Merchandise Description
With 30-year rich industry experience and knowledge, we have earned specialization in manufacturing and supplying superior quality Large Gears. These are fabricated in conformity with defined industry standards, these compact and sturdy gears have standard working speed and torque measurement. The offered range is widely acknowledged by the customers for features like optimum performance, robust construction and longer life. These precision engineered gears are widely demanded across varied industries, where large gear reduction is required.
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Benefits:
– Products with Customers’ DesignsÂ
– Strong Machining & Heat Treatment AbilitiesÂ
– Strict Quality ControlÂ
– Prompt Delivery
-Experience in Cooperation with Fortune 500 CompaniesÂ
Process:Â
Forging/Casting
Normalizing&Tempering-Proof Machinnig
Quenching&Tempering
Finish Machining(Teeth Grinding)
We can offer you in various process conditions
Solutions for Many End Markets and Applications
–Mining
–Metallurgy
–Power Generation
–Sugar
–Cement Plant
–Port Machinery
–Oil and natural
–Papermaking
–OEM gear case
–General Industrial
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Specifications of Gear :
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No. | Merchandise | Description |
1 | Diameter | ≤15m |
2 | Module | ≤45 |
three | Material | Cast Alloy Steel, Cast Carbon Steel, Forged Alloy Steel, Forged Carbon Steel |
4 | Structure From | Integrated, Half to Half, Four Pieces and More Pieces |
5 | Heat Treatment | Quenching & Tempering, Normalizing & Tempering, Carburizing & Quenching & Tempering |
6 | Tooth Form | Annular Gear, Outer Gear Ring |
seven | Normal | ISO, EN, DIN, AISI, ASTM, JIS, IS, GB |
Inspection and Test Outline of Girth Gear:
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No. | Item | Inspection Area | Acceptance Criteria | Inspection Stage | Certificates |
1 | Chemical Composition | Sample | Material Requirement | When Smelting After Heat Treatment |
Chemical Composition Report |
2 | Mechanical Properties | Sample(Test Bar on the Gear Body) | Technical Requirement | After Heat Treatment | Mechanical Properties Report |
3 | Heat Treatment | Whole Body | Manufacturing Standard | During Heat Treatment | Heat Treatment Report Curves of Heat Treatment |
4 | Hardness Test | Tooth Surface, 3 Points Per 90° | Technical Requirement | After Heat Treatment | Hardness Teat Report |
After Semi Finish Machining | |||||
5 | Dimension Inspection | Whole Body | Drawing | After Semi Finish Machining | Dimension Inspection Report |
Finish Machining | |||||
6 | Magnetic Power Test (MT) | Tooth Surface | Agreed Standard | After Finish Gear Hobbing | MT  Report |
7 | UT | Spokes Parts | Agreed Standard | After Rough Machining | UT Report |
After Welded | |||||
After Semi Finish Machining | |||||
8 | PT | Defect Area | No Defect Indicated | After Digging After Welded |
PTÂ Record |
9 | Mark Inspection | Whole Body | Manufacturing Standard | Final Inspection | Images |
10 | Appearance Inspection | Whole Body | CIC’s Requirement | Before Packing (Final Inspection) |
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eleven | Anti-rust Inspection | Whole Body | Agreed Anti-rust Agent | Before Packing | Pictures |
12 | Packing Inspection | Whole Body | Agreed Packing Form | During Packing | Images |
Facilities For Manufacturing Gear ring:
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No. | Merchandise | Description |
one | Smelting & Casting Capability |  40t ,50t, 80t Series AC Electric Arc Furnace 2×150t, 60t LF Ladle Refining Furnace 150t, 60t Series VD/VOD Furnace 20×18m Large Pouring Facility We can pour 900t refining liquid steel one time, and achieve vacuum poured 600t steel ingots. We can produce the high quality steel of more than 260 steel grades as carbon steel,structural alloy steel and the structural steel, refractory steel and stainless steel of special requirement. The maximum weight of casting steel, gray casting, graphite cast iron and non-ferrous casting is 600t, 200t, 150t and 20t separately. |
