) See formulas in the Math Appendix, page Keyseats in. What is the maximum permissible center-to-center distance of the two large holes?22. 2 Woodruff Key Size Table Chart ANSI B17. The following tables show standard dimensions for keys and their grooves. 60000 | 41 Piece Woodruff KSC Set Straight. 03 Finished Straight Bores For Standard Finished Straight Bores AGMA Class 1 Clearance Fit For Standard AGMA Interference Fit Nominal Nominal Shaft Bore Dia. 25 wide w. 8 cannot be furnished. Frames 143 to 505S, inclusive: the h dimension is Diameter of Hole. You'll get a detailed solution from a subject matter expert that helps you learn core concepts. The following tolerances for maximum lead (due to angular displacement of keyseat centerline from. 328 — flat — 48 — 3. 00 - 1. Also calculates overall shaft and bore values, and. 19 ; Keyseat Design Tolerances for Electric Motors and Generators; Arbor Keyway Cutter Hole Keyway Dimensional Data per ANSI/ASME. They have an alternating right- and left-hand tooth style for removing more material at high speeds than straight-tooth keyseat cutters. Keyway chart din sizing dimensions woodruff engineering groove calculator. Keyway= able to slide through. 38 - . I somehow missed the link you provided. A single keyseat and one pair of set-screws are furnished as standard on all sprockets unless oth-erwise specified. Approximate weight for each hub. TB Wood’s 888-829-6637F3-1 L-Jaw Elastomeric Couplings F3 • 100% interchangeable with industry standard • 3 Insert materials availableP-1686-TBW 4/16. 015. When installing a woodruff key into a half moon keyseat, first press it into the semi‑circular groove which is milled into the shaft by a woodruff key cutter. 25-0. Max. 406 1. on diameter) provides proper wedging action. 75 2. The depth of the keyseat is measured where the width intersects the shaft diameter measured from a theoretically sharp corner. Table aii-12. The Metric system does not refer to keyseat or keyway dimensions as does the English system. Due to the curvature of the shaft, the depth of cut is greater than H=2, by a chordal height Y = 1 2. 5 2012 10028 248 7 28075 712214 11228 248 7 31580 762214 13238 3310 8 35585 762214 16042 37 128 *Contact your local Baldor office for “L” Dimensions. Key and Key seat DimensionsLeader in Energy Efficient Industrial Electric Motors and Drives L* AC E T6 LUG TERM BLOCKF8. 201 202 1/16 x 1/4 0. 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-seconds of an inch. box 2400 fort smItH,. Metric key keyway dimensions per iso/r773. Use the 2. Our massive line of Miniature Keyseat Cutters is unmatched in the industry, featuring hundreds of specialty sizes and styles. High Speed Steel TMX Straight Tooth Woodruff Keyseat Shank Cutter. B +0. 093" diameter, in uncoated and AlTiN coated styles, and in both standard and long length styles. All dimensions are given in inches. The standard key size for a straight key in a shaft is one quarter the shaft diameter. 25 2. “A” DIM. Thanks in advance. 00 1. Two types of woodruff keyseat cutters with cylindrical shank are specified:Key and Keyseat Dimensions. Specifying english keyways in the english system, it is standard practice to dimension keyways. TB Woods 888-829-6637F3-1 L-Jaw Elastomeric Couplings F3 • 100% interchangeable with industry standard • 3 Insert materials availableP-1686-TBW 4/16. keys per ansi b17 2 nsi shaft and hub keyseat dimensions for woodruff keys per ansi b17 2 continued these width a5 Protection against low pressure jets of. . TORQUE RATINGS AND DIMENSIONS Bush. 1 shows a keyseat for a shaft diameter D, key width W, key height H, and fillet radius r. * Common dimension specification H h r W T 1 T 2 T Standard Key and Keyway Sizing English Dimensions: Keyway: W x T 1 Key: W x T Metric Dimensions: Keyway: W x h Key: W x T Keyway and Key Size Dimension Reference Easily calculate the values required to cut keyseats and keyways. 375 1. In contrast, the keyway is the slot cut into the mating part to accommodate the woodruff key's flat side. Shaft keyseat dimensions and tolerances. 50 — 0. 