Get All Your Gear Polishing Equipment from Inovatec Machinery
  • Automotive gear, industrial machine gear, and all other gear polishing
  • A wide variety of mass finishing solutions
  • Top of the line media for best results
  • Very cost-effective and modern equipment
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Inovatec MachineryThe Only Leader in Gear Polishing Equipment Manufacturing.

Inovatec Machinery is at your service with over 20 years of experience in the mass finishing industry. We make the best equipment to suit your polishing needs.

If you’re in need of a mass finishing solution for gear polishing, you’re in the right place.

3. VBB vibratory debruring machine 2

These round bowl vibratory finishers are the most popular mass finishing equipment from Inovatec. You can deburr, polish, clean or burnish a variety of parts. It’s a prime choice for gear polishing.

1. centrifugal barrel machine with automatic unloading

Centrifugal machines work very efficiently thanks to the modern design and intricate physics behind them. These machines are able to finish large batches in no time.

4. Centrifugal disc finishing machine 1

Centrifugal disc finishing machines use the same principle as the barrel finishers. The difference is that they use a barrel instead of a disc. These machines are fast and efficient as well.

1. drag finishing machine

Drag finishing machines are a wonder of modern science. They have changed the dynamic of the mass finishing industry. They are perfect if you work in high volume and have a tight deadline on your gear polishing.

Material of Different Propeller

Gears are the driving force of any machine. Anyone who has the slightest idea about how a machine works knows the importance of gears. Especially in automobiles, gears are the connecting elements between other components.

To polish automotive gears, you can go with any of the vibratory or centrifugal solutions from Inovatec. Gears are small parts so they suit all machines.

Bicycles use the fundamental principle of gear ratios to work. Bicycles have one large gear in the front and one or more in the rear. These gears have to be polished properly before installation.

If you’re looking for a cost-effective solution, you can stick to the vibratory finishing machines from Inovatec. But if you have the budget and work in high volume, we suggest investing in a centrifugal or drag finishing machine.

Engines have a lot of gears connecting different parts. The power is distributed with help from the gears. It’s a requirement to polish the gears to eliminate any power loss.

Engine gears usually come in different sizes. You can use a centrifugal disc finishing machine for faster results.

If you’ve seen the inside of a gear shaft, you’ll notice gears of different sizes. All of them don’t rotate at the same speed. Some of them rotate faster while some of them rotate slower. The slow ones are called reduction gear.

Reduction gear polishing is similar to other gear polishing. Go with a vibratory or centrifugal finisher.

Tractors are an integral part of agriculture. The tractors utilize a lot of gears to work efficiently. The gears have to be polished as well. Usually, tractor gears are larger in size.

It’s best that you stick with a vibratory bowl solution for perfect results.

There are not many jobs as fine as polishing watch gears. Watch gears are very precise. They have to show the accurate time. So, there is a need for high accuracy in polishing these gears as well.

The drag finishing machine is the perfect choice for watch gear polishing. We don’t recommend using regular vibratory finishers as you have the risk of damaging gears.

Gear Polishing Media

For all kinds of metal polishing, we recommend using either high-density media, porcelain media, or plastic media. As for gear polishing, you can use any of the aforementioned media. But if your parts require any specialized media, we can provide that as well.

Inovatec Machinery – The Best Gear Polishing Machine Manufacturer in China
  • All kinds of gear polishing at a minimal cost
  • Finish large batches in very little time with centrifugal machines
  • Can polish in both wet and dry methods
  • State-of-the art support and equipment warranty
Frequently Asked Questions
1. Which gear polishing machine do I need?

Answer: It depends on what kind of gears you polish. If you operate on an industrial scale and polish all types of gears, it’s best that you go for a centrifugal or drag finishing machine.

2. How can I buy one?

Answer: You can get a quote instantly from our website. You’ll get the details in the quotation.

3. What media should I use for gear polishing?

Answer: In general cases, we suggest using porcelain and plastic media. The size and shape are very important.

4. What is the minimum requirement for ordering?

Answer: There are no requirements per se. We request you to pay 30% of the price in advance to confirm your order and pay the remaining balance before delivery. You can order at least one machine. You are also welcome to come to our factory to check the machine’s quality.

5. How much power do I need to run a gear polishing machine?

Answer: Anything with a 3-phase connection is good as long as it’s not below 230 Volts.