2 | Forging Capability |  The only one in the word, the most technologically advanced and the largest specification18500t Oil Press, equipped with 750t.m forging operation machine 8400t Water Press 3150t Water Press 600t Water Press Φ5m High Precision Ring Mill ( WAGNER,Germany) Φ12m High Precision Ring Mill We can roll rings of different sections of carbon steel, alloy steel, high temperature alloy steel and non-ferrous alloys such as copper alloy, aluminum alloy and titanium alloy. Max. Diameter of rolled ring will be 12m. |
three | Heat Treatment Capability | 9×9×15m,8×8×12m,6×6×15m,15×16×6.5m,16×20×6m ,7×7×17m Series Heat Furnace and Heat Treatment Furnaces φ2.0×30m,φ3.0×5.0m Series Heat Treatment Furnaces φ5.0×2.5m,φ3.2×1.5m,φ3.0×5.0m,φ2.0×5m Series Carburizing Furnaces & Nitriding Furnaces & Quenching Bathes φ2.0×30m Well Type CNC Electrical Furnaces Φ3.0×5.0M Horizontal Gas Temperature-differential Furnace Double-frequency and Double-position Quenching Lathe of Pinion Shaft |
4 | Machining Capability | one. ≥5m CNC Heavy Duty Vertical Lathes 12m CNC Double-column Vertical Lathe 10m CNC Double-column Vertical Lathe 10m CNC Single-column Vertical Lathe six.3m Heavy Duty Vertical Lathe 5m CNC Heavy Duty Vertical Lathe  |
two. ≥5m Vertical Gear Hobbing Machines 15m CNC Vertical Gear Hobbing Machine 10m Gear Hobbing Machine 8m Gear Hobbing Machine 5m Gear Hobbing Machine 3m Gear Hobbing Machining |
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three. Imported High-precision Gear Grinding Machines .8m~3.5m CNC Molding Gear Grinding Machines |
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4. Large Boring & Milling Machines 220 CNC Floor-mounted Boring & Milling Machine 200 CNC Floor-mounted Boring & Milling Machine 160 CNC Floor-mounted Boring & Milling Machine |
Testing Process:
· QA DOC: Chemical Composition Report, Mechanical Properties Report, UT Report, Heat Treatment Report, Dimensions Check Report
· The data on chemical composition report and mechanical properties report are approved by third party, HangZhou Ship Material Research Institute, CSIC.
· UT test: 100% ultrasonic test according to EN15718-3, SA388, Sep 1921 C/c etc.
· Heat Treatment Report: provide original copy of heat treatment curve/time table.
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Girth Equipment Packing Photo
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Primary Facilites for Gear Producing
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      Other Connected Spare Elements
US $15-15,000 / Piece | |
1 Piece (Min. Order) |
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Application: | Industry |
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Hardness: | According to Customers′ Requirementa |
Manufacturing Method: | Cast Gesr, Forged Gear |
Toothed Portion Shape: | Spur Gear |
Material: | Cast Steel, Forged Steel |
Type: | Circular Gear |
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Customization: |
Available
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No. | Item | Description |
1 | Diameter | ≤15m |
2 | Module | ≤45 |
3 | Material | Cast Alloy Steel, Cast Carbon Steel, Forged Alloy Steel, Forged Carbon Steel |
4 | Structure From | Integrated, Half to Half, Four Pieces and More Pieces |
5 | Heat Treatment | Quenching & Tempering, Normalizing & Tempering, Carburizing & Quenching & Tempering |
6 | Tooth Form | Annular Gear, Outer Gear Ring |
7 | Standard | ISO, EN, DIN, AISI, ASTM, JIS, IS, GB |
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No. | Item | Inspection Area | Acceptance Criteria | Inspection Stage | Certificates |
1 | Chemical Composition | Sample | Material Requirement | When Smelting After Heat Treatment |
