures through the plane of the key, keyways are utilized. 5. 032 * 0. 14. 3 16 10 59 65 18 4. Hit the. 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. In other words, the shear force due to the lateral loads or due the applied loads are transferred between the structure by the shear key at the. Shaft with Keyway Torque Applied Deformation and Stress Equations and Calculator. 5020 2. Hardware ANSI Menu. 3mm 2. keyways & keys dimension in accordance with BS 4235-1:1972: Specification for metric keys and keyways - Parallel and taper keysWhy BEST. - The maximum tolerance describes the. • Find bending moments from gears, pulleys, or sprockets that are transmitting loads to or from other devices. Square Drives for Socket Tools ASA B5. Keyway Width. CNC Machinist Calculator Pro is a machining calculator designed for manufacturing engineers, machinists, CNC operators, tool & die makers, and at home hobbyists. A rectangular sunk key is shown in Fig. keyways /keys dimension in accordance with BS 4235-1:1972: Specification for metric keys and keyways - Parallel and taper keys. Torque Applied Deformation. 5. BEST Premium Cores and Keys Specifications CORMAX™ Keyway Examples General BHMA Standard BEST - SFIC Product Specifications A156. Unless otherwise specified, the shaft keyway is assumed to be standard. Where J, the polar second moment of intertia is:ANSI limits and fits calculator works in line with ANSI B4. The. 5 deep: T = (390 x 10 6 * 0. How 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. Shaft Calculator. 5mm) wide and KEYSEATING through a. Number and size of bolt holes 3. A. - Calculate the dimension for measurement of the keyseats. 5 deep: T = (390 x 10 6 * 0. and Canada) +1 781-373-6808 (International number) Forsale Lander. Next, loosen the two cap screws on the holder so that the body separates from the shank by about 3/16”. AGMA ASA Keyway and Bores Design Data including dimension and tolerances. After the concrete sets, KEYWAY can be stripped easily to be. 001 larger than the previously measured across-point dimension. 5000 2. 5. Select a Preset. Metric 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. Machine Design Applications, Equations and Calculators Structural Deflection Equations and Stress. Shown in Fig. 05 mm from the nominal value. A key is used for temporary fastening. 7E-5 = 635/(sqrt(2)*0. Select the Machine. ANSI limits and fits calculator works in line with ANSI B4. For: 0 ≤ b / r ≤ 0. The calculator employs a straightforward formula: Keyway Depth = (Diameter of Hub - Diameter of Shaft) / 2 Where: Diameter of Hub: The outer diameter of. 05) A = 2 [mm2] Now, we can calculate the actual maximum force to be used during the broaching operation, which is represented by Fmax. Various Geometric calculators 22. Cut precision keyways. 4mm 8mm 2mm 9mm 12mm 11mm 4mm 4mm 14mm 15mm DIN 7154, H7 Metric. Gun drilling Calculator 5. 2) equivalent stress should remain below the yield strength (linear elastic). CNC Machinist Calculator Pro is a machining calculator designed for manufacturing engineers, machinists, CNC operators, tool & die makers, and at home hobbyists. Typing 10. - Series EL couplings supplied withTo use the calculator, enter the module and number of teeth and the rest of the table should automatically update. FAQ. Below is a sprocket diameter chart we've put together to help you identify the sprocket diameter you need based on the chain size and tooth count. 3 ≤ a / b ≤ 1. For example, an ANSI 202 measures 1/16 x 1/4, while ANSI 1012 measures 5/16 x 1 1/2. dANSI_B17_1-Keyway_Dimensions. /Min. 045*0. A shaft may fail in one of three manners: shear, bending, or fatigue. But ensure the weakened shaft can support the load. Whether dimensions according to standard, special materials or production to drawing, as a manufacturer of parallel keys and wedges the company crummenerl-gmbh. D. Keyway chartStandard keyway dimensions Keyway calculator shaft depthKeyway-and-key-size. Enter your. Manufacturing High Performance Rotary Cutting Tools since 1977. 1-1967(R2008). Keyway chart pdf Metric keyway shaft depth reference dimensions diameter iso r773 width Keyway calculator shaft depth. Keyway Depth Calculator – Calculate Keyway Depth OnlineFor a solid steel shaft of 18mm diameter, with keyway 6 wide x 32 long by 3. 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. 