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Related Companies

Gleason Corporation
Gleason Corporation’s mission is to be The Total Gear Solutions Provider™ to its global customer base. Gleason is a world leader in the development, manufacture and sale of gear production machinery and related equipment. The Company’s products are used by customers in automotive, truck, aircraft, agriculture, mining, windpower, construction, power tool and marine industries and by a diverse set of customers serving various industrial equipment markets. Gleason has manufacturing operations in Rochester, New York; Rockford, Illinois; Dayton, Ohio; Munich and Ludwigsburg, Germany; Studen, Switzerland; Bangalore; India, and Suzhou, China and has sales and service offices throughout North and South America, Europe and in the Asia-Pacific region.

Ipsen, Inc.
Ipsen, Inc. designs and manufactures thermal processing systems (vacuum heat treat furnaces and atmosphere heat treat furnaces) for a wide variety of markets, including Aerospace, Medical, Energy, Chemical and Automotive. With thousands of installed systems worldwide, whether it's innovative titanium knee implants, making cars more efficient, developing new jet engines or going to the moon, Ipsen delivers quality.

KISSsoft USA LLC
The KISSsoft calculation program has been developed to focus on the needs of mechanical engineers and power transmission profes

Pentagear Products
Pentagear, a builder of special machines and automated systems for over 50 years, offers the ND430 Next Dimension® Gear Measurement System. The Next Dimension® has been designed with the latest in motion control technology.

Precision Gage Co., Inc.
Precision Gage Co., Inc. is the manufacturer and supplier of the VARI-ROLL and GearMaster Dual Flank Composite Gear Tester.

Seco Tools Inc.
Our business mission is to develop, manufacture and globally market metal cutting solutions that satisfy our customer requirements for quality, service and cost-efficiency. Our product portfolio consists of solutions for milling, turning, holemaking and holding systems. We also offer a range of complementary services within the Seco Tools Business Solutions concept.

Stresstech Oy
Stresstech provides products and services for process control and quality inspection of gears, camshafts,crankshafts, bearings, valves, etc. Applications for monitoring various manufacturing processes, such as grinding, super finishing, shot peening, heat treatment, case depth after case hardening, etc. Turnkey solutions, instruments and measurement services based on Barkhausen Noise (BN), X-ray Diffraction (XRD) and hole-drilling for studying residual stresses, retained austenite contents, grinding burns, heat treat defects, and hardness changes, welding stresses, etc. Applications for the automotive, machine and aerospace industries.

Celanese
Sandvik Coromant
Seco/Warwick Corp.
SETCO Precision Spindles
Wenzel America

Related Power Transmission Categories

Automotive Axles
Automotive Gears
Automotive Starter Ring Gears

Related Power Transmission Companies

Schaeffler Group USA, Inc
Schaeffler North America is responsible for the engineering, production, sales and marketing for the INA, LuK, FAG and Barden brands throughout the United States, Canada, Mexico, Central America and the Caribbean. All four brands provide high-performance, precision technologies for the Automotive OEM, Industrial OEM and Distribution markets as well as the Aerospace industry. INA is a leading supplier of rolling bearings, linear motion, engine components, plain bearings and precision components. LuK is a key source for automotive clutch, torque converter, hydraulic and transmission systems. FAG is a major global supplier of bearings with core competencies in ball, taper, cylindrical and spherical bearing products. The Barden Corporation focuses on high precision, miniature and aerospace products.

Yaskawa America, Inc.
The Drives & Motion Division of Yaskawa America, Inc. manufactures industrial automation equipment. Our products include industrial AC variable speed drives; commercial HVAC drives; servo systems and machine controllers; spindle drives and motors; and low-voltage industrial control switches. These products are used in a variety of industries including automotive, building automation, chemical, food/beverage, irrigation, machine tool, material handling, metal forming, oil/gas, packaging, pharmaceutical, power generation, solar, plastics and rubber, textile, and water/wastewater.

ZZN Transmission Plant
The ZZN Transmission Plant has over 30 years of experience in manufacturing powertrain components. Its production facilities and highly qualified staff guarantee the world’s top quality products. Numerically controlled machines, machining centers, electron beam vacuum welding center and modern heat treatment equipment enable the manufacture of high quality products.

