DOCSLIB.ORG

The Gear-Hobbing Machines LC

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
The Gear-Hobbing Machines LC Machine Tools and Automation Systems by Liebherr The Gear-Hobbing Machines With around sixty years of experience in the field, Liebherr is one of the world‘s leading manufacturers of CNC gear cutting machines, gear cutting tools and automation systems. These innovative products are the result of advanced ideas, highly qualified employees and the latest manufacturing systems at each of their locations. They are characterised LC 200 – 500 by economy, ease of use, quality and reliability in combination with a high degree of flexibility. Liebherr employs approximately 1,200 people in the field of machine tools and automation technology and has production facilities in Kempten and Ettlingen (Germany), Collegno (Italy), Saline (Michigan, USA) and Bangalore (India). They are supported by expert and reliable marketing and service specialists at a large number of locations worldwide. System Solutions for High-Quality Gear Cutting Machines Gear Cutting Tools The Liebherr range in the field of gear cutting machines Liebherr manufactures high-quality precision tools for the includes gear hobbing machines, gear shaping machines soft and hard machining of gears and all Liebherr gear and hobbing and profile grinding machines, all noted for cutting machines are fitted with these tools. The range also their high degree of stability and availability. Liebherr can includes Lorenz stock tools and products customised for supply all technologies required for the manufacture of specific applications. high-quality gears and is continuously developing these technologies. Particular importance is attached to the Automation Systems for a Wide energy efficiency of the machines. Range of Applications Gear cutting machines from Liebherr are supplied to Liebherr has a wide range of products for linear portals, renowned manufacturers of gears and gearboxes as well pallet-handling systems, conveyor systems and robot as large-scale slewing rings worldwide. They are in demand integration for projects in all areas of production and can primarily from the automotive and construction machin- provide above-average availability of systems. ery industries and also increasingly from the windpower industry for the manufacture of gears for wind turbines. www.liebherr.com Liebherr-Verzahntechnik GmbH Liebherr-Utensili S.r.l. Liebherr-Gear Technology Inc. Liebherr-Machine Tools India Pvt. Ltd Werk Ettlingen Gear cutting tools Machine tools Machine tools Gear cutting tools Via Nazioni Unite 18 Liebherr Automation Systems Co. 353/354, 4th Main, 9th Cross, 4th Phase Hertzstraße 9-15 10093 Collegno TO, Italy Automation systems Peenya Industrial Area 76275 Ettlingen, Germany +39 (0)114 248711 1465 Woodland Drive Bangalore - 560 058, India +49 (0)7243 708-0 Fax +39 (0)114 559964 Saline, MI 48176-1259, USA +91 (0)80 41 273033 Fax +49 (0)7243 708-685 [email protected] +1 7344 297225 Fax +91 (0)80 41 272625 [email protected] Fax +1 7344 292294 [email protected] [email protected] Subject to change without prior notice. Liebherr-Verzahntechnik GmbH Machine tools, automation systems Kaufbeurer Straße 141, 87437 Kempten, Germany +49 (0)831 786-0, Fax +49 (0)831 786-1279 www.liebherr.com, e-mail: [email protected] The Machine Concept In gear manufacturing, the technology of high-speed dry To take advantage of the substantially lower machining hobbing has substantially reduced cutting times and ma- times of high-speed hobbing, fast load and unload cy- chining costs while increasing workpiece quality and en- cles are required. With the newly developed automation vironmental protection. Originally introduced by Liebherr, system, the part change time is less than four seconds. this process has met with tremendous success. Modular workpiece storage units expand the machine pe- The new demands of this modern technology include riphery. higher hob and table speeds, reliable removal of the hot In the development of the overall machine concept, the chips, and machine-wide management of the consider- “lean” philosophy was a central issue. The new gener- able process heat. The proven machine concept also of- ation Liebherr machines are compact, fast, reliable and fers a number of significant new developments: the com- competively priced. The future belongs to the new tech- pletely symmetrical design of the machine’s structur- nology of high-speed dry hobbing. We are making a de- al components and the closed oil-circulation loop in the cisive contribution to this economically and ecologically machine bed assure an extremely uniform temperature important development. distribution and therefore thermal stability – important for consistently high workpiece quality. Z1 A1 Z4 B1 C2 V1 C3 X1 2 The Machine Bed The rigidity of the machine structure was optimized using FEA simulation. Steep side walls and two integrated chip augers offer ef- ficient and reliable chip removal. This is especially impor- tant for