Gear Polishing – Definitive Guide

1.  How Do You Optimize Vibratory Performance During Gear Polishing?

Improving the efficiency of vibratory machines in the gear polishing process is key and essential to achieving a satisfactory work-piece finishing. Here are some of the techniques to look into:


1.1 Media Volume in Vibratory Bowl

In the vibratory gear polishing process, the use of tumbling media is essential.

It helps to achieve and maintain a consistent and quality surface finishing on gears.

It is, therefore, essential to take cognizance of the volume of media in the vibratory bowl before initiating a cycle.

ceramic media volume


As a general rule, media volume in a vibratory bowl must always be two (2) inches below the outer diameter of the bowl’s rim.

At no point should your vibratory finishing machine run with a media mass that is below standard specifications.

Fewer media may result in process inefficiencies.


1.2 Choice of Vibratory Media

The choice of media (as per size, shape, abrasiveness, density, etc.) is an important factor for any mass finishing operation.

In this case, the abrasiveness of the media is a key ingredient in optimizing the performance of your vibratory machine.

Figure 2. Choice of Media


In general, not so abrasive media is advisable; while for isotropic finishing, the choice of media has to be non-abrasive and of high density.

The lesser abrasive the media, the lower the degraded media deposits obtained at drains, and the lower the attrition rate of the media.

In other words, a less abrasive media retains its shape and size for much longer than a more abrasive media.

The form retention factor of the media becomes advantageous in applications where contact is essential for specific locations on the gear part.


1.3 Utilization of Sound Covers

When sound reduction is desired, sound covers are the best option.

It is imperative to note that sound covers inhibit the dissipation of heat when in place.

Figure 3. Vibratory Finisher with Sound Cover


When covers are used, it is essential to increase the flow rate of liquid into the process to replace fluid loss by evaporation.


1.4 Regulate Motor Speed, Reduce Impingement

During a processing cycle, vibratory finishers with ramped-bottom bowls separate parts and unload them at the end of each cycle.

However, during the unloading phase, the chances of part-on-part contact are high.

Vibratory bowls with a motor inverter or speed potentiometer offer the option to tweak the motor speed.

Maximum allowable motor speed is often rated 60Hz, but during the unloading phase, it’s more advantageous to reduce the speed to 47-50 Hertz.

This action will help minimize part-on-part contact and the likelihood of parts going across media separation decks.

Figure 4. Gear-Media Suitability


1.5  Ascertain the Integrity of Drains

Compromised drainage and a clogged and wrongly positioned drain tubing can cause liquid leaking around your equipment.

Liquid leaking can compromise the efficiency of your vibratory finishing machine during the gear polishing process.

To ensure the integrity of your machine’s drainage system, take away the content of its vibratory bowl, and cover all holes clean.

To achieve a better fluid drainage mechanism, you could also replace the drain tubing with new ones if needed.

The design of a drain tubing will require that it flows under gravity through its entire span to a sump.

If you observe deviations, ensure to put the tubing configuration in order.

Likewise, long stretch tubing is not uncommon but it’s advisable to make the drains as close to the equipment as practicable.


2. Which Media Is Suitable for the Gear Polishing Process?

In General, we recommend the use of plastic or porcelain media for several types of metal polishing.

More specifically, either plastic or porcelain media is suitable for the gear polishing process.


3. What Are the Benefits of Gear Polishing?

The benefits of the gear polishing process include the following:

  • Increased Gear Efficiency
  • Reduced Surface Roughness, Friction, and Wear
  • Improved Gear Durability
  • Improved Corrosion Resistance
  • Reduced Core Roughness
  • Reduced Lubrication Cost and Requirements
  • Improved Resistance to Grey Staining or Micro Pitting
  • Improved Resistance to Galling or Scuffing
  • Improved Resistance to Bending and Contact Fatigue
  • Reduced Noise and Vibration


4. What Type Of Gear Can Undergo Polishing?

4.1 Bicycle Gear

Bicycles have both front and rear gears, and their functionality depends on the principle of work-to-gear ratio.

Hence, bicycle gears have to be adequately polished using a vibratory, centrifugal, or drag finisher from Inovatec, as the case may be, before installation.

Figure 5. Bicycle Gear


4.2 Watch Gear

Watches have to tell time accurately, hence, there’s a need for a precise and high accuracy gear polishing process.

