Product Description

Rubber Flexible Couplings for Air Compressor CHINAMFG CHINAMFG CHINAMFG CHINAMFG Rand CHINAMFG CHINAMFG CHINAMFG CHINAMFG CHINAMFG HongHangZhouan Hitachi

Product Display:                                                                                                                                                        

Company information:                                                                                                                                              

YINGFENG CONSTRUCTION MACHINERY LIMITED / HangZhou CHINAMFG MACHINERY CO., LTD specialized in:

couplings, rubber mounts, gear parts , hydraulic seals and seal kits for hydraulic hammers, rock breakers, hydraulic excavators, wheel loaders, and backhoe loaders. 

And, Our Company also supply:

Engine Parts, hydraulic piston pump and hydraulic travel motor, Swing motor assembly and hydraulic component parts, electric parts, etc. Hydraulic hammer breaker parts with piston, cylinder, chisel, through bolt, side bolt, top bush, front head bushing, accumulator, valve, etc. 

The following seal kits we also can supply:
 
1.Main pump seal kit;
2.Hydraulic pump seal kit;
3.Regulater valve seal kit;
4.Plunger pump seal kit 
5.O ring box;
6.Gear pump seal repair kit,
7.Travel motor seal kit 
8.Breaker hammer seal kit;
9.Swing motor seal kit,
10.Lever seal kit;
11.Pilot valve seal kit/PPC seal;
12.Adjuster seal kit;
13.Center joint seal kit;
14.Turing joint seal kit;
15.Servo valve seal kit;
16.Boom cylinder seal kit;
17.Arm cylinder seal kit; 
18.Bucket cylinder seal kit;
19.Control valve seal kit. 

We always try our best for all our customers and make it better and better. Welcome!

A. More than 20 yease experience in the line of the market, produce high quality excavator spare parts.
B. Factory manufacturer, factory price, quality under control.
C. One-stop shopping. We supply with various spare parts for your need, with high quality at competitive price, one-stop shopping, save your time to searching the parts you need urgent.
D. Timely delivery. ( We can handle your urgent order within 24 hours as soon as we got the payment. And We will send the parts by DHL and Fedex Express. We will require DETAIL delivery address with postcodebefore shipment. So, It will be better if you cound notice us about it in advance.)
E. Various of transportation way: Sea, Air, Bus, Express, etc
F. Parts available in stock

OUR FACTORY:

Our excavator parts factory was set up in 1988 in HangZhou city,ZheJiang Province. And in year 2011 we set up the 2nd factory. Now we are the largest excavator rubber parts supplier in southern China. Factory occupies 10,, 4655134, EX3, ZAX460MTH, ZAX480MTH, 4636444, ZX470-3, EX470, ZAX470, ZAX450-3, ZAX450-3F, ZAX5, Atlas Copco,,

HPV102, 8DC8 8DC9, CHINAMFG TierII 522192, Xihu (West Lake) Dis.de 60, CHINAMFG 1,

Atlas Copco 385, CHINAMFG 396, CHINAMFG 415, CHINAMFG 416, CHINAMFG 455, CHINAMFG 485,

Atlas Copco 486,  CHINAMFG 786, CHINAMFG 836, CHINAMFG 976, CHINAMFG 6-712, 4DNV98

Chinese Brand Excavators: 

Lonking: 6085, 200

Liugong: 60, 205, 220, 906, 907, 908, 920, 925, 936, CLG906C, CLG922LG

Yuchai: YC50-8, YC60-8, YC60-8, YC135-8, YC230, YC230-8, YC230LC-8, YC360, YC85, YC50,  YC85-7, YC60-7, YC135

Sunward: 50, 60, 70, 150

Foton: FR85-7, FR65, FR80, FR150-7,

Zoomlion: 60, 205, 230, 360 

Sany: SY55, SY60, SY215, SY230, SY210, SY220, SY310 

XCMG: 60, 150, 700

Lovol: 210

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Industry Standards and Guidelines for Helical Couplings

