1/2 to. 95 7. Roller chain sprockets max hub diameters. 8mm 2. 5 +. Preferred Keys. Over To (Incl. ASSA ABLOY Door Security Solutions :: Extranetu 17 Standard keyways u 5 T Series keyways u 6 Premium keyways u 4 Restricted keyways How to Order IC Cores: Keyway Chart UncombinatedMBS-IC7 A 626 CombinatedIC7 A COMB626 Standard Keyways T Series Keyways Premium Keyways Restricted Keyways 6 and 7 Pin 6 and 7 Pin 7 Pin Only 7 Pin Only 1C Arrow TA WA YA. Std bore keyway and SS size infoAllowance must be made for keyway and setscrews. Option2: Use 3 multiplex keyways with 6-pin cylinders. Keyway additional modification is available for both single. 0005. Lid Chart. In addition to delivering one-key convenience, the SC1 technology’s patented SmartKey Security™ Technology protects against common break-in methods including lock picking and lock bumping. All sizes are in inch units. 39. In stock and ready to ship. 5000 2. 2 Woodruff Key Size Table Chart ANSI B17. W is the key width. BEST Standard key systems are durable and offer a wider range of options, providing the precise, carefully managed masterkey applications that make BEST one of the industry leaders for masterkeying. Open keyways are best applied as a cost-effective solution on interior doors, but only where asset protection needs and break. Standard Metric Keys Keyways for Metric Bores with One Key; Keyway Cutter Hole Keyway Dimensional Data for MIlling Centers and Arbors - ANSI/ASME B94. Concavity I. We carry a wide range of products with keyways, including bushings and roller chain sprockets. 1 Recommended uniform relationship between shaft diameter and key sizes for parallel and taper keys. The slot is defined as a keyway or a. I typically use +0. Keyway standard dimensions keyseat pdf printer friendly information. Imperial systems use inches and feet, and these are the standard units of measurements. 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 Keyway Dimensions Key Dimensions The inch and metric. Bore and Keyway dimensions comply with ANSI/AGMA 9002-B04 Standard. 3 Keyseating - The operation of prociucing key- seats. Everest 29 cylinders in S123 keyway with two patented keys are standard for stock. Standard keyway dimensionsKeyway chart Keyshaft keyed shaft, diameter 1 7/16 in, keyway 3/8 in x 3/16 inKeyway slot key shaft keyways internal external suitably drill milling produce sized required access form machine fit. 1/2. 125). Also available with some optional keyways. 3) Keyway fillet radius to be specified by customer. Max. Size Size I Note: All bushings include a set screw QD Bushings - Dimensions (inches) over the keyway. Cylinder Standard: brass, 6-pin, L4 keyway, 0-bitted. †. The sizes and tolerances contained. 4235 : PART 1 : 1972 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 Standard shaft sizes key bushing table qd non bore keys shallow range gates includes specific each alsoKeys shaft rectangular types key chart hub designs tapered machine selection Keyway bore coupling keyways bores metric chains wxhGates belts, hoses, and applications: standard & non-standard shaft key. L – System Stock Keyways C – System Hotel Keyway (Furnished in Large Bow only) H – System Contract Master Key Systems R – System Contract MasterKey Systems Standard 6 pin. 35 0. Specification. 3mm 2. BEST offers a quality line of bi-fold, bypass and pocket door hardware. O. Height, H . 2 1. Arbors and arbor spacers have standard keyways. 25 Series 2 0. 1875 0. Backed by BEST’s masterkey and key management expertise, the Preferred system is backwards compatible with all BEST Peaks systems, as well as other major brands of locking hardware, making universal keying system replacements or upgrades simple and economical. Two keyways may be specified by the customer. 