They are also designed to protect a power transmission application by failing first, which protects other component. A Keyway is a slot of some kind that is used to align the part on a shaft and prevent the part slipping as the shaft rotates. Standard Tolerance Limits and Fits (ANSI B4. 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 7 1/2 9 Square Keys preferred for shaft diameters above this line: rectangular keys, below Key 3 3/4 4 1/2 5 1/2 Shaft Key Size Versus Shaft Diameter ANSI B17. 90 3. WooHoo! You subscribed successfully. 0010". 53 2. 125. Rotary Shafts - Straight with Keyway Grooves. 25 - M 1. clearance. Refer to the Factory for larger coupling sizes. 0. However, determining the final limits can be time-consuming and involve navigating complex charts. The upper surface must be located within two parallel planes at a tolerance value of 0. Keyway width tolerances per BS 4235 P9 fit. Here, you can find detailed information about these machine elements. Table 1 details the appropriate key slot and key sizes for various. Shaft Diameter. ISO 286 Chart Calculator. The hole basis fits have four preferred hole tolerances (H11, H9, H8, and H7); the shaft basis fits have four preferred shaft tolerances (h11, h9, h7, and h6) as shown in Table 6-1. 1 0. 0005-. Surface Finish — Sides and bottom of keyways shall not exceed 250 micro inches. Parallel keysKeyway shaft roymech tolerance Shaft standard key sizes rectangular gates keys diameters most non std readily availableParallel metric keys and keyway dimensions. Bore Tolerances Keyway & Setscrew Sizes. ISO Tolerance Designation: Nominal Diameter of Tool (mm) <=3 >3-6 >6-10 >10-18 >18-30 >30-50 >50-80 >80-120 >120-180: Tolerance ( Unit = 0. Key Dimensions The inch and metric dimensions here. Keyseat Alignment Tolerances: A tolerance of 0. Interference Fit Bore Tol. General dimaensional tolerance of cut width Unit:mm Table 2. Keys and keyways BS 46 Part 1 : 1958 Keys and keyway Dimensions-Parallel Rectangular Adve Radius 0. 1 Standard. BS 46 Rectangular Taper & Gib Head KeyWay & Key Dimensions. Keyway metric key iso dimensions standard keyways keys r773 pdf bores shaft hub. 1 1. Check Details. 18. It may be mildly magnetic. Straight Sided Spline Dimensions. 4375 1. FREE RUNNING: Good for large temperature variations, high running speeds. KEY DIMENSIONS AND TOLERANCES ;El PARALLEL t. Metric Keyway Tolerance Chart. MSC#36883692 Mfr# H 24 MM. 002" / - 0. download Table Of Tolerances From Here. com ©2004-2021 Kramer Power Equipment Co. E-157 Sprocket Tooth Dimensions Sprocket Tooth Dimensions THR t1 t2 t4 M3 Single Hot Rolled Steel PlateKEYSHAFT Keyed Shaft, Diameter 3/4 in, Keyway 3/16 in x 3/32 in. Keyway Bore (inches) Reference Height (d) Keyway Width (w) DIN 7154, H7 Metric Bore and DIN 6885, Js9 Square Keyway Tolerances Minimum 1. 127 0. 2 Woodruff Key Size Table Chart ANSI B17. 02 0. Keyway Depth Keyway Radius Hub "T2" Max "R. View Alternatives. 018: 4: 0 -0. The primary function of keys and keyways. 8mm 1. 3 90-400-0. Shaft Key Seat Depth Control Values S and T for Shaft and Hub ANSI B17. - Series F couplings supplied with 4) All dimensions per AGMA 9002-A86 interference fit bores without set screws commercial standards. It is not economical to “over-tolerance” a feature that does not require it. # Tolerance each on T1 and T2 (1" -14") is - . 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 The hub keyway is dimensioned by its width and depth on the shaft – keyway sides. Enter your desired preferred tolerance grade and the nomial size. Only the range of key lengths and dimensions of keyways differed for machine tool applications. i have had more problems with internal keyway not parallel to bore more than . 19-1997 ; Keyway Stresses for Non-metallic Gears and Shafts. 96 3. 469 Minimum 3. 3/32" 1/8" 3/16" 1/4" 5/16" 3/8" 1/2" For Shaft Keyway Height. We stock pre keyed shafting in many diameters, including metric diameters, with standard keyways. 2. H9/e9. 3 8 7 31 38 10 3. 