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Grinding Wheels

PRODUCT NEWS | 2024-10-22

Walter Introduces Automated Tool Production System

With the new Automated Tool Production (ATP) system, Walter now offers a comprehensive automation solution for cutting tools. ATP networks grinding, eroding and measuring machines from Walter, as well as upstream and downstream machines from other system partners in the production process.

PRODUCT NEWS | 2024-10-22

Weiler Abrasives Launches Precision Express Program for Gear Grinding Wheels

Weiler Abrasives has launched its new Precision Express program that cuts lead times for gear grinding wheels from months to days. The program is designed to help gear manufacturers in industries such as automotive, energy and aerospace improve quality, increase consistency and deliver on time to their customers — for added peace of mind. 

PRODUCT NEWS | 2024-08-15

Weiler Abrasives Announces New Blending Disc Product

Weiler Abrasives has announced its new blending disc product lineup that is ideal for a wide range of blending, weld cleaning and polishing needs. The blending discs can help operations save time and money through faster material removal and longer product life in such applications as shipbuilding, structural fabrication and welding. 

FEATURE ARTICLES | 2024-07-23

Understanding Bevel Gear Grinding

The world of bevel gear grinding is a complex topic. How do you determine which grinding and dressing parameters to select for a desired surface finish? What type of grinding wheel should be used? What type of dresser should be used? How do all these factors affect the gear noise and quality levels? These are some questions that will be addressed in this article.

FEATURE ARTICLES | 2024-05-10

Anatomy of a Rebuild

From the outside, Gallmar Industries, nestled into an Oshkosh, WI, neighborhood, looks like any unassuming, medium-sized gear shop. Then take a plant tour with Gallmar’s VP of Operations Kenan Zolota—and prepare to be amazed. The facility stretches on like the Army’s warehouse at the end of Raiders of the Lost Ark, with everything from gear cutting to heat treat, gear grinding to inspection, all under one roof. Gallmar’s breadth of product line is in evidence too: defense-related transmission gears, 60-in. diameter internal gears for mining equipment, axle components for fire/ rescue trucks five feet in length, right down to a bin of brass ammunition casings that Zolota says are a special order.

PRODUCT NEWS | 2024-05-10

EMAG Offers Flexible External Grinding with WPG 7 CNC

In many areas of application, it is uneconomical to use oversized universal cylindrical grinding machines for the external machining of smaller components - a lot of floor space is lost and the functionality is not fully utilized. With the new WPG 7 CNC external grinding machine, EMAG Weiss demonstrates another way of grinding workpieces with a maximum length of 250 millimeters. The very small machine requires only a minimal footprint, but at the same time features a whole range of high-tech components for flexibility and productivity. What is important in detail? 

INDUSTRY NEWS | 2024-04-30

Continental Diamond Tool Enters Strategic Partnership with Krebs & Riedel

Continental Diamond Tool Corporation (CDT) proudly announces its partnership with Krebs & Riedel, a global leader in the abrasives industry. This collaboration positions CDT as the exclusive North American source for Krebs & Riedel abrasive products within the USA, Canada, and Mexico.

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VIDEO | 2024-01-10

Gear Technology / Revolutions interview with David Goetz of Norton | Saint-Gobain Abrasives

Gear Technology sat down with David Goetz, Corporate Applications Engineer at Norton | Saint-Gobain Abrasives to learn the latest about abrasives for gear manufacturing. The interview took place during Motion+Power Technology Expo 2023 in Detroit.

PRODUCT NEWS | 2023-10-05

Weiler Presents Next Generation Abrasives

Weiler Abrasives recently announced the next evolution of abrasives — Tiger 2.0 zirconia alumina and aluminum oxide cutting, grinding and combo wheels. Designed for demanding metal fabrication industries like shipbuilding, pressure vessel and heavy equipment fabrication, these abrasives help cut through inefficiencies, safety issues and labor shortages that prevent companies from doing their best work. 

PUBLISHER'S PAGE | 2023-05-22

EVs are Driving Technology in the Gear Industry

A significant amount of work is being done to advance the technology of gears specifically for use in electric vehicles. No longer hidden by the noise of the internal combustion engine, the transmission has taken center stage as the noisiest component in most electric-driven cars.

FEATURE ARTICLES | 2023-05-22

Technology Advances for Continuous Generating Gear Grinding in EV and More

Continuous generating cylindrical gear grinding is one of the most demanding grinding applications for automotive and aerospace manufacturers. To improve gear efficiency, gear life, and noise levels, gear profile tolerances and surface finish requirements are becoming more stringent. This is especially true for EV gears, which typically require lower noise characteristics than traditional automotive gears. These new quality requirements must be maintained without sacrificing cycle time, and without inducing grinding burn.

