G F = Ratio of yield point. It can therefore be seen that only something in the order of 10% effort is … Choose from our selection of nylock nuts, including over 700 products in a wide range of styles and sizes. Standard Prevailing-Torque Metric Hex Nuts Size Data Table Property Classes 5, … GMX Search – quick, clear, accurate. zip. Short answer: no. The prevailing torque in prevailing torque locknuts comes from localized plastic deformation to an interference fit with continuous sliding during assembly. 0000000016 00000 n
Make your own chart. Choose from our selection of nylock nuts, including over 700 products in a wide range of styles and sizes. 0000045681 00000 n
While the nut is suitable to be reused multiple times, be wary of the damage caused to the nyloc threads. correct torque can however present problems. Here’s an example. Torque Specs For Nylock Nuts . Dimensions shown are in Inches, if you wish to convert to mm, please use ouruniversal converter. Elastic stop nuts and prevailing torque nuts are of the particular type where some portion of the nut deforms elastically to provide a locking action. The rule of thumb is to add the prevailing torque to the torque value when applying torque to a Nylock nut. 0000016802 00000 n
The NE series is the most common style of lock nut used in industry. 2620 39
μ th = Thread friction coefficient μ h = Under head friction coefficient 1 N = 0.225 lb 1 Nm = 0.738 ft-lb. 0000049936 00000 n
1.8–2.8 Nm. After installation, the residual stresses from the elastic part of the deformation cause the prevailing torque friction forces. 0000054975 00000 n
The nut is now tightened till the torque value is reached. Nylok® Blue Nylon Torq-Patch® Tuflok® Prevailing Torque Locking Element. trailer
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ANSI Hardware Design Guide Design Torque and Force Calculations. Wing A nut with ‘wings’ for hand tightening. NYLOC NUT DIMENSIONS - IMPERIAL FULL NUT DIMENSIONS - IMPERIAL - BS1083 1965 HALF NUT DIMENSIONS - IMPERIAL - BS1083 1965 The values shown in the chart are to be used as a mid-range guideline. All other torque values are in foot lb. Title: Metric Bolts, Screws & Nuts: Tightening Torques Author: Fastener Mart Created Date: 8/12/2006 10:22:23 PM 0000039170 00000 n
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All transactions with Nylok LLC are subject to Nylok LLC’s terms and conditions. Thread Coeff Friction Preload (Kn) Property class Tightening Torque (Nm) Property class Min Breaking Torque; A1-50 A2-70 A4-80 A1-50 A2-70 A4-80 A1-50 A1-70 0000009388 00000 n
Once tightened, the nylon insert prevents the nut … RE: bearing retaining nut torque specifications rmw (Mechanical) 26 Jun 10 16:12. Prevailing torque of the lock nut should be determined by testing an actual nut and fastener and that number should be added to the desired torque to arrive at a torque spec. Using nylock nuts allows you to use it repeatedly without damaging the threads of screws, but it comes at the cost of damaging the nylon present in the nut. The same as it was without the nylock. )Terms and Conditions of Sale - Conditions of Purchase - Service Agreement, Torq-Patch Locknut RoHS / WEEE Compliance, Resistant to lubricants, fuel, hydraulic fluids and most commercial solvents, Can be applied to any size or thread configuration larger than a M6/1/4” nut, Bonds to a broad range of fastener finishes, Complies with or exceeds IFI, DIN and major OEM specifications, Is not affected by high humidity conditions, 180° (standard) or 360° (optional) radial coverage, Torque can be adjusted to meet specific applications, No metal removal to reduce fastener strength or performance, Color: blue/red (special colors available upon request), Temperature Range: -56°C (-70°F) to +121°C (+250°F), NYLOK® TORQ-PATCH® locknut is also referred to as TUFLOK®, First Removal Prevailing Off Torque (without preload): min. 0000030245 00000 n
3) Top insert, two-piece construction nuts which derive their prevailing-torque characteristics from an insert, usually a full ring of non-metallic material, located and retained in the nut at its top surface. The resistance to loosening forces is created by distortion in the top threads. Nylock Torque Values . Torque Table. The nut is locked by means of three radial brass locking pins arranged at the same angle as the thread flanks. Self Locking nuts have a thread locking system that resists the screw reverse turning or backing off; most nylon insert systems possess a nylon 66 thread interference characteristic that resists loosening under vibration. 0000026674 00000 n
This was an iPart pulled originally from www.cbliss.com and we broke them apart for our library. If you set up a nut and bolt in a Skidmore-Wilhelm load cell and tighten the bolt to a certain cut-off spec using a torque wrench, the actual measured tension will not necessarily match the tension stated on the torque chart. 0000001560 00000 n
This metal to metal contact results in a positive resistance to vibration and loosening. Metric DIN 980 All Metal Prevailing Torque Type Hex Lock Nuts are also known as Stover Lock Nut, Top Lock Nut, Crimped Lock Nut, Oval Lock Nut. They are referred to as ‘prevailing torque nuts’ or 'stiff nuts'. 0000014050 00000 n
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Torque Values Stainless Steel Bolt Table Chart. The AutoCAD download is all … nuts equal 75% of the bolt proof loads specified for SAE J-429 Grade 8, and ASTM A-354 Grade BD bolts. Bolt Torque Chart PDF . 2620 0 obj
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Bolt Nut Recommened Torque Table for SAE Grades. nuts are high pre-cision compo-nents. 0000019544 00000 n
They cannot be used at elevated temperatures. Nylok® Blue Nylon Torq-Patch® Tuflok® is a self-locking element comprised of nylon permanently bonded onto the threads of a fastener. When torquing a self-locking nut, the nut should be run down on the threads of the bolt until the nut almost contacts the mating surface. If you want the iPart, you can pull it from the cbliss site. Recommended Bolt Torque Values for Stainless Steel and Nonferrous Fasteners (inch series). When tightening according to guidelines and with no deviation, this is the pre-stress achieved expressed as % of yield point. 50 times or nylon lock nut having a conical top with chamfered corners dry fasteners find! Is securely installed this metal to metal contact results in a positive resistance to loosening forces is created by in! Forces is created by distortion in the top threads the deformation cause the prevailing torque and... 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