71 7. To confirm the status of any standard, identify the replacement standard if it is obsolete and/or purchase the standard please use. Keys shaft rectangular types key chart hub designs tapered machine selectionStandard keyway size chart Metric woodruff keys are supplied to din 6888 / iso 3912 in c45k. Sunday: closed. The keyway types have been separated into three functional groups. Cylinders: Solid brass cylinder and plug. the depth at the side, but in the metric system the keyway is dimensioned by the width and the depth measured from the raduis of the shaft to the center of the keyway. 4 Broaches and 9 Bushings = 18 Keyway combinations. − S2 − S1 b 25 25 ℓ 1. Metric Keyways Index page; BS 46 Square Keys and keyway Dimensions; BS 46 Square Keys and keyway Dimensions Ref. Upload solidcad. Tolerances and fits comply with, or are within, AGMA 9002-A86 standard (Class 1 clearance fit). 92 7. This catalog covers the features, benefits, dimensions, selection, and installation of various jaw type couplings, including the industry-standard L type. Metric module, side fit. (Dimensions comply with DIN 6885/1). 657. Use them in light duty applications to connect gears and other components to shafts. If a plain straight through bore is needed, choose “NO” on this option. Cylinders: Solid brass cylinder and plug. clearance fit bores with set screws. 3mm 5mm 5mm 5mm 5mm 6mm 6mm 6mm 8mm 8mm 22mm 24mm 16mm 17mm 19mm 20mm 25mm Keyway Width (w) 10mm 3mm 3mm 1. Keyway Tolerances. Obverse family includes the Schlage C keyway, one of the most commonly used, open keyways in North America. 6 - M 18. idw Author: Todd Ryan Created Date: 4/22/2008 8:59:43 AM. Inch (ANSI/AGMA 9002-B4) Metric (ISO/R773) Design of Square Key and Keyway (Wood Ruff) Stress, Shear and Torque. CONVERSION CHART Decimal Equivalent of Fractions and Millimeters. In manufacturing upon 6885 Information used with permission ot Martin 02007 Shatt Keyseats/Hub Keyways Standard Keyseats/Keyways Sra' IoW Square Keyways Metric: WxHKey W x T2 Keyway American Standard — Keys and keyways. 10 Standard Set Our best selling Broach Set. Thin parallel keys and their corresponding keyways (Dimensions in millimetres) 95. Shaft Keyseats/Hub Keyways Standard Keyseats/Keyways. n When referencing the Lovejoy UPC number in this table, include 685144 as a prefix to the number shown. in addition to a variety of pin out and color code differences, each of these connectors also has distinct keyways. 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, durability and performance you can trust. Therefore, keyways are required both on the shaft as well as the hub of the mating element. 487 Minimum 2. Unless otherwise specified, the shaft keyway is assumed to be standard. 92 3. We would like to show you a description here but the site won’t allow us. Shaft standard key sizes table non bushing bore keys qd shallow range gates includes specific each alsoKeyway sizing chart Keyway metric key iso dimensions standard keyways r773 keys pdf bores shaft hub depth diameter standards engineering table edge widthMetric machine keys. 5,. The designations of SKF bearing accessories follow a system that consists of a product type and size identification with or without a suffix. 94 6. Standard External Metric Thread and Fastener Sizes M 0. ALL KEYWAYS THROUGH 1/2" ARE NOW PM-M4! Order broaches by numbers found in first column. ANSI Woodruff Keys. Use them in light duty applications to connect gears and other components to shafts. 99. 25: 2 ANSI_B17_1-Keyway_Dimensions. The chart cannot be used for this calculation. Shaft standard key sizes table non bushing bore keys qd shallow range gates includes specific each alsoKeyway sizing chart Keyway metric key iso dimensions standard keyways r773 keys pdf bores shaft hub depth diameter standards engineering table edge widthMetric. 97 rosette and compression ring • Optional Collars/Spacers available . 004/0. Square. pdf Gates belts, hoses, and applications: standard & non-standard. b x h 1 x D. on each of the shafts over the keysBy accepting cookies you agree to let us store cookies to personalise content and ads, provide social media features and analyze site usage. 95. Keyways: Falcon “G” keyway standard on standard ⁄ 4. Schlage Keyway Types. 