Gears today: between customer specifications, standards and technical data management
Gear customer specifications now matter at least as much as the technical drawing, and in many cases they matter even more. Have you ever had a gear that was perfectly compliant with the drawing, yet [...]
Why a gear prototype costs so much (and why it is often the cheapest choice)
A gear prototype is one of those situations where the perceived cost often does not match the technical reality behind the work required. When buyers or project managers receive a quotation for a [...]
When surface roughness determines the life of a component
Surface roughness may seem like a secondary detail when analyzing a mechanical component, but in some cases it is exactly where the fatigue life of that component is decided. It is a parameter often [...]
Gear coverage is often the invisible variable that determines whether a transmission will be silent or not. There are gear pairs that work perfectly on paper, and then, as soon as they start rotating, [...]
Why some gears shine (and why this is not just aesthetics)
Gear superfinishing is immediately recognizable: the surface looks almost chrome-plated. Sharp reflections. Mirror-like appearance. A sense of perfection.But that shine is not cosmetic. It is the [...]
In the world of precision mechanics there’s an almost religious belief: the tighter a dimension, the higher the quality of the component. On the drawing that idea seems logical. On the real [...]
Double Hardening in Gears: When It Was Really Needed (and Why It's Almost Never Used Today)
Double hardening in gears was a common practice for many years, especially between the 1970s and 1990s, in the heat treatment cycles of case-hardened components. Over time, however, this approach has [...]
“3.1 or 3.2? The tiny number that changes everything” (and that many quote without really understanding what it means)
In the mechanical transmission industry, we often talk about hardness, microstructure, concentricity, and noise. But there’s another phrase that comes up more and more — especially in [...]
Why some gears must not be magnetic: the not-so-obvious case of residual magnetism
In mechanical transmission, we often talk about hardness, microstructure, concentricity or noise. Much more rarely do we address a quieter, invisible, often underestimated phenomenon: residual [...]
From design to prototype: how a custom gear is created in 6 weeks
Making a custom gear is an activity that requires method, vision, and synergy. It is never a linear or standardized process. Every project has its own complexities, constraints, and variables. Yet, [...]
When the problem isn't "making a part," but making it work better
In our work, the true goal is not just to produce a specific component, but to understand how to make the entire system in which that component lives function better.More and more often, we encounter [...]
Goodbye flames, hello vacuum: the LPC revolution for cleaner and more stable gears
LPC for cleaner gears is no longer a niche solution but a strategic choice for manufacturers seeking dimensional precision and production consistency.When we think about heat treatment, flames and oil [...]
What’s the difference between DIN 5482 and DIN 5480 — and why can it directly impact the efficiency and durability of your mechanical transmissions?
When it comes to the shaft–hub connection, every detail matters. This seemingly simple interface plays a critical role in transmitting torque while ensuring proper centering, assembly accuracy, [...]
For decades, gear shaving has been considered an almost mandatory step after hobbing or shaping to improve the quality of cylindrical gears.Today, however, the question is more pressing: does it still [...]
Helical bevel gears need to get to know each other before they can function effectively. This question alone sums up the secret of running-in, an often invisible but crucial phase in the bevel gear [...]
From Product to Process: What Makes a True Partner
In a market where many know how to “make the part,” the real value no longer lies in the product alone but in the process behind it. A gear with the correct geometry is now almost a given. [...]
The Ideal Profile Is No Longer Enough: How to Really Know Where to Correct a Gear Tooth
How do you know where to correct a gear tooth — and by how much? For decades, gears have been designed with ideal profiles: symmetrical, clean, theoretically perfect. But real-world conditions [...]
That Invisible Detail That Saves a Gear: Tooth Crowning
Have you ever considered that a nearly invisible curve on a tooth flank could be the key to whether a gear works silently and reliably — or fails under stress? That’s why tooth crowning is [...]
The Importance of Choosing the Right Gear Cutting Process
When it comes to gears, most discussions focus on module, strength, or tolerance. But there’s another crucial — and often underestimated — aspect that can determine whether a gear [...]
Cataphoresis galvanic treatments for metal protection
Have you ever wondered how to effectively protect your metal components from corrosion, even with the most complex geometries? Cataphoresis galvanic metal protection treatments are one of the most [...]
