25+ Years Experience

GEAR HOB CUTTER MANUFACTURER

● With 20 years+ of experience, we not only own factory, but also in close cooperation with other domestic factories, to delivering solutions across all industries and markets.
● Ejtools gear hob cutter's quality is impeccable. Our products cover a wide range and have been awarded many qualification test certificates.
● Our products are cost-effective and sold direct from the factory, and we have extra discounts for new customers.

GEAR HOB CUTTER

CAN'T FIND IDEAL GEAR HOB CUTTER FOR YOUR NEEDS?

SOURCING GEAR HOB CUTTER FROM EASY JOINT

  For Gear Hob Cutter Wholesalers

We have worked with different businesses taking their ideas from conception to fulfilling their desired gear hob cutter solutions. We walk the journey with you to ensure that we help you better define what you want and realize your brand’s perfect gear hob cutter solutions.

  For Gear Hob Cutter Manufacturers & Suppliers

Our in-house modern production plant allows us to offer great quality gear hob cutter options to appeal to your target customers. As a manufacturer or supplier, you can trust that our streamlined manufacturing processes are here to provide you with the best gear hob cutters in the market.

  For Gear Hob Cutter Distributers

Being one of the most equipped gear hob cutter manufacturing companies, we offer the best quality gear hob cutters at a significantly low cost. This allows us to work with you to ensure that you get to also extend great prices to your customers.

WHAT IS GEAR HOBBING CUTTER?

Hob is a gear cutting tool with teeth arranged in a helical line along a cylinder or cone. Used for processing cylindrical gears, worm gears and other cylindrical workpieces with teeth according to the spreading method (Gear Processing). According to the different uses, hob is divided into gear hob, worm gear hob, non-involute spreading hob and fixed hob and so on.
The process of machining external meshing straight and helical cylindrical gears involves the use of commonly used tools. The hob, which is equivalent to a helical gear with a large helix angle, is used during the machining process. The number of teeth on the hob corresponds to the number of heads, and the workpiece is equivalent to another helical gear. The two gears mesh in space with a fixed speed ratio rotation. The gear tooth shape is formed by sequentially cutting the adjacent position of the knife teeth into the teeth envelope. This process requires a high level of precision and expertise, which our team possesses with confidence. Single-headed hobs are the most commonly used type, as indicated in the thread. However, in mass production, multi-headed hobs are frequently utilized to enhance efficiency.

GEAR HOB CUTTER OPERATING PRINCIPLE

When the hob turns, the gear turns one tooth around its own axis; when the multi-headed hob turns, the number of teeth turned by the gear is equal to the number of heads of the hob. Worm gear hob hob in the spiral angle of less than 5 °, often made of straight chip groove, easy to manufacture and sharpening; spiral angle of the hob is often made of helical chip groove, to avoid the teeth of the side of the knife edge to a large negative front angle (see tool) cutting the adverse situation.
Small and medium module gear hob made of high-speed steel generally adopt the overall structure. Module in more than 10 mm hob, in order to save high-speed steel, to avoid forging difficulties and improve the metallurgical organisation, often used inlays structure (the right gear hob). Hob with many structural forms, often used for the set rack structure, that is, the teeth of the cutter part of the high-speed steel made of rack-shaped, heat-treated and fastened to the cutter body. Hobbing cutter made of carbide, can greatly increase the cutting speed and efficiency of cutting teeth. Integral carbide hobs have been widely used in the watch and instrument manufacturing industry to machine a variety of small modulus gears. Medium modulus solid and insert carbide hobs are used for machining cast iron and rubber wood gears. Carbide hobs with a module of less than 3 mm are also used to machine steel gears. Carbide hobs are also used to machine hardened gears (hardness HRC 50-62). These hobs are often of single tooth welded construction with a 30° negative rake angle, which shaves off a layer of the tooth surface during cutting.
What-is-gear-hobbing-cutter

WHAT ARE THE ADVANTAGES OF GEAR HOBBING?

Higher-efficiency

Higher efficiency

 

Gears are produced in large quantities in most cases, and if they are produced manually, the production efficiency is very low; if they are produced by gear hobbing cutters, the production schedule will be completed very quickly.

More-accurate

More accurate

 

In the production of gears, error is a problem that affects the quality of the product, if you produce through the gear hob and make sure that the machine is well tuned, then the production of gears is basically error-free!

More-flexible

More flexible

 

Different types of gears require different technologies to produce, and the manual way of producing different gears requires very high costs in terms of time, salutation, and technology. Gear hob to produce different types of gears need different types of gear hob, personnel need only replace different hob on it, and gear hob can be used for a long time, far lower than the cost of labour, can create more benefits.

More-versatility

More versatility

 

different gear hobs produce different types of gears and can offer different technologies, such as cycloid gears, helical gears, worm gears, ratchets, splines and sprockets (as long as you have the right tool for the job). These features are often not available in manual production.

HOW TO CHANGE A GEAR HOB CUTTER?

If you have a tool and cutter grinder that holds the arbor from the hobbing machine, simply remove the cutter arbor mandrel with the hob, sharpen the hob, recover the mandrel and continue hobbing (more or less). However, in many cases of making individual gears, you will need to change the hob.
HOW-TO-CHANGE-A-GEAR-HOB-CUTTER
Imagine you have recently replaced your rough-cut gear hob with a newly sharpened one. The challenge now is to align the new hob to zero and synchronize it with the gear you are producing.
 
To begin, it cannot be assumed that the diameter of the rough cutting hob and the finishing hob are the same, as their diameters can differ by as much as 1/8 of an inch. Therefore, the outside diameter of the hob must be reset to match the outside diameter of the gear. This can be achieved by aligning the hob tooth tip with the gear tooth tip.

