Norbar torque tool tester display instrument part no. Here we demonstrate the safe and accurate use of a torque multiplier using our high ratio gearbox 26. Norbar torque tools manufacture an extensive range of high quality torque wrenches, pneumatic and electric high torque assembly tools and torque auditing equipment. Analysis of bolt torquing by clement rajendra, pe progress energy, southport, nc 28461 introduction. Description this section contains information on the correct usage and identification of bolts, flat washers, lock washers, nuts, lock nuts, fittings and torque data. All the torque tools, and measuring devices produced by norbar.
Square drive hydraulic wrench with impact sockets, individual torque calibration for rad tool cradle regulator, lubricator and water trap. Tighten up the bolts securing the base plate to the base. Engineering toolbox sketchup extension online 3d modeling. If the units differ between your wrench and the service manual, use the norbar app to. A torque wrench is a tool used to apply a specific torque to a fastener such as a nut or bolt. Norbar has devised easytouse online calculators that support the correct application of torque in three key areas. Bolt, one of the most widely used fasteners in the industry, is usually tightened by applying torque to the head andor nut. Standard products are available up to 47,500 nm 35,000 lbfft and specials to 300,000 nm 220,000 lbfft. Norbar torque tools excel assembly solutions page 3. Most torque wrenches are used for tightening nuts and bolts. How to use a torque wrench electrician apprentice headquarters. As some customers require more flexibility than the basic trucheck model, the plus adds a comprehensive range of features. Neill brodey of norbar torque tools with a vistage membership testimonial, find out more on our blog.
Often the service manual will instruct you to replace bolts that have been. Loosely speaking, torque is simply the application of a force, some. For the love of physics walter lewin may 16, 2011 duration. Improvised torque wrench improvised torque wrench with luggage scale. Torque values chart for common bolt sizes n tractor club. These formulae may be used for bolts outside the range of the tables overleaf. And the most widely used instrument for measuring torque applied to threaded fasteners is the torque wrench. Applied torque supply the full range of torque tools from norbar including the handtorque standard series norbar handtorque multipliers standard series this site uses cookies to improve your experience. The primary office and factory location is in banbury, united kingdom and there are also norbar sales, service and calibration facilities in australia, united states, new zealand, singapore, china and india. Norbar s electronic torque tool utilises patent pending motor technology to give unprecedented joint control. Norbar handtorque ht 1 operators manual pdf download.
Secure tst to a flat surface with the 2 bolts and hex key provided. Year engine idvin engine displacement liters cc cylinder head bolts main bearing bolts rod bearing bolts crankshaft damper bolts flywheel bolts manifold spark plugs lug nuts intake exhaust 1996. There is no need to make a thread longer than is necessary to tighten the joint as this will only make the screw. During maintenance activities in a power plant environment, the plant engineer is often called upon to make decisions concerning bolts in bolted connections in a variety of situations. Grade 2, 5, and 8 values are for slightly lubricated bolts. The required torques for fastening common steel fasteners can be found in the bolt torque calculator. As the bolt is tightened, it is stretched preloaded. When installing electrical equipment youll be required to use a torque wrench. Set the torque wrench to the 30% torque value and apply the torque wrench in the crisscross pattern for that particular flange until all bolts have been tightened once. Fundamentals of torquetension and coefficient of friction testing. Lubed means cleaned, dry bolts, lubricated with standard medium viscosity machine oil. Operating wrench too quickly or with too much force may cause you to miss the exact torque setting.
Reliability and accuracy are critical to success, and worldclass manufacturers around the world know that they can rely on norbar to provide the equipment that meets these requirements. Add the engineering toolbox extension to your sketchup from the sketchup. Fastener tech sheet, metric torque values grainger. For over 60 years, skidmorewilhelm has provided testing equipment to fastener users around the world looking for answers to basic questions about torque and tension. The norbar twl1500 torque wrench loader is designed to test torque wrenches up to a maximum capacity of 1500 n. Bolting procedures hydraulic, torque, wrenches, pneumatic. Torque charts, tool brochures, torque equipment manuals. Norbar torque tools ltd, beaumont road, banbury, oxfordshire, ox16 1xj, united kingdom.
