Also adequately gibbed to compensate. During installation, woodruff keys will sometimes slip out of their groove as the. BALDOR ELECTRIC. 1American Pulley stocks X-Style bushings in the following bore and keyseat sizes. The following tolerances for maximum lead (due to angular displacement of keyseat centerline from. keyseat: [transitive verb] to supply (as a mechanical part) with a key seat. 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. 75 Desired Slot Size. Another name for a Keyway is a Keyseat, since the. Designed for cutting keyways and keyseats, these woodruff-style cutters are designed with dished sides for clearance and are stocked in a multitude of. I cut hundreds of them. This is done with multiple operations so that, for example, a keyseat cutter with a 1/4" cutter width can create a slot that is 3/8" wide. 5 11 15. 30 102 PT 2 COLUMN BRACKET. 0Table 3: Example of IEC shaft dimensions. material, usually AISI 1020 CD zDetermine yield strength of key, shaft and hub. Dimensions Keyseat Dimensions Fig. 240 0. Frame L449T is not included in this chart. Hardware ANSI Menu All dimensions are given in inches. 1051 Aviation Blvd. D im en s o- N , OP A Ba dX rp cf t l . 50 — 0. Desired Slot Size. 1890 0. , 17 # of Teeth, 40BS17H X 5/8 at Zoro. Woodruff keys work well near shaft shoulders and on tapered shafts. Without any physical obstructions surrounding the motor, two 324T motors will mount onto the foundation and couple up the same. , 22 # of Teeth 40BS22H X 3/4 TRITAN BushedRlrChnSprkt, SplitTaper, 2012, 3/4in 60BTL35 TRITAN Sprocket, 1/2-in. If limit dimensions (refer to Tablas 13 M and W of the Appendix) were to replace the keyseat dimensions shown, what would they be? 23. The Woodruff Key numbers indicate normal key dimensions. WIDTH. 1 ; Shaft Arbor and Keyseat Dimensional Data ANSI B94. All dimensions given in inches. 3/4" taper per. 0020” Standard Keyseat Dimensions Shaft Diameter Width. The groove in the drive shaft is called a keyseat. 875. application. ) 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. 51144 1804842. Specifications Met: Pkg. Next, align the top, flat portion of the woodruff key so that it is parallel with the host shaft. 5 71M 14 14 30 5 5 5 3 16 80M 19 19 40 6 6 6 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. Select delivery location. Key and Keyseat Dimensions FrameD G F GD Frame D G F GD 63 8. ANSI B17. The desired fit is a tight fit of the key in the keyseat of the shaft and in the keyway of the bore hole. , 20 # of Teeth, 40BS20H X 1 1/8 at Zoro. web woodruff keyseats key seat shaft key above shaft keyseat hue number 202 5 302 5 505 120b n size key 1 16 x 1 16 x 5 16 3 32 5 16 38S x 3/4 in. Bore & Keyseat Dimensions All measurements in inches. 328 — flat — 48 — 3. NEMA Keyseat Dimensions–Foot-Mounted AC & DC Machines IEC Shaft Extension, Key And Keyseat (Keyway) Dimensions Square And Flat Stock Keys Standard Keyseat Sizes Metric Keys–Standard Sizes. 5 14 9 71 14 11 5 5 200 55 49 16 10 80 19 15. Qty. NOMINAL SHAFT DIAMETER. JAM to FM inclusive w/ Setscrew. 25 - M 1. ANSI B18. Bore (mm) Key Wt. 1: all rough dimensions may vary by . The keys and keyways followed the recommendations of ISO R773:1969 and shaft tolerances followed ISO R775:1969. Our massive line of Miniature Keyseat Cutters is unmatched in the industry, featuring hundreds of specialty sizes and styles. Square key. 1 ; Shaft Arbor and Keyseat Dimensional Data ANSI B94. This is done with multiple operations so that, for example, a keyseat cutter with a 1/4” cutter width can create a slot that is 3/8” wide. 50 670 668 J101. 00 x 2. 1-1967 (R1998)Shaft Key Seat Depth Control Values S and T for Shaft and Hub ANSI B17. Class 1 - A relatively free fit applies only to parallel keys. Thanks in advance. XTB15. 