This is a vital metric for analysis and protection. 386 0. 7 to 36mm sizes. Also known as E-Style and C-style rings, slide these into the groove from the side of the shaft. Use individual keyway broaches in a variety of arbor hole sizes. Key Calculation. When overloaded, these limiters cause your sprocket or pulley to slip. Use them to connect gears and other components with tapered keyways to shafts. Parallel keysKeyway shaft roymech tolerance Shaft standard key sizes rectangular gates keys diameters most non std readily availableParallel metric keys and keyway dimensions. Choose from our selection of motor adapters, including hydraulic pump-to-motor mounts, set screw flexible shaft couplings, and more. Shaft Diameter. SAE and Metric Hex Key Set, 25 Piece $ 4 99. It may be mildly magnetic. Amazon. A key cutter, also known as a keyseat cutter, keyway cutter, or woodruff cutter, is a versatile tool that can be used to cut several different types of keyways. Install these keys in a drilled and reamed hole to locate fixtures and vises on your machine table. failure mechanisms as keys: 1) shear or 2) bearing. ) Choose from our selection of rectangle keys, including over 950 products in a wide range of styles and sizes. These ball joint linkages are made of steel. Oval — Use in U-shaped and V-shaped grooves and on other sloped or angled surfaces. 000 +. Rotary Shafts - Straight with Keyway Grooves. 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”. Application parameters . Configure Now. Figure 2 Keyway Sizes. The tolerance zone for shaft keyway width b with normal fit is ISO N9 and with close fit ISO P9. bearing pressure p = F s / (h/2 微) MPa. 6 mm. Also calculated are the overall measurements for shaft and bore, as well as the chord height. Choose from our selection of shaft keys, including rounded machine keys, machine keys, and more. Or fastest delivery Tue, Oct 31 . 0, 2. Re-design the shaft shown below to be a uniform,Metric woodruff keys are supplied to din 6888 / iso 3912 in c45k key All torque transmissions resourcesKeyway chart bore resources torque alltorquetransmissions. 8 14 9 51 58 16 4. Metric keyways are dimensioned by width and depth as measured from the radius of the shaft to the center of the keyway. 3D Printing & CAD. Available in 3 metre (Metric) 10 foot (Imperial) random lengths, with our in-house machining capacity stocked sizes of Keysteel can be cut to length or purchased from our. Keys available with Square and/or Radius ends. 2-1967. Doing so may result in sprocket/sheave hub fracture. 14 mm. Steel C45 (EN8) Special sizes of Keysteel and Parallel Keys can be supplied. All TruKey. Tapered keys are machined with a taper along the length of the key. system. Special sizes and materials suh as alloy steel (A-3630) are available on special order from the factory. S s = Yield Stress of Key T = Torque F = Force D = Shaft Diameter W = Width L = Length K s = Service Factor K a = Application Factor K d = Keyway application Factor K f = Fatigue Life FactorFind the depths to cut in keyway and keyseat. Choose from our selection of V-belt sheaves in a wide range of styles and sizes. 1 -1967 (2004) standards for metric and inch unit systems. Keys are tapered along their length. Tapered keys are available with a square end or a. Keyway shaftKeyway and key size dimensions Mechanics. com: 1/4 key stock. 201 202 1/16 x 1/4 0. 00 (1) 3. Keyway (Hub) Radius r. Standard Metric Keys and Keyway Bores. When measuring and ordering full-radius woodruff keys, you'll only need to take into account the width of the key and its height. They have a long shaft that reaches into tight spots to turn fasteners. - The maximum tolerance describes the. This key stock is stepped to match repaired keyways in shafts or gears. Axle Seals. 03937" 1" = 25. PITTSBURGH. Also known as C-style and crescent rings, these rings have a small shoulder to fit in tight spaces. H9/e9,H8/e8, H7/e7,E9/h9, E8/h8, E8/h7 Running fits with greater clearances without any special requirements for fit accuracy Main fits of machine tools. JM Clipper seal sizes ranging from below one inch to well over 40 inches OD. Find Key Stock at MSC Industrial Supply, serving the metalworking, safety, and MRO industries for over 75 years. 