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China high quality Industrial Transmission Gear Reducer Conveyor Parts China Standard C208ah/C208ahl Double Pitch Conveyor Chains

Product Description

Double Pitch Conveyor Chains

         ISO                Chain No.     ANSI Chain No. Pitch
P
mm
Roller diameter
d1max
mm
Width between inner plates
b1min
mm
Pin diameter
d2 max
mm
Pin length Inner plate depth
h2 max
mm
Plate thickness
T max
mm
Tensile strength
Q min
kN/lbf
Average tensile strength
Q0
kN
Weight per  meter
q
kg/m
Lmax  mm Lcmax    mm
C208AH C2040H 25.4 7.95 7.85 3.96 18.8 19.9 12 2.03 14.1/3205 17.2 0.65
C208AHL C2042H 15.88 1.00

CONVEYOR CHAIN DESIGNED AND MANUFACTURED FOR THE MOST DEMXIHU (WEST LAKE) DIS. OF ENVIRONMENTS

HangZhou Star Machine Technology Co.,ltd.  provides the highest quality materials and manufacturing methods to suit the most arduous of conveyor chain applications  – from the transport of biomass fuels, to the recycling industry, paper & pulp, cement, steel-work, the wood industry and food processing.
Our conveyor chains, sprocket wheels and attachments are case-hardened to achieve the optimum balance between strength, durability and resistance to wear.
Our manufacturing is focused on metric pitch conveyor chains that include:
International Standards DIN 8167/ISO 1977 M series
DIN 8165/ISO 1977 FV series
SMS 1968 S series

CONSTRUCTION OF THE CHAIN

Two different sizes of roller chain, showing construction.
There are 2 types of links alternating in the bush roller chain. The first type is inner links, having 2 inner plates held together by 2 sleeves or bushings CHINAMFG which rotate 2 rollers. Inner links alternate with the second type, the outer links, consisting of 2 outer plates held together by pins passing through the bushings of the inner links. The “bushingless” roller chain is similar in operation though not in construction; instead of separate bushings or sleeves holding the inner plates together, the plate has a tube stamped into it protruding from the hole which serves the same purpose. This has the advantage of removing 1 step in assembly of the chain.

VARIANTS DESIGN

Layout of a roller chain: 1. Outer plate, 2. Inner plate, 3. Pin, 4. Bushing, 5. Roller
If the chain is not being used for a high wear application (for instance if it is just transmitting motion from a hand-operated lever to a control shaft on a machine, or a sliding door on an oven), then 1 of the simpler types of chain may still be used. Conversely, where extra strength but the smooth drive of a smaller pitch is required, the chain may be “siamesed”; instead of just 2 rows of plates on the outer sides of the chain, there may be 3 (“duplex”), 4 (“triplex”), or more rows of plates running parallel, with bushings and rollers between each adjacent pair, and the same number of rows of teeth running in parallel on the sprockets to match. Timing chains on automotive engines, for example, typically have multiple rows of plates called strands.

USE

An example of 2 ‘ghost’ sprockets tensioning a triplex roller chain system
Roller chains are used in low- to mid-speed drives at around 600 to 800 feet per minute; however, at higher speeds, around 2,000 to 3,000 feet per minute, V-belts are normally used due to wear and noise issues.
A bicycle chain is a form of roller chain. Bicycle chains may have a master link, or may require a chain tool for removal and installation. A similar but larger and thus stronger chain is used on most motorcycles although it is sometimes replaced by either a toothed belt or a shaft drive, which offer lower noise level and fewer maintenance requirements.
The great majority of automobile engines use roller chains to drive the camshaft(s). Very high performance engines often use gear drive, and starting in the early 1960s toothed belts were used by some manufacturers.
Chains are also used in forklifts using hydraulic rams as a pulley to raise and lower the carriage; however, these chains are not considered roller chains, but are classified as lift or leaf chains.
Chainsaw cutting chains superficially resemble roller chains but are more closely related to leaf chains. They are driven by projecting drive links which also serve to locate the chain CHINAMFG the bar.

Sea Harrier FA.2 ZA195 front (cold) vector thrust nozzle – the nozzle is rotated by a chain drive from an air motor
A perhaps unusual use of a pair of motorcycle chains is in the Harrier Jump Jet, where a chain drive from an air motor is used to rotate the movable engine nozzles, allowing them to be pointed downwards for hovering flight, or to the rear for normal CHINAMFG flight, a system known as Thrust

WEAR

The effect of wear on a roller chain is to increase the pitch (spacing of the links), causing the chain to grow longer. Note that this is due to wear at the pivoting pins and bushes, not from actual stretching of the metal (as does happen to some flexible steel components such as the hand-brake cable of a motor vehicle).

