Product Description
2+2 Screw with plastic helical gear. The embedded crowning plastic gear, with a precision level of DIN 9, is injected by mold.
We make customized molds according to customer requirements to manufacture the gear. Customers can also inquire with us to purchase molds.
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| Main Business | Customization of Injection Molds |
| Selling Point | Quality Assurance |
| Mold Material | Steel |
| Surface Treatment | On customer requirement: |
| Product Material | Plastic |
| Certification | IATF 16949 |
| Experience | 15+ Years of Damper/Latch/Plastic Functional Parts Production 10+ Years of Plastic Injection Molding |
| Lead Time | In general: 45-60 days Special custom service: Making arrangements CHINAMFG customers’ request |
| Minimum Order | Comply with customer’s demand |
| Packaging | Standard: Pearl cotton and bubble bag, carton box, and seal Large and big quantity: Pallet or as per customers’ requirement |
| Delivery Way | On customer requirement: Express (DHL, FedEx, UPS, EMS, etc.) Standard Delivery (By Sea, By Air, or By Land) |
| Application | Auto Parts, Vehicle, Electronics, Furniture, Home Use and Household Appliances |
Our Product (Injection Mold for High Precision Gears)
HIGH PRECISION GEARS
RIHA has professional experience in developing and manufacturing molds for the mold injection of high-precision gears of level 9 and endless screws. These products are high accuracy, small design deviation, and have undergone Zeiss CMM strict inspection. All of our precision gears can be customized according to customer requirements, to fulfill efficient transmission and low noise.
Production Process
Company Profile
| Company Name | RIHA Precision Plastic&Mold (ZheJiang ) Co., Ltd. |
| Location | Building 3, No. 50, Cheyang Road, Xihu (West Lake) Dis. District, ZheJiang |
| President | Richie Xihu (West Lake) Dis. |
| Year of Establishment | 2013 |
| Main Business | Precision and durable molds, Precision plastic injection parts, Dampers, Push Latches, Functional parts widely used in the automotive industry and household |
| Product Range | Product development capability: provide customers with one-stop services from product structure design support, mold development, mass production, and automated assembly |
| Mold Processing Ability | MAKINO, +GF and other mold processing equipment |
| Injection Molding Ability | FANUC, Engle and CHINAMFG electric high-speed injection molding machine |
| Product Inspection Capability | Zeiss CT laser scanner, Coordinate measuring machine, Image size measuring instrument and other multi-method quality control capabilities |
Our production team includes a group of experienced and skillful technicians, and we have professional designers with high educational degree and rich experience. We use the ERP management system to monitor the whole process from design to production, ensuring product quality. In logistic and warehouse field, RIHA adopts intellectualized warehouse management, equipped with advanced robots handling automated loading and unloading. The warehouse keeper strictly follows the regulations related to intelligent logistic warehousing and code scHangZhou system to ensure the First-In, First-Out procedure and correct placement of materials.
RIHA provides customers with one-stop product services and solutions. Under the perfect and scientific quality and management system, customers are guaranteed that the products are of high quality, low cost, and short delivery time. Our products have considerable popularity and reputation in the domestic and overseas markets respectively.
Our Advantages
In-time response to letters, telephone calls, or fax
In-time supply of the quotation and mold designs
In-time communication on the technical points
In-time sending pictures of the mold machine progress and schedule
In-time mold delivery.
In-time mold test and sample delivery
Do you need assistance?
Our experienced team would be pleased to support you with any technical and commercial questions you may have. We are convinced to find the perfect solution for your application by using existing products or developing individual parts. Feel free to contact us at any time.
Welcome to send inquiry!
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| Warranty: | Negotiable |
|---|---|
| Shaping Mode: | Injection Mould |
| Surface Finish Process: | Polishing |
| Mould Cavity: | Multi Cavity |
| Plastic Material: | ABS |
| Process Combination Type: | Single-Process Mode |
| Customization: |
Available
| Customized Request |
|---|
Can plastic gears withstand high torque and load conditions?
Plastic gears have certain limitations when it comes to withstanding high torque and load conditions. Here’s a detailed explanation of their capabilities:
Plastic gears can be designed and manufactured to handle a range of torque and load conditions, but their performance is generally inferior to that of metal gears in high-stress applications. The specific capabilities of plastic gears depend on various factors, including the chosen plastic material, gear design, tooth profile, and operating conditions.
While plastic gears may not be suitable for extremely high torque or heavy-load applications, they can still provide reliable performance in many moderate-load scenarios. Plastic gears are commonly used in applications with light to moderate loads, where their unique properties and advantages outweigh their limitations.
Some plastic materials, such as acetal (POM) and polyamide (nylon), offer good strength and wear resistance, allowing them to handle moderate torque and load conditions. These materials can be reinforced with additives or fillers to enhance their mechanical properties and increase their load-bearing capacity.
It’s important to note that when designing with plastic gears, engineers must carefully consider factors such as gear size, tooth geometry, material selection, and operating conditions. Reinforcement techniques, such as using metal inserts or reinforcing fibers, may be employed to improve the strength and load-bearing capabilities of plastic gears in certain applications.
In high torque or heavy-load applications, metal gears, particularly those made from steel or other high-strength alloys, are generally preferred due to their superior strength and durability. Metal gears offer higher load capacities, better resistance to deformation, and increased resistance to wear under extreme conditions.
Ultimately, the suitability of plastic gears for high torque and load conditions depends on the specific requirements of the application and the trade-off between the benefits of plastic gears, such as weight reduction and noise reduction, and the higher load-bearing capabilities of metal gears.