Chemical Composition Report |
2 | Mechanical Properties | Sample(Test Bar on the Gear Body) | Technical Requirement | After Heat Treatment | Mechanical Properties Report |
3 | Heat Treatment | Whole Body | Manufacturing Standard | During Heat Treatment | Heat Treatment Report Curves of Heat Treatment |
4 | Hardness Test | Tooth Surface, 3 Points Per 90° | Technical Requirement | After Heat Treatment | Hardness Teat Report |
After Semi Finish Machining | |||||
5 | Dimension Inspection | Whole Body | Drawing | After Semi Finish Machining | Dimension Inspection Report |
Finish Machining | |||||
6 | Magnetic Power Test (MT) | Tooth Surface | Agreed Standard | After Finish Gear Hobbing | MT Report |
7 | UT | Spokes Parts | Agreed Standard | After Rough Machining | UT Report |
After Welded | |||||
After Semi Finish Machining | |||||
8 | PT | Defect Area | No Defect Indicated | After Digging After Welded |
PT Record |
9 | Mark Inspection | Whole Body | Manufacturing Standard | Final Inspection | Pictures |
10 | Appearance Inspection | Whole Body | CIC’s Requirement | Before Packing (Final Inspection) |
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11 | Anti-rust Inspection | Whole Body | Agreed Anti-rust Agent | Before Packing | Pictures |
12 | Packing Inspection | Whole Body | Agreed Packing Form | During Packing | Pictures |
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No. | Item | Description |
1 | Smelting & Casting Capability | 40t ,50t, 80t Series AC Electric Arc Furnace 2×150t, 60t LF Ladle Refining Furnace 150t, 60t Series VD/VOD Furnace 20×18m Large Pouring Facility We can pour 900t refining liquid steel one time, and achieve vacuum poured 600t steel ingots. We can produce the high quality steel of more than 260 steel grades as carbon steel,structural alloy steel and the structural steel, refractory steel and stainless steel of special requirement. The maximum weight of casting steel, gray casting, graphite cast iron and non-ferrous casting is 600t, 200t, 150t and 20t separately. |
2 | Forging Capability | The only one in the word, the most technologically advanced and the largest specification18500t Oil Press, equipped with 750t.m forging operation machine 8400t Water Press 3150t Water Press 600t Water Press Φ5m High Precision Ring Mill ( WAGNER,Germany) Φ12m High Precision Ring Mill We can roll rings of different sections of carbon steel, alloy steel, high temperature alloy steel and non-ferrous alloys such as copper alloy, aluminum alloy and titanium alloy. Max. Diameter of rolled ring will be 12m. |
3 | Heat Treatment Capability | 9×9×15m,8×8×12m,6×6×15m,15×16×6.5m,16×20×6m ,7×7×17m Series Heat Furnace and Heat Treatment Furnaces φ2.0×30m,φ3.0×5.0m Series Heat Treatment Furnaces φ5.0×2.5m,φ3.2×1.5m,φ3.0×5.0m,φ2.0×5m Series Carburizing Furnaces & Nitriding Furnaces & Quenching Bathes φ2.0×30m Well Type CNC Electrical Furnaces Φ3.0×5.0M Horizontal Gas Temperature-differential Furnace Double-frequency and Double-position Quenching Lathe of Pinion Shaft |
4 | Machining Capability | 1. ≥5m CNC Heavy Duty Vertical Lathes 12m CNC Double-column Vertical Lathe 10m CNC Double-column Vertical Lathe 10m CNC Single-column Vertical Lathe 6.3m Heavy Duty Vertical Lathe 5m CNC Heavy Duty Vertical Lathe |
2. ≥5m Vertical Gear Hobbing Machines 15m CNC Vertical Gear Hobbing Machine 10m Gear Hobbing Machine 8m Gear Hobbing Machine 5m Gear Hobbing Machine 3m Gear Hobbing Machining |
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3. Imported High-precision Gear Grinding Machines 0.8m~3.5m CNC Molding Gear Grinding Machines |
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4. Large Boring & Milling Machines 220 CNC Floor-mounted Boring & Milling Machine 200 CNC Floor-mounted Boring & Milling Machine 160 CNC Floor-mounted Boring & Milling Machine |
US $15-15,000 / Piece | |
1 Piece (Min. Order) |