dry cutting. The Hob Head A maintenance free direct drive AC motor is used for the hob spindle. Drive power up to 27 kW and speeds up to 3000 rpm offer large reserve capacity for future tool de- velopments. For very high torque requirements the hob head is equipped with a reduction gear drive. The tool interface is offered either with a hollow shaft ta- per (HSK), a collet or a steep taper (ISO). The Machine Table with direct or gear drive A backlash free table drive is essential for high precision gear cutting. For conventional cutting technology, a prov- en backlash free gear driven table is available. For high performance cutting, a high dynamic direct drive is avail- able to meet all requirements for spindle speed and ac- curacy. Integrated roll deburring and chamfering Roll deburring and chamfering of the gear teeth, with re- moval of secondary burr, is suitable for bore and shaft parts. The deburring and chamfering operation is parallel to the main cutting time. 3 The Controls – Intelligence from Experience In standard, the machines are delivered with Siemens- control in connection with Siemens-drives. The essential features of these advanced controls are: • PC based control technology • digital drive technology • integrated PLC • advanced field bus systems (profi bus) • TFT flat screen • optional network integration • dialog input tailored to gear machining • Teleservice • Diagnostic tools With these customer-oriented options, we satisfy the de- mands of the international markets. Versatile Workpiece Handling The tailstock column enables manual and automatic load- ing / unloading of bore- and shaft-type parts for dry and wet machining. The workpieces may optionally be clamped table-side with high clamping force or – for shorter cycle times – with an NC tailstock arm. Liebherr offers automatic load- ing/unloading and storage systems for a wide range of workpieces. Furthermore, the machine can be integrated into cell or line concepts. The machine offers quick change-over possibilities for flexible use via a quick change system for workpiece grip- per and fixtures. Automation - for any Requirement The Liebherr automation systems are based on long ex- perience, i.e. they are proven and effective solutions. For stand-alone machines, machining cells or production lines Liebherr is the competent partner. High Uptime - Friendly Maintenance The high performance of the machine requires low down- times and an easy maintainability. This is a prime asset of Liebherr. Therefore all control elements are integrated in the machine housing with ideal accessibility. 4 Technical Data LC 200 LC 300 LC 380 LC 500 Max. workpiece diameter mm 200 300 380 500 mm 7 (12) 7 (12) 7 (12) 7 (12) Max. axial travel mm 600 600 600 600 Table diameter mm 180 250 320 320 Table speed rpm 100/200/400 100/200/400 100/200/400 100/200/400 Center Distance between hob and table min. mm 15 15 15 15 max. mm 400 400 400 400 Hob-head swivel Shift 200 mm +/- 45 +/- 45 +/- 45 +/- 45 degrees Hob-head swivel Shift 300 mm +/- 35 +/- 35 +/- 35 +/- 35 Max. shift/tangential travel mm 200/300 200/300 200/300 200/300 Max. hob diameter mm 160 (220°) 160 (220°) 160 (220°) 160 (220°) Max. hob length mm 230/330 230/330 230/330 230/330 Axial rapid travel mm/min. 10,000 10,000 10,000 10,000 Radial rapid travel mm/min. 7,50 0 7,50 0 7,50 0 7,50 0 Tangential rapid travel mm/min. 3,000 3,000 3,000 3,000 Hob-spindle speed ranges rpm 500 500 500 500 rpm 750 750 750 750 rpm 1200/1500/3000 1200/1500/3000 1200/1500/3000 1200/1500/3000 Cutter-spindle drive capacity kW 14/27 14/27 14/27 14/27 Total weight of machine with tailstock column ca. kg 16,000 16,000 16,000 16,000 Total connected load ca. kVA 35-50 35-50 35-50 35-50 * FK 2.3 5655 3400 1850 970 H/S 1560 C CH 915 3810 E 600 625 2200 5 Machine Tools and Automation Systems by Liebherr With around sixty years of experience in the field, Liebherr is one of the world‘s leading manufacturers of CNC gear cutting machines, gear cutting tools and automation systems. These innovative products are the result of advanced ideas, highly qualified employees and the latest manufacturing systems at each of their locations. They are characterised by economy, ease of use, quality and reliability in combination with a high degree of flexibility. Liebherr employs approximately 1,200 people in the field of machine tools and automation technology and has production facilities in Kempten and Ettlingen (Germany), Collegno (Italy), Saline (Michigan, USA) and Bangalore (India). They are supported by expert and reliable marketing and service specialists at a large number of locations worldwide. System Solutions for High-Quality Gear Cutting Machines Gear Cutting Tools The Liebherr range in the field of gear cutting machines Liebherr manufactures high-quality precision tools for the includes gear hobbing machines, gear shaping machines soft and hard machining of gears and all Liebherr gear and hobbing and profile grinding machines, all noted for cutting machines are fitted with these tools.
