Product Description
Rubber Spider Coupling Characteristic:
1. Performance Shock Absorber
2. Low Compression Deformation
3. Corrosion Resistance
4. Oil Resistance
5. High Pressure Resistance
6. Wear Resistance
Rubber Material Compare
| E – Excellent G – Good F – Fair P – Poor | |||||||||||
| Material Properties | |||||||||||
| Property | NBR | EPDM | CR | Silicone | FKM | NR | SBR | PU | HNBR | FVMQ | IIR |
| Abrasion Resistance | G | G | G | P | G | E | E | E | G | P | G |
| Acid Resistance | F | G | F | F | E | F | F | P | E | F | G |
| Chemical Resistance | F | E | F | G | E | F | F | F | G | E | E |
| Cold Resistance | G | G | F | E | P | G | G | G | G | G | G |
| Compression Set Resistance | G | G | F | G | E | G | G | F | G | G | F |
| Dynamic Properties | G | G | F | P | G | E | E | E | G | P | F |
| Electrical Properties | F | G | F | E | F | G | G | F | F | E | G |
| Elongation | G | G | G | F | F | F | F | F | G | F | G |
| Flame Resistance | P | P | G | F | E | P | P | P | P | G | P |
| Heat Resistance | G | G | G | E | E | F | F | F | E | E | G |
| Impermeability | G | G | G | P | G | F | F | G | G | P | E |
| Oil Resistance | E | P | F | F | E | P | P | G | E | G | P |
| Ozone Resistance | P | E | G | E | E | P | P | E | G | E | G |
| Tear Resistance | F | G | F | P | F | G | G | G | F | P | G |
| Tensile Strength | G | G | G | P | G | E | E | E | E | F | G |
| Water Resistance | G | E | F | G | F | G | G | P | E | F | G |
| Weather Resistance | F | E | E | E | E | F | F | E | G | E | G |
Why Us:
We have a fully-equipped workshop that meets ISO 9001:2015 and IATF 16949:2016 requirements. All products are compliant
with FDA, WRAS, UL, RoHS and REACH standards, and meet DIN, JIS and ASTM regulations. Material report and dimension
checking report are available.
1. Quality Approvals. More than 15 years professional manufacture experience.
2. Experienced Staff and Service. Professional R&D team, production team, sales team, after-sales service team.
3. Product Performance and affordable cost. Superior performance with most competitive price.
4. Prompt Delivery. Faster delivery time.
5. Small Orders Accepted.
| Material | Rubber Metal Bonded, NR Rubber, SBR Rubber, Carbon Steel, Stailess Steel |
| Material Report | FDA, ROHS, UL, WRAS and REACH |
| Dimension | Standard Sizes or As per customers’ Requirement |
| Certifications | ISO9001,IATF16949,ISO14001 |
| Color | Any colors according to PANTONE or RAL |
| Surface Finish | Texture (VDI/MT standard, or made to client’s sample), polished (high polish, mirror polish), smooth, painting, powder coating, printing, electroplating etc. |
| Service | Custom Made or OEM and ODM |
| Free Samples | Okay |
| Production Ways | CAD Drawing, 3D Files or Samples |
| Production Capacity | 200T,300T and 500T Compressing Molding, Injection Molding, Auto Vacuum Vulcanizing, Plastic Injection, and Extrusion |
| Supplying Capacity | One Million Pieces/ Month |
| Tolerance | Generally±0.05mm or Better |
| QC | PPAP, In House Control, Third Party Inspection Institution such SGS, TUV |
| Lead Time | 15 Days for Molding, 15-20 Days for Series Production |
| Application | Industry Machinery,Automotive,Mechanical Equipment, Construction, House Application, Medical Machine |
| More Parts |
Grommet, sleeve, feet, gasket, wheel, bellow, cap, dust cover, pad, washer, Strip, plug, stopper, grip, seal, bushing, bumper, blocks, and anti vibration mounts etc. |
Supplying Standard and Customized Rubber & Plastic Parts
Established in 2004, Xihu (West Lake) Dis. Rubber is specialized in providing quality customized rubber molding,
extrusion parts, plastic injection products and some standard parts.
Meeting Various Standards
We have a fully-equipped workshop that meets ISO 9001:2015 and IATF 16949:2016 requirements.
Our products are compliant with FDA, WRAS, UL, RoHS and REACH standards, and meet DIN, JIS
, BS and ASTM regulations.
Parts include, but are not limited to:
Grommet, sleeve, feet, gasket, wheel, bellow, cap, dust cover, pad, washer, Strip, plug, stopper, grip,
seal, bushing, bumper, blocks, and anti vibration mounts etc.
FAQ
1. What types of rubber do you use?
Xihu (West Lake) Dis. Rubber has extensive experience in a vast range of rubber, including: Natural Rubber, SBR, CR, NBR, HNBR,
EPDM, Silicone Rubber, FPM, ACM, FK etc.