2180 Corporate Lane, Suite 104 ~ Naperville, IL 60563 USA Phone (630) 596-9000 Fax (630) 596-9002 Keyway AGMA 9002-A86 Inch Bore and ANSI B17. . Position QD bushing on shaft by tightening set screw over key “hand tight” with standard Allen wrench only . Also, T 1 and T 2 are not necessarily equal. . 201 202 1/16 x 1/4 0. 41 per 100. bALDOR ELECTRIC COMPANy P. Weights are approximate in pounds. Inch (ANSI/AGMA 9002-B4) 1. They have an alternating right- and left-hand tooth style for removing more material at high speeds than straight-tooth keyseat cutters. Dimensions Keyseat Dimensions Fig. water from all directions, limited ingress. 1 july 03 “t” frame electric motor data chart 1. woodruff key If a column has a rectangular cross section of dimensions 90mm x 70mm, determine the two values of radius of gyration. Two PDFs with useful engineering data on keyway sizes and engineering limits and fits, just download. . We suggest coarse for non-ferrous, medium for titanium/stainless & maximum for cast iron and tough materials. 25 - M 1. Staggered Tooth. 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. (a) Find the torque T 2 transmits through shaft a and the torque and speed of the output shaft c. Parallel keysKeyway shaft roymech tolerance Shaft standard key sizes rectangular gates keys diameters most non std readily availableParallel metric keys and keyway dimensions. Inspection methods for straight and tapered bores and keyways are included in the annexes. Carbide Tipped Keyseat Cutters come in standard length and extra-long and in both. † For 4JSC the hub is an integral part of the flange. 408 unit. by22. Straight tooth keyseat cutters have teeth that are arranged in a straight line on the. The space between British ISO Metric Screw Threads Designations. State the minimum and maximum width sizes of the keyseat shaft. The height of the keyseat itself is not dimensioned because, once the top of the shaft is cut away, there is no feature left to measure. 69 2. The gap of the keyway is shown with tolerances again and the semi-gap is shown. Dec. Made of solid carbide, these keyseat cutters are harder, stronger, and more wear resistant than high-speed steel for the longest life and best finish on hard material. Standard Sizes. 19 ; As shown by the last equation in the box, key stress equals shaft stress when the key (or hub) length is 1. Dimension the keyseat in the shaft and the hub. American National Standard, B17. Class 3 is an interference fit: for permanent assemblies. For assembled8 products. 2388 State Route 726 Eaton, Ohio 45320 (937) 456-2232 Fax (937) 456-2282 [email protected] above chart provides typical Baldor•Reliance motor dimensions. 000/+. . Dimension the keyseat in the shaft and the hub. nema keyseat nema keyseat shaft dimensions shaft dimensions (u) (r) (s) (u) (r) (s)Dimensions for AC Foot-Mounted Motors with Single Straight-Shaft Extension NEMA®† Dimension Guide Frame A Max D E 2F BA H U N-W V Min. Metric key keyway dimensions Keyway metric dimensions key iso tolerance js9 r773 width per depth hub t2 height radius text mill question answered hasn Shaft diameter solid keyway uniform. The following standard containprovisions which, through reference in this text, constitute provisions of s. Dimension the keyseat. Hey, Just curious if anyone had run across Table 6 in B17. 328 Flat 48 3. Keyseat Cutters. 2 standards for dimensions and tolerances. Saw cut through flange and taper (and sometimes cut down into keyway also) to provide a true clamp fit. 4 DODGE® Motorized Torque-Arm™ II Application Class Numbers 3 to 10 Hrs per Day Over 10 Hrs per Day Mixers, Cement, Paper Mills (cont) – – Presses-Felt & Suction II II Pulper III III0 No Keyseat 1 Standard Keyseat X No Keyseat or Standard Keyseat Part Number Examples L095118 L095 x 1-1/8” Hub L07512NK L075 x 1/2” No Keyseat Hub L09515/16 L095 x 15/16” Hub Bore Tolerances Bore Size Tolerance Up to and +. List Price. The woodruff key's curved section is pressed into the keyseat. If limit dimensions (refer to Tables 13 M and W of the Appendix) were to replace the keyseat dimensions shown, what would they be?23. 