3 mm. 25 - M 1. Cut these rollers to the width you need using a band saw. Key Stock is most often used to make machinery keys that are used to locate components onto a round shaft. DIN-6888. 18-8 stainless steel key stock offers a balance of strength and corrosion resistance. shaft. Specifications Met. . 6 mm. Flexible Shaft Coupling - Oldham, Selectable Mounting Type, MOM Series. 053 0. Solid Rigid Shaft to Shaft Couplings Design Equations and Calculator. The torque capacity per unit length of an SAE spline is based on a 1,000 psi bearing stress on the sides. 8 mm. Default metric fastener thread pitch. 240 0. 05″ and the precision metric sizes are 0. They mill precise notches in rotary shafts to fit machine keys and can also be used for slot milling. This technique is used for parts like a gear, hub or pulley. These splines are known as straight splines. These tools are tested to 1, 000 volts to meet IEC 60900 standards. Key (engineering) In mechanical engineering, a key is a machine element used to connect a rotating machine element to a shaft. 094 0. There are different types of machine keys. Install these keys in a drilled and reamed hole to locate fixtures and vises on your machine table. Style D blades are sturdier than. Filter By. Socket. 10 products. 37. 154 Key Size Versus Shaft Diameter 155 Keys and Keyways for Milling Cutters 156 Woodruff Keyseat Cutters KEYS AND KEYSEATS 157 Depth Control Values for ShaftV-Belt and Pulley Trade Size Identifiers. Fully keyed shafts provide a good fit between the key and the keyway. These tools are tested to 1, 000 volts to meet IEC 60900 and ASTM F1505-01. 75mm = 000 Key. Join Prime to buy this item at $11. Min. Use individual keyway broaches in a variety of arbor hole sizes. The assorted keys in these sets have an insulated handle and shaft that protect against shock from accidental contact with live electrical circuits. For technical drawings and 3-D models, click on a part number. A rounded bottom allows these keys to rock in their seat to relieve stress on the shaft caused by vibration or misalignment. PFEIFER INDUSTRIES, LLC. All dimensions are given in inches. Metric Shaft Keys DIN 6885 A 2x2x6 3x3x6 4x4x6 2x2x8 3x3x8 4x4x8 2x2x10 3x3x10 4x4x10 5x3x10 5x5x10 6x4x10 6x6x10 8x5x10 8x7x10 2x2x12 3x3x12 4x4x12 5x3x12 5x5x12 6x4x12 6x6x12 8x5x12 8x7x12 2x2x14. Socket Set Screws Mechanical Properties ASME B18. American Metric ® Corporation Ametric ® 622 GROUP: 064 Metric Shaft Keys DIN 6885 A 2x2x6 3x3x6 4x4x6 2x2x8 3x3x8 4x4x8 2x2x10 3x3x10 4x4x10 5x3x10 5x5x10 6x4x10 6x6x10 8x5x10 8x7x10 2x2x12 3x3x12 4x4x12 5x3x12 5x5x12 6x4x12 6x6x12 8x5x12 8x7x12 2x2x14 3x3x14 4x4x14 5x3x14 5x5x14 6x4x14 6x6x14 8x5x14 8x7x14 10x6x14 10x8x14 2x2x15 3x3x15. These tools are tested to 1, 000 volts to meet IEC 60900 and ASTM F1505-01. Metric External Table Chart Thread Designations Sizes M 1. Fits and tolerance calculator for shaft and hole tolerance calculation according to ISO 286-1 and ANSI B4. ISO Hardware Specifications Table. They are available individually, in sets of hex keys, or even as a multi-tool with multiple sizes of hex keys integrated. Keyway, Parallel Key, Shaft Key Set for Fastening Many Different Equipments. RoHS. These reducers are most appropriate for basic motion and speed. Shaft diameters range from 5 to 35 mm. b x h width x thck. Search Featured Products Hex Flange Bolts Non-Serr. Watris Veiyi Parallel Square Stock Key, Shaft Feather Key, Key Stock Assortment, Parallel Drive Shaft Keys Sets, Pump Shaft Key, Flywheel Keys, Keyway Stock, Keyway Tension (140PCS) 8. $24. 2 Woodruff Key Size Table Chart ANSI B17. These tools are tested to 1, 000 volts to meet IEC 60900 and ASTM F1505-01. METRIC DIN 911 - Hexagon Socket Screw Keys mm FRACTION DECIMAL DIN 912 - Socket Head Cap Screws 13. all dimensions in inches. ISO 286 Chart Calculator. Keyway Length. These hollow shafts reduce system weight and allow you to run various media such as electrical wiring, compressed air tubing, coolants, or lubricants through. Inch-to-Metric Female Hex Thread Adapters. 19-1997 ; Keyway Stresses for Non-metallic Gears and Shafts Formulas and Calculator; Shaft (Arbor) Keyway Dimensionl Data - ANSI/ASME B94. 