How to ensure transmission gear protection from rust?Do your transmission gears work outdoors, exposed to rain, humidity or salt spray? Then transmission gear protection from rust is a topic you [...]
How do you reduce gear noise? Breaking the symmetry
Have you ever wondered how to reduce gear noise in hybrid drive systems? The answer might surprise you: break the symmetry.In the automotive sector, especially in hybrid traction systems with electric [...]
Rebuilding a Sun Gear Without a Drawing: How to Restore an Unavailable Component
Have you ever faced downtime because of a single missing part, with no technical drawings and no replacement on the market?Rebuilding a sun gear without a drawing is a complex challenge—but [...]
Process Capability: the compass of quality in modern manufacturing
Do you know how much you can trust your production process before you even turn on the machines? Process Capability is the compass of quality in modern manufacturing, especially in the gear industry [...]
Mass production of 3D printed gears: challenges and future
Is 3D gear mass production a viable option today?3D printing has transformed prototyping in recent years, but the move to 3D gear mass production still poses many challenges. This is a crucial [...]
Drallfrei: Micro-helices and the risk of fluid loss
Have you ever wondered why some seals fail even when the component seems perfectly machined?The Drallfrei phenomenon could be the hidden cause.
What does Drallfrei mean?
"Drallfrei" literally means [...]
The magic formula to predict the evolution of prices as volumes increase
There is an empirical law that allows you to estimate how production costs change as the volumes produced vary: Wright's Law. Introduced in 1936 by aeronautical engineer Theodore Wright, this law [...]
The secret of hardness: is nitriding itself enough?
Have you ever had problems achieving the desired hardness after a nitriding treatment? If you think that just carrying out the process will get 700 HV on a steel like 42CrMo4, you might be [...]
Have you ever wondered how to ensure the durability and high performance of mechanical gears? Double hardening may be the answer
Double hardening is an advanced technology in the heat treatment of gears. This process significantly improves the wear resistance and toughness of the core, surpassing the limitations of traditional [...]
Laser hardening for gears: innovation and advantages
Have you ever wondered how laser hardening can improve the performance of your gears? This advanced technology has revolutionized heat treatment, bringing numerous advantages over traditional methods. [...]
Optimization of heat treatments in gears: nitriding and localized induction hardening
Have you ever wondered how to achieve maximum wear resistance in a gear after heat treatment? A recent project of ours provides a real example, where we combined nitriding and localized induction [...]
What makes long addendum gears so special?Gears are essential components in many machines and tools we use every day, from bicycles to car engines.
What are Long Addendum Gears?
They are designed [...]
Residual magnetism in gears: what it is and why it matters
Have you ever heard of residual magnetism in gears without knowing exactly what it is? This article introduces the concept of residual magnetism, explaining where it comes from, the potential damage [...]
Process FMEA analysis: failure prevention in gear industry
You will surely have been thinking about how to maximize quality and minimize risks several times, without having a precise answer. The adoption of the FMEA process analysis tool is the answer to this [...]
A simple guide to PPAP: what it is and how it works in the gear industry
Have you ever thought about how the gear industry maintains high standards of quality and compliance? At the heart of this process you will find the PPAP, or “Production Parts Approval [...]
Power Skiving: revolutionizing gear manufacturing with cutting-edge technology
Have you ever wondered how the power skiving technology behind the production of high-precision gears impacts today's mechanical manufacturing? Power skiving establishes itself as a cutting-edge [...]
ChamferCut: innovation in the chamfering of mechanical components
In the vast universe of mechanical manufacturing, how do we address the crucial challenge of innovating in the chamfering of mechanical components to ensure their quality and safety? The ChamferCut [...]
Gears coupling: an analysis of materials and their combinations
Gears coupling with different materials offers many opportunities to optimize the performance of motion transmission systems. The choice of gear materials is essential to ensure optimal performance, [...]
Ion nitriding: technological innovation to improve gear performance
Ion nitriding is an innovative process in metallurgy that has revolutionized gear manufacturing, offering significant improvements in their performance and durability. In this article, we explore what [...]