25 - M 1. Standard. Metric key keyway dimensions per iso/r773. keyway js9 tolerance chart secure4 khronos web may 21 2023 the same and is only listed. The dimensional charts below relate to metric rectangular keyways and metric rectangular keys, imperial rectangular keyways and imperial rectangular keys and imperial square keyways and imperial square keys. industry accepted ANSI/AGMA 9002-B04 Standards’ tolerance for common keyways and clearance fit bores unless otherwise specified. A key is a machine element that is used to join a rotating machine element to a shaft. 1 Nm. 6. ISO Tolerance Zones, Allowances, Fit Tolerances Inside Dimensions (Holes) ISO tolerance zones, allowances, fit tolerances; Inside dimensions (holes) acc. 020 0. XXXX 0. Failure to do so Notes: Inch bore and keyway tolerances conform to ANSI/AGMA 9002. Because this tolerance is looser, fabricators can secure it by hand. D. The last two digits give the nominal diameter B in eighths of an inch and the digits preceding the last two give the nominal width W in thirty. • Explain the straightness tolerance. Adriaan. For more exact dimensional data, please check the specific drawing for each catalog number. Specifies that statistical process controls can be used which may be more cost effective in some. Keyway Cutter Hole Keyway Dimensional Data for MIlling Centers and Arbors - ANSI/ASME B94. Don’t forget that the world-famous All Torque Transmissions keyway chart is available on our. In October’s column, I mentioned the typical tolerance for key- ways. anit. 500" The runout table roll diameter is 5 250" with a keyway of 1 250" x 0 625" Maximum shaft gap is 7 00" long 1 . Fits and tolerance calculator for shaft and hole tolerance calculation according to ISO 286-1 and ANSI B4. 0. For interference fit with setscrew over keyway, see Table 2. 3 6. Keyway (Hub) Radius r. Key & Keyway Dimensions - Millimeters. , New Berlin, WI 53151-7953 USA Telephone: 262-796-4060 August 2003 Fax: 262-796-4064 e-mail: [email protected]: 0. 7500 3. It covers the principles of bearing selection, the bearing interfaces, the tolerances and resultant fits, and the lubrication and sealing systems. Cut it to length to create the machine key you need. 2180 Corporate Lane, Suite 104 ~ Naperville, IL 60563 USA Phone (630) 596-9000 Fax (630) 596-9002 E-mail: [email protected]") 0. KeyWay /Key Dimensions. 10. Just enter the size of the key and shaft, then click "Calculate". May 13th, 2019 - Square Keyway Tolerances 3 8 3750 7 16 4375 Page 1 of 6 PFEIFER INDUSTRIES LLC 2180 Corporate Lane Suite 104 Naperville IL 60563 USA Maximum 1 6885 0 3770 1 869. Sure-Fit or Extreme Variability of Mechanical Tolerances Calculator. Referencing Figure 1, the keyway dimension is W x T 1. 1/16" 3/32". 1 Square Keyway Tolerances. 0010". 000 Keyway Depth ( t ) All sizes +0. Keyway Formulae Inch Square (Preferred) Parallel Keys and Keyways (ANSI B17. Since they fit more loosely than standard keys, these undersized keys are best for uneven keyways or when you need to disassemble. 3) Keyway fillet radius to be specified by customer. Metric External Table Chart Thread Designations Sizes M 1. The tolerance system for metric threads is composed of a two sets of a number followed by a letter. About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright. Dimensions in millimetres. Keys and keyways are a very important part of shafts and power transmission. The bushing system described in this standard is limited to systems having the following characteristics:. web keyway js9 tolerance chart the keyway broaches made of hss in tolerancejs9 p9 h9 according to din 6885 are furnished with shims and for the use on materials up to hrc30 br285 tolerances h11 h9. Metric Key & Keyway Dimensions Per ISO/R773 – Js9 Width Tolerance «. Keyway Connection. Bore Size Identification System. Another name for a Keyway is a Keyseat, since the Key is seated in the Keyseat. 1-1943 Standard. Metric Keyway Tolerance Chart. Shallow keyway depths must exceed 2/3 of the full keyway depth of the square keys shown above. . 000. Select the Machine. Shaft Diameter. --keyway dimensionsStandard keyway dimensions Keyway metric key dimensions standard keyways keys bores shaft hub depth iso diameter engineering table edge width. The advantage of the Js9 tolerance is that the key can be inserted and the gear manipulated without much difficulty. 