00. Mountable shaft collars with face holes are designed to mate directly with components such as sprockets, pulleys, and metallic plates. When installed, they fill oval keyways completely, reducing stress on the key and shaft. Bushings for Keyway Broaches. 0 out of 5 stars Great assortment, but metric not too practical in North America. They conform to ANSI B17. 094 0. The profile of a straight sided spline is defined by. Measure the outside of the threads (See Image 2). These metric 316 stainless steel threaded rods are more corrosion resistant than 18-8 and 410 stainless steel threaded rods and have. Cut it to length to create the machine key you need. 0, 1. txt) or read online for free. Choose from our selection of clamping shaft couplings, including over 4,100. 10X8X100. 50+ bought in past month. ← Keyway Size Chart Pdf Standard Metric Keyway Size Chart Pdf →. A spring automatically lengthens or shortens these U-joints to fit your application, making them a good choice for assemblies with frequent changes. 2180 Corporate Lane, Suite 104 ~ Naperville, IL 60563 USA Phone (630) 596-9000 Fax (630) 596-9002 E-mail: [email protected] 10 8 39 44 12 3. All orders placed on this website are handled entirely by computers. Available in 14 sizes in single and double disc models. 1/16" 3/32" 1/8" 3/16" 1/4" 5/16" 3/8" 1/2" 5/8" 3/4" 7/8" 2 mm. In stock and ready to ship. 316/316L stainless steel key stock has the best corrosion resistance of our stainless steel key stock and may be mildly magnetic. Price: $6. Lock washer. This shafting is true and straight and needs no turning, but if keyways are cut in the shaft, it must usually be straightened afterwards, as the cutting of the keyways relieves the. In a hole based system, the constant is the hub bore. •Material : 1045 Carbon Steel or Equivalent, Steel•Shape : Shape B For complete product overview and details on Spur Gear - Pressure Angle 20°, Module 0. Products. The bushing is similar to the QD style except it has an external key that fits into the driven product . The maximum shear stress occurs at the outer radius of the coupling and at the interface of the two bores. 0000 /-. It is often tamper-resistance and can be used with more complex requirements. Step Machine Key Stock. Balance the assembly by adding balancing clay to the workpiece. PITTSBURGH PRO. Fairloc® Shaft Collars are offered in. 0 out of 5 stars Great assortment, but metric not too practical in North America. Keyway Width. Recommendations for key size, length and keyway depth as a function of shaft diameter are provided in ASME Standards B17. In stock and ready to ship. keyways & keys dimension in accordance with BS 4235-1:1972: Specification for metric keys and keyways - Parallel and taper keysKeys standard metric keyways mechanicalMetric keyway shaft depth reference dimensions diameter iso r773 width Metric woodruff keys are supplied to din 6888 / iso 3912 in c45k keyKeyway metric dimensions keys. A square key is used if the deeper key depth is required to transmit torque. Key Stock , or bright steel, is a general term for a stock of square or rectangular bars 12 inches or longer in length from which machine keys are produced. Metric pdffillerWoodruff key cutter size. 16 mm. 5mm = 1 Key. 08. New diameter sizes (13, 16, 17, 18 and 22) are added for h9 tolerance types. 4. Choose from our selection of keyed bushings, including shaft collars, rigid shaft couplings, and more. 6 out of 5 stars 85. A woodruff key, also known as a half‑moon key, is a semi-circular machine shaft key that prevents gears, hubs, or other components from moving independently of a rotating shaft or spindle. Speed ratio is the. 4 mm. Made with two pieces, these shaft supports secure your shaft parallel to your mounting surface and make it easy. Square socket: A square socket set screw, also known as Robertson or scrulox screw drive, comes with a square protrusion on the tool. com: steel key stock, standard tolerance, metric, 2 mm thickness. 5 x 19 5 x 9 x 22 6 x 9 x 22 8 x 9 x 22 5 x 10 x 25 6 x 10 x 25 8 x 10 x 25 6 x 11 x 28 8 x 11 x 28 10 x 11 x 28 8 x 13. 