Load more

Recommended publications
  • Gear Cutting and Grinding Machines and Precision Cutting Tools Developed for Gear Manufacturing for Automobile Transmissions
    Gear Cutting and Grinding Machines and Precision Cutting Tools Developed for Gear Manufacturing for Automobile Transmissions MASAKAZU NABEKURA*1 MICHIAKI HASHITANI*1 YUKIHISA NISHIMURA*1 MASAKATSU FUJITA*1 YOSHIKOTO YANASE*1 MASANOBU MISAKI*1 It is a never-ending theme for motorcycle and automobile manufacturers, for whom the Machine Tool Division of Mitsubishi Heavy Industries, Ltd. (MHI) manufactures and delivers gear cutting machines, gear grinding machines and precision cutting tools, to strive for high precision, low cost transmission gears. This paper reports the recent trends in the automobile industry while describing how MHI has been dealing with their needs as a manufacturer of the machines and cutting tools for gear production. process before heat treatment. A gear shaping machine, 1. Gear production process however, processes workpieces such as stepped gears and Figure 1 shows a cut-away example of an automobile internal gears that a gear hobbing machine is unable to transmission. Figure 2 is a schematic of the conven- process. Since they employ a generating process by a tional, general production processes for transmission specific number of cutting edges, several tens of microns gears. The diagram does not show processes such as of tool marks remain on the gear flanks, which in turn machining keyways and oil holes and press-fitting bushes causes vibration and noise. To cope with this issue, a that are not directly relevant to gear processing. Nor- gear shaving process improves the gear flank roughness mally, a gear hobbing machine is responsible for the and finishes the gear tooth profile to a precision of mi- crons while anticipating how the heat treatment will strain the tooth profile and tooth trace.
    [Show full text]
  • Intelligent Process Optimization „Innovation Is Our Future.“ Sascha Tschiggfrei, CEO the Future Has Begun
    Intelligent Process Optimization „Innovation is our future.“ Sascha Tschiggfrei, CEO The Future has begun As a global market leader, we manufacture technologically advanced high precision tool holders for turning centers and swiss type lathes that are known for high performance and long life-time. Using our new “smart” technology, our customers will be able to intelligently optimize and monitor their processes in the future. Intelligent Process State-of-the-art technology for maximum productivity. With this claim, WTO develops Optimization and produces superior precision tool holders in terms of technology and quality. Used intelligently, processes are optimized and production becomes more productive. WTO Driven Precision Tool Holders equipped with innovative „smart“ technology enable intelligent online process monitoring. “Consistent development - always one step ahead.” Karlheinz Jansen, CTO High Tech – Made in Germany From the technical design to the finished product we make no compromises when it comes to manufacturing our high precision tool holders. Permanent investment in state-of-the-art production technologies, high quality standards and a large manufacturing depth. Our products are in use worldwide, wherever precision parts are manufactured on turning centers with high productivity. „Our employees don‘t work for WTO. They work for the success of our customers.“ Daniel Sierra, Sales Director WTO Your Success is our Business Motivated employees are the basis for 100 % consistent customer focus. WTO offers its employees a state-of-the-art working environ- ment to work independently and ensures highly motivated employees in a family-owned technology company. To a large extent, WTO relies on its own highly qualified employees in order to achieve high quality standards.