Articles About automotive


1 Automotive Transmission Design Using Full Potential of Powder Metal (August 2013)

For metal replacement with powder metal (PM) of an automotive transmission, PM gear design differs from its wrought counterpart. Indeed, complete reverse-engineering and re-design is required so to better understand and document the performance parameters of solid-steel vs. PM gears. Presented here is a re-design (re-building a 6-speed manual transmission for an Opel Insignia 4-cylinder, turbocharged 2-liter engine delivering 220 hp/320 N-m) showing that substituting a different microgeometry of the PM gear teeth -- coupled with lower Young’s modulus -- theoretically enhances performance when compared to the solid-steel design.

2 QS - 9000 Rules (November/December 1995)

Ready or not, QS-9000 is here. If you are a first-tier supplier to one of the Big Three automotive companies, you've already heard that compliance with this new quality standard is now an entry-level requirement for doing business with Ford, General Motors and Chrysler. If you're a second-or third-tier supplier, you can expect the ripple effect of this new standard to hit your company one way or another.

3 Boom or Bust - Are You in the Right Markets (June/July 2013)

Over the past few months we've talked with a lot of gear manufacturers. Many of them tell us business is strong, while others are struggling with reduced demand. The difference between them isn't so much in the quality of their manufacturing operations, but rather trends in the end markets they serve.

4 Hypoloid Gear with Small Shaft Angles and Zero-to-Large Offsets (November/December 2009)

Beveloid gears are used to accommodate a small shaft angle. The manufacturing technology used for beveloid gearing is a special setup of cylindrical gear cutting and grinding machines. A new development, the so-called Hypoloid gearing, addresses the desire of gear manufacturers for more freedoms. Hypoloid gear sets can realize shaft angles between zero and 20° and at the same time, allow a second shaft angle (or an offset) in space that provides the freedom to connect two points in space.

5 Setting Load Parameters for Viable Fatigue Testing of Gears in Powertrain Axles Part I: Single-Reduction Axles (August 2014)

This presentation introduces a new procedure that - derived from exact calculations - aids in determining the parameters of the validation testing of spiral bevel and hypoid gears in single-reduction axles.

6 The Capacity of Superfinished Vehicle Components to Increase Fuel Economy, Part I (January/February 2009)

This paper will present data from both laboratory and field testing demonstrating that superfinished components exhibit lower friction, operating temperature, wear and/ or higher horsepower, all of which translate directly into increased fuel economy.

7 Talking Truth to Power: Plastic Gears Taking Back Seat to No One (March/April 2013)

Automotive industry embraces proven yet evolving technology of plastic gears.

8 How to Minimize Power Losses in Transmissions, Axles and Steering Systems (September 2012)

By increasing the number of gears and the transmission-ratio spread, the engine will run with better fuel efficiency and without loss of driving dynamics. Transmission efficiency itself can be improved by: using fuelefficient transmission oil; optimizing the lubrication systems and pumps; improving shifting strategies and optimizing gearings; and optimizing bearings and seals/gaskets.

9 Low-Distortion Heat Treatment of Transmission Components (October 2011)

This paper presents how low pressure carburizing and high pressure gas quenching processes are successfully applied on internal ring gears for a six-speed automatic transmission. The specific challenge in the heat treat process was to reduce distortion in such a way that subsequent machining operations are entirely eliminated.

10 The Effect of Reverse Hobbing at a High Speed (March/April 1987)

Today it is common practice when climb hobbing to keep the direction of the hob thread the same as that of the helical gear. The same generalization holds true for the mass production of gears for automobiles. It is the authors' opinion, however, that conventional hobbing with a reverse-handed hob is more effective for the high-speed manufacture of comparatively small module gears for automobiles. The authors have proven both experimentally and theoretically that reverse-handed conventional hobbing, using a multi-thread hob with a smaller diameter is very effective for lengthening the life of the hob and for increasing cutting efficiency at high speeds.

11 Investigation of Gear Rattle Phenomena (September/October 1992)

The acceptance by discerning customers of passenger cars is dependent upon both the actual noise lever and the subjective noise character. The subjective noise character itself can contain, among other features, undesirable noise phenomena which become apparent at certain points in the vehicle operating range. One such critical phenomenon is gear rattle, which is mainly present under low speed, high load conditions. Due to changes in the angular velocity of the crankshaft, gear rattle under driving conditions occurs at the unloaded gears and splines.

12 Gearheads Rejoice! The Internal Combustion Engine is Back (May 2011)

The opposed-piston internal combustion engine is making a comeback.

13 Distortion Control by Innovative Heat Treating Technologies in the Automotive Industry (August 2008)

The proper control of distortion after thermal treatment of powertrain components in the automotive industry is an important measure in ensuring high-quality parts and minimizing subsequent hard machining processes in order to reduce overall production costs.