2. What types of plastic do you use?
Xihu (West Lake) Dis. Rubber has extensive experience in a vast range of plastics, including: ABS, Polypropylene (PP), PVC, POM,
PE, PEEK, Polyamide (PA) Nylons, PBT, etc.
3. What services do you provide?
We offer a broad range of services, including, Custom Rubber Molding, Liquid Injection Molding, Rubber Extrusion, and
Rubber/Plastic to Metal Bonded Parts.
4. Why us?
4.1 More than 15 years professional manufacture experience.
4.2 Professional R&D team, production team, sales team, after-sales service team.
4.3 Superior performance with most competitive price.
4.4 Faster delivery time.
5. Perfect quality control process
5.1 Raw material inspection
All raw materials before warehousing must be tested, and the corresponding physical property report shall be issued,
and compared with the physical property report of raw materials. Only when the test values of the 2 physical property
reports are consistent, can they be warehoused.
5.2 Mold inspection
After mold development or cleaning, we will check the full size of the mold to ensure that the quality of each cavity is
the same.
5.3 Product inspection
In the process of product production, inspectors regularly inspect the semi-finished products to ensure the rationality
of the process and control the defective rate within a reasonable range.
5.4 Finished product inspection
The double inspection can ensure that the product appearance and size are 100% qualified.
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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.
What are the common signs of wear and failure in jaw couplings?
Jaw couplings are reliable components, but like any mechanical part, they can experience wear and eventually fail if not properly maintained or replaced when necessary. Here are some common signs of wear and failure to look out for in jaw couplings:
- Excessive Vibration: Increased vibration during operation may indicate wear in the elastomer spider or misalignment between the coupling hubs. Excessive vibration can lead to further damage and should be addressed promptly to prevent more significant issues.
- Abnormal Noise: Unusual noises, such as rattling, clanking, or squeaking sounds, can indicate wear, misalignment, or damage in the jaw coupling. A well-functioning jaw coupling should operate smoothly and quietly.
- Visible Cracks or Damage: Inspect the jaw coupling regularly for any visible cracks, tears, or damage to the elastomer spider or coupling hubs. Cracks in the elastomer can lead to reduced torque transmission and compromise the coupling’s performance.
- Loose or Displaced Spider: A loose or displaced elastomer spider may result from wear or improper installation. The spider should fit securely between the coupling hubs. Any sign of misalignment or gaps in the spider indicates potential wear or failure.
- Increased Heat: Excessive heat generation in the jaw coupling could indicate high levels of friction or misalignment, leading to wear on the elastomer spider. Elevated temperatures can accelerate wear and shorten the coupling’s lifespan.
- Shaft Misalignment: If you notice misalignment between the connected shafts, it can be a sign that the jaw coupling is no longer compensating for misalignment properly. This can lead to increased stress on the shafts and coupling components.
- Reduced Performance: A jaw coupling nearing the end of its service life may experience reduced torque transmission and compromised rotational speed control. As the elastomer spider wears, the coupling’s ability to transmit torque efficiently diminishes.
- Unexpected Downtime: Frequent unexpected shutdowns or downtime may indicate coupling failure. Sudden coupling failure can lead to costly equipment damage and unplanned production halts.
It is essential to conduct regular maintenance and inspections to detect these signs of wear and failure early. Preventive measures such as proper lubrication, alignment checks, and timely replacement of worn elastomer spiders can extend the life of the jaw coupling and prevent unexpected failures.
If any of these signs are observed, it is advisable to consult coupling manufacturers or maintenance professionals for a thorough assessment and appropriate corrective actions.
Types of Jaw Coupling Designs
Jaw couplings come in various designs to meet different application requirements. The main types include:
- One-Piece Jaw Coupling: This design consists of a single piece of material, typically made of steel or aluminum. It offers simplicity and compactness, making it suitable for light to medium-duty applications.
- Two-Piece Jaw Coupling: This design features two separate hubs with a flexible spider placed in between. The two-piece design allows for easier assembly and disassembly, making it convenient for maintenance and replacement of the elastomeric spider.
- Three-Piece Jaw Coupling: In this design, the coupling includes three parts: two hubs and an insert. The hubs are typically made of metal, while the insert is an elastomeric element (spider). Three-piece jaw couplings provide better damping of vibrations and are commonly used in applications where vibration isolation is crucial.
- Customizable Jaw Coupling: Some manufacturers offer customizable jaw couplings, allowing customers to choose different hub styles, materials, and spider hardness to tailor the coupling’s performance for specific applications.
Each design has its advantages and is selected based on factors such as torque requirements, misalignment compensation, and ease of maintenance.
editor by CX 2024-04-17