    [Show full text]
  • Gear Cutting Solutions
    Gear cuttingsolutions 2 E2F Z TRINITY ORIGIN SWISS MADE SWISS 8100 DUPLEX REVOLUTION 8700 Gear cutting solutions Type Name of tool Standard modules* Tool Tool Machined part Page Tooth by tooth m 0.03 - 1.00 5 gear cutter Z² m 0.015 - 1.000 6 Hobs for epicyclic & involute teeth ORIGIN m 0.015 - 0.800 7 m 0.015 - 1.000 8 Two-way hob cutter m 0.015 - 0.800 9 ORIGIN DUPLEX *Depends on the gearing norm Other modules upon request swiss made Gear cutting solutions Type Name of tool Standard modules* Tool Tool Machined part Page Hobs for asymmetrical 10 gears and special by profi le profi les REVOLUTION Hobs for frontal F 2 m 0.05 - 0.50 11 gear cutting E Hobs for conical m 0.05 - 0.30 12 gears TRINITY Hob cutters for involute gears ISO53 / DIN867 m 0.05 - 1.00 13 DIN quality AAAA 8100 Skiving cutter for m 0.05 - 1.00 internal gear teeth 14 8700 *Depends on the gearing norm Other modules upon request swiss made DUPLEX ORIGIN Hobs for epicyclic New & involute teeth Hobbing with two hob cutters is known to produce burr-free hobbing. It is a functional process, but requires a sometimes tedious start-up. It is necessary to make an adjustment for each hob, and the stacking of the arbor, tools and spacers results in a bad roundness and warping. Louis Bélet SA has found a simple solution that can be used by everyone to solve these problems: ORIGIN DUPLEX hobs. ORIGIN DUPLEX on a shank Circular ORIGIN DUPLEX Made of one-piece solid carbide, these cutters have two cutting areas, one on the right and one on the left.
    [Show full text]
  • Industrial Productivity Training Manual
    INDUSTRIAL PRODUCTIVITY TRAINING MANUAL Version 2.0 Written by: Dr. Michael R. Muller - Director, Don Kasten ©2006 Rutgers, the State University of New Jersey Table of Contents INTRODUCTION..............................................................................2 PRODUCTIVITY TOOLBOX ..............................................................5 Toolbox Introduction.....................................................................6 Productivity Metrics......................................................................9 Cost of Labor..............................................................................10 Space Optimization .......................................................................11 Productivity Questions...................................................................14 CONCEPTS FOR PRODUCTIVITY ENHANCEMENT, PART I INCREASING PIECES/PERSON/HOUR .............................................19 QUICK CHANGES......................................................................20 AR No. 1 Decrease Die Change-Out & Start-Up Times...................26 AR No. 2 Use Fixtures to Reduce Lathe Set-up Times....................32 AR No. 3 Install a Rotating Nozzle Carousel to Reduce Set-Up Times.34 AR No. 4 Employ Modular Jigs to Reduce Process Set-up Times.......36 BOTTLENECK MITIGATION.........................................................39 AR No. 5 Add Machine Operators to Reduce Production Bottleneck....41 AR No. 6 Install Refrigeration System to Cool Product...................45 AR No. 7 Replace Old Lathe
    [Show full text]
  • Ring Gear and Pinion Tooth Pattern Interpretation
    RING GEAR AND PINION TOOTH PATTERN INTERPRETATION The final pinion position will be verified by using the GEAR CONTACT PATTERN METHOD described as follows: The TOE of the gear is the portion of the tooth surface at the end towards the center. The HEEL of the gear tooth is the portion of the tooth surface at the outer-end. The TOP LAND of a gear tooth is the surface of the top of the tooth. Every gear has a characteristic pattern. RING GEAR TOOTH PROFILE There are two types of gears which are determined by the machining method. One is manufactured by FACE HOBBING, while the other one is manufactured by FACE MILLING. You must first determine the type of gear that you have in order to know which gear pattern chart to use as described in this bulletin. To do this, notice the depth of the ring gear tooth - dimension "A" and "B". If the gear was manufactured using the FACE HOBBING method, both "A" and "B" will be of equal depth. If the gear was manufactured using the FACE MILLING method, "A" will be larger than "B". Once the type of ring gear machining method has been identified, refer to the proper gear pattern chart. FACE HOBBING FACE MILLING NOTE: WHEN MAKING CHANGES, NOTE THAT TWO VARIABLES ARE INVOLVED. EXAMPLE: IF YOU HAVE THE BACKLASH SET CORRECTLY TO THE SPECIFICATION AND YOU CHANGE THE PINION POSITION SHIM, YOU MAY HAVE TO READJUST THE BACKLASH TO THE CORRECT SPECIFICATION BEFORE CHECKING THE PATTERN. REFER TO PATTERN INTERPRETATION. BULLETIN 5717-A 5/02 1 of 3 Spicer Technology, Inc.