14 Bending Fatigue, Impact and Pitting Resistance of Ausform-Finished PM Gears (June 2010)

The powder metal (P/M) process is making inroads in automotive transmission applications due to substantially lower costs of P/M-steel components for high-volume production, as compared to wrought or forged steel parts. Although P/M gears are increasingly used in powered hand tools, gear pumps and as accessory components in automotive transmissions, P/M-steel gears are currently in limited use in vehicle transmission applications. The primary objective of this project was to develop high-strength P/M-steel gears with bending fatigue, impact resistance and pitting fatigue performance equivalent to current wrought steel gears.

15 New Transmissions Drive Automotive Gear Industry (July/August 2006)

News from the major automakers and transmission suppliers.

16 The Effect of Flexible Components on the Durability, Whine, Rattle and Efficiency of an Automotive Transaxle Geartrain System (November/December 2009)

Gear engineers have long recognized the importance of considering system factors when analyzing a single pair of gears in mesh. These factors include important considerations such as load sharing in multi-mesh geartrains and bearing clearances, in addition to the effects of flexible components such as housings, gear blanks, shafts and carriers for planetary geartrains. However, in recent years, transmission systems have become increasingly complex—with higher numbers of gears and components—while the quality requirements and expectations in terms of durability, gear whine, rattle and efficiency have increased accordingly.

17 Net-Shape Forged Gears - The State of the Art (January/February 2002)

Traditionally, high-quality gears are cut to shape from forged blanks. Great accuracy can be obtained through shaving and grinding of tooth forms, enhancing the power capacity, life and quietness of geared power transmissions. In the 1950s, a process was developed for forging gears with teeth that requires little or no metal to be removed to achieve final geometry. The initial process development was undertaken in Germany for the manufacture of bevel gears for automobile differentials and was stimulated by the lack of available gear cutting equipment at that time. Later attention has turned to the forging of spur and helical gears, which are more difficult to form due to the radial disposition of their teeth compared with bevel gears. The main driver of these developments, in common with most component manufacturing, is cost. Forming gears rather than cutting them results in increased yield from raw material and also can increase productivity. Forging gears is therefore of greater advantage for large batch quantities, such as required by the automotive industry.

18 Gear Surface Durability Development to Enhance Transmission Power Density (July/August 2002)

Gear pitting is one of the primary failure modes of automotive transmission gear sets. Over the past years, many alternatives have been intended to improve their gear surface durability. However, due to the nature of new process development, it takes a length of time and joint efforts between the development team and suppliers to investigate and verify each new approach.

19 Suitability of High Density Powder Metal Gears for Gear Applications (January/February 2001)

The implementation of powder metal (PM)components in automotive applications increases continuously, in particular for more highly loaded gear components like synchromesh mechanisms. Porosity and frequently inadequate material properties of PM materials currently rule out PM for automobile gears that are subject to high loads. By increasing the density of the sintered gears, the mechanical properties are improved. New and optimized materials designed to allow the production of high-density PM gears by single sintering may change the situation in the future.

20 Metallurgical Aspects to be Considered in Gear and Shaft Design (March/April 1999)

In his Handbook of Gear Design (Ref.1), Dudley states (or understates): "The best gear people around the world are now coming to realize that metallurgical quality is just as important as geometric quality." Geometric accuracy without metallurgical integrity in any highly stressed gear or shaft would only result in wasted effort for all concerned - the gear designer, the manufacturer, and the customer - as the component's life cycle would be prematurely cut short. A carburized automotive gear or shaft with the wrong surface hardness, case depth or core hardness may not even complete its basic warranty period before failing totally at considerable expense and loss of prestige for the producer and the customer. The unexpected early failure of a large industrial gear or shaft in a coal mine or mill could result in lost production and income while the machine is down since replacement components may not be readily available. Fortunately, this scenario is not common. Most reputable gear and shaft manufacturers around the world would never neglect the metallurgical quality of their products.

21 Chamfering and Deburring External Parallel Axis Gears (November/December 1996)

The chamfering and deburring operations on gear teeth have become more important as the automation of gear manufacturing lines in the automotive industry have steadily increased. Quieter gears require more accurate chamfers. This operation also translates into significant coast savings by avoiding costly rework operations. This article discusses the different types of chamfers on gear teeth and outlines manufacturing methods and guidelines to determine chamfer sizes and angles for the product and process engineer.