With modern chains it is unusual for a chain (other than that of a bicycle) to wear until it breaks, since a worn chain leads to the rapid onset of wear on the teeth of the sprockets, with ultimate failure being the loss of all the teeth on the sprocket. The sprockets (in particular the smaller of the two) suffer a grinding motion that puts a characteristic hook shape into the driven face of the teeth. (This effect is made worse by a chain improperly tensioned, but is unavoidable no matter what care is taken). The worn teeth (and chain) no longer provides smooth transmission of power and this may become evident from the noise, the vibration or (in car engines using a timing chain) the variation in ignition timing seen with a timing light. Both sprockets and chain should be replaced in these cases, since a new chain on worn sprockets will not last long. However, in less severe cases it may be possible to save the larger of the 2 sprockets, since it is always the smaller 1 that suffers the most wear. Only in very light-weight applications such as a bicycle, or in extreme cases of improper tension, will the chain normally jump off the sprockets.

In industry, it is usual to monitor the movement of the chain tensioner (whether manual or automatic) or the exact length of a drive chain (one rule of thumb is to replace a roller chain which has elongated 3% on an adjustable drive or 1.5% on a fixed-center drive). A simpler method, particularly suitable for the cycle or motorcycle user, is to attempt to pull the chain away from the larger of the 2 sprockets, whilst ensuring the chain is taut. Any significant movement (e.g. making it possible to see through a gap) probably indicates a chain worn up to and beyond the limit. Sprocket damage will result if the problem is ignored. Sprocket wear cancels this effect, and may mask chain wear.

CHAIN STRENGTH

The most common measure of roller chain’s strength is tensile strength. Tensile strength represents how much load a chain can withstand under a one-time load before breaking. Just as important as tensile strength is a chain’s fatigue strength. The critical factors in a chain’s fatigue strength is the quality of steel used to manufacture the chain, the heat treatment of the chain components, the quality of the pitch hole fabrication of the linkplates, and the type of shot plus the intensity of shot peen coverage on the linkplates. Other factors can include the thickness of the linkplates and the design (contour) of the linkplates. The rule of thumb for roller chain operating on a continuous drive is for the chain load to not exceed a mere 1/6 or 1/9 of the chain’s tensile strength, depending on the type of master links used (press-fit vs. slip-fit)[citation needed]. Roller chains operating on a continuous drive beyond these thresholds can and typically do fail prematurely via linkplate fatigue failure.

The standard minimum ultimate strength of the ANSI 29.1 steel chain is 12,500 x (pitch, in inches)2. X-ring and O-Ring chains greatly decrease wear by means of internal lubricants, increasing chain life. The internal lubrication is inserted by means of a vacuum when riveting the chain together.

CHAIN STHangZhouRDS

Standards organizations (such as ANSI and ISO) maintain standards for design, dimensions, and interchangeability of transmission chains. For example, the following Table shows data from ANSI standard B29.1-2011 (Precision Power Transmission Roller Chains, Attachments, and Sprockets) developed by the American Society of Mechanical Engineers (ASME). See the references for additonal information.

ASME/ANSI B29.1-2011 Roller Chain Standard SizesSizePitchMaximum Roller DiameterMinimum Ultimate Tensile StrengthMeasuring Load25.
For mnemonic purposes, below is another presentation of key dimensions from the same standard, expressed in fractions of an inch (which was part of the thinking behind the choice of preferred numbers in the ANSI standard):
 

WHY CHOOSE US 
 

1.     Reliable Quality Assurance System
2.     Cutting-Edge Computer-Controlled CNC Machines
3.     Bespoke Solutions from Highly Experienced Specialists 
4.     Customization and OEM Available for Specific Application
5.     Extensive Inventory of Spare Parts and Accessories
6.     Well-Developed CHINAMFG Marketing Network 
7.     Efficient After-Sale Service System

We are not just a manufacturer and supplier, but also an industry consultant. We work pro-actively with you to offer expert advice and product recommendations in order to end up with a most cost effective product available for your specific application. The clients we serve CHINAMFG range from end users to distributors and OEMs. Our OEM replacements can be substituted wherever necessary and suitable for both repair and new assemblies.

Standard or Nonstandard: Standard
Application: Textile Machinery, Garment Machinery, Conveyer Equipment, Packaging Machinery, Electric Cars, Motorcycle, Food Machinery, Marine, Mining Equipment, Agricultural Machinery, Car, Food and Beverage Industry, Motorcycle Parts
Surface Treatment: Polishing, Polishing
Structure: Roller Chain, Roller Chain
Material: Alloy, Alloy
Type: Double Pitch Chain
Samples:
US$ 0/Meter
1 Meter(Min.Order)

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Customization:
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gear chain

What are the future trends and advancements in gear chain technology?

In the field of gear chain technology, several trends and advancements are shaping the future of this technology. Here are some key areas of development:

1. Material Innovations:

– Ongoing research is focused on developing new materials with enhanced properties for gear chains. This includes materials with improved strength, wear resistance, and corrosion resistance to extend the lifespan and performance of gear chains in various applications.