2; Thread Shear Area for External and Internal Formulas and Calculator per. Frame D G F GD Frame D G F GD 63 11 8. In the figure below,. Provides strong connection can be either parallel. 5 11 15. Sleeve Coupling Flange, Coupling Size 7, Maximum Speed 5,250 RPM, Maximum Torque 940 in-lb, Outside Diameter 4 5/8 in, Bore Type Round Keyed, Hub Diameter 2 13/16 in, Hub Material Cast Iron, For Bushing Size Not Applicable, Bore Diameter 1 1/4 in, Length through Bore 1 27/32 in, System of Measurement Inch, Hub. 2388 State Route 726 Eaton, Ohio 45320 (937) 456-2232 Fax (937) 456-2282 webmaster@kramerusa. Keyseat Cutters. 312 / 2. 300. Dimensions Keyseat Dimensions Fig. A square key is used if the deeper key depth is required to transmit torque. This may also be written as shaft keyseat or hub keyseat when describing the exact 1/2 3/4. 000;-. The key and key seat cross section are ISO standardized. Non standard bores and over the keyways. American Pulley • Phone: 205-663-3002 • Fax: 205-664-3351 •. 01mm on each side and the hole was Ø25mm. 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. 1-1967 (R1998) Standard Bore and Keyway Tolerances (Inch and mm) Keyseat Dimensions for Woodruff Keys per. Key should be a tap fit in the keyseat and stay there. 587. Inspection methods for straight and tapered bores and keyways are included in the annexes. 53mm (0. In a bushing or hub it is sometimes called keyway. † For 4JSC the hub is an integral part of the flange. Many tools are available with additional coatings. 248 0. having an intended meaning altered or misrepresented; "many of the facts seemed twisted out any semblance to reality"; "a perverted translation poem". js9 width. Experimental. When keyway and setscrew sizes are not specified, they are supplied in accordance with the table of dimensions headed “STANDARD KEYWAYS AND SET-SCREWS. BOTTOM OF SHAFT TO BOTTOM OF KEYWAY. Carbide Tipped Keyseat Cutters come in standard length and extra-long and in both. Keyseat Size: No KS, Suitable for reboring . scope: 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. BALDOR ELECTRIC COMPANYDimensions for C-Face Brake Motor Systems Brakes Externally Wired to Motor C-face motor with double shaft extension. Min. For example, an ANSI 202 measures 1/16 x 1/4, while ANSI 1012 measures 5/16 x 1 1/2. 7x10 3x3. ANSI-B17. Size Dimensions (mm) Wt. In contrast, the keyway is the slot cut into the mating part to accommodate the. Dimensions should specify only the size of a feature. 4 - HOLES E D 2F BA V R ES N-W U S KEYSEAT R ES U S KEYSEAT V. BUSHING AND KEYSEAT DIMENSIONS. 5 4 4 180 48 42. These milling cutters are each sized to create keyseats for a specific size of key. IEC Shaft Extension, Key and Keyseat Dimensions–Continuous Mandatory AC Motors (mm) NEMA Shaft Extension and Keyseat Dimensions–Foot-Mounted AC Machines (mm) NEMA Frames Dimensions–Foot-Mounted DC Machines (mm) POWER CONTROLS Power Factor Improvement out Ingress Motor ChargesTruKey® Shafting from Keystone is designed to provide the straightest, most accurate keyed shafting, in the industry. $6110. 81 + 689 + - 1. High Speed Steel TMX Straight Tooth Woodruff Keyseat Shank Cutter. The width tolerance controls the size and form of the keyway, and the position tolerance controls the location and orientation of the centerplane (usually with the axis of the shaft OD as the datum feature). Keyway sizeDimensions standard keyseat keyway shaft shafts diameter nominal Metric key keyway dimensions per iso/r773. G&G Manufacturing Company 4432 McKinley Street P. stock image. 12 0. water from all directions, limited ingress. 8 products. Refer to page 3 to order the required coupling. kEySEAT R ES MIN S 42 2. Title: Tables. Use the 2. Bore Diameter Size Bore Reference -0. What was the overall height of the casting before finishing? NOTE: ALL FILLETS R. 2. Bore And Keyseat Dimensions: Product No. 4JSC x 1-1/8 has 1/4 x 1/16 shallow keyseat. Instead, key dimensions are specified. 