Product Description
Product description
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Material |
Materials for silicon,fluorine,NBR,FPM,EPDM,SILCONE ACM,HNBR |
| Inspection Equipments | Excellent chemical and physical property, excellent oil- resistance, high temperature stability, etc. |
| Tolerance | +/-0.05mm |
| Drawing Format | PDF/DWG/DXF/IGS/STEP,etc |
| Application field | Parts are used on vehicles, printing machines, food processing machines, textile machines, electronic machines, etc. |
| Manufacturing process | CNC machining Broaching, Drilling, Milling, Other Machining Services, Rapid Prototyping, Turning, |
| Shape | As per your drawing Or your sample |
| Color service | Customization |
| QC inspection |
Make sure 100% inspection before the delivery |
| Advantages | Maintenance,acturally HRC coupling doesn’t need maintenance. |
| Environmental, elastic components make HRC coupling applies to a variety of working conditions. | |
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Reliable transmission, in case of elastic component is damaged, the dog segment wichcasted siamesedly still keep the transmission processing reliably. |
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Economic, HRC couplings have already been made of optimization design,which make transmission power match the transmission shaft diameter. |
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| Good recovery capacity, elastic components can reduce the load at the CHINAMFG moments, and the deviation is a major consideration when designing. | |
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Adaptability of misalignment, HRC can coupling contains parallel shift, angle shift and axis shift which happen some times. |
Application and analysis
Our warehouse
Custom rubber parts
Custom plastic parts
Packing & Delivery
Packaging Details: plastic bag packing inside, carton packing outside, or customized packing.
Port:Xihu (West Lake) Dis.g port, ZheJiang city.
Lead Time :
| Quantity(Pieces) | 1 – 1000 | 1001 – 10000 | 10001 – 50000 | >50000 |
| Est. Time(days) | 5 | 12 | 18 | To be negotiated |
Place order steps
Our Services:
1. Convenient: 24th Hours sales/After-sales Service online or on the phone.
2. Quality Assurance: We will discuss with you and supply you the best quality comfortable to your market.
3. Quick delivery: Time is money, we promise we always will deliver the goods quicker than others.
4. According to customers’ drawing,customized specifications are welcomed.
5. Small orders can be accepted.
Packing
Company Profile
SHEN ZHOU CHINAMFG RUBBER & PLASTIC CO.,LTD was founded in 2000. The factory located in industrial zone of HangZhou city, ZheJiang province, china.
We have Plastic injection molding workshop and rubber compression molding workshops.Our main products includes Bakelit Knobs,Pull Handle,rubber door stops, door guard, roller, rubber bumpers, Rubber grommets, vibration dampers, seals, plastic corner, injection plastic brackets, injection plastic shell.to undertake various kinds of rubber molding and plastic injection parts, customize according to drawing and samples.
The products have been exported to America, Europe, Oceania, Middle East, Southeast Asia and other regions and countries, and hope to build more business Cooperation with new client from all over the world.
FAQ
Q1: Are you a manufacturer or a trading company?
A1: We are the original manufacturer of custom rubber parts and custom plastic parts.
Q2: Where is your company located?
A2: Our company is located in HangZhou City, ZheJiang Province, China.
Q3: Could I get free samples?
A3: We could provide small samples for free, but air freight or sea freight should be borne by customer side.
Q4: What should I provide in order to get an offer?
A4: Customers are required to provide material, inner diameter, outer diameter, cross section distance and quantity.
Q5: How is the goods packed by your factory?
A5: The goods are normally packed by plastic bags, carton boxes with pallets or wooden boxes.
Q6: What are the incoterms applied?
A6: The incoterms applied are FOB, CIF and CFR.
Q7: What are the payment terms accepted?
A7: We accept Alibaba Trade Assurance, T/T, L/C and West Union.
Q8: What about the delivery time?
A8: The goods are normally dellivered to customer side within 7-30 days based CHINAMFG the mode of transport required.
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What are the torque and speed ratings for different sizes of flexible couplings?
The torque and speed ratings of flexible couplings can vary depending on their size, design, and material. Manufacturers typically provide specifications for each specific coupling model to ensure it is suitable for the intended application. Below are some general considerations regarding torque and speed ratings for different sizes of flexible couplings:
Torque Ratings:
The torque rating of a flexible coupling is the maximum amount of torque it can reliably transmit without experiencing excessive deformation or failure. It is essential to choose a coupling with a torque rating that exceeds the torque requirements of the application to ensure proper operation and avoid premature wear. Torque ratings are typically specified in Nm (Newton-meters) or lb-ft (pound-feet).
The torque capacity of a flexible coupling can increase with its size and design. Larger couplings, which have more substantial components and a larger flexible element, often have higher torque ratings compared to smaller couplings. Additionally, couplings with a more robust design, such as metallic couplings, generally have higher torque capacities compared to elastomeric couplings.
Speed Ratings:
The speed rating of a flexible coupling is the maximum rotational speed it can withstand while maintaining its structural integrity and performance. It is critical to select a coupling with a speed rating suitable for the application’s operating speed to avoid excessive wear and potential coupling failure. Speed ratings are typically specified in revolutions per minute (RPM).
Like torque ratings, the speed rating of a flexible coupling can be influenced by its size, design, and material. Larger couplings with more robust construction can often handle higher rotational speeds compared to smaller couplings. Metallic couplings, with their stiffer and more precise design, can also have higher speed ratings compared to elastomeric couplings.
Consulting Manufacturer Specifications:
To determine the torque and speed ratings for specific sizes of flexible couplings, it is essential to consult the manufacturer’s product specifications or technical datasheets. These documents provide detailed information about the coupling’s capabilities, including torque and speed ratings for each available size and model.
Application Considerations:
When selecting a flexible coupling, it is crucial to consider the torque and speed requirements of the specific application. Factors such as the power transmitted, the rotational speed of the machinery, and any transient or shock loads should be taken into account to ensure the selected coupling can handle the demands of the system.
Summary:
The torque and speed ratings of flexible couplings can vary based on their size, design, and material. Manufacturers provide specific torque and speed ratings for each coupling model to ensure their suitability for different applications. Consulting manufacturer specifications and considering the application’s requirements are vital in selecting the right flexible coupling that can handle the torque and speed demands of the mechanical system.