2 1. Bore (in. BROWSE CATALOGWOODRUFF KEY DIMENSIONS ANSI Key No. For a square key, H= W. 020 mathrm{cfs} 0. Function of keyseat is to lock between main component and sub component like shaft and gear in transmission. 750-406-SGT: Price: $33. 3750 1. IP55 = All TEFC Chemical Processing, Dirty Duty, and Washdown Duty Motors IP Protection - baldor enclosures summary of IP ProteCtIon numbers baldor eleCtrIC ComPany P. 2: largest motor width. TB Woods 888-829-6637F3-1 L-Jaw Elastomeric Couplings F3 • 100% interchangeable with industry standard • 3 Insert materials availableP-1686-TBW 4/16. keyseat dimensions frame shaft keyseat dimensions 143t 213t 254t 1 1b4t 256t 2b4t 324t 364t 404t 444t 447t 29/64 33/64 49/64 63/64 1-13/64 1-13/32 b-11/16 16 10-13116 12- 4 12-3/4 5-7 16 -7 16 15- 16 ib-1 16 16 1 b-1/16 4 4 16 lg- 16 16 23- b b 23-11b 23 23 23 flat 3'16 3816 5/16 31b 2b6t 326t 365t 405t 445 2-11b 2-31bwith the measured keyseat (Figure 1). 0Dimensions for C-Face Brake Motor Systems Brakes Externally Wired to Motor C-face motor with double shaft extension. For keyseat, dimension is from the bottom of the keyseat to the other end of the shaft and for keyway, it is from the top of the keyway to the bottom of the hole. 000 all fillets r. Along with keyway size tolerances and keyway depth sizes, some standards also provide information on the recommended key size and keyway depth as a function of shaft diameter. Show your work below. 0625 0. 2 Woodruff Key Size Table Chart ANSI B17. ESR Motor Systems ESR Motor Systems, LLC • 648 E White St, Rock Hill, SC 29730 Phone: (800) 868-3770 • FAX: (803) 324-3259 NEMA – QUICK REFERENCE CHART Distance from the keyseat base to the cylinder axis, with the base dimension 1. 2; ANSI Shaft and Hub Keyseat Dimensions for Woodruff Keys per. 000/+. 194" 0. TB Wood's FC Prodcut Line Catalog - Warner Electricwoodruff keyseat cutters easy guide to keyway key keyseat web dec 27 2022 per bs 4235 1 1972 specification for metric keys and keyways parallel and taper keys woodruff. The following sections describe key and keyseat dimensions, keyseat failure, and key failure. The width of the keyway or keyseat is added additionally. However, the terms keyway and keyseat are often used interchangeably, and many sources refer to the keyseat as. For example, an XTB15 bushing for a 5/8” shaft would be ordered as part #XTB15X010. . TB Woods 888-829-6637F3-1 L-Jaw Elastomeric Couplings F3 • 100% interchangeable with industry standard • 3 Insert materials availableP-1686-TBW 4/16. 1 Keyway Dimensions - Lowell. Parallel Key and Taper Keys Dimensions. The shaft has a diameter of 1. 000 +0. MPa. Note: When ordering, add the Q-Style Bushing prefix BSHQD to the indicated part number. Shaft keyseat dimensions and tolerances were given in ISO R773:1969. 104 0. Saw cut through flange and taper (and sometimes cut down into keyway also) to provide a true clamp fit. 50 0. From drawing 21A020, calculate and enter the dimensions for the following letters as in Table (1). . 50 . Make sure it is properly centered and aligned to avoid any inaccuracies during the cutting processInversely proportional to (shaft diameter)⁴ A keyseat lowers ___. 0015” Over 2” +. What was the overall height of the casting before finishing? SECTION A-A SO-002 875-14 UNF-3A 0. TB Woods 888-829-6637F3-1 L-Jaw Elastomeric Couplings F3 • 100% interchangeable with industry standard • 3 Insert materials availableP-1686-TBW 4/16. Generally speaking square keys are sized to the nearest nominat size to 1/4 the shaft diameter. 2. = All TEFC Chemical Processing, Dirty Duty, and Washdown Duty Motors. Shaft (Arbor) Keyway Dimension Size Data -. 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. Product Info. Dimensions standard keyseat keyway shaft shafts diameter nominal Keys & keyways specification Keyway standard chart metric broach pdf charts broaches std Standard. This common phrase is misleading because it details the dimensions of neither the peg nor the hole. per ft. A #406 is by definition in the standard as being in inch units, do your own. Min. Keyway size chart pdf . 