3mm 2. We actively support new and existing BEST Standard systems. This standard is applicable to couplings as defined in ANSI/AGMA 9009D02, Flexible Couplings - - Nomenclature for Flexible Couplings, with inch bores and keyways. Other belts may work with the pulley, but the fit into the v-groove will be different. The size most commonly associated with screw threads is the nominal diameter. We can provide keyed shafts in any length up to 20 foot. Keyway metric dimensions keysShaft diameter solid keyway text uniform shown re below factor transcribed show Keyway-and-key-size-dimensions. What happened to the previous variety of keyways including; RU46,. TruKey® Shafting from Keystone is designed to provide the straightest, most accurate keyed shafting, in the industry. Open keyways are best applied as a cost-effective solution on interior doors, but only where asset protection needs and break. 90mm x 279. Technical Information Keysteel & Chalk Catalogue Keyway Standards – IMPERIAL 2. Choose from our selection of rectangle keys, including over 950 products in a wide range of styles and sizes. only, “C” series keyway supplied standard, unless otherwise specified . This Standard covers the size, type and tolerances of parallel and taper keys and keyseats, and their relationship to shaft diameters and bore diameters. Page 1 of 3. English Standard Keyway and Key Sizes Shaft Diameter (in) Keyway (in)* Key (in) From To Width (W) The following tables show standard dimensions for keys and their grooves. 3) Keyway fillet radius to be specified by customer. 125. Shaft key keyway guide selection base diameter transmission mechanical knowledge. Keys shaft rectangular types key chart hub designs tapered machine selection5/8" od keyed shafting with a 3/16" full keyway Metric key keyway dimensions per iso/rtt3 js9 widthMetric key keyway dimensions. Use individual keyway broaches in a variety of arbor hole sizes. Style D - Sprocket with a detachable bolt on hub attached to a plate . For more information, contact our sales department at 906. 813 3 . Keys and keyways BS 46 Part 1 : 1958 Keys and keyway Dimensions-Parallel Rectangular Adve Radius 0. 4375 1. 0mm to 26. Standard Keyway Size Chart. This standard covers the size, type and toler- ances of parallel and taper keys and keyseats, and their relationship to shaft diameters and bore diameters. 2. The following is summarized from the American National Standard Keys and Keyways for Milling Cutters and Arbors ANSI/ASME B94. Hub Dia. STANDARD KEYWAYS AND SETSCREWS STANDARD BORE TOLERANCES . 563 3 . Divide that number by 3. 2-1967. Couplings • Standard Metric Keys & Keyways for Metric Bores with One Key (Page 2 of 2) All Types Metric Key & Keyway Dimensions Per ISO/R773 – P9 Width Tolerance (See Pg. H is the key height. 25 - M 1. All of the measurements listed on the product pages in inches without the keyway width or depth. Also, T 1 and T 2. Metric Key Keyway Dimensions Per ISO R773 Js9 Widt. Ansi Standard Keyway Sizes Pdf is available in our digital library an online access to it is set as public so you can get it instantly. Also known as half moon keys. Keyway standard dimensions keyseat pdf printer friendly information. Keyseat — An axially located rectangular groove 1a a shaft or hub, This may also be waitten fs shaft keyseat or bub keyseat when describing the exact application, Hub keyseat has been sometimes referred to an a keyway. ANSI B17. Standard External Metric Thread and Fastener Sizes M 0. PLUG The part of a cylinder containing the keyway and with tumbler chambers usually corresponding to those in the cylinder body. 000 +. We carry a wide range of products with keyways, including bushings and roller chain sprockets. 125 4 . Keyway shaft roymech tolerance Gates belts, hoses, and applications: standard & non-standard shaft key Keyway metric broach keyways broaches. 5, 6 or 7-pin are available on standard cylinders. The tolerance zone for shaft keyway width b with normal fit is ISO N9 and with close fit ISO P9. 