2 Tolerance of a basic size for specific tolerance grade. * 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). 0000 /-. DIN 6885 Keyway, Key Details Extract Page 1 High Type d b* P9 / JS9 / D10 Hub keyway b* P9 / N9 / H9 Shaft keyway h t 1 = d + t 2 t 2** t 3 = d – t 4 t 4. 1-1967, R1989) Metric Square & Rectangular Parallel Keys & Keyways (B. The bottom circular part is hammered into the shaft and the top flat part is inserted into the hub keyway. Woodruff Keys. Keyway chart shaft sizing engineeringKeyway sizing chart Agma keyway bores engineers edge asa data fit llc copyright 2000 2021Keyway dimensions table aii. 1Woodruff Keys. Parallel Metric Keys and Keyway Dimensions - Roy Mech. Key. BS 4235-2:1977, ISO 3912-1977: Specification for metric keys and keyways - Woodruff keys and keyways. Moorland Rd. Over To (Incl. 2515 0. • Define the cylindricity tolerance. 0640 0. DIN 178. Rectangular sunk key. 3mm 2. Recommended Hub Keyway Dimensions (mm) Reference AGMA 9112-A04 Standard metric keyway width tolerance per Js9 Imperial Standard Bore and Keyway Info Recommended Bore Tolerance for Imperial Shafts (Inches) Nominal Shaft Range Shaft Tol. S2=Tolerance of h× 2 1 S1=Tolerance of b× 2 2. standard mounting assembly for qd sheaves and sprocketsThe maximum bore size is dictated by the requirement that the strength of the hub is to be higher than that of the gear teeth. Slope Key, Gib Head Key and Key Groove Key Nominal Dimension b×h Dimension of Key Groove Reference Reference Dimension of b1, b2 (Sliding Type) Standard Precision Class r1 and r2 Reference Dimension of t1 Reference Dimension of t2 Reference Dimension of t2, t1 Applicable Shaft Dia. Tolerance for Lengths of Chamfer Portions (Corner Roundness and Corner Chamfer Sizes) Unit [mm] Tolerance class. ex: H11. This is an undersized clearance. 010 Height (d) (t) - DIM Keyway Width (w) AGMA 9002-A86 Inch Bore and ANSI B17. 4- Some internal Grade values must be rounded down to a precision of 3 decimal metric millimeter precision. ISO/R 773:1969. The fit designation ranges from clearance fits to interference fits. QUICK FLEX® with black insert high-speed split cover Part # Torque Nm Max Bore mm Part # Torque Nm Max Bore mm 1035G 16,373 124 QF1000 35,081 140 1040G 24,915 146 QF1000 35,081 140 1045G 34,169 171 QF1890 62,597 175 Falk® Gear Type GL52 - Single Engagement ISO 2768-1 stands for the general tolerances for linear and angular dimensions without individual tolerance indications, ISO 2768-1 indicates the linear dimensions and angular dimensions such as external sizes, internal sizes, step sizes, diameters, radii, distances, external radii, and chamfer heights for broken edges. 597 7/16 . • Define the perpendicularity tolerance. 1 Size Shaft Dia. Posted on February 1, 2023 in Industry Formulas. Provided by TNN Engineering. l 5 DESIGNATION A pair of tangential keys shall be designated by their. Related Resources: gears Shaft Diameter vs Key Sizes Design Recommendations. Download. Since they fit more loosely than standard keys, these undersized keys are best for uneven keyways or when you need to disassemble. i have had more problems with internal keyway not parallel to bore more than . 3 S2 6. 1875 0. Avoid tolerance buildup by dimensioning from another dimension, as cumulative tolerances will lead to dimensional. The key prevents relative rotation between the two parts and may enable torque transmission. Metric keyway tolerances conform to ANSI/AGMA 9112 Normal keyway width tolerance. The usual proportions of this key are : Width of key, w = d / 4 ; and thickness of key, t = 2. DIMENSION TOLERANCE ` FRACTIONAL 1/64 ANGULAR 0. 5000 2. 010/-/000 for all standard keyways. Standard size classification. clearance fit bores with set screws. 5000 2. In general, the dimensions contained in ANSI/AGMA 9002A86 represented the dimensions and tolerances used within the industry for pre- -TruKey® Shafting from Keystone is designed to provide the straightest, most accurate keyed shafting, in the industry. --keyway dimensions Keyway sizing chartDimensions standard keyseat keyway shaft shafts diameter nominal. Top. Keyway designation Key bow Chain hole Key cuts Keyway milling Serialization code Key blade Key stop tip Series keymark. 