Product Description
ANSI Standard Steel Spur Gears Bevel Gear Transmission Gear
Standard spur gear
Gear with straight teeth
Mould from 0.5–16
20CrMnTi, 20Cr, 40Cr
High quality lubrication
Harden teeth 35-55HRC
Standard spur gears are the simplest type of gear. They consist of a cylinder or disk with the teeth projecting radially, and although they are not straight-sided in form, the edge of each tooth is straight and aligned parallel to the axis of rotation. These gears can be meshed together correctly only if they are fitted to parallel shafts.
| Product name | Steel Spur Gear |
| Materials Available | 1. Stainless Steel: SS201, SS303, SS304, SS316, SS416, SS420 |
| 2. Steel:C45(K1045), C46(K1046),C20 | |
| 3. Brass:C36000 ( C26800), C37700 ( HPb59), C38500( HPb58), C27200(CuZn37), C28000(CuZn40) | |
| 4. Bronze: C51000, C52100, C54400, etc | |
| 5. Iron: 1213, 12L14,1215 | |
| 6. Aluminum: Al6061, Al6063 | |
| 7.OEM according to your request | |
| Surface Treatment | Annealing, natural anodization, heat treatment,  polishing, nickel plating, chrome plating, znic plating,yellow passivation, gold passivation,  satin, Black surface painted etc. |
| Products Available | sprockt chains, pulley, shafts(axles, spline shafts, dart shafts),gears (pinions, wheels gear rack) bearing, bearing seat,  bushing, coupling, lock assembly etc. |
| Processing Method | CNC machining, punch,turning, milling, drilling, grinding, broaching, welding and assembly |
| QC : | Technicians self-check in production,final-check before package by professional Quality inspector |
| Size | Drawings |
| Package | Wooden Case/Container and pallet, or as per customized specifications |
| Certificate | ISO9001:2008 , ISO14001:2001,ISO/TS 16949:2009 |
| Advantage | Quality first Service superior , Advanced equipment,Experienced workers,Perfect testing equipment |
| Lead Time | 15-25days samples. 30-45days offcial order |
XIHU (WEST LAKE) DIS.HUA Chain Group is the most professional manufacturer of power transmission in China, manufacturing roller chains, industry sprockets, motorcycle sprockets, casting sprockets, different type of couplings, pulleys, taper bushes, locking devices, gears, shafts, CNC precision parts and so on. We have passed ISO9001, ISO14001, TS16949 such quality and enviroment certification.
1. Are you manufacturer or trade Company?
We are a factory founded in 1991 with trade team for international service.
2. What terms of payment you usually use?
T/T 30% deposit and 70% against document, Western Union, L/C at sight
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3. what is your lead time for your goods?
Normally 45 days after confirmed order. 30 days could be available in low season for some items (during May to July), and 65 days during new year and hot season ( Jan to March).
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4. Do you attend any Show?
We attend Hannover show in Germany, NMW in Austrilia, Canton fair, PTC, in China and many other special furniture shows.
| Application: | Industry |
|---|---|
| Hardness: | Hardened |
| Gear Position: | External Gear |
| Manufacturing Method: | Rolling Gear |
| Toothed Portion Shape: | Spur Gear |
| Material: | Sc45 |
| Customization: |
Available
| Customized Request |
|---|
How do you ensure proper alignment when connecting spur gears?
Proper alignment is crucial when connecting spur gears to ensure smooth and efficient gear operation. Here’s a detailed explanation of how to ensure proper alignment when connecting spur gears:
- Visual Inspection: Start by visually inspecting the gears, gear shafts, and associated components for any visible misalignment or damage. Look for signs of wear, uneven tooth engagement, or any abnormalities that may affect alignment.
- Shaft Alignment: Align the gear shafts accurately before connecting the gears. Proper shaft alignment ensures that the gears are positioned correctly relative to each other. This can be achieved through various alignment techniques, such as using alignment tools, laser alignment systems, or measuring devices. The goal is to ensure parallel or coaxial alignment between the gear shafts.