###
Application: | Industry |
---|---|
Hardness: | According to Customers′ Requirementa |
Manufacturing Method: | Cast Gesr, Forged Gear |
Toothed Portion Shape: | Spur Gear |
Material: | Cast Steel, Forged Steel |
Type: | Circular Gear |
###
Customization: |
Available
|
---|
###
No. | Item | Description |
1 | Diameter | ≤15m |
2 | Module | ≤45 |
3 | Material | Cast Alloy Steel, Cast Carbon Steel, Forged Alloy Steel, Forged Carbon Steel |
4 | Structure From | Integrated, Half to Half, Four Pieces and More Pieces |
5 | Heat Treatment | Quenching & Tempering, Normalizing & Tempering, Carburizing & Quenching & Tempering |
6 | Tooth Form | Annular Gear, Outer Gear Ring |
7 | Standard | ISO, EN, DIN, AISI, ASTM, JIS, IS, GB |
###
No. | Item | Inspection Area | Acceptance Criteria | Inspection Stage | Certificates |
1 | Chemical Composition | Sample | Material Requirement | When Smelting After Heat Treatment |
Chemical Composition Report |
2 | Mechanical Properties | Sample(Test Bar on the Gear Body) | Technical Requirement | After Heat Treatment | Mechanical Properties Report |
3 | Heat Treatment | Whole Body | Manufacturing Standard | During Heat Treatment | Heat Treatment Report Curves of Heat Treatment |
4 | Hardness Test | Tooth Surface, 3 Points Per 90° | Technical Requirement | After Heat Treatment | Hardness Teat Report |
After Semi Finish Machining | |||||
5 | Dimension Inspection | Whole Body | Drawing | After Semi Finish Machining | Dimension Inspection Report |
Finish Machining | |||||
6 | Magnetic Power Test (MT) | Tooth Surface | Agreed Standard | After Finish Gear Hobbing | MT Report |
7 | UT | Spokes Parts | Agreed Standard | After Rough Machining | UT Report |
After Welded | |||||
After Semi Finish Machining | |||||
8 | PT | Defect Area | No Defect Indicated | After Digging After Welded |
PT Record |
9 | Mark Inspection | Whole Body | Manufacturing Standard | Final Inspection | Pictures |
10 | Appearance Inspection | Whole Body | CIC’s Requirement | Before Packing (Final Inspection) |
|
11 | Anti-rust Inspection | Whole Body | Agreed Anti-rust Agent | Before Packing | Pictures |
12 | Packing Inspection | Whole Body | Agreed Packing Form | During Packing | Pictures |
###
No. | Item | Description |
1 | Smelting & Casting Capability | 40t ,50t, 80t Series AC Electric Arc Furnace 2×150t, 60t LF Ladle Refining Furnace 150t, 60t Series VD/VOD Furnace 20×18m Large Pouring Facility We can pour 900t refining liquid steel one time, and achieve vacuum poured 600t steel ingots. We can produce the high quality steel of more than 260 steel grades as carbon steel,structural alloy steel and the structural steel, refractory steel and stainless steel of special requirement. The maximum weight of casting steel, gray casting, graphite cast iron and non-ferrous casting is 600t, 200t, 150t and 20t separately. |
2 | Forging Capability | The only one in the word, the most technologically advanced and the largest specification18500t Oil Press, equipped with 750t.m forging operation machine 8400t Water Press 3150t Water Press 600t Water Press Φ5m High Precision Ring Mill ( WAGNER,Germany) Φ12m High Precision Ring Mill We can roll rings of different sections of carbon steel, alloy steel, high temperature alloy steel and non-ferrous alloys such as copper alloy, aluminum alloy and titanium alloy. Max. Diameter of rolled ring will be 12m. |
3 | Heat Treatment Capability | 9×9×15m,8×8×12m,6×6×15m,15×16×6.5m,16×20×6m ,7×7×17m Series Heat Furnace and Heat Treatment Furnaces φ2.0×30m,φ3.0×5.0m Series Heat Treatment Furnaces φ5.0×2.5m,φ3.2×1.5m,φ3.0×5.0m,φ2.0×5m Series Carburizing Furnaces & Nitriding Furnaces & Quenching Bathes φ2.0×30m Well Type CNC Electrical Furnaces Φ3.0×5.0M Horizontal Gas Temperature-differential Furnace Double-frequency and Double-position Quenching Lathe of Pinion Shaft |