    [Show full text]
  • Basic Gear Systems
    Basic Gear Systems A number of gears connected together is called a “Gear Train”. The gear train is another mechanism for transmitting rotary motion and torque. Unlike a belt and pulley, or chain and sprocket, no linking device (belt or chain) is required. Gears have teeth which interlock (or mesh) directly with one another. Advantages The main advantages of gear train transmission systems are that because the teeth on any gear intermesh with the next gear in the train, the gears can't slip. (An exact ratio is maintained.) Large forces can be transmitted. The number of turns a gear makes can be easily controlled. High ratios between the input and the output are easily possible. Disadvantages The main disadvantage of a gear system is it usually needs a lubrication system to reduce wear to the teeth. Oil or grease is used to reduce friction and heat caused by the teeth rubbing together. Gear systems to increase and decrease rotational velocity Gears are used to increase or decrease the speed or power of rotary motion. The measure of how much the speed or power is changed by a gear train is called the gear ratio (velocity ratio). This is equal to the number of teeth on the driver gear divided by the number of teeth on the driven gear. To decrease the speed of the output the driver gear is smaller than the driven gear. (This will reduce the speed but increase the “torque”.) This diagram shows a small gear (A) driving a larger gear (B). Because there are more teeth on the driven gear there is a reduction in output speed.
    [Show full text]
  • Auto-Meshing Rack and Pinion Gear
    Technical Disclosure Commons Defensive Publications Series April 2020 AUTO-MESHING RACK AND PINION GEAR HP INC Follow this and additional works at: https://www.tdcommons.org/dpubs_series Recommended Citation INC, HP, "AUTO-MESHING RACK AND PINION GEAR", Technical Disclosure Commons, (April 10, 2020) https://www.tdcommons.org/dpubs_series/3120 This work is licensed under a Creative Commons Attribution 4.0 License. This Article is brought to you for free and open access by Technical Disclosure Commons. It has been accepted for inclusion in Defensive Publications Series by an authorized administrator of Technical Disclosure Commons. INC: AUTO-MESHING RACK AND PINION GEAR Auto‐meshing rack and pinion gear In a mechanical system with a rack and pinion, typically the rack and pinion are always engaged with each other but, in some instances, it is necessary to have the pinion gear disengage and engage with the rack. When this happens, the rack and gear need to mesh properly each time that they engage. If the gears do not properly mesh, then the system can lockup, gears can break, or other similar problems occur. One example of this is in a large format printer with a user replaceable printhead cleaner. A rack can be permanently placed in the printer (Figure 1), and then the printhead cleaner contain moving parts driven by the rack. The moving parts could be caps, spitrollers, webwipes, etc. An example of gears locking is shown in Figure 2. Figure 1 ‐ Printer printhead cleaner station with rack Pinion gear Rack gear Figure 2 ‐ Printhead cleaner with pinion gear locking up with rack Published by Technical Disclosure Commons, 2020 2 Defensive Publications Series, Art.