2. Advanced Lubrication Systems:

– Lubrication plays a vital role in the performance and longevity of gear chains. Future advancements include the development of self-lubricating or low-friction coatings that reduce the need for frequent lubrication and improve efficiency. Additionally, smart lubrication systems with sensors and monitoring capabilities may be implemented to optimize lubrication and detect potential issues.

3. Enhanced Efficiency:

– Gear chain manufacturers are continually working on improving the efficiency of their designs. This involves reducing friction losses, optimizing tooth profiles, and minimizing backlash. Advancements in computer-aided design (CAD) and simulation tools enable more accurate analysis and optimization of gear chain performance, leading to higher efficiency.

4. Noise and Vibration Reduction:

– Noise and vibration are important considerations in many applications. Future gear chain designs aim to reduce noise and vibration through improved tooth profiles, precision manufacturing processes, and the use of vibration-damping materials. This enhances operator comfort and reduces the overall noise level in the system.

5. Integrated Monitoring and Control:

– The integration of gear chain systems with advanced monitoring and control technologies is a significant trend. This includes the use of sensors, actuators, and real-time monitoring systems to gather data on gear chain performance, load conditions, and temperature. This information can be used for predictive maintenance, optimizing operation parameters, and preventing failures.

6. Digitalization and Connectivity:

– Gear chain systems are increasingly becoming part of the larger digital ecosystem in industrial automation. Integration with digital platforms and the Industrial Internet of Things (IIoT) allows for real-time monitoring, remote diagnostics, and data-driven decision-making. This enables improved system performance, maintenance efficiency, and overall productivity.

7. Application-Specific Designs:

– Future advancements in gear chain technology will focus on catering to specific industry requirements and applications. Customized gear chain designs, such as those for high-speed, high-torque, or extreme environment applications, will continue to be developed to meet the unique demands of different industries.

Overall, the future of gear chain technology is driven by the pursuit of higher efficiency, improved reliability, and enhanced performance through material advancements, lubrication innovations, digitalization, and application-specific designs. These advancements will continue to push the boundaries of gear chain capabilities and contribute to the evolution of various industries.

gear chain

What lubrication is recommended for a gear chain?

Proper lubrication is essential for the smooth and efficient operation of a gear chain. The lubricant used for a gear chain should have certain properties to ensure optimal performance and longevity. The following factors should be considered when selecting a lubricant for a gear chain:

1. Viscosity: The lubricant should have the appropriate viscosity to provide sufficient film thickness between the gear teeth and minimize friction and wear. The viscosity should be selected based on the operating conditions, such as speed, temperature, and load.

2. Extreme pressure (EP) additives: Gear chains often operate under high loads and pressures. The lubricant should contain EP additives that provide enhanced protection against metal-to-metal contact and prevent gear tooth damage.

3. Anti-wear properties: The lubricant should have excellent anti-wear properties to minimize wear on gear teeth and extend the chain’s service life. It should form a protective film on the surfaces to reduce friction and prevent metal-to-metal contact.

4. Corrosion protection: Gear chains may be exposed to moisture or corrosive environments. The lubricant should offer good corrosion protection to prevent rust and corrosion on the gear surfaces and chain components.

5. Compatibility: The lubricant should be compatible with the materials used in the gear chain, such as metals, plastics, or elastomers. It should not cause any adverse chemical reactions or damage to the chain components.

It is recommended to consult the gear chain manufacturer or a lubrication specialist to determine the specific lubricant requirements for your gear chain system. They can provide guidance on selecting the right lubricant based on the operating conditions, application requirements, and the type of gear chain used.

gear chain

How does a gear chain transmit power and motion?

A gear chain is a mechanical device that transmits power and motion from one rotating shaft to another. It consists of two or more gears connected by a chain, which engages with the teeth of the gears. When one gear is rotated, it transfers the rotational motion and torque to the other gears in the chain, resulting in the transmission of power and motion.

The teeth on the gears and the links of the chain are designed to mesh together, creating a positive engagement. As the driving gear rotates, its teeth push against the chain, causing it to move and rotate the driven gear. This transfer of motion is continuous as long as the driving gear continues to rotate.

The gear chain’s ability to transmit power and motion effectively is based on the principle of gear ratios. The ratio of the number of teeth on the driving gear to the number of teeth on the driven gear determines the speed and torque relationship between them. By selecting gears with different tooth counts, it is possible to achieve specific speed reductions or increases, as well as torque amplification or reduction.

In addition to transmitting power, gear chains can also provide speed control and direction reversal by incorporating different gear sizes or adding additional gears in the chain. This allows for versatile motion control in various applications.

Overall, gear chains are reliable and efficient mechanisms for transmitting power and motion in a wide range of mechanical systems, including automotive transmissions, industrial machinery, and power transmission equipment.

China high quality Industrial Transmission Gear Reducer Conveyor Parts China Standard C208ah/C208ahl Double Pitch Conveyor Chains  China high quality Industrial Transmission Gear Reducer Conveyor Parts China Standard C208ah/C208ahl Double Pitch Conveyor Chains
editor by CX 2023-11-27

gear chain

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