PRODUCT NEWS | 2023-04-05

Suhner to Unveil New Robotic Electric Force Compliance System at AUTOMATE

Recognizing the role robotics plays in adding efficiency and lowering production costs for manufacturers of all types and sizes, Suhner continues to expand its robotics offering. The fully electric EFC-02 delivers precise, constant force throughout robotic grinding, sanding and deburring processes—resulting in superior, consistent surface quality. 

PRODUCT NEWS | 2023-03-20

Krebs & Reidel Offer Premium Grinding Wheels with High Process Reliability

Serial production of large gears requires a high level of quality, excellence, and continuity in production. Emphasis is placed on maximum synergy between the grinding machine, the grinding process, and the grinding wheel. After several successful trials on various Klingelnberg Höfler Rapid grinding machines carried out by Krebs & Riedel with customers in their production facilities, Krebs & Riedel has received several large orders for grinding large gears from abroad and has introduced the new premium grinding wheels with high process reliability. 

INDUSTRY NEWS | 2022-12-02

JTEKT Introduces New High-Productivity Silicon Wafer Disc Grinder

JTEKT recently demonstrated a new double-disc horizontal grinder that simultaneously grinds both sides of silicon wafers to +/- 1 micron from as-sliced condition. The DXSG320 performance represents a massive improvement in accuracy and productivity over the single-spindle vertical grinders common in the chip industry today which grind to 3-4 microns, according to the company.

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INDUSTRY NEWS | 2022-08-08

Tyrolit Acquires Egeli Egesan Group

In acquiring the Turkish Egeli Egesan Group the Tyrolit Group continues to implement its business expansion strategy and has further strengthened its position on the international abrasives market.

FEATURE ARTICLES | 2022-06-27

Large Gear Grinding

The way to increase production, especially with the largest gears, is to decrease nonproductive time with improved strategies.

INDUSTRY NEWS | 2022-06-16

Norton Highlights Xtrimium Gear Grinding Wheels at IMTS 2022

At IMTS 2022, Norton ׀ Saint-Gobain Abrasives (Booth #237042, North Hall) will offer a portfolio of gear grinding products specifically designed by category to provide higher profile accuracy, supreme form holding and burn-free grinding in worm, profile, and bevel applications. Highlighting the range is an innovative dual-worm wheel design that enables two operations in one grinding wheel, substantially saving time and cost. 

INDUSTRY NEWS | 2022-04-29

Seco Green Fund Achieves Sustainability Goals for Over a Decade

To ensure their contribution to reducing climate change and negative environmental impact, Seco Tools launched the Green Investment Fund in 2012. Since then, the Green Fund has supported the investment of a diversity of sustainable projects which have reduced the environmental impact of the company’s operations.

PRODUCT NEWS | 2022-04-28

3M Technologies Address E-Mobility Trends

The automotive industry is evolving. The trend toward more electromobility is also changing the way cars are being manufactured. In some cases, this has a serious impact, not only on automakers themselves, but also on suppliers. Jürgen Hechler, Global Application Engineering Leader at 3M, is nevertheless confident: "We expect the demand for high-precision abrasives to continue to grow, despite the discussion about electromobility." Among other things, 3M supplies the automotive industry with abrasives for machining gears and shafts.

INDUSTRY NEWS | 2022-04-20

Weiler Introduces Full Line of Foundry Abrasives

Weiler Abrasives has announced the availability of its Tiger abrasives line designed to deliver maximum performance in the most demanding foundry applications. With solutions to address all grinding applications in the cleaning room, Tiger products help decrease cycle times and improve operator experience. 

INDUSTRY NEWS | 2022-04-19

Kapp Niles KX 300 P Offers Machining Flexibility

The Kapp Niles KX 300 P gear center offers machining flexibility due to various machining processes. The machine features direct drives in both the tool and workpiece spindles.

INDUSTRY NEWS | 2022-04-14

Karl M. Weiler Receives Lifetime Achievement Award

Weiler Abrasives is pleased to announce that Karl M. Weiler, former president, has received the John J. Buckley Lifetime Achievement Award from the Industrial Supply Association (ISA). 