What are the differences between single and double flexible coupling designs?
Single and double flexible couplings are two common designs used for power transmission in various mechanical systems. Here are the main differences between the two:
- Design: The primary difference lies in their configuration. A single flexible coupling consists of one flexible element connecting two shafts, while a double flexible coupling, also known as a two-piece flexible coupling, uses two flexible elements with an intermediate shaft in between. The double flexible coupling resembles two single couplings connected in series.
- Torsional Flexibility: Single flexible couplings typically provide greater torsional flexibility than double flexible couplings. The presence of an intermediate shaft in the double coupling design adds some rigidity and reduces the overall torsional flexibility of the system.
- Compensation of Misalignment: Both single and double flexible couplings can compensate for angular and parallel misalignment between shafts. However, due to its additional flexible element, the double flexible coupling may have slightly better misalignment compensation capabilities.
- Length and Space: Single flexible couplings are generally shorter in length compared to double flexible couplings. The double flexible coupling’s design requires additional space to accommodate the intermediate shaft, making it longer than the single coupling.
- Shaft Separation: Single flexible couplings connect the two shafts directly without any intermediate components, while the double flexible coupling separates the shafts using an intermediate shaft. This shaft separation in the double design can be advantageous in certain applications.
- Stiffness: The double flexible coupling tends to be slightly stiffer than the single flexible coupling due to the presence of the intermediate shaft, which may affect its ability to absorb vibrations and shock loads.
- Application: Single flexible couplings are commonly used in various applications, including pumps, compressors, fans, and general power transmission systems. Double flexible couplings are often preferred in applications where a higher level of torsional stiffness is required, such as certain industrial machinery.
Both single and double flexible coupling designs have their advantages and are suitable for different types of machinery and power transmission requirements. The choice between the two depends on factors such as the specific application, the level of misalignment compensation needed, the available space, and the desired torsional flexibility for the system.

How do you select the appropriate flexible coupling for a specific application?
Choosing the right flexible coupling for a specific application requires careful consideration of various factors to ensure optimal performance, reliability, and longevity. Here are the key steps to select the appropriate flexible coupling:
- Application Requirements: Understand the specific requirements of the application, including torque and speed specifications, misalignment conditions, operating environment (e.g., temperature, humidity, and presence of corrosive substances), and space limitations.
- Torque Capacity: Determine the maximum torque that the coupling needs to transmit. Choose a flexible coupling with a torque rating that exceeds the application’s requirements to ensure a safety margin and prevent premature failure.
- Misalignment Compensation: Consider the type and magnitude of misalignment that the coupling needs to accommodate. Different coupling designs offer varying degrees of misalignment compensation. Select a coupling that can handle the expected misalignment in the system.
- Vibration Damping: If the application involves significant vibrations, choose a flexible coupling with good damping properties to reduce vibration transmission to connected equipment and improve system stability.
- Environmental Factors: Take into account the environmental conditions in which the coupling will operate. For harsh environments, consider couplings made from corrosion-resistant materials.
- Torsional Stiffness: Depending on the application’s requirements, decide on the desired torsional stiffness of the coupling. Some applications may require high torsional stiffness for precise motion control, while others may benefit from a more flexible coupling for shock absorption.
- Cost and Life-Cycle Considerations: Evaluate the overall cost-effectiveness of the coupling over its expected life cycle. Consider factors such as initial cost, maintenance requirements, and potential downtime costs associated with coupling replacement.
- Manufacturer Recommendations: Consult coupling manufacturers and their technical specifications to ensure the selected coupling is suitable for the intended application.
- Installation and Maintenance: Ensure that the selected flexible coupling is compatible with the equipment and shaft sizes. Follow the manufacturer’s installation guidelines and recommended maintenance practices to maximize the coupling’s performance and longevity.
By following these steps and carefully evaluating the application’s requirements, you can select the most appropriate flexible coupling for your specific needs. The right coupling choice will lead to improved system performance, reduced wear on equipment, and enhanced overall reliability in various mechanical systems and rotating machinery.


editor by CX 2024-01-10