While there are no specific industry standards dedicated solely to helical couplings, their design and application are influenced by general coupling standards and guidelines:

• AGMA Standard: The American Gear Manufacturers Association (AGMA) provides guidelines and standards related to couplings, including helical couplings. Their standards cover aspects like design, selection, and application considerations for flexible couplings.
• ISO Standards: The International Organization for Standardization (ISO) also offers standards related to flexible couplings. ISO standards provide recommendations for design principles, performance characteristics, and testing procedures.
• Manufacturer Recommendations: Coupling manufacturers often provide specific guidelines for the design, installation, and maintenance of their products. These recommendations are based on engineering principles and practical experience.

When designing and using helical couplings, engineers should consider these industry standards and guidelines to ensure proper performance, reliability, and safety. Adhering to recognized standards helps ensure that helical couplings are selected, installed, and operated correctly in various mechanical systems.

Variations of Helical Couplings for Specific Uses

Helical couplings come in various variations, each designed to suit specific applications and requirements:

• Flexible Helical Couplings: These couplings are designed to provide flexibility to accommodate misalignments and torsional vibrations. They are commonly used in applications where shaft misalignment is expected.
• Rigid Helical Couplings: Rigid helical couplings are designed to provide a more solid connection between shafts, offering minimal flexibility. They are suitable for applications where precise torque transmission and accurate positioning are crucial.
• Beam Helical Couplings: Beam-style helical couplings use thin metal beams to transmit torque while allowing for some misalignment. They are often used in applications that require high torsional stiffness and minimal backlash.
• Bellows Helical Couplings: Bellows couplings use accordion-like bellows to compensate for misalignment and provide vibration damping. They are commonly used in applications that require high torsional flexibility and protection from external contaminants.
• Oldham Helical Couplings: Oldham couplings use three discs: a central disc sandwiched between two outer discs with perpendicular slots. They offer excellent misalignment compensation and are often used in motion control systems.
• Helical-Beam Couplings: These couplings combine the flexibility of beam couplings with the misalignment compensation of helical couplings. They are suitable for applications that require both flexibility and misalignment tolerance.
• Slit Helical Couplings: Slit couplings have a slit design that allows for easy installation and removal without the need to disassemble the entire system. They are commonly used in applications where frequent maintenance is required.

The availability of these variations allows engineers and designers to select the most suitable type of helical coupling based on the specific needs of their application.

Diagnosing and Addressing Issues with Helical Couplings in Machinery Systems

Diagnosing and addressing issues related to helical couplings in machinery systems require a systematic approach:

• Visual Inspection: Regularly inspect the coupling for signs of wear, misalignment, or damage, such as cracks, corrosion, or deformation.
• Noise and Vibration: Unusual noise or increased vibration can indicate coupling problems. Use vibration analysis tools to identify issues and their severity.
• Power Transmission Issues: If you notice a decrease in power transmission efficiency or sudden changes in torque, it may be due to coupling problems.
• Temperature Changes: Abnormal temperature increases in the coupling area could indicate friction or misalignment issues.
• Lubrication: Check the lubrication of the coupling regularly. Insufficient or contaminated lubricant can lead to increased wear and poor performance.
• Alignment: Ensure that the coupling is properly aligned. Misalignment can cause premature wear and reduce the coupling’s lifespan.
• Fasteners: Examine fasteners like set screws or clamping elements. Loose or damaged fasteners can affect coupling performance.
• Replace Damaged Parts: If you identify worn or damaged parts, replace them promptly with genuine replacement components.
• Balancing: Imbalance can lead to vibration and wear. Balance the coupling if necessary.
• Proper Installation: If the coupling was recently installed, ensure it was installed correctly and according to the manufacturer’s guidelines.
• Consult Experts: If you’re unsure about diagnosing or addressing issues, consult with experts or engineers who specialize in coupling systems.

By conducting regular inspections, monitoring performance, and addressing issues promptly, you can maintain the optimal functioning of helical couplings in your machinery systems.

editor by CX 2024-02-21