Full Range of Spur Gears and Their Accessories and Equipment

• Customization: Available
• Application: Motor, Electric Cars, Motorcycle, Machinery, Marine, Toy, Agricultural Machinery, Car, Industrial Machinery Area
• Hardness: Industrial Machinery Area
• Model NO.: FD-SG0020
• Gear Position: External Gear
• Manufacturing Method: Cut Gear
• Toothed Portion Shape: Double Helical Gear
• Material: Cast Steel
• Type: Worm And Wormwheel
• RGB: Black
• Metal Products: Metal
• Transport Package: The Product Is First Wrapped with Foam Plastic for
• Specification: The module is 3mm, the number of teeth is 20, the
• Trademark: Jinjiang Feida
• Origin: Fujian Quanzhou
• Package Size: 10.00cm * 28.00cm * 24.00cm
• Package Gross Weight: 10.000kg

Product Description

I. Product Application Features

1. Industrial Machinery Transmission: Widely applied in various industrial machinery, such as machine tools, printing machinery, and textile machinery. In machine tools, spur gears are responsible for precisely transmitting the power of the motor to each working part, enabling the relative movement between the cutting tool and the workpiece to ensure machining accuracy. In printing machinery, they coordinate the rotational speeds of different rollers to achieve operations such as paper conveying, printing, and winding. In textile machinery, they assist in processes like yarn spinning and weaving, ensuring efficient and stable production.

2. Automobile Manufacturing: Spur gears are extensively used in key components of automobiles, such as transmissions and differentials. In the transmission, spur gears, through combinations of different numbers of teeth, achieve speed changes of the vehicle under various driving conditions. In the differential, spur gears ensure that when the car turns, the left and right wheels can rotate at different speeds, making the vehicle run smoothly.

3. Home Appliance Equipment: Commonly found in home appliances like washing machines, air conditioners, and power tools. The spur gears in washing machines drive the drum to rotate for washing and dehydrating clothes. The spur gears of the fans in air conditioners drive the blades to achieve air circulation and heat exchange. For power tools like electric drills and chainsaws, the spur gears convert the high-speed rotation of the motor into an appropriate torque to meet different working requirements.

4. Aerospace: Used in the auxiliary systems of aircraft engines, landing gear retraction mechanisms, etc. In the auxiliary systems of aircraft engines, spur gears transmit power to ensure the normal operation of equipment such as fuel pumps and hydraulic pumps. The spur gears in the landing gear retraction mechanism can withstand huge impact forces, ensuring the reliable retraction of the landing gear and guaranteeing flight safety.

II. Specification Parameters

1. Module: Covering a variety of specifications from 0.5 - 10mm, it can be selected according to different transmission loads and speed requirements. Smaller modules are suitable for light-load, high-speed precision transmissions, such as the gears of micro motors in electronic devices. Larger modules are used in heavy-load, low-speed transmission scenarios, such as the large reducers' gears in mining machinery.

2. Number of Teeth: Usually between 12 - 200 teeth. Through the combination of different numbers of teeth, different gear ratios can be achieved. The gear ratio calculation formula is i = z2 / z1 (z1 is the number of teeth of the driving gear, and z2 is the number of teeth of the driven gear), and users can precisely design the gear ratio according to actual needs.

3. Tooth Profile: Standard involute tooth profile is adopted. This tooth profile has the advantages of smooth transmission, strong load-bearing capacity, and mature manufacturing technology. The tooth profile accuracy can reach levels 6 - 8 in the GB/T 10095 - 2008 standard. The high-precision tooth profile ensures the accuracy and low noise of gear transmission.

4. Materials:

• Steel: High-quality alloy steels such as 45 steel and 40Cr are commonly used. 45 steel has good comprehensive performance and a relatively low cost, making it suitable for general industrial machinery. After quenching and tempering treatment, 40Cr has higher strength and toughness and is often used in occasions with higher strength requirements, such as the gears of automobile transmissions.

• Plastic: Mainly including nylon, polyoxymethylene (POM), etc. Nylon gears have good wear resistance, self-lubrication, and low noise, and are often used in home appliances and small machinery. POM gears have good dimensional stability and high rigidity, making them suitable for transmission systems with higher precision requirements.

5. Accuracy Grade: According to the GB/T 10095 - 2008 standard, it is divided into grades 6, 7, and 8. Grade 6 accuracy is suitable for high-speed, heavy-load, and precision transmissions, such as the gears of aircraft engines. Grade 7 accuracy is widely applied and suitable for general industrial machinery and automotive transmission components. Grade 8 accuracy is used in occasions with relatively low precision requirements and small loads, such as the gears of ordinary power tools.

6. Dimensions: The outer diameter ranges from 10mm - 1000mm, and special sizes can be customized according to customers' needs. According to different installation methods and fitting requirements, the shaft hole size provides a variety of choices, such as plain holes, keyway holes, and spline holes.

III. Quality Standards

1. Raw Material Inspection: Conduct strict inspections on the purchased steel and plastic raw materials, including chemical composition analysis, mechanical property testing, etc. The chemical composition of the steel should comply with the corresponding national standards, and mechanical properties such as yield strength, tensile strength, and impact toughness should meet the design requirements. The indicators such as the melt index, density, and tensile strength of the plastic raw materials should also conform to the specified standards.

2. Processing Process Control: In the gear processing process, advanced CNC processing equipment and technology are adopted to ensure dimensional accuracy and tooth profile accuracy. Through the online detection system, the processing dimensions are monitored in real-time, and the processing parameters are adjusted in a timely manner to ensure the consistency of product quality.

3. Heat Treatment Quality: For steel gears that need heat treatment, the heat treatment process parameters, such as heating temperature, holding time, and cooling rate, are strictly controlled. After heat treatment, the hardness, metallographic structure, etc. of the gears should meet the relevant standards to ensure that the gears have good comprehensive mechanical properties.

4. Finished Product Inspection: Based on relevant standards such as GB/T 10095 - 2008, conduct a comprehensive inspection of the finished gears, including items such as pitch deviation, tooth profile error, radial runout, and variation of the common normal length. High-precision inspection equipment, such as a gear measuring center, is used to ensure the accuracy of the inspection data. Only products that pass all inspection items can be determined as qualified products.

5. Packaging and Transportation: The products are packaged with moisture-proof and rust-proof materials to ensure that they are not damaged during transportation and storage. The product model, specification, production date, manufacturer, and other information are marked on the packaging for easy traceability and management. During transportation, select appropriate transportation methods and vehicles to avoid damage to the products due to collisions, squeezes, etc.

IV. Product Display

1. Detail Images: Provide close-up shots of the tooth profile of the spur gear, clearly showing the surface finish, involute shape, and tooth tip relief. Display the internal hole structure of the gear, including the size and shape of the keyway and spline. Take pictures of the side of the gear to present the thickness and processing accuracy of the gear.

2. Packaging Images: Show the individual packaging of the products, such as plastic film wrapping and carton packaging. Display the combined packaging, such as wooden box packaging and pallet packaging, reflecting the protective measures and identification information of the packaging.

3. Usage Scenario Images: Show the installation positions and working states of the spur gears in equipment such as machine tools, automobile transmissions, washing machines, and aircraft engines, allowing customers to intuitively understand the actual applications of the products.