4 | Machining Capability | 1. ≥5m CNC Heavy Duty Vertical Lathes 12m CNC Double-column Vertical Lathe 10m CNC Double-column Vertical Lathe 10m CNC Single-column Vertical Lathe 6.3m Heavy Duty Vertical Lathe 5m CNC Heavy Duty Vertical Lathe |
2. ≥5m Vertical Gear Hobbing Machines 15m CNC Vertical Gear Hobbing Machine 10m Gear Hobbing Machine 8m Gear Hobbing Machine 5m Gear Hobbing Machine 3m Gear Hobbing Machining |
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3. Imported High-precision Gear Grinding Machines 0.8m~3.5m CNC Molding Gear Grinding Machines |
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4. Large Boring & Milling Machines 220 CNC Floor-mounted Boring & Milling Machine 200 CNC Floor-mounted Boring & Milling Machine 160 CNC Floor-mounted Boring & Milling Machine |
How to Design a Forging Spur Gear
Before you start designing your own spur gear, you need to understand its main components. Among them are Forging, Keyway, Spline, Set screw and other types. Understanding the differences between these types of spur gears is essential for making an informed decision. To learn more, keep reading. Also, don’t hesitate to contact me for assistance! Listed below are some helpful tips and tricks to design a spur gear. Hopefully, they will help you design the spur gear of your dreams.
Forging spur gears
Forging spur gears is one of the most important processes of automotive transmission components. The manufacturing process is complex and involves several steps, such as blank spheroidizing, hot forging, annealing, phosphating, and saponification. The material used for spur gears is typically 20CrMnTi. The process is completed by applying a continuous through extrusion forming method with dies designed for the sizing band length L and Splitting angle thickness T.
The process of forging spur gears can also use polyacetal (POM), a strong plastic commonly used for the manufacture of gears. This material is easy to mold and shape, and after hardening, it is extremely stiff and abrasion resistant. A number of metals and alloys are used for spur gears, including forged steel, stainless steel, and aluminum. Listed below are the different types of materials used in gear manufacturing and their advantages and disadvantages.
A spur gear’s tooth size is measured in modules, or m. Each number represents the number of teeth in the gear. As the number of teeth increases, so does its size. In general, the higher the number of teeth, the larger the module is. A high module gear has a large pressure angle. It’s also important to remember that spur gears must have the same module as the gears they are used to drive.
Set screw spur gears
A modern industry cannot function without set screw spur gears. These gears are highly efficient and are widely used in a variety of applications. Their design involves the calculation of speed and torque, which are both critical factors. The MEP model, for instance, considers the changing rigidity of a tooth pair along its path. The results are used to determine the type of spur gear required. Listed below are some tips for choosing a spur gear:
Type A. This type of gear does not have a hub. The gear itself is flat with a small hole in the middle. Set screw gears are most commonly used for lightweight applications without loads. The metal thickness can range from 0.25 mm to 3 mm. Set screw gears are also used for large machines that need to be strong and durable. This article provides an introduction to the different types of spur gears and how they differ from one another.
Pin Hub. Pin hub spur gears use a set screw to secure the pin. These gears are often connected to a shaft by dowel, spring, or roll pins. The pin is drilled to the precise diameter to fit inside the gear, so that it does not come loose. Pin hub spur gears have high tolerances, as the hole is not large enough to completely grip the shaft. This type of gear is generally the most expensive of the three.