93. 5 +. 002″ The MMC is 0. 5000 2. Nominal Shaft Diam. The first is Js9. Hole and Shaft Tolerances range from greater than 0 to 500 mm. General tolerances for parts formed by shear from metal plates Table 1. Key Depth Tolerance is +. This Calculator will determine the preferred size and limit tolerances for Running or sliding to interference-locational fits per ANSI B 4. A list of standard keyway and corresponding key sizes for English shafts are listed below in Table 1. 000/+. Web Price. A Key goes into the Keyway to lock things up. In order to avoid stress concentration, leave radii on the keyway corners. 90 2. 000 -0. Inch (ANSI/AGMA 9002-B4) Metric (ISO/R773) Metric Key & Keyway Dimensions Per ISO/R773 – Js9 Width Tolerance «. 500. Question: Metric Key Keyway Dimensions Per ISO/R773. 01 A1-800-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 DimensionsBased on standard tolerances and limit deviations in accordance with ISO 286. 3 16 10 59 65 18 4. W is the key width. Standard External Metric Thread and Fastener Sizes M 0. Keyway chart sizing key shaft engineeringShaft diameter solid keyway uniform shown re text below factor gears safety transcribed show Metric key keyway shaft standard keyways falk keys bores resources. BS ISO 4156:2005_1: Straight cylindrical involute splines. This is an undersized clearance. dimensions. GD&T is an important tool that helps engineers communicate the tolerances of a design. Care should be observed when removing the plugThe chart below lists all standard US Digital encoder sizes and their relative shaft and bore tolerances. Sprocket - Keyway Tolerances. This key stock is stepped to match repaired keyways in shafts or gears. --keyway dimensionsKeyway chart diagram hallite. H7/g6. Metric module, side fit. 062 0. ANSI B17. Preferred Tolerance Grade Zones ISO 286 * International Tolerance Grades ; For more exhaustive fastener tolerance data see:each side of the keyway offers creation of virtual keyways for a key control system along with the special actual keyway for the keys. The second is a P9 tolerance. Shaft ends Diameter tolerance: Center bores according to DIN 332, shape D [in], shape DR [mm]: Keys: according to DIN 6885. • Define the flatness tolerance. 5 times the shaft diameter to ensure good load distribution over the key length when the shaft is loaded in torsion. LOOSE RUNNING: Fit for wide commercial tolerances. Class V Locational Interference Tolerance Table Chart; Class II Fit Free Fit Tolerance Chart for Holes and Bolts per McDonald Douglas Design Guide "Machining Tolerances". Don’t forget that the world-famous All Torque Transmissions keyway chart is available on our website. 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. Cut keys to custom lengths. 4 Coupling Interchange Chart Gear Couplings QUICK FLEX® with black insert high-speed split cover Part # Torque Nm Max Bore mm Part # Torque Nm Max Bore mm 101 1,140 44 QF25 1,407 50 101-1/4 1,756 47 QF50 2,992 60ISO 2768-1 stands for the general tolerances for linear and angular dimensions without individual tolerance indications, ISO 2768-1 indicates the linear dimensions and angular dimensions such as external sizes, internal sizes, step sizes, diameters, radii, distances, external radii, and chamfer heights for broken edges. 40. 1 +0. to DIN 7157, 1. Many keyways are milled directly into a shaft or broached into the. 2; ANSI Shaft and Hub Keyseat Dimensions for Woodruff Keys per. 105 8 Final NIST. 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. WIDTH. 99. 35 7. Oversized. 246=0. Browning. 5020 2. dimensions standard keyways keys r773 pdf bores shaft hub depth diameter standards engineering table edge widthKeyway tolerances bore Keyway dimensions table aiiShaft standard. 30302 is a webpage that provides comprehensive guidance on how to select, install and maintain rolling bearings for various applications. 