Gear polishing: for optimizing transmission performance
In mechanical engineering, gear polishing represents the pinnacle of precision for perfecting transmissions. This article delves into the delicate polishing process, revealing how to optimize toothed [...]
K profile in gears: how to maximize performance in 2024
The K profile is today's focus, it is a crucial element for optimizing mechanical performance.It's about much more than just a label. We can define it as the ideal geometry that the gear teeth should [...]
Protecting gears from corrosion: GEOMET 321 coating as an effective solution?
Today we are talking about corrosion, an element that is a constant threat to gears, because their life and performance are at risk. In this context, the revolutionary GEOMET 321 coating comes to our [...]
With today's article we want to talk to you about the control of the geometric profile in the technical specifications of industrial products.Profile checking is a practice widely adopted in technical [...]
In the complex world of spur gear manufacturing, the choice of hob size plays a crucial role.Here are some key factors to consider when choosing a maker:Cutting speed and feed: The cutting speed and [...]
In the world of gears, prototyping proves essential to evolve and validate designs, requiring speed without compromising precision. EDM is the answer if you also have projects of this type. Using this [...]
Hard chrome plating in toothed shafts: a technical study
Gears, fundamental elements in machinery, require a resistant surface to ensure efficiency and durability. Thick chrome plating, a galvanic process that deposits a layer of chrome on the toothed [...]
Hard chrome plating in toothed shafts: a technical analysis
Gears, fundamental elements in machinery, require a resistant surface to ensure efficiency and durability. Hard chrome plating, a galvanic process that deposits a layer of chrome on the toothed [...]
Guarantee of quality and reliability with non-destructive testing of the gears
In the fascinating world of mechanical engineering, non-destructive testing (NDT) represents a fundamental cornerstone in gear manufacturing and analysis. These checks, used to evaluate the quality [...]
Tired of non-conformities? The contact ratio plays an important role for gears
Imagine a customer complaining because of the noise of his mechanical transmission system, coming to us for support. This is what happened a few days ago, after an in-depth technical analysis we [...]
Involute meters are vital tools in the gear industry, they were developed during 19th century, revolutionizing mechanical manufacturing through the standardization of the measurement of the geometric [...]
Micro-dents on gears: causes, effects, and prevention strategies
Gears play a fundamental role in various industrial applications, but even the tiniest surface imperfections, known as micro-dents, can have a significant impact on their efficiency and [...]
Molykote® coating: innovative solutions in gear industry
In the gear industry, the quest for innovative solutions to enhance component performance and durability is constant. One of the treatments that has proven to make a difference is molykote® [...]
Gears: How to choose the right material for your project in 2023
The choice of production materials is a critical phase in the realization of any project, especially when it comes to prototypes or new products. For this, today we delve into selecting the right [...]
Undercut management in gears: challenges and solutions for the engineering industry in 2023
In gear engineering, the concept of undercut emerges as a crucial but sometimes little-known element. Today we really want to shed light on this element and how it can affect the performance of the [...]
Precision and reliability are extremely important in the world of gears; even the tiniest defect can have a substantial impact. Micro-pitting play a pivotal role in the integrity and performance of [...]
Cleaning of mechanical components: procedures and advantages
Often underestimated, the cleaning of mechanical components is a fundamental process to ensure maximum efficiency, reliability, and longevity of mechanical systems. By removing unwanted particles and [...]
Non-compliance: an opportunity to improve and build customers loyalty
Non-compliance can be turned into an opportunity for growth and learning, instead of being a challenge for many business. By dealing with these situations in a proactive and corrective way, it is [...]
Herringbone gears: characteristics and applications
Herringbone gears are a type of spur gear with teeth arranged in a "V" shaped profile. These are also named double helix or double helical gear and are widely used in various industries.
What are [...]
Gear deburring and chamfering: Improved quality and performance
In today's article we want to address the topic of gear deburring and chamfering. These are critical to ensure component quality and performance. Their function is to remove imperfections, burrs and [...]
Marking: the new frontier with the DataMatrix Code
Gears marking is a fundamental process to uniquely identify and provide essential information about parts' characteristics. This practice is done by engraving or stamping letters, numbers or symbols [...]