In this case, a drag finisher does the best job and does not inflict any sort of damage on the gears.

Figure 6. Watch Gear


4.3 Reduction Gears

Reduction gears can be found inside gear shafts, and they are known to rotate more slowly than other gears.

To achieve adequate polishing, a centrifugal or vibratory finishing machine may be used.

Figure 7. Reduction Gear


4.4 Tractor Gear

Tractors are essential to agricultural activities, and they utilize numerous gears to function effectively and efficiently.

Generally, tractor gears are always massive, and they also require polishing using vibratory finishing equipment.

Figure 8. Tractor Gear


4.5 Automotive Gear

In automobiles, gears serve as the connecting element for several components.

Automotive gears can be polished with either a centrifugal or vibratory finishing machine from Inovatec.

Figure 9. Automotive Gear


4.6 Engine Gear

Generally, engines have numerous gears (in different sizes) connecting several parts, and likewise, helping with power distribution.

To ensure that there are no power losses, engine gears can be polished with a Centrifugal Disc Finisher.

Figure 10. Engine Gear


5.  What Is Gear Polishing?

Gear polishing gets rid of jagged edges of gears to enhance corrosion resistance, improve surface appearance, and reduce wear and fatigue failures.


Gears are sophisticated components with carefully engineered profile tolerances and micro-geometries.

Too much polishing can cause problems, hence, polishing of gears has to be done appropriately.


6. How Is Gear Micro Polishing Achieved?

Gear micro polishing is largely considered as the best thing that can happen to gears.

To achieve micro polishing, gears are subjected to a gentle polishing process that uniformly eliminates stress concentrations.


Micro polishing ensures less friction, lower heat generation, and improved fuel economy by polishing areas where gears contact other parts.

Some benefits of gear micro polishing include:

  • Reduced contact fatigue and less wear
  • Increased efficiency and power output
  • Improved power density
  • Improved resistance to bending fatigue
  • Reduced maintenance and lubrication

7.  What Are the Major Equipment That Can Perform Gear Polishing?

The following polishing machines are good for superfinishing gears:


7.1 Drag Finishing Machine

Drag finishers are often regarded as a wonder of modern-day science.

They have successfully influenced the dynamics of operation in the mass finishing industry.


If you are working on high volume gear polishing, and you have strict production deadlines, Inovatec Drag Finisher is your go-to equipment.


7.2 Centrifugal Barrel Finisher (CBF)

A CBF is a high-energy and high-speed machine used by gear manufacturers to improve the endurance and surface finish of gear sets.


This machine boasts an efficient, modern, and intricate design, and is suitable for polishing gears in large batches.

Centrifugal Barrel Finishing Machines (CBFMs) can complete gear polishing cycles in no time at all.


7.3 Centrifugal Disc Finisher

The working principle of a Disc Finisher is similar to that of a Barrel Finisher, but instead of a barrel, discs are used instead.

Inovatec Centrifugal Disc Finishing machines are efficient, effective, and quick to complete gear polishing cycles.


7.4 Vibratory Finisher

Out of all the mass finishing machines manufactured by Inovatec, Vibratory Finishers have gained a lot of popularity because of their diversity.

Vibratory Finishing Machines can be used to achieve burnishing, deburring, and polishing operations for several workpieces.

For gear polishing operations, this machine is a prime choice for manufacturers and operators.

Vibratory finishers are often used for engine components (crankshafts and camshafts), as well as automotive gear systems.

Racing teams often turn to this machine to acquire high-performance benefits for their automotive systems.

Now you know how to polish transmission gears using Inovatec gear polisher machines.

You can invest in any of these machines for super polishing gear parts.

8. What Are the Benefits of Isotropic Gear Polishing?

Isotropic gear polishing is a process that eliminates small imperfections caused by machining from the surface of gears.

In other words, isotropic polishing creates a consistent and uniform finish on the surface of gear sets.

The isotropic finishing equipment makes use of the isotropic finishing media along with isotropic finishing chemicals for the super finish process.

The benefits of the isotropic superfinishing process include:

  • Elimination of machine marks and surface stress
  • Gear root and teeth smoothing
  • Elimination of undesired stress concentrations
  • Mirror-like surface finish
  • Improved heat transfer and lubrication retention
  • Reduced noise, vibration, and friction
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