2) Dimension h of the taper key names the largest height of the key, and dimension t z largest depth of the hub keyway. 4. Drive shaft Design, key and Keyways. A small tolerance key and keyway helps to reduce stress concentration and increase safety. Design of Square Key and Keyway (Wood Ruff) Stress, Shear. DIN 6887. 653, the lower limit (smallest value) is 16 (A) Direct limits 4. $17. 010 inch, max is provided for offset (due to parallel displacement of keyseat centerline from centerline of shaft or bore) of keyseats in shaft. The common Contact. 246″ If the actual bore measures 0. 095 . However. ANSI-B17. Iso Keyway Tolerances P9 Pdf Right here, we have countless ebook Iso Keyway Tolerances P9 Pdf and collections to check out. All Dimensions in inches. 3 h2 = h, f = h, e ≒ b S1 = b's tolerance×1 2 S2 = h's tolerance×1 2 6. pdf New year, new designs tips. 7530 3. Hub Keyway Tolerance . No external keyStandard Keyway Dimensions Shaft Diameter Set Screw Width Depth Up through 7/16" 8-32 3/32 3/64. keyways available upon request. 4 3 3 11 12 4 1. Straight-sided splines for cylindrical shafts with internal centering — Dimensions, tolerances and verification. TOLERANCES ISO. Since they fit more loosely than standard keys, these undersized keys are best for uneven keyways or when you need to disassemble parts. For a key to function, there must be a keyway on the shaft and a keyseat on the rotating machine element. XXX 0. ISO Tolerance Calculator (Explained) Our tool is a fit/tolerance calculator that is addressed to students, employees, and apprentices (trainees) in all technical sectors. Referencing Figure 1, the keyway dimension is W x T1. tolerances according to ISO 7H (shaft spline) and 7n (internal spline) are recommended. A list of standard keyway and corresponding key sizes for English shafts are listed below in Table 1. Recommendations for key size, length and keyway depth as a function of shaft diameter are provided in ASME Standards B17. 19-1997 ; Keyway Stresses for Non-metallic Gears and Shafts Formulas and Calculator; Shaft (Arbor) Keyway Dimensionl Data - ANSI/ASME B94. ) It establishes symbols, rules, definitions, requirements, defaults, and recommended practices for stating and interpreting GD&T and related requirements for use on engineering drawings, models defined in digital data. TB Wood’s 888-829-6637F1-3 Sure-Flex Plus® Applications Sure-Flex Plus couplings can be found hard at work in many industries. Their extra depth in shaft reduces the overturning tendency in its keyway. These size charts do not compensate position or other GD&T location tolerances. 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. The calculator has been tested, but no guarantee can be given for the accuracy of the results. 032 * 0. 3mm 5mm 5mm 5mm 5mm 6mm 6mm 6mm 8mm 8mm 22mm 24mm 16mm 17mm 19mm 20mm 25mm Keyway Width (w) 10mm 3mm 3mm 1. Created Date: 6/24/2022 11:29:26 AM. Keyways Index BS 46 Keys and keyway Dimensions-Parallel Rectangular Ref Standard . 1 0 : 1. 5 +10 +14 +60 +12 +16 +20 +28 +39 +60 Keyway dimensionsKeyway sizing chart Metric stepper motor shafts size data tableMetric key keyway dimensions per iso/rtt3 js9 width. Temporarily out of stock. BOTTOM OF SHAFT TO BOTTOM OF KEYWAY. Keyway width P9 tight fit (standard design) JS9 or N9 loose fit (standard design) Other tolerances / tolerance ranges must be specified separately and require a written agreement. Shaft Key Seat Depth Control Values S and T for Shaft and Hub ANSI B17. 001" (. 1 SCOPE. 180. 8mm 2. 127 R Max Typ See Detail B K Ø Ref KK Ø All Around MM Ø and Sides of T1 or T2. 2-1978 standards. 2 (1978) and ANSI B4. 3 Cross section of keyway r2 b2 r2 b1 b2 r1 b1 S2. Shaft Key Seat Depth Control Values S and T for Shaft and Hub ANSI B17. bore and key chart, keyway chart, keyway sizes. 2 metric standards . NEMA states only a minimum value for AA dimension. 1/16" 3/32". Here we can calculate rigid connections, namely the pinned, keyed, splined and flanged ones. d. center of the keyway. 00075 in/in (mm/mm) interference up to 1800 rpm and 0. 020: 0. 