1051 Aviation Blvd. Parallel keys and corresponding key seats are standardized component by ANSI B17. Surface treatment, including black. Select the Woodruff Cutter from the tool menu (Note: Keyseat cutters are referred to as Woodruff cutters for feeds and speeds):The gear calculator is a comprehensive software which, after inputting various parameters related to gear calculations, computes on-line automatically gear sizes, strengths, working forces, tooth forms, backlash conversions, etc. A Shaft key is a piece of metal used to connect a rotating machine element to the shaft. A calculation aid for computing the appropriate endurance stress. Keyway misumi chart Shaft key seat depth control values s and t for shaft and hub ansi b17. Feed; No. Hub keyseat has been sometimes referred to as a keyway. It's not like keyways are particularly hard to figure out, like the math isn. Also calculated are the overall measurements for shaft and bore, as well as the chord height. Keyway chartStandard keyway dimensions Keyway calculator shaft depthKeyway-and-key-size. 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. The key and key seat cross section are ISO standardized. Fits and tolerance calculator for shaft and hole tolerance calculation according to ISO 286-1 and ANSI B4. Calculate the shear stress and crushing stress of a keyway connection with a prismatic key of a length L, height H and width b on a shaft of diameter D in a keyway of depth t. Product description. They include the required shims to ensure full keyway depth. This calculator uses expected shear stresses as the expected failure mode, and subsequently as the basis for shaft sizing. The keyway in the hub is made in the usual manner. Motors and gearboxes that generate high torque and acceleration may make shaft keys obsolete. Press the Calculate Button. See Page 2 for Optional P9 & D10 Keyway Dimensions H WKeys 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. 3 5 5 18 22 6 2. In this flat idler, the string measured 10 1/4''. Metric Calculator. 3mm 2. This feature was added by the. Simply nail or staple KEYWAY to the form or header prior to pouring the concrete. mm . The keyway radius was measured at 0. clearance fit bores with set screws. They have no effect on the moment capacity of the wall joint. Torque Applied Deformation and Stress of a Shaft with Keyway Section Calculator. Enter the size of the key and shaft, and get the depths, overall measurements, and chord height for shaft and bore. Eng. The code also applies a factor of 0. Speed and Feed Calculator. . Depending on the keyway, Corbin & Russwin generally used depth increments of . The usual proportions of this key are : Width of key, w = d / 4 ; and thickness of key, t = 2. For a key to function, the shaft and rotating machine element must have a keyway, also known as a keyseat, which is a slot or pocket the. Enter Cutter Diameter and Surface Speed to Calculate the R. 3 10 8 39 44 12 3. 2515 0. CNC Machinist Calculator Pro is great for CNC programmers or machine operators who need to make quick calculations on the fly. This calculator considers maximum permissible shear stresses as 8,000 psi for shafts with allowance for keyways and 6,000 psi without keyway allowance. There should be a top clearance between the key and the keyway in the bore. Machinery's Handbook calls this the m dimension, the amount you need to mill off the dia. Shed Design. 0 m) depending on concrete properties,The keyway turns out o be more critical than the shoulder. 2 continued. Fatigue strength: The ratio τ e /τ=C f ·C. 1 and C m is the ratio of elastic limit and the ultimate tensile strength. ANSI Standard Woodruff Keys ANSI B17 2 1967 R1998. Select the Machine. CNC Machinist Calculator Pro is great for CNC programmers or machine operators who need to make quick calculations on the fly. Keyway Stresses for Non-metallic (phenolic laminated materials ) Gears Formulas and Calculator Power Screw Design Equations and Calculator Gear Ratio Equations and Calculators of Planetary or Epicyclic Gear Assemblies Gear. KeyWay /Key Dimensions. Male Keyway Broaching:. , New Berlin, WI 53151-7953 USA Telephone: 262-796-4060 August 2003 Fax: 262-796-4064 e-mail: info@rexnord. O aplicativo KEYWAY se destaca no dimensionamento do comprimento da chaveta, principalmente por sua simplicidade de uso e agilidade em fornecer respostas. it is my belief all 21st century machinist should be taught the basics of using Excel or the free Open Office Calc program Nearly every shaft diameter has a corresponding standard keyway width and depth – this calculator helps you find it. 024. Unless otherwise specified, the shaft keyway is assumed to be standard. Equivalent stress: σ = F / (π* (d0 / 2)2); d0 - smaller thread diameter; Safety factor: K is less from the ratios: Ft / FH and [Ft - FH] / FK*μ. 8 4 4 13 17 5 2. -ail: salesglenaircoRe: what should be the length of key way for 155 dia shaft. Feed Rate. CNC Machinist Calculator Pro is great for CNC programmers or machine operators who need to make quick calculations on the fly. Nominal size. Truss Calculator. Fit is defined as the degree of freedom of tightness between the mating parts in an assembly process, it is also defined as the relationship between the hole and the shaft during the Assembly is called Fit. For example, Gear drives, Pulleys or Sprockets are connected securely using keys to the power transmitting shaft. | Lincoln, CA 95648. 