316 stainless steel keys have excellent corrosion resistance, but aren't as strong as steel keys. For technical drawings and 3-D models, click on a part. Pedestal (35" Ht. Noncontact Magnetic Shaft Couplings. 070. Install a sanding sleeve on the threaded shaft of a bench or pedestal grinder using one of these drums. They are used for turning fasteners in many kinds of DIY, maintenance, and furniture assembly projects. 002, -. Exceptional concentricity. and SAE sizes makes it easy to find the tool you need — even smaller wrenches that don’t have a size printed on the shaft. 25 A system is two or more mating parts. Stress Concentration Shaft. 31 products. 18. Use the keyways with machine keys to transmit torque to gears, sprockets, and other keyed components. They can also be used to operate hatches, skylights, and other overhead components. Shaft key standard sizes rectangular gates keys diameters most non std readily available3 ways to convert within metric measurements Metric convert measurement measurements conversions easy way within units ways unit decimal number use worksheet larger move gradeAmazon. These keys have a rounded shape that makes them easy to remove when parts need to be taken apart frequently. Inch shafts 3/4 to 4 inch (larger upon request) 203 – 34,151 ft-lb (275 – 46302 Nm) SLD 2600. 1, the Metric key size is W x T. 2 metric standards . 5 out of 5 stars. Stainless steel and steel feather keys. 10X6X30. Showing 30 of 174. Worm gears use screw threads to make large reductions to shaft speed while transmitting. Change heads to use these tools as an open-end, box, square drive, or hex-key wrench. Gear C delivers 8 hp horizontally. 0010. in order to transfer the power from one shaft to. [3/31/23] Straight Rotary Shafts - Both Ends Tapped are available in 1045 Carbon Steel or Equivalent and 304 Stainless Steeland 4137 Alloy Steel or Equivalent, with the following options for Surface Treatment : Black Oxide, and. 6. Materials include carbon steel, stainless steel, aluminum, brass, copper, nylon. The keyway in the shaft is a semi-circular pocket, the mating part, a longitudinal slot. Allen (hex) key and hex bit sizes Hex key sizes chart Metric hex socket key sizes chart Spline key and bit sizes Drill bits - Jobbers length twist drills Drill bits - Straight shank taper length. Keys and key stock are small metal bars or wedges that fit between an output shaft and the hub of a pulley, gear, sprocket, or other rotating component. Metric – Rectangular B. Figure 4. In stock and ready to ship. The keyway dimensions are also different from the English system. 4375 1. Pulley and Sprocket Bushings. Free In-Store Pick Up. Typical steels for locknuts are: AISI, C1015, C1018, C1020, C1025, C1035, C1117, C1118, C1212, C1213, and C1215. $22. For example, a bevel gear mounted on a shaft might use a male shaft spline that matches the female spline on the gear, as shown below. We have in stock ready-to-use keys in inch and metric sizes; Key stock is very long so you can cut it into whatever size machine keys you need. These weld-on hubs are drilled, tapped, and taper-bored to make any sprocket, pulley, or gear compatible with our Taper-Lock Bushings. Width. 6-10 mm. Cutting a keyway using a broaching tool and a press. Some taper keys have a gib, or tab, for easier removal during disassembly. Design of Transmission Shafting (Second Printing) This Standard takes into account many modern theories and has been substantiated, in part, by laboratory testing. The following tables show standard dimensions for keys and their grooves. 99. Read more on how keys and keyways work and what types are available – Keys and Keyways. 094 0. For difficult-to-remove hubs and fan blades, use fan blade pullers (not included). Designed for shaft diameters from 0. Change heads to use these tools as an open- end, box, square drive, or hex-key wrench. Keyways Index. 5 44180 48 42. It has two ends. in Machine Elements & Structural Engineering. Threads are American National form, Class 3. It is often used as shafting, straight pins, rails, or for locating in a wide range of applications and industries. Find My Store. MISUMI. 8 mm. on it by means of keys or splines. 6 out of 5 stars 99. To. Description; Reviews; Product Description SHAFT KEY. 9 20 12 76 86. 