Torque wrenches 17 professional torque wrench the professional is norbars core torque wrench range containing the most popular models and the most model variants to suit almost every application. Pneutorque tools are reversible, non impacting, torque controlled bolt tightening. This setting system is designed to discourage unauthorised alteration. Norbar is a global manufacturer of tools for tightening nuts and bolts accurately. Engineering fundamentals of threaded fastener design and analysis by ralph s. It should be noted that these figures are based on the first tightening of single assemblies in isolation. Looking for grainger approved fastener tech sheet, metric torque values 5dff8. Engineering toolbox resources, tools and basic information for engineering and design of technical applications. The transducer selection button is labeled int for internal or ext for external.
We developed the first bolt tension calibrator for the construction industry in response to their need to test high strength bolts on site. Plus version allows a selection of torque units, three modes of operation click, dial and track. Operate your torque wrench in a smooth and steady manner and remember that one. Operator s manual special hydraulic wrench calibration fixture part number 80030. More than 70 years of torque wrench manufacture has shaped this range and no aspect of design,manufacture or materials is taken to chance. A torque wrench is a calibrated tool that is going to apply a certain amount of load to a nut or a bolt. Developing good bolting procedures can be a monumental task if you do not. Us recommended bolt torque bolt depot nuts and bolts. Apply suitable axial tension it is best to do axial tension control for tightening screw, but actually it is difficult to measure. The voice of torque control toggle main menu visibility. With three modes of operation the trucheck plus is suitable for. Astm a325 is an astm american society of the international association for testing and materials international standard for heavy hex structural bolts. New professional torque wrench has been reengineered to be even more accurate, durable and easy to use. Any torque wrench within the systems maximum capacity can be tested in the horizontal plane to their appropriate standard.
Norbar 15016 automotive 12 drive reversible ratchet torque wrench. Several discussions in this technical section stress the importance of preload to maintaining joint integrity. An bolt torque for oil free cadmium plated steel nuts and bolts inch. For simple, cost effective testing of torque wrenches.
Allows torque tool performance to be monitored and tools kept in peak condition. Norbar 15016 automotive 12 drive reversible ratchet torque wrench is available to buy online at caulfield industrial. M8x25mm long bolts from the smart torque block bolt kit. Metric bolts tightening torques engineering toolbox. Bolt tightening table table 14 table 15 figure 21 1. Lubricated refers to fasteners in the as received condition, which is normally a light preservative oil coating on unplated fasteners and no oil coating on plated fasteners. Complete the form below, and well send you an email every now and again with all the latest news. Unit conversion to assist international measurement definitions.
A torque tension calculator is available on the norbar website. Fastener torque charts guide for prevailingtorque lock nut assembly torques cad and wax, grade b, c, and grade g flange nuts lock nut standards from ifi100 requirements torquetension requirements clamp loads for the grade b lock nuts equal 75% of the bolt proof loads specified for sae j429 grade 5, and astm a449 bolts. Tightening torque hex bolts the tightening torque values given in the above table serve only as a guide. Understanding the basics of tightening threaded fasteners. Ltd 36400 biltmore place, willoughby, plot no a ohio, 44094 thane belapur road, mahape, usa navi mumbai. A final circular pass will be made with the torque wrench set at 100% torque value 24 hours after the third. Norbar 15016 automotive 12 drive reversible ratchet torque. Turn angle option can be used to check if bolts have already been tightened in an assembly process allows tool integration into third party control systems maximum audit mode. The standard also separates manual and electronic tools into different sections and designations. The terms bolt, fastener, and threaded fastener are used interchangeably. Measurement of torque imagine someone tightening a bolt using a socket attached to a meter long bar. T the purpose of tightening screws is to fix one object to another object. Norbars electronic torque wrench, nortronic, can perform highprecision torque and torqueangle tightening and auditing of fastened bolts. Bolts are new,standard finish,uncoated and not lubricated other than the normal protective oil film.
To measure the applied torque a torque transducer coupled to an appropriate display instrument are required. A range of nose extensions for reaching difficult to access bolts and full range of torque transducers for highly accurate torque monitoring are available. There are three possible methods to tighten threaded fasteners, by torque which is rotation of the nut or bolt head, by direct tension to stretch the fastener, or by heat to expand the fastener. The basic torque distribution for a fastener is illustrated in figure 4. Recommended bolt torque table size recommended torque grade 2 grade 5 grade 8 188 ss bronze brass. The nuts, bolts, and washers used on the airplane are in.