0 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 +. Max. Please call for quote. key stock that has a _____ tolerance will need to be fitted by filing etc. 4: tap size and bolt penetration allowance. For example, Gear drives, Pulleys or Sprockets are connected securely using keys to the power transmitting shaft. 19 ; Shaft Arbor Keyway. The 1/4 shaft diameter spec conforms to the 1/8" keyways in the 1/2" sprocket hubs. Dimensional data for 444T through 449TS frame sizes refl ect the use of a top mounted conduit box with a cantilevered mounting arm. Two types of woodruff keyseat cutters with cylindrical shank are specified: — woodruff keyseat cutters with cylindrical shank, in accordance with ISO. The manufacturing method should only be specified if it is a mandatory design requirement. 875 0. 19 ; Keyseat Design Tolerances for Electric Motors and Generators; Arbor Keyway Cutter Hole Keyway Dimensional Data per ANSI/ASME. The rectangular key, also known as a flat key, fits into the standard keyway in the shaft. The keys and keyways followed the recommendations of ISO R773:1969 and shaft tolerances followed ISO R775:1969. Ansi B17 1 Standard Keyway Dimensions Lowellcorp Keys and Keyseats - ASME Shaft Key Seat Depth Control Values S and T for Shaft and. 4 Altered bores available only up to this diameter. * Speeds & feeds are starting recommendations only. Study with Quizlet and memorize flashcards containing terms like HP conversion, The best instrument to use when measuring the inside width of a keyseat or the depth of the keyseat is a, The most often used fastener used to attach a motor to. 005 Min Diameter F. Zoro #: . 1-1967 (R1998)Shaft Key Seat Depth Control Values S and T for Shaft and Hub ANSI B17. 002 Depth E t0. Design of Square Key and Keyway (Wood Ruff) Stress, Shear and Torque. For Keyway Dia. This is done with multiple operations so that, for example, a keyseat cutter with a 1/4” cutter width can create a slot that is 3/8” wide. A #406 key is 1/8" thick by 3/4" diameter nominal. Specification for metric keys and keyways – Parallel and taper keys BS 4235-1:1972;Key stocks sizes various. Woodruff key slot dimensions 9 fasteners keys. system are its superior holding power in both lateral and tor- sional directions, its ease of assembly and disassembly and its self. 00 long: Width: . WOODRUFF KEYS. FREE delivery November 22 - 24. Stock Bores (mm) Shallow Keyseat Dimensions 2 (in. Hubs must be mounted with 100% keyseat and shaft engagement, as seen in A or B of Figure 1. In some cases, as the bore increases in diameter, a shallow keyseat is provided—due to insufficient metal thickness. 1-1967 (R1998)TSUBAKI Single Strand Sprocket, 60 Chain Size, 1-1/8 Bore Dia. 006" # Tolerance each on T1 and T2 (16"-20") is-. Min. 0 186 19. 06 0. S. 12 2. com. 004 0. Nominal Dia. Undersized Machine Key Assortments. 0015” Over 2” +. 453 — flat —. Description. They have an alternating right- and left-hand tooth style for removing more material at high speeds than straight-tooth keyseat cutters. 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 8Keyseat: An axially located rectangular groove in a shaft or hub. C +0. 5000. Due to the curvature of the shaft, the depth of cut is greater than H=2, by a chordal height Y = 1 2. 5" (63mm) wide in an almost infinite range of widths and bore sizes in long length through bores. 512 132 265 230 300 130 243 187 256 190 5. Recommended ANSI Standard Keys and Keyseats Design per. 000. 24-1/2. B +0. Number of pages: 118. Weights are approximate in pounds. Set screws are used as semi-permanent fasteners to hold a collar, sheave, or gear on a shaft against rotational or translational forces ;Dimension. C +0. 