Lead Screw Technology | Product Overview
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Screw Thread Systems
Machinery's Handbook 27th Edition TABLE OF CONTENTS THREADS AND THREADING SCREW THREAD SYSTEMS METRIC SCREW THREADS 1725 Screw Thread Forms 1783 American Standard Metric Screw 1725 V-Thread, Sharp V-thread Threads M Profile 1725 US Standard Screw Thread 1783 Comparison with Inch Threads 1725 Unified Screw Thread Forms 1783 Interchangeability 1726 International Metric Thread 1783 Definitions 1727 Definitions of Screw Threads 1784 Basic M Profile 1784 M Crest and Root Form UNIFIED SCREW THREADS 1785 General Symbols 1732 American Standard for Unified 1785 M Profile Screw Thread Series Screw Threads 1785 Mechanical Fastener Coarse Pitch 1732 Revised Standard 1786 M Profile Data 1732 Advantages of Unified Threads 1787 Limits and Fits 1732 Thread Form 1793 Dimensional Effect of Coating 1733 Internal and External Screw 1793 Formulas for M Profile Thread Design Profile 1797 Tolerance Grade Comparisons 1733 Thread Series 1797 M Profile Limiting Dimension 1734 Inch Screw Thread 1798 Internal Metric Thread 1735 Diameter-Pitch Combination 1800 External Metric Thread 1736 Standard Series Combinations 1804 American Standard Metric Screw 1763 Coarse-Thread Series Threads MJ Profile 1764 Fine-Thread Series 1804 Diameter-Pitch Combinations 1764 Extra-Fine-Thread Series 1807 Trapezoidal Metric Thread 1765 Constant Pitch Series 1807 Comparison of ISO and DIN 1766 4-Thread Series Standards 1767 6-Thread Series 1813 Trapezoidal Metric Thread 1768 8-Thread Series 1814 ISO Miniature Screw Threads 1769 12-Thread Series 1814 British Standard ISO Metric Screw 1770 16-Thread Series Threads 1771 20-Thread Series 1814 Basic Profile Dimensions 1772 28-Thread Series 1815 Tolerance System 1773 Thread Classes 1815 Fundamental Deviations 1773 Coated 60-deg. -
Exploded View Slicer
Explodedviewslicer: 834–EPBK DEKOHolland-VerbasB.V. Simon Stevinweg 19 6827BSArnhem TheNetherlands April2010 . DEKOHolland Recommendedsparepartslist834EPBK Partno. Description Assembly 2301-5202 V-belt knifebox 2301-5209 V-belt powerstroke 2301-5210 V-belt powerstroke 2301-5211 V-belt powerstroke 2601-0036 slidingpotentiometer thicknessregulator 2601-1083 switchgreen bezel 2601-1084 switchred bezel 2601-1111 microswitch knifebox 2601-6568 carbonbrushes powerstroke 2901-0007 E-promstackerprogrammed bezel 3201-4123 knob meattable 3301-3810 spindlebearing sharpener 3301-3824 beltpulley transporter 3701-3381 hingepiece meattable 3801-3350 knobwithpin thicknessregulator 3801-3199 pulley transporter 3801-3200 centerplateknob knifebox 3801-3287 splitnut/handle meattable 4101-3492 touchpanelbezel 4101-3610 transformergroup230Volt powerstroke 4101-3620 CPUboard bezel 4101-3821 hardnessing powerstroke 4101-3851 powerstrokeboard bezel 4101-3622 interconnectionboard tray/solenoidhousing 4101-3632 DCmotor powerstroke 4101-3634 motor230V50Hzbase 4301-3404 sharpeningstonewithshaft sharpener 4301-3405 deburringstonewithshaft sharpener 4301-3418 conveyorbelt transporter 4301-3424 solenoid tray/solenoidhousing 4301-3427 fingerholder tray/solenoidhousing 4301-3659 pulley transporter 4301-3687 beltassy base 4401-3300 disc meattable 4601-3527 steppingmotor tray/solenoidhousing 4601-3710 supportingshaft meattable 4601-3504 sharpenerassy sharpener DEKOHolland Explodedview:Base Concerncode:4601-0114-02 -
HUCO Leadscrews Brochure
LEADSCREWS AND LINEAR RAILS 2 Leadscrews & Linear Rails Introduction Huco has chosen to offer Kerk Leadscrews because they are designed specifically for precision motion control applications. The screw thread form is unique to Kerk and has been created for maximum life, quiet operation and repeatable accuracy. Positional bi-directional repeatability is achieved within 0.0013 mm (0.0005î) and standard lead accuracy is better than 0.0006 mm/mm. Lead accuracies are available to 0.0001 mm/mm with individual screw mapping (laser interferometer verification) optional. A number of unique, patented, anti-backlash nut options are available to suit a variety of load