12 10 r. bOX 2400 FORT SMITH, ARKANSAS 72902-2400 U. Designed for cutting keyways and keyseats, these woodruff-style cutters. box 2400 fort smith, arkansas 72902-2400 u. Leader in Energy Efficient Industrial Electric Motors and Drives Key and Keyseat Dimensions FrameDGFGD FrameDGFGD 63 11 8. Question: When keyseats and keyways are dimensioned with leaders, the width dimension will appear first and the depth last shafts also require a kength dimension to assure fu keyseats are dimensioned by their number and their location on a shaft. This standard establishes a uniform relationship between shaft sizes and key sizes for parallel and taper keys as shown in Table 1. Sure-Grip bushings are designed to transmit the rated torque capacity listed in the table below when the cap screws are tightened as indicated. bearing pressure p = F s / (h/2 微) MPa. Details. Dimensions - N, O, P, AB and XO are specific to Baldor. 30 102 pt 2 column bracket. the ductility of the shaft c. 40 1. ) ROLLER WIDTH: 5. Saw cut through flange and taper (and sometimes cut down into keyway also) to provide a true clamp fit. 1; Hardware. Saw cut through flange and taper (and sometimes cut down into keyway also) to provide a true clamp fit. For precision f are dimensioned from shown below. 2-1967) appears to say that the depth of the keyseat from the edge of the opening is 0. The Woodruff Key numbers. 8 products. covering 66 listings. 1: all rough dimensions may vary by . the rigidity of the shaft b. Woodruff. b. Nominal Dia. nema keyseat nema keyseat shaft dimensions shaft dimensions (u) (r) (s) (u) (r) (s) Dimensions for AC Foot-Mounted Motors with Single Straight-Shaft Extension NEMA®† Dimension Guide Frame A Max D E 2F BA H U N-W V Min. Frame Designation AJ AK Tolerance on AK Dimension 0. ← Keyway Size Chart Pdf Standard Metric Keyway Size Chart Pdf →. Designed for cutting keyways and keyseats, these woodruff-style cutters are designed with dished sides for clearance and are stocked in a multitude of cutter diameters, cutter widths, and radial depths. Overview ANSI Standard Keys and Keyseats. 0 a shallow keyseat is required, SDS 1/2 1-11/16 1-15/16 2 1. Recommended ANSI Standard Keys and Keyseats Design per. Bore Tolerances for Type C Flanges These bores provide a slip fit. For Keyway Dia. Hole is something that involes Drilling. The standard dimensioning of the keyway is like above. This list contains 20 best practices related to architectural drawings. +0. bushings are of such a size Keyseat Keyseat Keyseat Keyseat that standard depth keyseats JA 1/2 1 1-3/16 1-1/4 . Keyways Index. This Standard covers the size, type and tolerances of parallel and taper keys and keyseats, and their relationship to shaft diameters and bore diameters. 002/ 0. Key and keyway dimensions (control in motion) Keyway shaft coupling hole service couplings modification additional motion control tapered parallel Keyway chart Standard shaft sizes. From the right side of the shaft total diameter is given with tolerances. 000 0. Look it up in Machinery's Handbook or some other shop reference. What dimension is indicated as not drawn to scale? 24. . 00 2. 9 c. 2. Please design and dimension the keyseat and draw how does it located in the shaft and the hub. Shaft with Two Keyways Torque Applied Deformation and Stress Equations and Calculator. 2-1/8 in. system are its superior holding power in both lateral and tor- sional directions, its ease of assembly and disassembly and its self. designations† aj ak ba. Inventory # 8335. Specify the final dimensions for each point on the shaft. com Web site: Keyseat Dimensions A Keyseat is an axially located rectangular groove in a shaft,hub or bushing. It is also possible to make a calculation. Woodruff Key Dimensions Woodruff Keyseat Cutter 3 4 X 125 Thick 406 Maritool Standard Woodruff Keys Metal Fasteners Ansi Dimensions Ansi Standard Woodruff Keys B17 2 1967 R1998 Ers Edge Keyseat Dimensions For Woodruff Keys Per Ansi B17 2 Ering Reference And Tools H S Woodruff Keyseat Cutter 3 4 X 1875 Thick 606 Maritool Shape: Several. American Metric ® Corporation Ametric ® 672 GROUP: 064 1 1. Where bores do not permit standard depth keyseats, a flat key of the proper dimension is furnished with the bushing. The key shapes are most commonly rectangular and tapered and are typically made from. 30 1/2 1-11/16 1-15/16 2 1. In these cases, a rectangular key is furnished. Simple Internet search for. To form a key seat, as by cutting. . 