125 4 . Slide QD bushing on shaft, flange end first. 002 on the key. 3/32" 1/8" 3/16" 1/4" 5/16" 3/8" 1/2" For Shaft Keyway Height. The core features four main components: The plug, shell. Typing 10. According to the changing application, there are different kinds of shaft key and keyway applications. σ0 = F/A, where A = πd2/4. To order interchangeable core cylinders with locksets, specify by cylinder or core model number. Email. Check Details. Metric Key & Keyway Dimensions Per ISO/R773 – D10 Width Tolerance ‡. British standard keyways. Rework Charges for : Rebores, Keyways, additional setscrews - P. Financial Planning for your Future. Arrow Pointe IC core products offer dealers unmatched flexibility and keying options. 125 2 . Height. 1 Square Keyway Tolerances Minimum 3. 005, -. each side of the keyway offers creation of virtual keyways for a key control system along with the special actual keyway for the keys. Keys and keyways . keyway chart hallite web the following tables show standard dimensions for keys and their grooves metric rectangular standard shafts and keyways. Nominal Shaft (Arbor) Keyseat Cutter Hole Diameter: Nominal Size Square Key: Cutter Hole & Keyway. 342 Minimum 3. O. It is, therefore, keyways are required both on the shaft as well as on the hub of the mating. Record any markings on the hub, the. All dimensions are given in inches. It is also possible to make a calculation. Reversible in the field. S. 5/16" 3/8" 7/16" 1/2" 9/16" 5/8" 11/16". 020 0. We also have an Imperial Keyway Calculator. Clearance Fit Bore Tol. 2. You will also find. Keyway Sizes Broach Style Bushing Diameters (bore sizes) 1 /8, 3 16 B 1 /2. This International Standard specifies the dimensional characteristics of thin parallel keys and of the corresponding keyways in shaft and. 010 Height (d) (t) - DIM Keyway Width (w) AGMA 9002-A86 Inch Bore and ANSI B17. Option1: Use 1 keyway with 7 pin cylinders. You can think of them as being Internal (Holes) or External (Shaft) features. * 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). 010 Height (d) (t) - DIM Keyway Width (w) AGMA 9002-A86 Inch Bore and ANSI B17. To view the full content, you will. NOMINAL SHAFT DIAMETER BOTTOM OF SHAFT TO BOTTOM OF KEYWAY WIDTH. Restricted Keyways Special non-stock keyways set aside for limited use and a higher degree of key control. Max. 1/16". Standard Calculator Bore Size. 000. - Series F couplings supplied with 4) All dimensions per AGMA 9002-A86 interference fit bores without set screws commercial standards. - Series EL couplings supplied with B +0. 75 2. REFERENCE DEPTH. Rectangular or square parallel keys. The Standard provides informationon surface texture and welding,and the. 6 or 7-pin are available on interchangeable core cylinder. 1/2” (0. British Standard :BS 46 Part 1 : 1958 Keys and keyways and taper pins. 625 1 . Width Depth Width Depth 51 58 16 4. 8 7. S. S. 424 Minimum 2. 469 Minimum 3. 3 16 10. MOUNTING. Chart shows how XC key is fully compatible with non-XC cylinders Master Sections Key Blank Key Sections Plug Key Sections SARGENT Key Blanks Master Key Section (6 Pin) Day or Change Key (6 Pin) Catalog Number 11-X6270 Catalog Number. Arbor and Keyseat . Shape and dimensions of parallel key and keyway Shape and dimensions of taper key, headed taper key and keyway Excerpt from JIS B 1301:1996 S1 = b's tolerance× 1 2 S2 = h's tolerance× 1 2 h2 = h, f = h, e ≒ b S1 = b's tolerance× 1 2 S2 = h's tolerance× 1 2 Key body Cross section of keyway Key bodyvertical center line of the keyway. CORMAX and Standard cores, it is an ideal hybrid solution for retrofit projects. Interference Fit Bore Tol. Keyway broaches are used for producing keyway-shaped holes in a workpiece. A letter of authorization from the end user is required to process orders for keys, blanks and cylinders. Designation system. The following is listing of those standards: Standard Description BS4235 P Woodruff keys and keyways – same as ISO 391 BS46P1 Specifications, Keys and Keyways – obsoleteThey are called “keys” because they lock a component to the shaft by means of a corresponding keyway in a shaft. Transeals - Keyway Chart. Because they're usually shorter than. 0 to 45. 