6 mm. Add TO CART. 1-1943 Standard. Please note that the key sizes in. 8 4 4 13 17 5 2. If the allowable shearing stress is 50 Mpa. They are primarily used in compact applications like electronics and aren’t seen in every industry. Device used to prevent loosening of fastener because of vibration. 12 mm. Crank cotter pins are short shafts, threaded on one end, with a flat tapered so that the low end of the flat is at the threaded end of the pin. Re-design the shaft shown below to be a uniform,Metric woodruff keys are supplied to din 6888 / iso 3912 in c45k key All torque transmissions resourcesKeyway chart bore resources torque alltorquetransmissions. This stress can be derived from the torsion formula: τ max = T D o / 2 J. With shaft diameters of 3/8" and larger, these gear boxes transmit higher speeds and greater torque than Compact Right-Angle Gear Boxes. 4. January 1, 1985. Choose from our selection of keyed bushings, including shaft collars, rigid shaft couplings, and more. For technical drawings and 3-D models. Choose from our selection of stainless steel shafts in a wide range of styles and sizes. High-Torque Set Screw Flexible Shaft Couplings. In a hole based system, the constant is the hub bore. com Web site: (t) - DIM KeywayShaft Key Seat Depth Control Values S and T for Shaft and Hub ANSI B17. ANSI Woodruff Keys. 6% coupon applied at checkout Save 6% with coupon. Impact Tough 7-Piece x High-speed Steel Masonry Drill Bit Set for Hammer Drill. Low-ClearanceSide-Mount External Retaining Rings. Parallel keys are the most widely used machine key. 3. 104 0. 10 mm. Both keys and splines prevent a part from turning on a shaft. HX1-1/2 Bushing | 1 1/2" "H" Pulley / Sheave Bushing for Leeson Power Drive Sheaves. Also known as half moon keys. Install these keys in a drilled and reamed hole to locate fixtures and vises on your machine table. Interference Fit Bore Tol. A long handle with a comfortable grip allows these keys to be turned with less effort than other chuck keys. 1 - Recommended shaft basis fit 3. Keys are made of high strength steel, so if the key does break, diligently inspect all aspects of the system before replacing. 98. This type of key is used in areas where frequent removal of the key is necessary. 6. Specification for metric keys and keyways – Parallel and taper keys BS 4235-1:1972; Matching the woodruff key to the shaft diameter is also specified in DIN 6888Use them to connect gears and other components to shafts. js9 widthTaper keys. 3 mm. [3/31/2023] One end Taped Precision Linear Shafts are available in 52100 Bearing Steel Equivalent and SUS440C (13Cr) Stainless Steel Equivalent and 1045 Carbon Steel Equivalent and. All Product Categories. Install and remove these shaft couplings without disconnecting the shafts, motors, and other. Hex Nuts Metric per. Metric External Table Chart Thread Designations Sizes M 1. 5, 2. 1. ISO 3117:1977 - Tangential keys and keyways; In addition to these active standards, the Mechanical Power Transmission Association's excellent (and free) 18 page "Frequently Asked Questions on Metric Bores and Keyways in Couplings" PDF can be used to discover a number of no longer active (expired or withdrawn) bore and keyway. %&'. They're sized precisely for a tight fit around pipe, so they're often used to support pipe passing through floors and walls. 4 18 11 66 75 20 4. com Web site: (t) - DIM KeywayShaft Key Seat Depth Control Values S and T for Shaft and Hub ANSI B17. 1) Unless specified by the customer: 2) Actual shaft fit will vary depending on - Series S couplings supplied with actual shaft diameters. Keyway Width. 202 to 1012 Height Width Diameter Actual Length Full Radius Flat Bottom Distance Key Below Center No. for pricing and availability. 