- Backlash Adjustment: Adjust the backlash between the gear teeth to achieve proper alignment. Backlash refers to the slight gap between the mating teeth of gears. It is important to maintain an appropriate amount of backlash to allow for smooth gear engagement and minimize the risk of binding or jamming. Follow the manufacturer’s recommendations or industry standards for the recommended backlash range and adjust as necessary during gear installation.
- Check Gear Mesh: Verify the gear meshing pattern to ensure proper alignment. The gear teeth should mesh smoothly and evenly without any signs of excessive or uneven contact. If there are indications of improper meshing, such as concentrated contact on a specific area of the tooth, it may imply misalignment or other issues that need to be addressed.
- Shim Adjustment: If misalignment is detected, shimming can be employed to correct it. Shimming involves placing thin metal shims between the gear and the shaft to adjust the positioning and alignment. Shims are available in various thicknesses, allowing for precise alignment adjustments. Careful measurement and selection of the appropriate shim thickness can help achieve the desired alignment.
- Tightening Bolts: When connecting the gears to the shafts, ensure that the bolts or fasteners are tightened evenly and to the recommended torque specifications. Uneven tightening can introduce misalignment or uneven load distribution, leading to gear misalignment and potential issues.
- Post-Installation Verification: After connecting the gears, perform a final verification of the alignment. Rotate the gears manually or through the gear system’s intended operation and observe the gear meshing behavior. Look for any signs of abnormal noise, vibration, or irregular tooth engagement. If any issues are detected, further adjustments or inspections may be necessary.
- Regular Maintenance: Implement a proactive maintenance program that includes periodic inspections and alignment verification. Gears can experience wear or misalignment over time due to factors such as load variations, temperature changes, or prolonged operation. Regular maintenance allows for early detection and correction of alignment issues, ensuring optimal gear performance and longevity.
Proper alignment is essential for maximizing the efficiency, durability, and reliability of spur gear systems. By following these alignment practices and considering the manufacturer’s recommendations, industry standards, and expert advice, you can ensure proper alignment when connecting spur gears.
It’s important to note that the specific alignment techniques and procedures may vary depending on the gear system’s design, size, application, and other factors. Consulting with gear manufacturers, engineers, or alignment specialists can provide further guidance on the recommended alignment practices for your specific gear system.
What are the advantages and disadvantages of using spur gears?
Spur gears offer several advantages and disadvantages when used in mechanical systems. Here’s a detailed explanation of the advantages and disadvantages of using spur gears:
Advantages of Spur Gears:
- Simplicity: Spur gears have a simple and straightforward design, consisting of cylindrical gears with straight teeth. Their simplicity facilitates ease of manufacturing, installation, and maintenance.
- Efficiency: Spur gears are highly efficient in transmitting power from one shaft to another. They have minimal sliding friction between the gear teeth, resulting in high mechanical efficiency.
- Cost-Effectiveness: Due to their simple design and ease of production, spur gears are generally more cost-effective compared to other types of gears. They are widely available and can be manufactured in large quantities at a reasonable cost.
- Compactness: Spur gears have a compact design, making them suitable for applications where space is limited. They can be arranged in parallel or stacked configurations to achieve the desired gear ratios within a confined space.
- High Load Capacity: Spur gears can handle high load capacities and transmit substantial amounts of torque. Their teeth are designed to distribute the load evenly across the gear face, resulting in improved load-bearing capabilities.
- Precision: Spur gears provide precise and predictable motion due to the simplicity of their tooth engagement. This makes them suitable for applications that require accurate positioning and synchronization.
Disadvantages of Spur Gears:
- Noisy Operation: Spur gears can produce noise during operation, especially at high speeds. The engagement of the gear teeth generates impact and vibration, resulting in noise that may require additional measures to mitigate.