7500 3. SECTION D-D Drawing Callout Dimension / Specification Concavity Depth Concavity O. The charts supplied by endmill companies is a starting point only. These keys have a rounded shape that makes them easy to remove when parts need to be taken apart frequently, such as for maintenance or prototyping. BS 5686:1986, ISO 14-1982: Specification for straight-sided splines for cylindrical shafts: metric nominal dimensions, tolerances and gauging requirements. 10 Standard Set Our best selling Broach Set. Keyway Sizes Broach Style Bushing Diameters (bore sizes) 16, 3 32, 18 A /4, 5 16, 3 8, 7 16, 2 EDP No. Home. 000, depth. Table 2-1 Standard Values of Module unit: mm Series 3 0. Regular. Keyshaft keyed shaft, diameter 1 7/16 in, keyway 3/8 in x 3/16 inKeyway parallel keyways metric t2 wxh bores Keyway keyed keyways boresGates belts, hoses, and applications: standard & non-standard shaft key. Regular core (suffix keyway to number) Uncombinated Combinated 6-pin 7-pin 6-pin 7-pin Standard C646 C647 C606 C607 Best® style capping CB846 CB847 CB806 CB807 No logo C648 C649 C608 C609 No logo, Best® capping CB848 CB849 CB808 CB809 Note: Specify core number, keyway. Standard Keyway Size. 8mm 2. Keyway key parallel jis sizes tolerances 1301 mm 1996 pulley excerpt unit techKeyway metric Table aii-12. 000 +. Read more on how keys and keyways work and what types are available – Keys and Keyways. 125 2 . BIS IS 2048 : 1983 AMD 2 2005. 1/16) d bolt Cap Screws Grade 5 Set Screw Bushing A B D E L Required Qty. Shallow keyway depths must exceed 2/3 of the full keyway depth of the square keys shown above. Face Width Face width is limited in its maximum dimension to allow proper. Only Schlage provides 6-pin Everest 29 cylinders in the S123 keyway with two patented keys standard for stock. Key Seat Key Keyway Key Standard Keyway and Key Dimension Bores Keyway Key SF-STL 9/ 16 3. Thought it might be interesting to have a thread with pictures of the different Best SFIC keyways. ANSI B17. Regardless of which unit of length you're using, you'll need to measure the following: width, height, and length. Furnished with two nickel silver keys standard. This adherence is important — because, in mounting the bushing, the tightening force of the screw is multiplied many times by. ALL KEYWAYS THROUGH 1/2" ARE NOW PM-M4! Order broaches by numbers found in first column. 0947 :. Fastener or stud. They conform to ANSI B17. Everest 29 S145 is the default keyway for new master key systems. The collar rests on top of the workpiece rather than being supported from below. Design of Square Key and Keyway (Wood Ruff) Stress, Shear and Torque. Machine Key Comprehensive Guide. Table of tooth dimensions module. Chart 1 shows an example KB A with the top row showing the masterkey cuts- 11111, and the vertical rows showing the change key cuts to be used with each masterkey cut. Machine keyway to recommended size and tolerance listed per Table 5. 1890 0. Welcome Location Transmission Bushes Pulleys Belts Vector Belts Roller Chain & Sprockets. a) PSfrag replacements b) Figure 1: The two standard keyway ends for parallel keys. The stress concentrations at the keyway end are most severe for the profile keyway, so with respect to fatigue the sled-runner is the best design. 001 - . pdfStandard bore and keyway tolerances (inch and mm) keyway. (Square) Max. Turck Inc. 1-1967 standard and given in the following table. All-Section Key. S145 is standard for new master key. Standard and/or project Stage TC; ISO 14:1982. 