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. Type C - Keys with both ends round hole for one retaining screw (for sizes 8 X’7 and As noted above, when selecting a keyway tolerance, there are two common selections in the metric system. Shaft Couplings. Cut it to length. S. 386 0. Metric Shaft Keys are rectangular or square shaped keyways that are used to lock rotating elements onto a shaft. RoyMech Resources Keyways Taper Metric Key and Keyway Dimensions These Pages include various standards. RoyMech Resources Keyways Taper Metric Key and Keyway Dimensions These Pages include various standards. Max. 3 out of 5 stars 138. Shaft Keys fit into slots cut into a shaft and a component such as a pulley or sprocket creating an assembly that rotates as one unit. FREE delivery Thu, Nov 2 on $35 of items shipped by Amazon. ) at a maximum of 2 lobes or less than 0,0025 mm (0. Compared to plastic gears, metal gears are better for high- load, high- speed, and heavy duty applications. This catalog covers the features, benefits, dimensions, selection, and installation of various jaw type couplings, including the industry-standard L type. 5156 DIN 913 - Socket Set Screws With Flat Point. com: Yosoo Key Stock Assortment, 140Pcs Stainless Steel Key Stock Keystock Assortment Round Ended Feather Keyway Parallel Drive Shaft Keys Set 8mm 10mm 12mm 16mm 20mm 25mm 30mm. Note: Do not lubricate the bushing taper, hub taper, bushing bore, or the shaft. Straight Sided Spline Dimensions. 4 mm. TORX Offset T-Handle Hex Key Set, 6 Piece. 89. Steel C45 Plain. Nominal. They came to Fitchburg, MA, where the two eldest, William and Arthur began working in the yarn mills. Types - The keys shall be of the following types: Type A - Keys with both ends round. Specification Feather Keys Metric DIN6885 Specification Feather Keys. To confirm the status of any standard, identify the replacement standard if it is obsolete and/or purchase the standard please use. 19-1997This applies to both metric and inch woodruff keys. The precision SAE sizes are 0. In any case, keep in mind that adding a keyway to an existing shaft weakens the shaft. 1 to 266. 016 1/64Keyway Width. TORX Offset T-Handle Hex Key Set, 6 PieceTechnifast provide a varied range of keys including round end, square end and one round/one square end parallel keys (also known as feather keys), woodruff keys and gib head keys which are available in metric and inch sizes. 4. clearance fit bores with set screws. Slightly larger than the size listed in the table, oversized stock fits tightly in a keyway. They are adjustable and can tilt in key seat or keyway. Knurled Thumb Screws [DI. 8-9 mm, 7 mm, 10-11 mm. Metric keyways are dimensioned by width and depth as measured from the radius of the shaft to the center of the keyway. Leeson/AMEC. 062" 1/16" 0. Their extra depth in shaft reduces the overturning tendency in its keyway. We use keyed shafts in the gear and shaft assemblies in general. all dimensions in inches. 238 0. 5. If steel flakes off a standard tool and into the recess, it can lead to rust and contamination. Here, you can find detailed information about these machine elements. The product that started CLIMAX more than 50 years ago! A small but rugged machine able to cut full-depth keyways or mill flats quickly, without requiring extensive dismantling or costly set-up time. Shaft key standard sizes rectangular gates keys diameters most non std readily available3 ways to convert within metric measurements Metric convert measurement measurements conversions easy way within units ways unit decimal number use. Assortment has Step Key Stock for Shafts & for Gears (1) Oversized Assortment (1) Seven Pieces will Fit 11 Different Key Ways (1) Height (mm) Search Height. If you have a part number we can look it up just give us a call 586-463-5888 or email. Keyway (Shaft. Keyway slot tolerancesShaft keyway depth calculator Keyway shaft drive dimensions key belt double standard system metric solved width been load transcribed text showWoodruff keyseat sizes dimensions. Often used to secure gears and pulleys to shafts, these metric nylon set screws are lightweight and won’t carry an electrical current. When cut to length Key Stock fits into slots cut into a shaft and a component such as a pulley or sprocket creating an assembly that rotates as one unit. 800-243-0986 (US) or 203-775-4877 (INTL). Stainless steel and steel feather keys. Woodruff Keys - Metric - Nordex, Inc. Home; Metric Keyways Index page; Parallel Keys and keyway Dimensions; Parallel Keys and keyway Dimensions to BS 4235-1:1972 KeyWay & Key Dimensions. The keyway dimensions are also different from the English system.