Preventive maintenance of gears: effective strategies to extend their life
Preventive maintenance is critical to ensure long life and optimum gear performance. Implementing effective maintenance strategies can prevent costly breakdowns, reduce downtime, and optimize the [...]
Gears burns: how to detect, prevent and ensure quality
TToday we analyze burns, a common problem in ground gears. These compromise its quality and performance. Let's have a look to how to identify, treat and prevent them.
How do gears burns [...]
Residual stresses: how to mitigate them to guarantee the quality of the machined parts
Residual stresses are a common phenomenon that can occur during machining processes. The internal ones remain in the material after being subjected to processes such as turning, hobbing or shaving. [...]
Plastic gears are gaining more and more popularity as an alternative to traditional metal gears. Today we want to tell you about the opportunities offered by the production of plastic gears, the [...]
Tip Relief: Material removal to reduce wear and noise in gears
The most common problem we have often talked about in other articles is to improve the performance of the gears in the projects of the customers who rely on us. Today we talk about tip relief, a [...]
Polisch Grinding: definitive guide to improve strength and durability of gears
Today we talk about Polisch Grinding, a surface finishing technology used to reduce the friction of gears and increase the contact ratio of the gear surfaces. The process is performed as a final [...]
Bevel gears: advantages and disadvantages of using them
Today we talk about hobbing and specifically about bevel gears. These are very important elements for the correct functioning of transmission parts. Like any component, it can present various problems [...]
Shot peening: the solution to wear problems in gears
Today we would like to talk about a new topic linked to a very important finishing process such as shot peening. This technology helps improve the strength and life of the gears. Thanks to the [...]
Equipment management: the importance of an in-depth study
Equipment management is a crucial aspect for any company operating in sectors that require mechanical or industrial production. Piece gripping equipment is essential for the success of a project, and [...]
Did you loose the drawings of your helical gears? Let's see how to solve this problem in 2023
As manufacturers of helical gears, we often receive requests from our customers to produce parts with incomplete drawings. In these cases, detecting the geometry of the tooth can be very complicated [...]
Satellite for medium-large power reducers: how it works and how it is built
Today's article is inspired by a piece we are dealing with these days and I take this opportunity to talk about its features and how it is built to ensure efficient and silent operation. We are [...]
Thermal treatment of nitriding: characteristics and applications
Nitriding is a heat treatment that is performed on some types of steel to improve their resistance to fatigue and wear. Today, we will explore the specific characteristics of nitriding, the reference [...]
Gears for the gear motor department: the importance of quality
The gears are fundamental elements for the operation of the gearmotors and their quality directly affects the performance and life of the system. The quality of the gears depends on several factors, [...]
As you know GSI specializes in bespoke gears for industrial projects and today we are talking about induction hardening. It is one of the heat treatments we offer to ensure maximum hardness and wear [...]
Radial Oscillation: How to deal with noise problems in gears
Today we go back to talking about gear noise and we do it through radial oscillation. This is the radial position difference of a measuring ball between successive teeth. That is, it means that during [...]
GEAR PROPELLER CROWNING: How to deal with gear noise in 2023
We start the new year with the intention of giving you more and more interesting and useful information to better understand the technical complexity behind the gears. Today we are talking about [...]
How to understand the main involute values shown on the control chart
Understanding the main involute values shown on the control chart is essential to be able to prevent possible problems on series production. From the graph we can also identify the main errors or [...]
Straight-toothed and involute gears are certainly the ones that are mostly used in the projects that are entrusted to us every day. The former are used to transmit power between parallel shafts. While [...]
Straight-toothed and involute gears are certainly the ones that are mostly used in the projects that are entrusted to us every day. The former are used to transmit power between parallel shafts. While [...]
Gears correction: y-type, k-type, tip relief and semi topping
The topic of gear correction is among the hottest topics in our work. We recently received a request for a project where breakage and noise issues were repeating over and over again. The idea from [...]
Gears with involute profile have the peculiarity that motion transmission takes place between two conjugated profiles which exchange normal forces, except for small friction components. In a much less [...]
Measurement is an essential theme for the work of building custom gears. In particular, we want to tell you about a recent experience we have had, which has led us to reflect on the importance of [...]