4mm 1mm 1. Keyway Size Chart - Farrell BearingsANSI Standard Woodruff Key Size Table Chart ANSI B17. bore and key chart, keyway chart, keyway sizes. Length Thru. The core. The key length should be less than 1. Cylinders: Solid brass cylinder and plug. Categories. For a key to function, the shaft and rotating machine element must have a keyway, also known as a keyseat, which is a slot or pocket the. A list of standard keyway and corresponding key. 360 Minimum 2. Schlage uses CNC milling complex keyway shapes to mechanically prevent some non-OEM keys from entering or operating a lock. Select your units as required. Reversible in the field. 81 9. For example: a keyway. Keyways cut in certain area’s on the shaft. 100% 100% found this document useful, Mark this document as useful. 15 0. AUTOMATION & IIOT. The keyway is a longitudinal slot in both the shaft and mating part. Keyway Dimensions for Bores. 002, -. - Series EL couplings supplied with Woodruff Key Assortments. The most familiar lock brand in our region is Schlage. Also available with bump resistant option. 063 3 . Spliced tub girders have successfully been used in the HOV Direct Access Bridge over Interstate 5 in Federal Way, Washington. 4235 : PART 1 : 1972British 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. Competitive keyways: AB, BB, CB, DB, EB, FB, GB, HB, JB, KB, LB, MB, QB Arrow SFIC Lock Cylinders 6025 Cinderlane Parkway • Orlando FL 32810 • 407. Handing: Right hand is standard; left hand optional. Average Weight (Approx. Keys 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. Metric RectangularB. 0015 0. 0 E. 16~0. 000 -0. Quantity Trim Lock Cylinder Pins Keyway Keyset Hand Thickness Finish 50 AUR 8805FL K100 6 XX AA1 RHR 1-3/4" 626 Collar - 1765 furnished standard when ordered with lockset. 4mm 1mm 1. 2; Thread Shear Area for External and Internal Formulas and Calculator per. length, 136700. The key length should be less than about 1. b x h width x thck. In general, sunk-type shaft keys are the most common type. Keyway Bore Diameter Size Bore Reference -0. Depending on the size bore chosen in step 3, Sunray will broach a keyway according to this standard keyway chart (click here for chart). 74The following is summarized from the American National Standard Keys and Keyways for Milling Cutters and Arbors ANSI/ASME B94. The final consideration with sizing is the thread size and location of the set screw. all dimensions in inches. AUR8807FL x RH x 2196 x 626 or AU5407LN x RH x 1210 x 626. The profile keyway is cut by an end-mill while the sled-runner keyway is cut by an ordinary milling cutter. 0284, email us, or fill out and submit our online request for quote form. All sizes are in inch units. (Ilco/JMA have Air/00, Sky/04, Gold/G3, Platinum. 0 reviews | Write a Review. Shallow. Choose the right keyway and key control Classic keyway Rectangular Keyways Metric; WXHKey W x T2 Keyway ISO Standard — mm Snart Dlameter WI dth Groove dimensions keys DIN 6E-ga Shut 1 (With • 1972. Lock nut, dimensions in accordance with ANSI standard, normal series. They also require a guide bushing for producing the keyway. Shaft and Arbor Class E and F . ). Set Screws. STANDARD MOUNTING ASSEMBLY FOR QD SHEAVES AND SPROCKETS WARNING: Because of the possible danger to person(s) or property from accidents which may result from the improper use of products,. 4. Get In Touch. Available 5-, 6- and 7-pin. 004, -. Security cylinder optional; see Quick Codes. 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. Standard Keyway Sizes. Shaft Diameter. Lid Chart. BS 46 Part 1 : 1958 Square Keys and keyway Dimensions. Install them in keyways to transmit torque from shafts to gears and other components. --keyway dimensionsKeyway chart diagram hallite. As noted above, when selecting a keyway tolerance, there are two common selections in the metric system. Standard Key and Keyway Sizing English Dimensions: Keyway: W x T Key: W x T Metric Dimensions: Keyway: W x h Key: W x T Common dimension specification Keyway Dimensions Key Dimensions The inch and metric dimensions here correspond to common values. 3) Keyway fillet radius to be specified by customer. Shaft Diameter Key Size Keyway Width Keyway Depth Keyway Radius "D" Nominal Hub "W " Hub "T2" "R" Over Thru Width "W" Height "H" Nominal Min.