03-01-2022, 09:47 PM #4. 5 4 4 180 48 42. s. ,-The 3/4" per foot taper of the 0. ”- Series F couplings supplied with 4) All dimensions per AGMA 9002-A86 interference fit bores without set screws commercial standards. Ansi B17 1 Standard Keyway Dimensions Lowellcorp KEYS AND KEYWAYS - Union College Ansi B17 1 Standard Keyway Dimensions Lowellcorp Keyways 101 - How to use and make keyways Problem on Design of Key - Design of Machine Broaching - Cutting a Keyway Introduction to. When SH 1/2 1-3/8 1-5/8 1-11/16 1. , 21 # of Teeth 40B21F-3/4Using a keyseat dimensions chart with U = 2. 488 300 250 350 395 333 372 160 254 8,268 108 160 110 250 350 215 180 250 M12 329 329 132 5. 7x10 3x5x13 3x6. 1 Size Table. 0020” Standard Keyseat Dimensions Shaft Diameter Width. For technical drawings and 3-D models, click on a part number. The following sections describe key and keyseat dimensions, keyseat failure, and key failure. 010 inch, max is provided for offset (due to parallel displacement of keyseat centerline. 625 inch (outside diameter) of the workpiece shown in. Some machinists use keyseat cutters to machine slots greater than their cutter width. TRITAN Sprocket , 100 Chain Size, 21 # of Teeth 100E21H TRITAN Sprocket , 80 Chain Size, 28 # of Teeth 80SF28H TRITAN Sprocket, 3/8-in. 500 1. 0005” including 2” +. Figure 2 where A is the dimensions between hub faces. These milling cutters are each sized to create keyseats for a specific size of key. 4 5 6 8 8 8 10 12. Keyways Index. directions, limited ingress. Woodruff Keyseat Cutters. Install bushings in hubs per bushing instructions: a. This specification includes index tolerances for multiple keyways. 77 . 1 shows a keyseat for a shaft diameter D, key width W, key height H, and fillet radius r. Except JAM D. That's how I found this page. 2-1967 (R1998) - Engineers Edge. 19-1997; Design of Square Key and Keyway (Wood Ruff) Stress, Shear. Other data in this standard are given in Tables 2 and 3 through 7. 0 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 +. For a square key, H= W. H H L C TE Tables on pages 13-14 provide dimensional information for flanges and hubs used for Spacer Coupings. Table 11 on page 955 (18th edition) titled "USA Standard Keyseat Dimensions for Woodruff Keys (USAS B17. Note: When ordering, add the X-Style Bushing prefix to the indicated part number. 480 100. 3750 7/16 . 0 143JP and 145JP 29. 424 Minimum 2. A rounded bottom allows these keys to rock in their seat to relieve stress on the shaft caused by vibration or misalignment. Some machining operations are not only impractical but also impossible without woodruff keyseat cutters. 5 4 4 180 48 42. 5 times the shaft diameter to ensure a good. Related Resources: gears Shaft Diameter vs Key Sizes Design Recommendations. Recommendations for key size, length and keyway depth as a function of shaft diameter are provided in ASME Standards B17. 093 / . ) 2 in; See all product information Get 10% off your order U. 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. 0 a shallow keyseat is required, SDS 1/2 1-11/16 1-15/16 2 1. 1: 1/16 " 1/2 " 0. 5 2. Parallel Metric Keys and Keyway Dimensions - Roy Mech. The keys and keyways followed the recommendations of ISO R773:1969 and shaft tolerances followed ISO R775:1969. We stock pre keyed shafting in many diameters, including metric diameters, with standard keyways. Nominal Key Size W x D Min. Unless otherwise specified, the shaft keyway is assumed to be standard. , 35 # of Teeth 35B35 TSUBAKI Sprocket Chain Rlr P Sgl 1. *Dimensions are for REFERENCE in Energy EfficientIndustrial Electric Motors and DrivesLeader in Energy EfficientIndustrial Electric Motors and DrivesKey and Keyseat Dimensions Frame D G F. ASME B1. CollegeANSI Shaft and Hub Keyseat Dimensions for Woodruff Keys per. 75 1. Also known as half moon keys. Never used commercially available keystock, it's intended to be filed to fit in the field. The manufacturing method should only be specified if it is a mandatory design requirement. The Woodruff Key numbers indicate normal key dimensions. 