|Item Name||Cushioned Sleeve Bearing Coupling Flexible Coupling NBR Jaw Coupling for Pumps, Motors|
|Application||motor, pumps, gear boxes, compressors, blowers, mixers, and conveyors
|Color||black or as Customer’s Request|
5mm To 8mm (customized)
|Package||According to Your Requirements|
|Processing Method||Compression Molding|
|Service||OEM and ODM Are Also Welcomed|
|Material||Customized. Aluminum, Stainless Steel,NR,SBR, NBR, EPDM, MQ, SR etc.|
|Sample||Available. Trial Sample 7 to 20 days.|
These stainless steel shaft couplers allow you to couple 2 size shafts together. They can be used for connecting motor shafts to drive shafts, or 2 different-sized shafts. These shaft couplers have a length of 0.75″, a outer diameter of 0.42″, and couple 1/4″ to 5mm shafts.
Connect this to that with a set-screw coupler. These couplers are made of machined aluminum and have a spiral cut that makes them slightly flexible so they can be fit to 2 shafts even if they are not perfectly co-linear and will help reduce binding effects.
This coupler will connect a 5mm diameter shaft to an 8mm diameter shaft. A perfect add on for motors. Comes with 2 sets of double set-screws (two per side) for secure attachment. You’ll need a 2mm allen wrench to tighten/loosen the set-screws.
Total Number of Personnel:>350 staffs (as of June.24, 2571)
Total Production scale: >35000 square meters
Head Office: HangZhousun Rubber & Plastic Technology Co.,Ltd
Location: HangZhou, ZheJiang
Main Business: Compression Molding Rubber Products & Parts, etc.
Branch Company: HangZhou Mingrui Intelligent Technology Co., Ltd
Location: HangZhou, ZheJiang
Main Business: Molds, Refined Hardware, Intelligent Automation Equipment, etc.
Branch Company: ZheJiang Yousheng New Material Technology Co.,Ltd
Location: HangZhou, ZheJiang
Main Business: Extrusion Molding Rubber Products & Parts, etc.
R&D and Quality Control
HangZhousun’s R&D team has more than 120 staff ,and gathers CHINAMFG and creative experts and professors.
Keeping responsibility in mind, R&D team brings multiple capabilities, supports HangZhousun keep leading at rubber&plastics industry.
R&D team forms strict management system on each project in compliance with latest world scientific standard and requirements.
We strictly emphasize on quality and management control.
Our R&D and production management follows TUV & IS014001 Environmental System.
Beyond these, Our finished products meet approval of ISO9001, IATF16949 & UL quality control system.
HangZhousun can make our products meet standards as customer’s demand like CE, ROHS, REACH, CP65, PAHS, FDA, TSCA,etc.
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Using Jaw Couplings in Precision Motion Control Systems
Jaw couplings are versatile mechanical couplings commonly used in various industrial applications for transmitting torque between two shafts. While they offer many benefits such as simplicity, cost-effectiveness, and ease of installation, they may not be the best choice for precision motion control systems that require extremely accurate and repeatable positioning. The following factors should be considered when using jaw couplings in precision motion control systems:
- Backlash: Jaw couplings typically have some degree of backlash due to the clearance between the jaws and the spacers. This can introduce positional errors and limit the ability to achieve precise movements, especially in systems that require bidirectional positioning.
- Angular and Parallel Misalignment: While jaw couplings can accommodate some degree of misalignment, precision motion control systems often require tight tolerances and minimal misalignment to achieve accurate positioning. In such cases, more rigid and flexible couplings, such as servo couplings or beam couplings, may be preferred.
- Torsional Stiffness: In precision motion control, minimizing torsional wind-up and maintaining torsional stiffness is essential for precise and responsive movements. Jaw couplings may not provide the required level of torsional stiffness needed for high-performance motion control applications.
- Resonance and Vibration: In precision motion systems, avoiding resonance and minimizing vibration is crucial for stability and accuracy. The damping characteristics of jaw couplings may not be sufficient to suppress vibrations and resonant frequencies, which can adversely affect performance.
While jaw couplings are widely used in general industrial applications, precision motion control systems often demand more specialized and precise coupling solutions. Some alternatives that are better suited for precision motion control applications include servo couplings, beam couplings, and disc couplings. These couplings offer higher torsional stiffness, lower backlash, and better overall performance for demanding motion control requirements.
When selecting a coupling for precision motion control, it is essential to consider the specific requirements of the application, including torque, speed, misalignment, and stiffness, to ensure the chosen coupling can meet the precision and performance demands of the system.
How do jaw couplings handle axial movement in rotating machinery?
Jaw couplings are primarily designed to handle angular and parallel misalignment between rotating shafts. While they are not specifically designed for axial movement compensation, they can accommodate a limited amount of axial movement under certain conditions.
The ability of a jaw coupling to handle axial movement depends on the specific design of the coupling and the type of elastomer spider used. The elastomer spider serves as the flexible element between the two coupling hubs and is responsible for transmitting torque and compensating for misalignment. Some jaw couplings have an elastomer spider with axial flexibility, allowing the coupling to accommodate minor axial movements while maintaining effective torque transmission.
However, it is essential to note that jaw couplings have limitations regarding axial movement. They are not designed for significant axial loads or axial displacements. Excessive axial movement can lead to premature wear and damage to the elastomer spider, reducing the coupling’s performance and lifespan.
If an application requires significant axial movement compensation, other types of couplings may be more suitable. For instance, flexible beam couplings or bellows couplings are designed specifically to handle axial movement and are often used in applications where axial misalignment is a critical consideration.
In summary, while jaw couplings can handle a certain amount of axial movement, they are primarily intended for angular and parallel misalignment compensation. For applications with significant axial movement requirements, it is essential to consider coupling types explicitly designed for this purpose.
Limitations and Disadvantages of Using Jaw Couplings
While jaw couplings offer several advantages, they also have some limitations and disadvantages that should be considered when selecting them for specific applications:
- Angular Misalignment: Jaw couplings are sensitive to angular misalignment, and excessive misalignment can lead to increased wear and reduced service life.
- Radial Misalignment: Similar to angular misalignment, radial misalignment should be kept within acceptable limits to prevent premature wear.
- Temperature Limitations: The operating temperature range of jaw couplings may be limited by the material used. For high-temperature applications, other coupling types may be more suitable.
- Shock Load Absorption: While jaw couplings can handle moderate shock loads, they may not be ideal for applications with severe shock loads, which can lead to increased stress and failure.
- Torsional Stiffness: Jaw couplings have a certain level of torsional stiffness, which means they may not provide the same level of vibration isolation as other coupling types.
- Backlash: Jaw couplings can have some degree of backlash due to their elastomeric element, which may not be desirable in precision positioning applications.
- Speed Limitations: High-speed applications may require careful consideration of the jaw coupling’s design and material selection to avoid issues related to centrifugal forces.
Despite these limitations, jaw couplings remain a popular choice in many applications due to their ease of installation, simple design, and cost-effectiveness. Proper selection, installation, and maintenance can help mitigate some of these limitations and ensure optimal performance and reliability of the jaw coupling.
editor by CX 2023-10-02