conditions. Kerk nuts are characterised by low drag torque, low wear and high axial stiffness. Kerk ScrewRailsTM are a patented innovation in linear motion, combining both drive and support / guidance functions in a single, compact, coaxial component. The ScrewRail’s unique design eliminates the need for any external rail to screw alignment, giving savings in space as well as cost over typical two-rail systems. Where external rail support is required Kerk Linear Rails are designed to provide low cost, low friction and long life in a variety of motion control applications. Linear rails are available in burnished or TFE coated stainless steel. The Kerk Spline Shaft system has been designed for light load applications, again where low cost, low friction and long life are needed. These assemblies consist of light weight, aluminium splined shafts treated with Kerkís proprietary low friction TFE coating, mated with graphite and PTFE filled thermoplastic bushings. The bushings are supplied with integral brass collars to enable various mounting options without distorting the nut. -
QP158 Thread Inspection Procedure Owner: Quality Manager Change History: See DCN for Details Rev Date DCN Number Current Revision E 2018‐0201 DCN15947
Quality Procedure QP158 Thread Inspection Procedure Owner: Quality Manager Change History: See DCN for Details Rev Date DCN Number Current Revision E 2018‐0201 DCN15947 1. PURPOSE 1.1. This procedure defines the control method for thread inspection to ensure that product meets design requirements. 2. SCOPE 2.1. This procedure applies to manufactured and procured components and tooling with internal or external threads. 3. DEFINITIONS 3.1. Thread ‐ A helical structure used to convert between rotational and linear movement or force. A screw thread is a ridge wrapped as a helix around either a cylinder (a straight thread) or a cone (a tapered thread). Threads can be used as a simple machine or as a fastener. Threads can be left or right‐handed and internal or external. Thread form is the cross‐sectional form of a thread. Inch threads are typically documented by stating the diameter of the thread followed by the threads per inch, such as 3/8‐18 which is a 3/8 inch diameter thread with 18 threads per inch, or by thread angle, which is the angle between the threads. This angle determines the style or type of thread (i.e. NPT, pipe thread). Metric threads are defined by their pitch. Example: M16 x 1.25 x 30 has a pitch of 1.25 and a 16mm major diameter and a length of 30mm. 3.2. Lead Angle ‐ On the straight thread, it is the angle made by the helix of the thread at the pitch line with a plane perpendicular to the axis. Lead angle is measured in an axial plane. -
Acme Thread Pitch Chart Pdf
Acme thread pitch chart pdf Continue About Us Contact Us Disclaimer ? Privacy PolicyCopyright © 2013-2020 About Us Contact Us Disclaimer ? Privacy PolicyCopyright © 2013-2020 Screw thread profiles with trapezoidal contours This article includes a list of general references, but remains largely unverified because it lacks enough corresponding online appointments. Please help to improve this article by introducing more accurate quotes. (April 2015) (Learn how and when to delete this template message) Metric trapezoidal thread, TR-40×7. Male Acme thread trapezoidal thread shapes are screw thread profiles with trapezoidal contours. They are the most common forms used for lead screws (power screws). They offer high strength and ease of manufacture. They are usually located where large loads are required, such as in a visor or the lead screw of a lathe. [1] Standardized variations include multi-start threads, left threads, and self-centering wires (which are less likely to join under lateral forces). The original shape of the trapezoidal thread, and probably the most commonly found worldwide, with a thread angle of 29o, is the acme thread shape (/-kmi/ AK-me). The Acme thread was developed in 1894 as a very suitable profile for power screws that has several advantages over the square thread,[note 1] which had been the way of choice until then. It is easier to cut with single-point threading or die than the square thread is (because the shape of the thread requires a tool bit or die-tooth geometry that is not suitable for cutting). It is used better than a square thread (because wear can be compensated) and is stronger than a square thread of comparable size. -