0635 0. 002 -0. Its available in a wide selection of standard sizes and special face widths are also available with our 24-hour just-in-time service. 1875″ Cut Width, 1/2″ Shank Dia, Straight Tooth 2-3/16″ OAL, 8 Teeth, Carbide Tipped, ANSI 609, Old Standard 16 List PriceNote 1: Maximum bore with keyseat. 2500 0. Designed for cutting keyways and keyseats, these woodruff-style cutters. 8 10. SIZE RANGE – WOODRUFF KEYS Woodruff Keys, DIN 6888 (Metric) Width ‘W’ Height ‘H’ Length ‘L’ Diameter Key No (d2 x 2) 1. Created Date: 2/7/2017 11:29:07 AM. Recommended ANSI Standard Keys and Keyseats Design per. Parts are dimensioned based on two criteria: Basic size and locations of the features. Carbide Staggered-Tooth Keyseat End Mills. The lack of a Z or Y suffix indicates that the shaft and mounting hole dimensions are the same for all motors with the same frame size. 2. 80. 125 Thick # 406 product page with images and specifications High Quality PRECISION Tool Holders, Collets and Machine Accessories. 5 149 71 14 115 5 20055 491610 80 15. water from all directions, limited ingress. As a general rule, the key is a tighter fit to the shaft so that the key remains on the shaft during assembly and removal. thru 3/4 in. When indicating a keyway or keyseat on a drawing, the depth, width, and location should be specified to give the full size and location of where the cut is to be made on the part. This standard presents metric dimensions, tolerances, sizes and fits for straight bores, tapered bores, keys and keyways for unmounted industrial flexible couplings. This does not include the little hump of the shaft that gets removed. 25-0. Shaft keysShaft standard key sizes table non bushing bore keys qd shallow range gates includes specific each also Gates belts, hoses, and applications: standard & non-standard shaft key. Pkg. 8 cannot be furnished. NEMA C-Face BA Dimensions 143-5TC 2-3/4 182-4TC 3-1/2 213. Recommended ANSI Standard Keys. Located in Warren, Michigan, KEO has been producing the best in performance cutting tools since 1941. Finished Bore with Keyway & Set Screws D40BS17H X 1 TSUBAKI Single Strand Sprocket, 40 Chain Size, 3/4 Bore Dia. 000 +0. Finished Striaght bores for standard AGMA Class 1 Clearance fit. Detailed width tolerance. Key stock and standard keyseat tolerances produce this fit. When placing an order always use the part number in addition to the model number if available . ANSI woodruff size charts express measurements in inches and nominal key sizes with higher numbers corresponding to bigger keys. 5 14 9 71 14 11 5 5 200 55 49 16 10 Leader in Energy Efficient 80 19 15. 247 in, Bore Type Fixed, Chain Number 41, Finish Black Oxide, For Pitch Type Single Pitch, Hub Diameter 1 3/4 in, Hub. Taper-Lock Bushing Keyseat Dimensions Bushing Bores (in) Keyseat 1008 0. 000 -0. Max. Minimum keyseat width is that figure permitting the largest shaft distortion. TRITAN Finished Bore with Keyway & SS Bore Sprocket, 40 Chain Size, 3/4 Bore Dia. , 13 # of Teeth 60BS13H X 1 7/16. bushings are of such a size Keyseat Keyseat Keyseat Keyseat that standard depth keyseats JA 1/2 1 1-3/16 1-1/4 . Shallow Keyseat Dimensions Some large bore Type C flanges are supplied with shallow keyseats. , 18 # of Teeth 40B18F-5/8 TSUBAKI Single Pitch Roller Chain Sprockets, 16B20 16B20Key and Keyseat Dimensions FrameD G F GD Frame D G F GD 63 8. -0. Tapered Shaft End and Mating Hole with Slotted Nuts Design Data Dimensions Per. The keyway is machined by partial drilling on the shaft. vc electric motor information. SAE Standard. Saw cut through flange and taper (and sometimes cut down into keyway also) to provide a true clamp fit. t. 00 2. 