    [Show full text]
  • Gear Rolling for Production of High Gears Alireza Khodaee
    Gear Rolling for Production of High Gears Alireza Khodaee Gear Rolling for Production of High Gears Alireza Khodaee Licentiate Thesis, 2015 KTH Royal Institute of Technology Industrial Engineering and Management Department of Production Engineering SE-100 44 Stockholm, Sweden TRITA-IIP-15-06 ISSN: 1650-1888 ISBN: 978-91-7595-678-7 Abstract Gears are used to transmit mechanical work from one point to another. They are widely used in different mechanisms and they are the most important components of a transmission system. Thus, it is important that they are manufactured with high precision to deliver the work with highest possible efficiency. The dominant gear production method is metal cutting, like hobbing. The gear manufacturing industry aims to replace their traditional production lines with greener processes and thereby urge engineers to think about using metal forming methods instead of the traditional metal cutting solutions when possible. Gear rolling is an interesting metal forming method that can be an alternative method to fabricate gear wheels. Research on gear rolling firstly came into interest around 2000. Very few papers are published that covers the development of the method and its limitations and advantages. Almost all of these publications considered rolling of gear wheels with small modules. The focus of this study will be on application of gear rolling for gear wheels with large module (over 3 mm) where the amount of deformation is much larger than found in previous studies. In this thesis the Finite Element Method has been used to simulate and predict the results of rolling of high gears. In addition to that experiments were performed to validate the numerical results and develop the modelling technique for further investigations.
    [Show full text]
  • Worm Gear Screw Jacks Reliable and Versatile High Performance Screw Jacks
    Worm Gear Screw Jacks Reliable and versatile high performance screw jacks www.thomsonlinear.com Thomson – the Choice for Optimized Motion Solutions Often the ideal design solution is not about finding the fastest, sturdiest, most accurate or even the least expensive option. Rather, the ideal solution is the optimal balance of performance, life and cost. The Best Positioned Supplier of Mechanical Motion Technology Thomson has several advantages that make us the supplier of choice for motion control technology. • Thomson owns the broadest standard product offering of mechanical motion technologies in the industry. • Modified versions of standard product or white sheet design solutions are routine for us. • Choose Thomson and gain access to over 70 years of global application experience in industries including packaging, factory automation, material handling, medical, clean energy, printing, automotive, machine tool, aerospace and defense. A Name You Can Trust A wealth of product and application information as well as 3D models, software tools, our distributor locator and global contact information is available at www.thomsonlinear.com. For assistance in Europe, contact us at +44 1271 334 500 or e-mail us at [email protected]. Talk to us early in the design process to see how Thomson can help identify the optimal balance of performance, life and cost for your next application. And, call us or any of our 2000+ distribution partners around the world for fast delivery of replacement parts. Local Support Around the Globe Application
    [Show full text]
  • Gear Cutting Tools Rua André De Leão 155 Bloco a Mexiko/Mexico [email protected] CEP: 04672-030 LMT Boehlerit S.A
    Belgien/Belgium Indien/India Türkei/Turkey SA LMT Fette NV LMT Fette India Pvt. Ltd. Böhler Sert Maden Takim Sanayi Belin Yvon S.A. Industrieweg 15 B2 29, II Main Road ve Ticaret A.S. F-01590 Lavancia, Frankreich 1850 Grimbergen Gandhinagar, Adyar Ankara Asfalti ü zeri No.22 Tel. +33 (0) 4 74 75 89 89 Fon +32-2/2 51 12 36 Chennai 600 020 Kartal 81412 Fax +33 (0) 4 74 75 89 90 Fax +32-2/2 51 74 89 Fon +91-44/24 405 136 / 137 Istanbul E-mail: [email protected] Fax +91-44/24 405 1205 P.K. 167 Internet: www.belin-y.com Brasilien/Brazil [email protected] Fon +90-216/3 06 65 70 LMT Böhlerit LTDA. Fax +90-216/3 06 65 74 Gear Cutting Tools Rua André de Leão 155 Bloco A Mexiko/Mexico [email protected] CEP: 04672-030 LMT Boehlerit S.A. de C.V. • Hobbing Socorro-Santo Amaro Ungarn/Hungary Bilz Werkzeugfabrik GmbH & Co. KG Matias Romero No. 1359 • Gear Milling Vogelsangstraße 8 São Paulo Col. Letran Valle LMT Boehlerit KFT. D-73760 Ostfildern, Deutschland Fon +55/11 55 46 07 55 03650 Mexico D.F. Kis-Duma U.6 Tel. +49 (0) 711 3 48 01-0 Fax +55/11 55 46 04 76 Fon +52 (55) 56 05 82 77 PoBox 2036 Erdliget Pf. 32 Fax +49 (0) 711 3 48 12 56 [email protected] Fax +52 (55) 56 05 85 01 2030 Erd E-mail: [email protected] [email protected] Fon +36/23 52 19 10 Internet: www.bilz.de China Fax +36/23 52 19 14 Leitz Tooling Systems Österreich/Austria [email protected] (Nanjing) Co.