12 Same as above, for shear 13 Alternating torque, usually very small or zero. Just enter the size of the key and shaft, then click "Calculate". Export G-code for internal & external chamfers, tapers. The housing locates the bearings on their outer rings and receives the thrust loads. The maximum stress is calculated as σ max = K t σ nom, where K t is the stress concentration factor as determined from the plot below, and σ nom is calculated as: Cannot display plot -- browser is out of date. The following info was entered: Bore Size = <%=b %>. CNC Machinist Calculator Pro is great for CNC programmers or machine operators who need to make quick calculations on the fly. 2515 0. CNC keyway calculator 23. This is why we allow the book. View All Posts. The key length should be less than about 1. The placement of the slot for the keyway is critical as it needs to be dead in the center of the shaft since that is. Created Date:Use individual keyway broaches in a variety of arbor hole sizes. 1. Shaft model is considered to be carbon steel. Try our Keyway Depth Calculator. Easily mold a keyed tongue and groove construction joint with KEYWAY. of Teeth . Total Height (X) =. CNC Machinist Calculator Pro is a machining calculator designed for manufacturing engineers, machinists, CNC operators, tool & die makers, and at home hobbyists. Bushings for smaller arbor holes are collared for easier handling. Free engineering tool to calculate the bending moment and shear force diagrams of a multi-diameter shaft. Parallel keys DIN 6885 are only in packing units of 50 pieces for each. The hub keyway is dimensioned by its width and depth on the shaft – keyway sides. All key systems written before 1970 are called Pre70. Nominal Length L - 6 8 10 12 14 16 18 20 22 25 28 32 36 40 45 50 56 63 70 80 90 100 110 125 140 160 180 200 220 250 280 320 360 400 Tips:seclect Nominal Length L and get Weight . Metric – Rectangular B. 6 mm and the shaft diameter is 25. Simply nail or staple KEYWAY to the form or header prior to pouring the concrete. Shaft Key Seat Depth Control Values S and T for Shaft and Hub ANSI B17. (916) 408-2442. Total Height (X) =. End mills are the only tools that can mill closed slots that are: Straight, curved, or angled; Wider than tool diameter, designated pockets; Heavier slotting operations are often performed using long-edge milling cutters. 414 Maximum 2. Select your units as required. 000 Standard Setscrew Locations If one setscrew is furnished the location. Rectangular sunk key. 1 The appearance of an overload failure depends on whether the shaft material is brittle or ductile. Calculate the values required to cut keyseats and keyways with this online tool. Shaft with Two Keyways Torque Applied Deformation and Stress Equations and Calculator. Latch has adjustable backset 2-3/8" to 2-3/4" to fit all standard door preparations. b. Key dimensions: Parallel keys are most commonly used. Turning Calculators 2. 13 Loads on LSS [X] [. 1 August 15, 2007 1 17. CNC keyway calculator 23. We also have an Imperial Keyway Calculator. Save Save Keyway Sizing Chart For Later. 360 Minimum 2. Max. S s = Yield Stress of Key. Keyway Depth (Normally 1/2 of width) Total Height (X) =. The calculation is designed for geometric designs and strength checks of shaped couplings of shafts with hubs. Minimum keyseat width is that figure. Bolt_length_calculation . Select the Material. The tolerance zone for shaft keyway width b with normal fit is ISO N9 and with close fit ISO P9. The Shaft Design Book (Design Charts and Calculations for Torsional Properties of Non-Circular Shafts). Download Setup. To set up the Woodruff Cutter cut in the Calculator, we go left to right, top to bottom: 1. Be sure to check that the key fits tightly in the shaft keyway; that the key has a sliding fit (but not be too loose) in the coupling hub keyway; and that the key has a clearance of 0. 045). Triangle Solver 22. Calculate cycle time when push-broaching in a CNC Mill or Lathe.