2388 State Route 726 Eaton, Ohio 45320 (937) 456-2232 Fax (937) 456-2282 webmaster@kramerusa. The Metric system does not refer to keyseat or keyway dimensions as does the English system. 2180 Corporate Lane, Suite 104 ~ Naperville, IL 60563 USA Phone (630) 596-9000 Fax (630) 596-9002 E-mail: info@pfeiferindustries. OK, I guess the straight key is the way to go, then. Also, T 1 and T 2 are not necessarily equal. 69 2. Note that metric keys are. Nominal Key Size W x D Min. . 5 2012 10028 248 7 28075 712214 11228 248 7 31580 762214 13238 3310 8 35585 762214 16042 37 128 *Contact your local Baldor office for “L” Dimensions. 0005” including 2” +. Our massive line of Miniature Keyseat Cutters is unmatched in the industry, featuring hundreds of specialty sizes and styles. 1Contact. . D im en s o- N , OP A Ba dX rp cf t l . . . Shaft keyseat dimensions and tolerances were given in ISO R773:1969. of the experiments, keyseat dimensions were measured with CMM device. 5 20 12 100 28 24 8 7 280 75 71 22 14 112 28 24 8 7 315 80 76 22 14 132 38 33 10 8 355 85 76 22 14 160 42 37 12 8Woodruff Keyseat Cutter Sets View Products. 1 shows a keyseat for a shaft diameter D, key width W, key height H, and fillet radius r. 5 14 9 71 14 11 55200 55 49 16 10 80 19 15. Metric woodruff keys are supplied to din 6888 / iso 3912 in c45k keyKeyway hallite Keyway chartShaft keys. The flanges and bores involved are as follows: Size Bore Range KS Key Furnished 6C 1-11/16 to 1-7/8 1/2 x 1/16 1/2 x 5/16 x 1-15/16 8C 2-5/16 to 2-3/8 5/8 x 1/16 5/8 x 3/8 x 2-1/2*Dimensions are for reference only. *Contact your local Baldor office for “C” Dimensions. Document History. IEC Shaft Extension, Key and Keyseat Dimensions–Continuous Duty AC Motors (mm) NEMA Shaft Extension and Keyseat Dimensions–Foot-Mounted DC Machines (mm) NEMA Frame Dimensions–Foot-Mounted DC Machines (mm) MOTOR CONTROLS Power Factor Improvement of Induction Motor LoadsQuestion 5: You have been tasked with designing a rectangular keyseat in a power transmission shaft. AA dimensions shown in chart are legacy Baldor-Reliance typical values meeting or exceeding NEMA. (Dimensions comply with DIN 6885/1) † Requires use of chamfered keys. Surface Finish — Sides and bottom of keyways shall not exceed 250 micro inches. (b) Determine the minimum diameter of shaft a for a safety factor of 2 based on static yield analysis. . B +0. ANSI B17. B14 Face P = Open Drip Proof AC or DC Motors. In addition, the effects of 3D surface and SEM images and processing parameters on the accuracy of the measurement were analyzed. 2-1967 (R1998) - Engineers Edge. 6250 2 1/2 1 7/8 1 1/4 2 2 - 1/4 x 1 0. 4235 : PART 1 : 1972 Differences Between Keyseat and Keyway. Select what material the tool is made from, either HSS or Solid Carbide, and what coating it has (if any). ANSI_B17_1-Keyway_Dimensions. Transcribed image text: and make a two-view working drawing of the part show- ing the side view in half-section. This specification includes index tolerances for multiple keyways. Keyseat Cutter Considerations: • Select a tool with the shortest allowable overall length to ensure the strongest tool setup possible. keyseat dimensions chart with U = 2. 3 Protection against falling water up to. Some machining operations are not only impractical but also impossible without woodruff keyseat cutters. Belts And Sheaves Pulley Formulas For Calculating Diameters and Speeds Belt Installation Belt Tensioning Belt Deflection Force And Elongation RatioA keyseat cutter’s neck diameter greatly affects its performance. Page 7/11Ansi B17 1 Standard Keyway Dimensions LowellcorpAs this ansi b17 1 standard keyway dimensions lowellcorp, it ends up living thing one of the favored ebook ansi b17 1 standard keyway dimensions lowellcorp collections that we have. Minimum keyseat width is that figure permitting the largest shaft distortion. x 1/4 in. Measure the width that you need the keyseat to be across the face of the part. Standard Key Stock Assortments. The more important shaft dimensions are the diameters of all the other mating components. kEySEAT R ES MIN S 42 2. Frac. 19-1997 American National Standard Keys and Keyways. Woodruff keyseat cutters — Dimensions 1 Scope This International Standard specifies the dimensions of milling cutters intended for manufacturing woodruff keyseats in accordance with ISO 3912. 