To align the hob tooth tip with the gear tooth tip, the table (gear) must be movable to a position independent of the hob's indexing position. In other words, the table must be rotatable without being moved. Rotate the table (gear) until the hob teeth align with the tool tip to the number of gear teeth.

If you have operational problems when replacing the gear hob, you can contact us in time, we will find technical personnel to provide you with technical support.

EASY JOINT

Gear Hob Cutter Factory In China

Changzhou Easy Joint Import&Export CO.,LTD. is a company integrating industry and trade, its factory was established in 1999, specializing in the production of carbide rotary cutting tools, our products are widely used in automotive, machining, aerospace and some other fields.

We also have Germany, American,Japanese axis CNC tool grinder, axis CNC thread grinding machines and testing equipment, with strong R&D and testing capabilities, we have passed ISO9001-2000 quality system certification standards.
Our factory topped the China Aviation Industry Corporation Tool centralized procurement list,our products are not only famous in domestic market, but also exported to dozens contries in the world.

WHY CHOOSE EASY JOINT AS YOUR PARTNER?

Rich Experience
With more than 20 years of experience in the hardware industry, easy joint has a very clear idea of what kind of products our customers need and what kind of products are suitable for them. At the same time, we not only produce our own gear hobbing cutters, we also have other cooperative manufacturers for our customers to choose from, in which the national enterprise level manufacturers are also in our list of cooperative partners, and our own products in China and Southeast Asia, North America is also very popular. Choosing us is the same as choosing the top Alloy gear hobbing cutter manufacturer in China, welcome your inquiry.​​​​​​​
High Quality and Complete Certification
When it comes to our products, our quality is impeccable. As a manufacturer engaged in the hardware industry for many years, our products are well received all over the world. In all kinds of quality tests, our products have passed perfectly with excellent results and have been awarded many qualification test certificates. If you need gear hobbing cutters, you can contact us, and if you need other hardware products, you can also contact us. Our products cover a wide range, alloy saw blades, milling cutters, gear hobbing machines and so on are also our main sales commodities, and we can support customization, you can tell us your needs, it can be in accordance with your drawings of the production of the products you need, can also be customized on the products you need to customize your logo or pattern, most of the customization needs we can meet you, so please feel free to contact us, we will provide you with one-to-one attentive service.​​​​​​​
Factory Direct Price
In terms of price, which is the concern of customers, we also provide a lot of discounts for everyone, but the favorable price does not mean that we will relax our attention to quality. We are forward to new customers who would like to choose us as a long-term partner very much, so we have extra discounts for new customers, you can contact us for a quote.
Our products are already impeccable in terms of quality, and we would like to show our sincerity to gain your cooperation by offering discounts on price, so if you need our products, then why not give it a try.​​​​​​​
Reasonable Price4
More than 10 precision production line, easy to realize large quantities of goods, to provide you with the best price.More than 10 precision production line, easy to realize large quantities of goods, to provide you with the best price.More than 10 precision production line, easy to realize large quantities of goods, to provide you with the best price. Have an excellent after-sales service team.
01
Rich Experience
02
High Quality
03
Factory Direct Price


01
Rich Experience
02
High Quality
03
Factory Direct Price


GEAR HOB CUTTER PRODUCTION PROCESS

Gears are cut using the hobbing process, which involves the simultaneous rotation of a gear blank and a tool (called a hob) at a fixed gear ratio. In this method, the gear blank is fed into the rotating hob until the desired depth is reached. The hob passes through the surface of the blank before all the teeth are formed.

For spur gear hobbing, the hob teeth are set parallel to the axis of rotation of the blank. For helical gears, the axis of the hob is set at an angle to produce the correct helix. For worm gears, the axis of the hob is set at right angles to the blank.
  • Convection Hobbing
    Convection Hobbing
  • Climb hobbing
    Climb hobbing

COOPERATION PROCESS

Step.1
Send your inquiry
Step.2
Quote price
Step.3
Negotiate price and lead time
Step.4
Sign the contract
Step.5
Payment and production
Step.6
Inspection
Step.7
Shipment

GEAR HOB CUTTER DOWNLOAD

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Gear Hob Cutter Catalog.pdf 3.30MB download
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GEAR HOB CUTTER FAQ

We have compiled the most frequently asked questions about our gear hob cutters here for your convenience, but please feel free to contact us if you have any additional questions.

  • What is a gear hob？

    A hob is a gear cutting tool whose teeth are arranged in a spiral along a cylinder or cone. Used for machining cylindrical gears, worm gears and other cylindrical workpieces with teeth (gear machining) according to the spread tooth method.

  • What is the difference between milling teeth and hobbing teeth?

    Hobbing is a process of gradually producing gear teeth using a helical cutting tool called a hob. The hob and workpiece are continuously rotated and machined as the hob feeds across the face width of the gear blank.
    This process allows for the production of different tooth pitches. Gear milling, on the other hand, uses a rotating multi-point cutting tool with a cross-section comparable to the teeth being produced. It is also capable of producing different tooth pitches. After each cut, the gear returns to its original position, and the gear blank is indexed for the next cut.

  • Is there a difference between gear insertion and hobbing?

    The forming process uses the reciprocating motion of the cutting head. Some molding processes cut only one tooth at a time, while others use a multi-point array of cutting tools to rotate the blade and make multiple cuts to the teeth simultaneously. It is used for cutting external spur gears and worm gears, etc., and can also be used to replace internal gear teeth. Multiple gear shapers can be combined into a complete hob.
    During the hobbing process, the teeth are cut one by one using interpolation until the machining is complete. Alternatively, the hob cuts all the teeth at the same time, saving time while maintaining accuracy. This method is highly accurate but takes a long time.
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