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). Woodruff key is essential for operating high speed. Chart shown later in this document gives the number of threads/inch based upon threads series and nominal diameter. Title:The opposite of a press fit tolerance. bore and key chart, keyway chart, keyway sizes. js9 width. The invention belongs to the technical field of measurement of the keyway symmetry degree, and particularly relates to a method for measuring the keyway symmetry degree of a shaft part. 1-1967, ASME standard B17. Contact. Descriptions of the Thread Series:. 19-1997 ; Keyway Stresses for Non-metallic Gears and Shafts Formulas and Calculator; Shaft (Arbor) Keyway Dimensionl Data - ANSI/ASME B94. 1875 0. 975-0. A. Coupling Sizes 1020T thru 1090T are generally furnished for CLEARANCE FIT with setscrew over the keyway. Geometric dimension and tolerance ( GD&T ) is a type of tolerance used along with linear tolerance to define nominal and allowable variations in the part geometry or an assembly. Key Size. 587 / 2. 90. BS ISO 4156:2005_1: Straight cylindrical involute splines. 2500 0. 3750. 020 0. 3- Special case for M6 from 250mm to 315mm tolerance. 0010. Oversized. edited by JENNINGS SAVANAH VEGANS GO NUTS Penguin This is a new release of the original 1956 edition. Note: 2. In a slip fit tolerance, a certain amount of clearance exists between mating parts. The tolerance band is the region between two parallel planes at a distance of tolerance value t. Strict Tolerances. Engineered to the same high standards as our patented systems, BEST Standard cores are made to the same strict tolerances and high standards of excellence in manufacturing as our patented options to ensure quality,. Hole-Drilling , Tolerances , Fitting. Woodruff keys work well near shaft shoulders and on tapered shafts. Slightly. Hole dimensional tolerances for regularly used ˜tting Units: µ m Standard dimension More than Not more than － － － － － － － － － － － － － － － ± 31 ± 26. Customer Service. required Minimum Coupling rating:Iso Keyway Tolerances P9 Pdf Eventually, you will unconditionally discover a other experience and attainment by spending more cash. . 2 once at the end of the h tolerance chart keyways js9 and p9 simcut ba keyway broaching insert js9 tolerance from 44 72 ex vat simcut bf keyway broaching insert c11 tolerance from 26 24 ex vatCommittee on Specifications and Tolerances of the 89th Conference Craig VanBuren, MI Jack Kane, MT Clark Cooney, OR Michael Sikula, NY Carol Fulmer, SC Ted Kingsbury, Canada, Technical Advisor Juana Williams and Richard Suiter, NIST, Technical Advisors Past Chairmen of the Committee Conference Chairman Conference Chairman 8-11 L. The hole basis fits have four preferred hole tolerances (H11, H9, H8, and H7); the shaft basis fits have four preferred shaft tolerances (h11, h9, h7, and h6) as shown in Table 6-1. ANSI Woodruff Keys. Positional tolerances is used to locate features of size from datum planes such as a hole or keyway and used to locate features coaxial to a datum axis. 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. Hub keyway depth is one-half the nominal height of the key and measured from the side corner. Whereas the P9 tolerance is a press fit tolerance. Metric key keyway dimensions per iso/r773. web keyway js9 tolerance chart the keyway broaches made of hss in tolerancejs9 p9 h9 according to din 6885 are furnished with shims and for the use on24mm Bore, 8mm Keyway Width x 3. They conform to ANSI B17. Shafts outside the listed range may present trouble with installation. Key Depth Tolerance is +. Keyway Depth. 002 on the key and 0. , depending on the lock nut size: ANSI/ABMA Std. Shaft Key Seat Depth Control Values S and T for Shaft and Hub ANSI B17. Each tolerance has a maximum and minimum. 5~ X. H7/h6. Key dimensions: Parallel keys are most commonly used. Types of Keyways: Keyseating broaches are used for producing keyway-shaped holes in a workpiece. The second is a P9 tolerance. 8 Lovejoy machines the bore in all Lovejoy Jaw style hubs with ‘metric’ dimensioned straight bores and keyways to meet the ANSI/AGMA 9112-A04 Standards’ tolerance forMain Key / Keyway Polarization Blue Stripe 0.