FMEA (Failure Mode and Effects Analysis) is a fundamental tool in the engineering field, which allows you to analyze and prevent possible problems that could arise in a project. In a previous article [...]
The Beveloid gear is a helical cylindrical gear with non-parallel axes but inclined up to 15°, for this reason it is very useful to apply them when a slight inclination of the axis of use is [...]
Worm gear crown: all its particularities and how to control it
The worm gear is a very particular gear to be treated, in fact, not being regulated by law, each manufacturer has its own control specifications. You will understand well that therefore we are dealing [...]
Abnormal breakage of the crown for worm gearbox: here's how to solve the problem
We recently had to manage a very complex problem for one of our customers who produces worm gearboxes. The problem to manage was the breaking of the plastic crown of the initial project. The customer [...]
Find out how to reduce the roughness on the profile of the gears and save the lot you owe by now for lost!
We often have to work on new projects and sometimes it can happen that we are faced with problems that are difficult to solve as in this case. It recently happened to us that a gear for the [...]
Shot peening: how a surface finish can avoid fatigue stress cracking
The mechanical components are subject to atmospheric agents that wear them out. For this reason, a heat treatment usually comes into play to strengthen the piece. If you remember a while ago we talked [...]
Reverse engineering: we bring your unique pieces back to life
Why would you want to scrap a machine that could potentially still work for a broken gear? Surely there are many reasons to do it, but so are the reasons that push us to analyze this week's case [...]
Find out how to reduce the roughness on the profile of the gears and save the lot you owe by now for lost!
Often we have to work on unpublished projects and sometimes it can happen that we are faced with problems that are difficult to solve as in this case. It recently happened to us that a gear for the [...]
Are you wondering why to carry out a statistical quality and process capacity check? I have the right solution for you ...
The final control and validation phase of the production process is one of the most critical of all prototyping. How many times does the salesman have the pressure of the customer who wants the pieces [...]
Gear deformation: the most frequent causes and the most useful solutions
Certainly, deformations are the worst enemy of gear manufacturers because in the worst case they lead to declare the piece scrap or even the whole lot. Recently, it happened to us that a shaft [...]
FMEA: an effective strategy to improve your control processes by optimizing time and resources
You have surely heard of FMEA and perhaps many of you have already implemented it for years. However, it seems interesting to me to address the issue to give you food for thought on how to optimize [...]
Cracks from gear grinding? Practical tips for managing control
Managing grinding cracks or better known overheating cracks is the order of the day for all of us gear manufacturers. To be honest it is also one of the most critical situations to be dealt with both [...]
Guide to the optimization of production with power skiving
Surely one of the Achilles' heels of business is productivity and the question of every entrepreneur is how to optimize it at best?Often in this period we have experienced intense delays due to the [...]
Guide to managing non-compliance: how to turn it into an advantage for your company?
Having to manage a non-compliance is always a very delicate moment, it often generates discontent in the customer. But, what if I told you that there is a way to turn a stressful situation into an [...]
How do you repare a broken gearbox without spending a fortune?
Repairing a broken gearbox without spending a fortune is not impossible, very often the parts which break are the internal gears. So why not just change those instead of buying back the whole [...]
Gears for acricultural machinery: which direction is the market taking?
Lately, we hear a lot about the future of agricultural machinery gears and the direction in which the market is heading. From the end of 2020, the recovery scenario is clear. According to Machinery [...]
Gears: are small and medium series always a disadvantage?
It is often believed that working on a small scale is not very profitable or disadvantageous, but in reality it is not always said, especially in the field of gears where the projects are varied and [...]
What does it mean to communicate with B2B or B2C? Communicate [intransitive, transitive] to share or exchange information, news, ideas, feelings, etc. (See Oxford Dictionary)Starting from this [...]
Walking through the production sheds of most of the small, medium and sometimes even large companies, you can see the machines 'of the past', which make you smile a little, especially when combined [...]
Spare partsfor old machine tools, earthmoving and construction machines
The world of spare gears for old machine tools, earthmoving and construction machines is an increasingly recurring and important issue for all those who work in the field of mechanics. Buying a [...]
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