22 Powder Metal Magic (August 2012)

Capstan Atlantic, located in Wrentham, Massachusetts, produces powder metal gears, sprockets and complex structural components. The company has provided unique powder metal products in a variety of industries including automotive, business machines, appliances, lawn and garden equipment and recreational vehicles.

23 Press Quenching and Effects of Prior Thermal History on Distortion during Heat Treatment (March/April 2014)

Precision components (industrial bearing races and automotive gears) can distort during heat treatment due to effects of free or unconstrained oil quenching. However, press quenching can be used to minimize these effects. This quenching method achieves the relatively stringent geometrical requirements stipulated by industrial manufacturing specifications. As performed on a wide variety of steel alloys, this specialized quenching technique is presented here, along with a case study showing the effects of prior thermal history on the distortion that is generated during press quenching.

24 Light-Weight Design for Planetary Gear Transmissions (September 2013)

There is a great need for future powertrains in automotive and industrial applications to improve upon their efficiency and power density while reducing their dynamic vibration and noise initiation. It is accepted that planetary gear transmissions have several advantages in comparison to conventional transmissions, such as a high power density due to the power division using several planet gears. This paper presents planetary gear transmissions, optimized in terms of efficiency, weight and volume.

25 Differential Gears (October 2012)

What are the manufacturing methods used to make bevel gears used in automotive differentials?

26 The Wafer Shaper Cutter (March/April 1989)

In 1985 a new tooling concept for high volume gear production was introduced to the gear manufacturing industry. Since then this tool, the wafer shaper cutter, has proven itself in scores of applications as a cost-effective, consistent producer of superior quality parts. This report examines the first high-production installation at the plant of a major automotive supplies, where a line of twenty shapers is producing timing chain sprockets.

27 High-Performance Sintered-Steel Gears for Transmissions and Machinery: A Critical Review (August 2012)

Except for higher-end gear applications found in automotive and aerospace transmissions, for example, high-performance, sintered-steel gears match wrought-steel gears in strength and geometrical quality. The enhanced P/M performance is due largely to advances in powder metallurgy over last two decades, such as selective surface densification, new materials and lubricants for high density and warm-die pressing. This paper is a review of the results of a decade of research and development of high- performance, sintered-steel gear prototypes.

28 PPD Wear Protection Treatment for Large Parts Opens New Horizons (March/April 2014)

Environmentally friendly, highly efficient and lasting a product's lifetime. With characteristics like this, Pulsed-Plasma Diffusion (PPD) technology from Oerlikon Balzers has established itself as an industry standard for the treatment of large automotive press tooling. Now the technology specialists are targeting new applications with this advanced process, offering an alternative to traditional hard-chrome processes.

29 Future Demands Next Generation of Standards and Practices in Gear Industry (May 2010)

Gear manufacturers are moving into an era that will see changes in both engineering practices and industry standards as new end-products evolve. Within the traditional automotive industry, carbon emission reduction legislation will drive the need for higher levels of efficiency and growth in electric and hybrid vehicles. Meanwhile, the fast growing market of wind turbines is already opening up a whole new area of potential for gearbox manufacturers, but this industry is one that will demand reliability, high levels of engineering excellence and precision manufacturing.

30 Hybrid, Alternative Drivetrains Take Center Stage at CTI Symposium (May 2010)

As the automotive industry continues to reinvent itself, new transmission technologies are at the forefront of this effort, and there is a whirlwind of new developments being detailed at the German Car Training Institute’s Automotive Transmissions and Drive Trains Symposium North America.

31 Load Carrying Capacity of Screw Helical Gears with Steel Pinions and Plastic Wheels (July/August 2004)

There is an increasing significance of screw helical and worm gears that combine use of steel and plastics. This is shown by diverse and continuously rising use in the automotive and household appliance industries. The increasing requirements for such gears can be explained by the advantageous qualities of such a material combination in comparison with that of the traditional steel/bronze pairing.

32 Practical Magic - Metrology Products Keep Pace with Machine Technology (July 2009)

Gear metrology is a revolving door of software packages and system upgrades. It has to be in order to keep up with the productivity and development processes of the machines on the manufacturing floor. Temperature compensation, faster inspection times and improved software packages are just a few of the advancements currently in play as companies prepare for new opportunities in areas like alternative energy, automotive and aerospace/defense.

33 Remedies for Cutting Edge Failure of Carbide Hob due to Chip Crush (November/December 2004)

Some results of evaluation by this method in the automotive industry.