1950 Supplement to Screw-Thread Standards for Federal Services 1944
U. S. DEPARTMENT OF COMMERCE NATIONAL BUREAU OF STANDARDS 1950 SUPPLEMENT TO SCREW-THREAD STANDARDS FOR FEDERAL SERVICES 1944 1950 Supplement to Handbook H28 (1944) National Bureau of Standards DEC 1 6 1952 78441 QC1 Related Publications .... U51 cop, 2. Screw-Thread Standards for Federal Services, 1944 Screw-thread standards for the Federal Government have been estab¬ lished by the Interdepartmental Screw-Thread Committee of the Army, Navy, Air Force, and Commerce Departments in order to insure the interchangeability of threaded parts. Bolts, nuts, gages, dies, taps, wrenches, and all other items associated with the manufacture of threaded parts have been listed, and definitions of sizes, tolerances, and shapes are fully illustrated by means of drawings and tables. Order NBS Handbook 28 (1944), Screw-Thread Standards for Federal Services, 1944, 274 double-column pages, from the Superintendent of Documents, U. S. Government Printing Office, Washington 25, D. C. Price ?1.00. Unified Screw-Thread Standards An accord for unification of American, British, and Canadian standard systems of screw threads was signed at the National Bureau of Stand¬ ards on November 18, 1948. This circular gives the proceedings of the meeting, together with detailed illustrations, tables, and numerical data setting forth standards of thread form. In the past, international trade in mechanical equipment of all kinds has been seriously handicapped by the lack of interchangeability of screw-thread parts. The adoption of these unified screw-thread stand¬ ards will remove an important barrier to the exchange of manufactured goods throughout the world. Order NBS Circular 479, Unified Screw-Thread Standards, 27 large pages, illustrated, from the Superintendent of Documents, U. -
History of Threaded Pipe Connections
Jacques Jumeau English version History of technologies linked to heating. Chapter 1 History of threaded pipe connections Copyright: Jacques Jumeau 1st edition 2010/04/23 Copy is allowed, provided you cite the origin: Ultimheat Museum 1 Update 2019/02/21 History of threaded pipe connections At the beginning of the 19th century, the development of pumps and steam engines posed the problem of a simple, solid, waterproof and pressure-resistant connection of metal pipes. Each manufacturer designed their own system and very soon appeared problems of compatibility and maintenance. In 1841 the English engineer and industrialist, Joseph Whitworth, of Manchester, presented to the Institute of Civil Engineers, a memoir to demonstrate the advantage of applying, for railways, navigation and manufactures, a uniform system screw threads, all over England. He gave a table summarizing the main dimensions which were quickly adopted by several companies and builders. Joseph Whitworth focused on determining the pitch, depth, and shape of screw threads to match their diameter. He endeavored to establish such proportions that, while retaining the necessary power of the nets, they present, at the same time, a great solidity, and may serve both for iron and cast iron. It was based on a 55-degree thread angle with rounded roots and crests of threads to save manufacturing tools. This form of threading, was later declined into a cylindrical female part and a conical male part with a taper angle of 1/16 (6.25%) and was then chosen as the most efficient, because it allowed to perform a Pipe sealing on a step. -
Superbolt Catalog 2005 Online.Indd