    [Show full text]
  • Product Catalogue 2017 2018
    Sun Race Sturmey-Archer Inc. No.51, Haishan Central Street, Luzhu District, Taoyuan City, 33856 Taiwan Tel:+886 (3) 354-3900 Fax:+886 (3) 354-2858 E-mail:[email protected] Sun Race Sturmey-Archer Europe Nijverheidsweg 19A, 3641 RP Mijdrecht, The Netherlands Tel:+31 (20) 609-0221 Fax:+31 (20) 609-0211 E-mail:[email protected] Sun Race Sturmey-Archer USA 952 School Street, #409 Napa, CA 94559 U.S.A. Tel:+1 (707) 259-6700 Fax:+1 (707) 259-6710 E-mail:[email protected] reproduced from 1935 advertisement. 2017 2018 2017 2018 / Product Catalogue A0 Introduction The Original And Best Since 1902 Look for SunRace 2017-2018 catalogue. For 115 years, Sturmey-Archer have been pioneers in the design and manufacture of internal gear hubs, hub brakes and dynohub lighting. This is a history of progressive research and development which has made cycling easier and safer. This catalogue illustrates the complete range of Sturmey-Archer cycle components, including the latest innovations. www.sturmey-archer.com www.sturmey-archerheritage.com Introduction History www.sturmey-archerheritage.com The Original And Best Since 1902 Look for SunRace 2017-2018 catalogue. 1902 1907 1910 1910 1913 1918 1922 1922 For 115 years, Sturmey-Archer 3-Speed Hub 3-Speed Coaster X Gear Control Catalogue Tour de France KB 3-Speed CC Single K Gear Control have been pioneers in the design Drum Brake Speed Coaster and manufacture of internal gear hubs, hub brakes and dynohub lighting. This is a history of progressive research and development which 1929 1931 1933 1938 1939 1946 1951 Nürnberg, Germany Motorcycle TF 2-Speed Fixed Dynohub & TF 4-Speed Trigger Control ASC 3-Speed Dry Battery Unit has made cycling easier and safer.
    [Show full text]
  • General Applications of Gears
    UNIT - III GEAR MANUFACTURING PROCESS SPRX1008 – PRODUCTION TECHNOLOGY - II Gears are widely used in various mechanisms and devices to transmit power and motion positively (without slip) between parallel, intersecting (axis) and non-intersecting non parallel shafts, •without change in the direction of rotation •with change in the direction of rotation •without change of speed (of rotation) •with change in speed at any desired ratio Often some gearing system (rack – and – pinion) is also used to transform Rotary motion into linear motion and vice-versa. Fig.1 Features of Spur Gear Gears are basically wheels having, on its periphery, equispaced teeth which are so designed that those wheels transmit, without slip, rotary motion smoothly and uniformly with minimum friction and wear at the mating tooth – profiles. To achieve those favorable conditions, most of the gears have their tooth form based on in volute curve, which can simply be defined as Locus of a point on a straight line which is rolled on the periphery of a circle or Locus of the end point of a stretched string while its unwinding over a cylinder as indicated in Fig. General Applications of Gears Gears of various type, size and material are widely used in several machines and systems requiring positive and stepped drive. The major applications are: • Speed gear box, feed gear box and some other kinematic units of machine tools • Speed drives in textile, jute and similar machineries • Gear boxes of automobiles • Speed and / or feed drives of several metal forming machines • Machineries for mining, tea processing etc. • Large and heavy duty gear boxes used in cement industries, sugar industries, cranes, conveyors etc.
    [Show full text]