Norbar torque tools ltd specialises in the manufacture and worldwide distribution of torque tools for torque tightening, measurement and calibration. Torque in pound foot or pound inch torque in newton meter nm lubed means cleaned, dry bolts, lubricated with standard medium viscosity machine oil. A torque multiplier is a tool used to provide a mechanical advantage in applying torque to turn bolts, nuts or other items design to be actuated by application of torque, such as the actuation of. All norbar torque wrenches are offered as standard with a quality ratchet. Norbar is devoted exclusively to the design, development and production of torque tightening and measuring equipment. How the norbar usm3 bolt meter works features of the norbar usm3 note. Torque wrench user guide, how to adjust a torque wrench. Norbar torque tools, wrenches, multipliers and calibration. All content is posted anonymously by employees working at norbar torque tools.
Engineering fundamentals of threaded fastener design and. In preparing this guide to torque values, the following basic assumptions have been made. Melbourne victoria, vic regional tasmania, nt northern territory. Torque is any force or system of forces that tends to cause rotation about an axis. As nut bolt becomes snug, slow operation to a smooth, steady pull. Add standard and customized parametric components like flange beams, lumbers, piping, stairs and more to your sketchup model with the engineering toolbox sketchup extension enabled for use with the amazing, fun and free sketchup make and sketchup pro. A torque wrench is a special tool used to tighten nuts and bolts to a certain specific torque so that they do not stretch, break or become loose.
After 35 years in operation in australia, norbar torque tools, takes great pride in providing superior customer service to our valued customers and commit each day to the continued supply of premium quality bolting tools that are faster, safer and more accurate than any of our competitors. We have offices in the uk, usa, australia, singapore. Engineering fundamentals of threaded fastener design and analysis. Pro torque tools cdi torque wrenches torque multiplier.
Lubricate all contact areas of the bolts and washers. Alternatively, use the torquetension calculator on the norbar website which enables fastener and friction conditions to be modified with ease. Establish the correct torque figure for the bolt from manufacturers instructions or by calculation. Norbar is the only torque equipment manufacturer capable of offering tool and instrument calibration services to the original factory standard on four. Torque is force around a point or axis a twisting force and is calculated by multiplying an applied force by the distance through which the force works. This section of the catalogue provides basic information about the methods of applying tension to a bolted connection. Norbar torque tools philip brodey highlights the top ten things to consider for optimum torque wrench performance and longevity. Proper torque wrench techniques construction equipment. Torque wrenches professional torque wrench norbar torque. Recommended maximum bolt loads and torque values unc threads. This video from norbar torque tools, the worlds torque specialists, takes you. There are many methods for measuring preload see table 12.
Operate torque wrench the same as a standard socket wrench to tighten nut bolt. Set the torque wrench to the 70% torque value and repeat step 2. Fill in the blanks on the job data sheet showing 30%, 70% and 100% torque values. Torque wrenches low series operating manual, high torque impact sockets. The torque wrench measures the torque as a proxy for the tension on a bolt, which could suffer from inaccuracy if the wrench isnt calibrated correctly.
For applications requiring relatively low torques that can be applied with a torque wrench this does not present a problem as the. The norbar usm3, ultrasonic bolt meter, defines the state of the art in the measurement of the actual clamp load produced by tightening a fastener. The norbar handtorque is the most comprehensive multiplier range available. This video from norbar torque tools, the worlds torque specialists, takes you through the best practice use of a norbar torque wrench.
Bolt torque calculator calculate required bolt torque. Year engine displacement liters cc engine idvin cylinder head bolts main bearing bolts rod brearing bolts. Tightening torques and the torque tension relationship all of the analysis and design work done in advance will have little meaning if the proper preload is not achieved. It is usually in the form of a socket wrench with special internal mechanisms a torque wrench is used where the tightness of screws and bolts is crucial. Iso metric hexagon bolts and screws products grades a and b. In addition to the normal adjustable torque wrenches, norbar offer production p type versions which can be preset and dedicated to a particular application. Tightening torques for metric bolts of yield strength sy metrique diameter mm 6 8 10 12 14 16 18 20 22 24 27 30 33 36 39 42 45 48 52 56 60 64 68 m6 m8 m10 m12 m14 m16 m18 m20 m22 m24 m27 m30 m33 m36 m39 m42 m45 m48 m52 m56 m60 m64 m68. Standard maintenance practice dictates that mechanics add this value to the specified torque. The bolt torque table below provides information such as tension, torque, tpi for the heavy structured bolts against its corresponding bolt sizes ranging from 12 to 1 12. Torque tension to identify precise levels of torque to be applied for individual applications. Make pro torque tools your goto for all torque products.
752 172 563 932 530 272 807 1334 796 735 1393 921 526 303 1089 110 1385 239 391 689 817 1423 958 769 813 289 465 1412