T H E S O L U T I O N T O B O L T I N G P R O B L E M S ©2006 Superbolt, Inc. All Rights Reserved. ® CAT. DATE 9.05 DATE CAT. INNOVATION. QUALITY. EXPERIENCE. Bolting Technology Takes A Step Forward Tighten any size stud with a hand torque wrench! Supernut® Multi-Jackbolt Stud Tensioners utilize 2,500 Ton Structural Foam Injection Molding Press. Installation was accomplished in 2 hours using hand tools! jackbolts threaded through the main body of the nut to create large clamping forces. High pressure steam turbine Jackbolts are inlet flange. tightened with a hand torque wrench. High Compressive strength Jackbolts have a small friction diameter creating Final torque values on heat Superbolt Tensioners on a a high thrust exchanger verified with hand 1,000 Ton Diecast Machine. force with held torque wrench. relatively little torque. The thrust force of many jackbolts and the opposite reaction force of the main bolt head create a strong clamping force on the flange. 16-1/2” split nut on forging press columns. The thrust force from the A hardened jackbolts creates washer is an equally strong used to reaction force transfer in the main bolt force while head. protecting the flange face and 2 casing. This flexible disc coupling took 2 men 2-1/2 hours to install, saving Superbolt® products are protected by trademark rights and one or more U.S. this company 19 man hours! patents: RE 33490; 4,846,614; 5,083,889; 6,199,453; 6,381,827; 6,112,396; 6,263,764; other patents pending and corresponding foreign patents. -
Why Superbolt® Tensioners?
® WWW.SUPERBOLT.COM 07 07 Why Superbolt® Tensioners? An Old Problem: Large diameter bolting presents requires some form of high several problems. The strength energy equipment. of a screw fastener increases with the square of its diameter, Slugging wrenches and crane however, the torque required wrenches are dangerous and increases with the third power. thermal tightening can be time consuming. Hydraulic wrenching Because of this, bolts with a can be expensive, time consuming, diameter greater than 1 inch inaccurate and can lead to thread cannot be effectively torqued to galling. Hydraulic tensioning also capacity with hand tools. shares some of these problems and Achieving proper preload levels adds problems with field retrofit. Hydraulic Hydraulic Thermal Crane Sledgehammer Tensioning Wrench Tightening Wrench The Simple Low torque for Solution: any size Supernut® 100,000 Torque Curve for Superbolt® Tensioners are designed 45,000 psi Bolt Stress as direct replacements for standard Torque Required bolting. They can be threaded (lb•ft) Torque 50,000 For Standard Nut onto a new or existing bolt, stud, Torque Required threaded rod or shaft. With our For Superbolt® products, bolting is fast, safe, Torquenut easy and accurate. 1 2 3 4 5 6 Thread Diameter (In.) Benefits: Only Hand Tools Required Safe To Use Flexing - Adds Elasticity Standard torque wrenches/small Eliminate common injuries associated Superbolt® Tensioners add elasticity air tools can generate higher bolt with other bolting methods. Our products to any bolted joint (see page 22). tensions than any other bolting can be used in awkward locations The joint becomes more resistant to method available. -
Topic 6 Power Transmission Elements II
FUNdaMENTALS of Design Topic 6 Power Transmission Elements II © 2008 Alexander Slocum 6-0 1/1/2008 Power Transmission Elements II were scaled to create accurate gears for industry and this also helped power the industrial revolution. Screws & gears are transmission elements that warrant a special place in power transmission systems We may never know who the great minds were because of the huge range of power levels at which they who actually had the moment of brilliance to invent are applied and the very high transmission ratios they screws and gears, but we salute these great minds; for can achieve. without screws and gears, which still serve us today, society would grind to a halt, and industry would be The first screws were used perhaps by threaded! Archimedes in 200 BC as pumps to lift water from a river to a field. It is not known when the first power By considering FUNdaMENTAL principles, you screw for lifting a solid load was invented, but it was will better be able to separate marketing hype from likely over a thousand years ago. Like many technolo- engineering reality. Remember Maudslay’s Maxims, gies, the military was a powerful catalyst for develop- and apply them in the context of: ment. One could imagine designers wondering how they could convert rotary motion into linear motion, or • Kinematics: motion, accuracy, space how they could amplify force or torque. With gunpow- • Dynamics: forces, speeds, life der came the need for the manufacture of better gun bar- • Economics: design, build, maintain rels which propelled the fledgling machine tool industry. -