INDUSTRY NEWS | 2021-06-24

Norton Offers New IDeal-Prime Internal Diameter Grinding Wheels

Saint-Gobain Abrasives recently introduced its new high performance Norton IDeal-Prime Internal Diameter Grinding Wheels for precision ap...
GEAR TALK WITH CHUCK | 2020-08-01

IMTS Future Tech

The Digital Manufacturing Revolution Evolves in 2020 IMTS will offer two comprehensive digital programs, IMTS Network and IMTS Sp...

GEAR TALK WITH CHUCK | 2020-06-24

Mid-Game Adjustments

People of a certain age well remember The A-Team, a television show about a team of ex-military guys who went around righting wrongs and b...
INDUSTRY NEWS | 2019-08-16

Norton Will Highlight Xtrimium Grinding Wheels During Motion + Power Technology Expo

Norton Xtrimium gear grinding wheels will be highlighted at the Motion + Power Technology Show Booth #2607, October 15-17, 2019 at the Co...
GEAR TALK WITH CHUCK | 2019-06-11

Rob Swiss — The Accidental Engineer

Another young man discovers you need not be an expert machinist to succeed as a gear engineer. Spoiler alert: never tangle with a grinding wheel; they are undefeated in all time.
INDUSTRY NEWS | 2019-04-29

3M Introduces High Performance, Precision Structured Internal Grinding Wheels

Specifically designed abrasive tools require tight wheels, geometry, and tolerance for mass production. Companies that grind in the most ...
INDUSTRY NEWS | 2018-11-15

Beautiful on the Inside

Higher Quality Internal Gears

FEATURE ARTICLES | 2018-11-01

Spin City

Grinding Wheel Technology Focuses on Speed, Efficiency and Time Savings
FEATURE ARTICLES | 2018-11-01

Why Select Gear Grinding with cBN

Cubic Boron Nitride (cBN) abrasive wheels, which are a specially engineered abrasive grain referred to as a superabrasive, typically yield 2,200 - 2,500 parts per dress with one wheel lasting as long as four to six months.
FEATURE ARTICLES | 2018-06-01

Cutting Down on Setup Time

With increasingly smaller returns from improving the speed of the actual gear grinding process, improving your setup time has become a primary way to keep improving efficiency. Here's the latest on how you can do that today.
INDUSTRY NEWS | 2017-08-17

Meister Abrasives HPL Grinding Wheels Naturally Release Lubricant as they Grind

Meister Abrasives new HPL (High Performance Lubrication) Grinding Wheels rely on premium grade CBN crystals fixed with durable, porous, i...
INDUSTRY NEWS | 2016-03-29

Saint-Gobain Norton Quantum3 Depressed Center Grinding Wheels Designed to Decrease Downtime, Improve User Comfort

Saint-Gobain Abrasives has introduced Norton Quantum3 (NQ3) Depressed Center Grinding Wheels. Featuring a proprietary grain along with a ...
TECHNICAL ARTICLES | 2015-08-01

Tooth Flank Fracture - Basic Principles and Calculation Model for a Sub-Surface-Initiated Fatigue Failure Mode of Case-Hardened Gears

Cracks initiated at the surface of case-hardened gears may lead to typical life-limiting fatigue failure modes such as pitting and tooth root breakage. Furthermore, the contact load on the flank surface induces stresses in greater material depth that may lead to crack initiation below the surface if the local material strength is exceeded. Over time the sub-surface crack propagation may lead to gear failure referred to as “tooth flank fracture” (also referred to as “tooth flank breakage”). This paper explains the mechanism of this subsurface fatigue failure mode and its decisive influence factors, and presents an overview of a newly developed calculation model.
FEATURE ARTICLES | 2014-03-01

Brad Foote and 3M Collaborate on Testing of Ground Parts

Cubitron II wheels are put to the test in this case study.
FEATURE ARTICLES | 2014-03-01

In Search of a Competitive Advantage

The grinding/abrasives market is rapidly changing, thanks to new technology, more flexibility and an attempt to lower customer costs. Productivity is at an all-time high in this market, and it’s only going to improve with further R&D. By the time IMTS 2014 rolls around this September, the gear market will have lots of new toys and gadgets to offer potential customers. If you haven’t upgraded any grinding/abrasives equipment in the last five years, now might be a good time to consider the investment.
PRODUCT NEWS | 2013-01-01

Product News

The complete Product News section from the January/February 2013 issue of Gear Technology.
FEATURE ARTICLES | 2012-09-01

IMTS 2012 Product Preview

Previews of manufacturing technology related to gears that will be on display at IMTS 2012.
TECHNICAL ARTICLES | 2010-01-01