It’s recommended to consult with gear manufacturers or mechanical engineers to determine the most appropriate gear material and design for a particular application, especially when high torque and load conditions are expected.
Are there specific design considerations for using plastic gears?
Yes, there are specific design considerations that need to be taken into account when using plastic gears. Here’s a detailed explanation of these considerations:
1. Material Selection: Choosing the right plastic material for the gear application is crucial. Different plastic materials have varying mechanical properties, such as strength, stiffness, and wear resistance. Consider factors such as load-bearing requirements, operating temperatures, environmental conditions, and compatibility with lubricants. It’s important to select a plastic material that can withstand the specific demands of the application.
2. Gear Geometry: The design of plastic gears should consider factors such as tooth profile, module or pitch, pressure angle, and tooth thickness. The gear geometry should be optimized to ensure proper meshing, efficient power transmission, and minimal noise and vibration. The design should also take into account the limitations and capabilities of the plastic material, such as its ability to form precise tooth profiles and maintain dimensional stability.
3. Clearances and Tolerances: Plastic gears may require different clearances and tolerances compared to metal gears. The coefficient of thermal expansion, dimensional stability, and manufacturing processes of plastic materials can affect the gear clearances. It’s important to consider the thermal expansion characteristics of the specific plastic material and provide appropriate clearances to accommodate temperature variations. Tight tolerances may result in binding or increased friction, while excessive clearances can lead to backlash and reduced gear accuracy.
4. Load Distribution: Distributing the load evenly across the gear teeth is essential for preventing premature wear and failure. Consider gear design elements such as tooth profile, tooth width, and the number of teeth to optimize load distribution. Reinforcing the gear teeth with fillets or other strengthening features can help improve load-bearing capacity and reduce stress concentrations.
5. Stiffness and Deflection: Plastic gears generally have lower stiffness compared to metal gears. The design should consider the potential for deflection or deformation under load. It may be necessary to increase the gear size, modify the tooth geometry, or incorporate additional support structures to enhance stiffness and minimize deflection. Analytical tools and simulations can be employed to assess and optimize gear design for stiffness and deflection.
6. Lubrication and Wear: Proper lubrication is important for the performance and durability of plastic gears. Consider the lubrication requirements of the specific plastic material and design features that facilitate effective lubricant distribution. Pay attention to potential wear mechanisms, such as adhesive wear or abrasive wear, and incorporate measures to minimize wear, such as optimized tooth profiles, lubricant selection, and sealing mechanisms.
7. Environmental Factors: Plastic gears may be subjected to various environmental factors such as temperature extremes, humidity, chemicals, and UV exposure. Evaluate the potential impact of these factors on the gear material and design. Select plastic materials that offer resistance to environmental degradation and consider protective measures, such as coatings or encapsulation, to enhance the gear’s resistance to environmental conditions.
8. Manufacturability: Consider the manufacturability of plastic gears during the design phase. Different plastic materials may have specific requirements or limitations for manufacturing processes such as injection molding or machining. Design features that facilitate efficient and cost-effective production, such as draft angles, parting lines, and tooling considerations, should be taken into account.
By considering these specific design considerations, such as material selection, gear geometry, clearances, load distribution, stiffness, lubrication, environmental factors, and manufacturability, it’s possible to optimize the design and performance of plastic gears for various applications.
What are the advantages of using plastic gears in machinery?
Plastic gears offer several advantages when used in machinery. Here’s a detailed explanation of the advantages of using plastic gears:
- Lightweight: Plastic gears are significantly lighter in weight compared to metal gears. This lightweight characteristic is particularly beneficial in applications where weight reduction is important, as it can contribute to energy efficiency, lower inertia, and reduced wear on supporting components.
- Low Noise and Vibration: Plastic gears have inherent damping properties, which help reduce noise and vibration levels during operation. The ability to absorb and dissipate vibrations leads to quieter machinery, making plastic gears suitable for applications where noise reduction is desired, such as in consumer electronics or office equipment.
- Corrosion Resistance: Certain plastic materials used in gear manufacturing exhibit excellent resistance to corrosion and chemicals. This makes plastic gears suitable for applications in corrosive environments, where metal gears may suffer from degradation or require additional protective coatings.
- Self-Lubrication: Some plastic materials used for gear manufacturing have self-lubricating properties. These materials can reduce friction and wear between gear teeth, eliminating the need for external lubrication. Self-lubricating plastic gears can simplify maintenance requirements and reduce the risk of lubricant contamination or leakage in machinery.
- Cost-Effective: Plastic gears can be more cost-effective compared to metal gears, especially in large-scale production. Plastic materials are often less expensive than metals, and the manufacturing processes for plastic gears can be more efficient, resulting in lower overall production costs. This cost advantage makes plastic gears an attractive option for applications where budget considerations are important.
- Design Flexibility: Plastic gears offer greater design flexibility compared to metal gears. Plastic materials can be easily molded into complex shapes, allowing for the creation of custom gear profiles and tooth geometries. This design flexibility enables gear optimization for specific applications, improving performance, efficiency, and overall machinery design.
- Electrical Insulation: Plastic gears provide electrical insulation properties, which can be advantageous in machinery where electrical or electronic components are in close proximity to the gears. The electrical insulation helps prevent the risk of electrical short circuits or interference caused by metal gears coming into contact with conductive parts.
It’s important to note that while plastic gears offer unique advantages, they also have limitations. They may not be suitable for applications requiring extremely high torque, high temperatures, or where precise positioning is critical. The selection of plastic gears should consider the specific requirements of the machinery and the mechanical properties of the chosen plastic material.
editor by CX 2024-03-26