- Axial Thrust: Spur gears generate axial thrust forces along the gear shafts due to the parallel arrangement of their teeth. This thrust must be properly managed using thrust bearings or other means to prevent excessive axial loading on the gear shafts.
- Limited Speed Ratio: Spur gears are primarily designed for applications with moderate speed ratios. They are less suitable for high-speed applications due to the limitations imposed by the tooth engagement and potential for increased noise and vibration.
- Unidirectional Operation: Spur gears are typically designed for unidirectional power transmission. Reversing the direction of rotation can cause noise, impact, and increased wear due to the abrupt change in tooth engagement.
- Prone to Wear: The sliding contact between the gear teeth in spur gears can result in wear over time, especially under heavy loads or inadequate lubrication. Regular maintenance and proper lubrication are necessary to minimize wear and extend gear life.
It’s important to consider these advantages and disadvantages when selecting gear types for specific applications. While spur gears are well-suited for many applications, other gear types, such as helical gears or bevel gears, may be more suitable in certain situations depending on the requirements and operating conditions.
Are there different sizes and configurations of spur gears available?
Yes, there are various sizes and configurations of spur gears available to suit different applications and requirements. Here’s a detailed explanation of the different options when it comes to sizes and configurations of spur gears:
Sizes: Spur gears come in a wide range of sizes to accommodate different torque and speed requirements. The size of a spur gear is typically specified by its pitch diameter, which is the diameter of the pitch circle. The pitch diameter determines the gear’s overall size and the spacing between the teeth. Spur gears can range from small gears used in precision instruments to large gears used in heavy machinery and industrial equipment.
Module: Module is a parameter used to specify the size and spacing of the teeth on a spur gear. It represents the ratio of the pitch diameter to the number of teeth. Different module sizes are available to accommodate various gear sizes and applications. Smaller module sizes are used for finer tooth profiles and higher precision, while larger module sizes are used for heavier loads and higher torque applications.
Number of Teeth: The number of teeth on a spur gear can vary depending on the specific application. Gears with a higher number of teeth provide smoother operation and distribute the load more evenly, whereas gears with fewer teeth are typically used for higher speeds and compact designs.
Pressure Angle: The pressure angle is an important parameter that determines the shape and engagement of the teeth. Common pressure angles for spur gears are 20 degrees and 14.5 degrees. The selection of the pressure angle depends on factors such as load capacity, efficiency, and specific design requirements.
Profile Shift: Profile shift is a design feature that allows modification of the tooth profile to optimize the gear’s performance. It involves shifting the tooth profile along the gear’s axis, which can affect factors such as backlash, contact ratio, and load distribution. Profile shift can be positive (when the tooth profile is shifted towards the center of the gear) or negative (when the tooth profile is shifted away from the center).
Hub Configuration: The hub refers to the central part of the gear where it is mounted onto a shaft. Spur gears can have different hub configurations depending on the specific application. Some gears have a simple cylindrical hub, while others may have keyways, set screws, or other features to ensure secure and precise mounting.
Material and Coatings: Spur gears are available in various materials to suit different operating conditions and requirements. Common materials include steel, cast iron, brass, and plastic. Additionally, gears can be coated or treated with surface treatments such as heat treatment or coatings to enhance their wear resistance, durability, and performance.
Mounting Orientation: Spur gears can be mounted in different orientations depending on the application and space constraints. They can be mounted parallel to each other on parallel shafts, or they can be mounted at right angles using additional components such as bevel gears or shafts with appropriate bearings.
In summary, there is a wide range of sizes and configurations available for spur gears, including different pitch diameters, module sizes, number of teeth, pressure angles, profile shifts, hub configurations, materials, coatings, and mounting orientations. The selection of the appropriate size and configuration depends on factors such as torque requirements, speed, load capacity, space constraints, and specific application needs.
editor by CX 2023-10-30