Producing Profile and Lead Modifications in Threaded Wheel and Profile Grinding

Modern gearboxes are characterized by high torque load demands, low running noise and compact design. In order to fulfill these demands, profile and lead modifications are being applied more often than in the past. This paper will focus on how to produce profile and lead modifications by using the two most common grinding processes—threaded wheel and profile grinding. In addition, more difficult modifications—such as defined flank twist or topological flank corrections—will also be described in this paper.
INDUSTRY NEWS | 2006-04-11

Norton’s New Gear Grinding Wheels Increase Life of Parallel Axis Spur Gears

The new BRGg VPHS high speed grinding wheels from Saint Gobain are designed to reduce cycle times by increasing metal removal rates. The ...
INDUSTRY NEWS | 2006-04-06

New Depressed Center Wheels Introduced by Camel Grinding Wheels

CGW-Camel Grinding Wheels has introduced Fast Cut Series Aluminum Oxide Type 27 Depressed Center Wheels with N-grade bond for right angle...
FEATURE ARTICLES | 1998-03-01

New Guideless CNC Shaper for Helical Gears

Product announcements so often trumpet minor, incremental advances with works like "revolutionary" and "unique" that even the best thesaurus can fail to offer a fresh alternative to alert the reader when something really innovative and important is introduced. In the case of Mitsubishi's new CNC gear shaper, the ST25CNC, both terms apply.
TECHNICAL ARTICLES | 1995-07-01

Gear Grinding Comes of Age

In the quest for ever more exacting and compact commercial gears, precision abrasives are playing a key production role - a role that can shorten cycle time, reduce machining costs and meet growing market demand for such requirements as light weights, high loads, high speed and quiet operation. Used in conjunction with high-quality grinding machines, abrasives can deliver a level of accuracy unmatched by other manufacturing techniques, cost-effectively meeting AGMA gear quality levels in the 12 to 15 range. Thanks to advances in grinding and abrasive technology, machining has become one of the most viable means to grind fast, strong and quiet gears.
TECHNICAL ARTICLES | 1993-11-01

CBN Gear Grinding - A Way to Higher Load Capacity

Because of the better thermal conductivity of CBN abrasives compared to that of conventional aluminum oxide wheels, CBN grinding process, which induces residual compressive stresses into the component, and possibly improves the subsequent stress behavior. This thesis is the subject of much discussion. In particular, recent Japanese publications claim great advantages for the process with regard to an increased component load capacity, but do not provide further details regarding the technology, test procedures or components investigated. This situation needs clarification, and for the this reason the effect of the CBN grinding material on the wear behavior and tooth face load capacity of continuously generated ground gears was further investigated.
INDUSTRY NEWS | 1993-07-01

Gear Tip Chamfer and Gear Noise; Surface Measurement of Spiral Bevel Gear Teeth

Could the tip chamfer that manufacturing people usually use on the tips of gear teeth be the cause of vibration in the gear set? The set in question is spur, of 2.25 DP, with 20 degrees pressure angle. The pinion has 14 teeth and the mating gear, 63 teeth. The pinion turns at 535 rpm maximum. Could a chamfer a little over 1/64" cause a vibration problem?
TECHNICAL ARTICLES | 1992-07-01

Grinding of Spur and Helical Gears

Grinding is a technique of finish-machining, utilizing an abrasive wheel. The rotating abrasive wheel, which id generally of special shape or form, when made to bear against a cylindrical shaped workpiece, under a set of specific geometrical relationships, will produce a precision spur or helical gear. In most instances the workpiece will already have gear teeth cut on it by a primary process, such as hobbing or shaping. There are essentially two techniques for grinding gears: form and generation. The basic principles of these techniques, with their advantages and disadvantages, are presented in this section.
TECHNICAL ARTICLES | 1991-01-01

Influence of CBN Grinding on Quality and Endurance of Drive Train Components

The merits of CBN physical characteristics over conventional aluminum oxide abrasives in grinding performance are reviewed. Improved surface integrity and consistency in drive train products can be achieved by the high removal rate of the CBN grinding process. The influence of CBN wheel surface conditioning procedure on grinding performance is also discussed.
FEATURE ARTICLES | 1986-05-01

A Wheel Selection Technique for Form Gear Grinding

Until recently, form gear grinding was conducted almost exclusively with dressable, conventional abrasive grinding wheels. In recent years, preformed, plated Cubic Boron Nitride (CBN) wheels have been introduced to this operation and a considerable amount of literature has been published that claim that conventional grinding wheels will be completely replaced in the future. The superior machining properties of the CBN wheel are not disputed in this paper.
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