000 Less than 12 12 and Larger Maximum Permissible Eccentricity1 Scope. 406 1. If limit dimensions (refer to Tablas 13 M and W of the Appendix) were to replace the keyseat dimensions shown, what would they be? 23. 015/-0. Order Tritan Finished Bore with Keyway & SS Bore Sprocket, 40 Chain Size, 5/8 Bore Dia. 1 shows a keyseat for a shaft diameter D, key width W, key height H, and fillet radius r. This does not include the little hump of the shaft that gets removed. Install Hubs Set Spacing Install Element. Assume there is an end-mill keyseat on the shaft a to assemble the gear. maintain the bushing’s position on the shaft until the cap. Key and keyway dimensions (control in motion) Keyway shaft coupling hole service couplings modification additional motion control tapered parallel Keyway chart Standard shaft sizes. 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. Design details such as tolerances, fillet radii, shoulder heights, and keyseat dimensions must also be specified. Our 4375 Keyseat Cutter is stocked with ½” diameter steel. 248 0. 5. Placed directly on a feature to identify a specific size or they may be connected to a feature in the form of a note. Shaft diameter is 3/4". But thanks anyway. Continental welded steel conveyor pulleys with a. I will be attaching two sprockets to each shaft in the center. ) TENSILE: 910 kilos (2000 lbs. In the figure below, notice that the depth of the keyway is indicated from the opposite side of the bore, and the depth of the keyseat is indicated from the opposite. Metric Key Keyway Dimensions; Parallel Key and Taper Keys Dimensions; Shaft Keyway Shear and. 5 14 9 71 14 11 5 5 200 55 49 16 10 80 19 15. For technical drawings and 3-D models, click on a part number. 75 7 2 2. Minimum keyseat width is that figure permitting the largest shaft distortion acceptable when. 42 — 2. (a) Find the torque T 2 transmits through shaft a and the torque and speed of the output shaft c. 2062TRITAN Stock Plain Bore Bore Roller Chain Sprocket, 100 Chain Size, 15 # of Teeth 100B15H X 1 1/4 MPB TSUBAKI Sprocket Chain Rlr 16Mm 94. 5x3. Forces Exerted on Shafts • Gears, belt sheaves, chain British ISO Metric Screw Threads Designations. The standard key size for a straight key in a shaft is one quarter the shaft diameter. Measure the width that you need the keyseat to be across the face of the part. 5 66225 60 53 18 11 90 24 20 87250 70 67. The "key size vs shaft diameter" table in Machinery's Handbook shows for shafts 7/16"-9/16", use a key of 1/8" width (for a square or rectangular key, not a woodruff), and that. 2. Also the dimensions are unilateral: for the keyseat, the dimension is a minimum; for the keyway, the dimension is a maximum. keyseat dimensions chart with U = 2. 093" diameter. Nominal Dia. Max. ForFractional inch dimensions (Fig. 010 inch, max is provided for offset (due to parallel displacement of keyseat centerline. 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 CHARTShaft keyseat dimensions and tolerances were given in ISO R773:1969. They are useful for shaft end. 3125 2. Shank Diameter. Shaft with Four Keyways Torque Applied Deformation and. Class 3 is an interference fit: for permanent assemblies. 000. It represents manufacturing practices for sizes and types from 1/16 in. zSelect key size, using W=H if shaft size < 6. 1 Keyway Dimensions - Lowell Corporation KEYS AND KEYWAYS - Union College Ansi B17 1 Standard Keyway. S. 328 — flat — 48 — 3. These milling cutters are each sized to create keyseats for a specific size of key. 500 X 2. 6-hole drilling (most sizes) makes installation and removal quick and easy.