Keyway spur gears
In today’s modern industry, spur gear transmissions are widely used to transfer power. These types of transmissions provide excellent efficiency but can be susceptible to power losses. These losses must be estimated during the design process. A key component of this analysis is the calculation of the contact area (2b) of the gear pair. However, this value is not necessarily applicable to every spur gear. Here are some examples of how to calculate this area. (See Figure 2)
Spur gears are characterized by having teeth parallel to the shafts and axis, and a pitch line velocity of up to 25 m/s is considered high. In addition, they are more efficient than helical gears of the same size. Unlike helical gears, spur gears are generally considered positive gears. They are often used for applications in which noise control is not an issue. The symmetry of the spur gear makes them especially suitable for applications where a constant speed is required.
Besides using a helical spur gear for the transmission, the gear can also have a standard tooth shape. Unlike helical gears, spur gears with an involute tooth form have thick roots, which prevents wear from the teeth. These gears are easily made with conventional production tools. The involute shape is an ideal choice for small-scale production and is one of the most popular types of spur gears.
Spline spur gears
When considering the types of spur gears that are used, it’s important to note the differences between the two. A spur gear, also called an involute gear, generates torque and regulates speed. It’s most common in car engines, but is also used in everyday appliances. However, one of the most significant drawbacks of spur gears is their noise. Because spur gears mesh only one tooth at a time, they create a high amount of stress and noise, making them unsuitable for everyday use.
The contact stress distribution chart represents the flank area of each gear tooth and the distance in both the axial and profile direction. A high contact area is located toward the center of the gear, which is caused by the micro-geometry of the gear. A positive l value indicates that there is no misalignment of the spline teeth on the interface with the helix hand. The opposite is true for negative l values.
Using an upper bound technique, Abdul and Dean studied the forging of spur gear forms. They assumed that the tooth profile would be a straight line. They also examined the non-dimensional forging pressure of a spline. Spline spur gears are commonly used in motors, gearboxes, and drills. The strength of spur gears and splines is primarily dependent on their radii and tooth diameter.
SUS303 and SUS304 stainless steel spur gears
Stainless steel spur gears are manufactured using different techniques, which depend on the material and the application. The most common process used in manufacturing them is cutting. Other processes involve rolling, casting, and forging. In addition, plastic spur gears are produced by injection molding, depending on the quantity of production required. SUS303 and SUS304 stainless steel spur gears can be made using a variety of materials, including structural carbon steel S45C, gray cast iron FC200, nonferrous metal C3604, engineering plastic MC901, and stainless steel.
The differences between 304 and 303 stainless steel spur gears lie in their composition. The two types of stainless steel share a common design, but have varying chemical compositions. China and Japan use the letters SUS304 and SUS303, which refer to their varying degrees of composition. As with most types of stainless steel, the two different grades are made to be used in industrial applications, such as planetary gears and spur gears.
Stainless steel spur gears
There are several things to look for in a stainless steel spur gear, including the diametral pitch, the number of teeth per unit diameter, and the angular velocity of the teeth. All of these aspects are critical to the performance of a spur gear, and the proper dimensional measurements are essential to the design and functionality of a spur gear. Those in the industry should be familiar with the terms used to describe spur gear parts, both to ensure clarity in production and in purchase orders.
A spur gear is a type of precision cylindrical gear with parallel teeth arranged in a rim. It is used in various applications, such as outboard motors, winches, construction equipment, lawn and garden equipment, turbine drives, pumps, centrifuges, and a variety of other machines. A spur gear is typically made from stainless steel and has a high level of durability. It is the most commonly used type of gear.
Stainless steel spur gears can come in many different shapes and sizes. Stainless steel spur gears are generally made of SUS304 or SUS303 stainless steel, which are used for their higher machinability. These gears are then heat-treated with nitriding or tooth surface induction. Unlike conventional gears, which need tooth grinding after heat-treating, stainless steel spur gears have a low wear rate and high machinability.
editor by czh 2023-01-08