3. * contact your local baldor nema -quick reference chart office for "c" dimensions dimensions - n, o, p, ab and xo are specific to baldor baldor electric company p. Keyseat 180° from split. 0015” Over 2” +. The keyway is the actual slot or groove that is machined into the shaft or hub, while the keyseat refers to the area on the mating part that the key fits into. 2143". Model: 1 1/4″ Keyseater. For example, an ANSI 202 measures 1/16 x 1/4, while ANSI 1012 measures 5/16 x 1 1/2. But ensure the weakened shaft can support the load. Many keyways are milled directly into a shaft or broached into the corresponding bored holes. NEMA C-Face BA Dimensions. We can provide keyed shafts in any length up to 20 foot. *Contact. 0020” Standard Keyseat Dimensions Shaft Diameter Width. Finished Striaght bores for standard AGMA Class 1 Clearance fit. Table 11 on page 955 (18th edition) titled "USA Standard Keyseat Dimensions for Woodruff Keys (USAS B17. 20: Shipping: In Stock - Ships Same Day * Quantity: Add to Cart * Same Day Shipping is only available on orders placed Monday - Friday before 4 P. ) DIMENSIONS IN INCHES Bolt Circle Cap Screws Required Weight Typical Material Steel Cast Iron Ductile A B D E F L Iron QT 1,750 1/4 1. Dimension. a. Description: The Morrison Keyseater is built to ensure an accurate keyseat. . 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. These milling cutters are each sized to create keyseats for a specific size of key. 1051 Aviation Blvd. Woodruff Keyseat Cutter: 1. Straight teeth provide better surface finish. KeyWay. 62 1. minimum value for AA dimension. 007 0. . Write the first review. 12 — 0. Corner Radius Harvey Tool's selection of fully stocked, corner radius Keyseat Cutters includes standard, reduced shank, and staggered tooth designs. Design of Square Key and Keyway (Wood Ruff) Stress, Shear and Torque. 4 . 1 ; Shaft Arbor and Keyseat Dimensional Data ANSI B94. All dimensions given in inches. Bore & Keyseat Dimensions All measurements in inches. or material and filtering by the precise dimensions Catalog; About Us. M. Mill Woodruff Keyseat on Clausing Mill TIPS 506 tubalcain pt 3 Design Walkthrough - Drafting MACHINE SHOP TIPS #151 Cutting aMetric key keyway dimensions per iso/r773. Woodruff Key Slot Dimensions; Woodruff Keyseat Dimensions;Metric (MM) Dimensions in Black Inch Dimensions in Red d = DC Motors 1 mm = . 004 0. Unless otherwise specified, the shaft keyway is assumed to be standard. 328 Flat. In order to lock a hub or bushing and shaft together, and prevent the shaft from rotating in the bore, a key is commonly inserted into the keyseat that is machined in both the bore and shaft. 04. The thickness of cutters available are basically . Yes, the "key" is an important element for the successful transmission of torque. 0005” including 2” +. The depth of the keyseat should be specified as the dimension from the bottom of the keyseat to the opposite side of the shaft, which can be accurately measured. 8 Protection against submersion. NOMINAL SHAFT DIAMETER. Which scale was used on this part?21. 75 2. Inch keys conform to ANSI B17. 453 Flat. AlTiN coating option for added lubricity and increased wear resistance in difficult-to-machine materials. In order to have the shaft key function correctly, both the shaft and rotating elements ( pulley, coupling and gear) have to have a keyway and keyseat. ANSI B17. TB Woods 888-829-6637F3-1 L-Jaw Elastomeric Couplings F3 • 100% interchangeable with industry standard • 3 Insert materials availableP-1686-TBW 4/16. TB Woods 888-829-6637F3-1 L-Jaw Elastomeric Couplings F3 • 100% interchangeable with industry standard • 3 Insert materials availableFor Standard keyseat dimensions, see chart page F113. Give the machinist the largest tolerances possible. Remember, the keyway dimensions should be precise and adhere to the design.