34 Factors Influencing Fracture Toughness of High-Carbon Martensitic Steels (January/February 1989)

Plane strain fracture toughness of twelve high-carbon steels has been evaluated to study the influence of alloying elements, carbon content and retained austenite. The steels were especially designed to simulate the carburized case microstructure of commonly used automotive type gear steels. Results show that a small variation in carbon can influence the K IC significantly. The beneficial effect of retained austenite depends both on its amount and distribution. The alloy effect, particularly nickel, becomes significant only after the alloy content exceeds a minimum amount. Small amounts of boron also appear beneficial.

35 Application Examples from "Optimizing Gear Geometry for Minimum Transmission Error, Mesh Friction Losses and Scuffing Risk Through Computer- Aided Engineering" (August 2010)

Examples from gears in wind turbine, automotive and industrial applications.

36 Notes from the Editor's Desk (October/November 1984)

History comes around full circle. It is interesting to talk to gear manufacturers who service the defense, aerospace, automotive and computer industries and find that their sales, production and backlogs reflect excellent and, in some cases, record breaking business.

37 Vacuum Oil Quenching (November/December 2011)

The October 2011 issue of Gear Technology featured the article “Low-Distortion Heat Treatment of Transmission Components,” which covered the combination of low-pressure carburizing and high pressure gas quenching in an automotive environment. Here, heat treating expert Dan Herring explains why oil quenching is an appropriate choice for many applications.

38 Controlling Gear Distortion and Residual Stresses During Induction Hardening (March/April 2012)

Induction hardening is widely used in both the automotive and aerospace gear industries to minimize heat treat distortion and obtain favorable compressive residual stresses for improved fatigue performance. The heating process during induction hardening has a significant effect on the quality of the heat-treated parts. However, the quenching process often receives less attention even though it is equally important.

39 Computer Aided Design (CAD) of Forging and Extrusion Dies for the Production of Gears by Forming (January/February 1985)

Material losses and long production times are two areas of conventional spur and helical gear manufacturing in which improvements can be made. Metalforming processes have been considered for manufacturing spur and helical gears, but these are costly due to the development times necessary for each new part design. Through a project funded by the U.S. Army Tank - Automotive Command, Battelle's Columbus Division has developed a technique for designing spur and helical gear forging and extrusion dies using computer aided techniques.

40 Precision Forged Spiral Bevel Gears (August/September 1984)

A recent U.S. Army Tank-Automotive Command project, conducted by Battelle's Columbus Laboratories. successfully developed the methodology of CAD/CAM procedures for manufacturing dies (via EDM) for forging spiral bevel gears. Further, it demonstrated that precision forging of spiral bevel gears is a practical production technique. Although no detailed economic evaluation was made in this study, it is expected that precision forging offers an attractive alternative to the costly gear cutting operations for producing spiral bevel gears.

News Items About automotive

1 AFC Holcroft Receives Order from Tier One Automotive Supplier (June 12, 2014)
A global Tier One automotive supplier has placed an order with AFC-Holcroft for a production gas modernization project involving the purc... Read News

2 Automotive Supplier Purchases AFC-Holcroft Walking Beam Furnace (July 2, 2012)
A Tier One automotive supplier located in the Eastern Central region of the United States has purchased a new Walking Beam Furnace with &... Read News

3 Ikona Gear Technology Licensed for First Automotive Application (January 15, 2006)
Ikona Gear announced its patented gearing system has been licensed for its first automotive application, an electric par... Read News

4 Tool Maker Expands to Meet Automotive Demand (April 13, 2006)
Engineered Tools Corp., a manufacturer of carbide cutting tools used in production of spiral bevel ring gears and pinions, announced the ... Read News

5 KBE+ Provides Consulting Service with Chinese Automotive Manufacturer (February 8, 2007)
KBE+ Inc. recently was awarded a contract with Nanjing Automobile (Group) Corp., located in Nanjing, China. According to the company... Read News

6 ABA-PGT Awarded ISO TS 16949 Automotive Certification (March 29, 2011)
ABA-PGT Inc., a producer of high precision tooling and precision-molded plastic gears, has been awarded the ISO TS 16949 Automotive Certi... Read News

7 Cimcool Offers Hybrid Fluid Technology for Automotive Industry (October 17, 2012)
Cimcool Fluid Technology has announced the release of a new lubricant technology for machining and grinding of hard metals. These new Cim... Read News

8 Ford Announces Sale of Automotive Components Holdings’ PTU Business (August 30, 2007)
Ford Motor Co. and Linamar Corp. announced the signing of definitive agreements for the sale of the Automotive Components Holdings’... Read News