The Solution To
THE SOLUTION TO ME, ~ KVBI c An Old Problem: Large diameter bolting presents requires some form of high several problems. The strength energy equipment. of a screw fastener increases with the square of its diameter, Slugging wrenches and crane however, the torque required wrenches are dangerous and increases with the third power. thermal tightening can be time consuming. Hydraulic wrenching Because of this, bolts with a can be expensive, time consuming, diameter greater than 1 inch inaccurate and can lead to thread cannot be effectively torqued to galling. Hydraulic tensioning also capacity with hand tools. shares some of these problems and Achieving proper preload levels adds problems with field retrofit. 0 (~ QI"' ~7_ Hydraulic Hydraulic Thermal Crane Sledgehammer Tensioning Wrench Tightening Wrench The Simple Low torque for Solution: any size Supernut' TorqueCurvefor / Superbol Tensioners are designed . 45,000 psi Boll Stress I as direct replacements for standard / bolting. They can be threaded j Torque Required 50,0 For Standard onto a new or existing bolt, stud, ,/'ToIrlue Required threaded rod or shaft. With our For Superbolt products, bolting is fast, safe, Torque easy and accurate. 1 2 3 4 5 6 Thread Diameter (In.) Benefits: Only Hand Tools Required Safe To Use Flexing -Adds Elasticity Standard torque wrenches/small Eliminate common injuries associated Superbolt® Tensioners add elasticity air tools can generate higher bolt with other bolting methods. Our products to any bolted joint (see page 22). tensions than any other bolting can be used in awkward locations The joint becomes more resistant to method available. such as overhead bolts, on top of large thermal or dynamic cycles. -
Types of Thread
TYPES OF THREAD 08-2015 | 1 TYPE OF THREAD WWW.TEESING.COM ABOUT TEESING INDEX WE ENGINEER FROM SOURCE TO PROCESS TECHNICAL SUPPLIER SINCE 1952 Since 1952 Teesing is `The right connection` as the international supplier of fittings, valves, tubing, systems and assemblies for industrial applications in four BASICS OF THREAD sectors: pneumatics, hydraulics, instrumentation and transport of media. With offices in the Netherlands (Rijswijk), U.S.A. (New Jersey), China (Beijing) and Zhubei City (Taiwan) we are globally active in several specialized niche markets, such as semiconductor, railway, alternative fuels, pharmaceutical and (Petro) chemical industries. We supply a complete package of products and services you require for your 1. BASICS OF THREAD connection applications. Through our specialized knowledge of our products and 1.1 Gender 4 markets we are capable in responding quickly to all your questions regarding the 1.2 Handedness 4 transport of gases and liquids to your point of use connection. Thanks to our 1.3 Design 4 engineering department we are also capable of delivering customized products 1.4 Pitch / TPI 5 and assemblies that are developed to meet the specifications of your critical 1.5 Diameter 5 process demands. 1.6 Angle 5 1.7 Crest / root 5 2. MOST COMMON THREADS OUR BUSINESS UNITS 2.1 M - ISO thread (metric) 7 2.2 NPT - Pipe thread 8 2.3 G/R/Rp - Whitworth thread (BSPP/BSPT) 9 INDUSTRIAL APPLICATIONS SUBMICRON TECHNOLOGIES ALTERNATIVE ENERGY 2.4 UNC/UNF - Unified National thread 10 International supplier of International supplier of HP/ International supplier of com- 2.5 Extra: Comparison sheet (M – BSPP – BSPT – NPT – UNC - UNF) 11-15 fittings, valves, tubing, UHP components and assem- ponents, systems and assem- blies from source to process.