Product Description
Basic Info
|
ANSI NO: |
140 |
DIN/ISO NO: |
28A |
|
Pitch (mm): |
44.4500 |
Roller Diameter(mm): |
25.40 |
|
Inner Plate Width (mm): |
25.22 |
Average Tensile Strength: |
212.0KN |
|
Pin Diameter(mm): |
12.70 |
Weight / Meter (kgs/m): |
7.50 |
|
Plate Thickness (mm): |
5.60 |
Chain Size: |
5F, 10F, 5Meters |
|
Origin: |
HangZhou China |
HS Code: |
7315119000 |
ROLLER CHAIN
Roller chain or bush roller chain is the type of chain drive most commonly used for transmission of mechanical power on many kinds of domestic, industrial and agricultural machinery, including conveyors, wire- and tube-drawing machines, printing presses, cars, motorcycles, and bicycles. It consists of a series of short cylindrical rollers held together by side links. It is driven by a toothed wheel called a sprocket. It is a simple, reliable, and efficient means of power transmission..
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[8][9][10] for additional information.
ASME/ANSI B29.1-2011 Roller Chain Standard SizesSizePitchMaximum Roller DiameterMinimum Ultimate Tensile StrengthMeasuring Load25
| ASME/ANSI B29.1-2011 Roller Chain Standard Sizes | ||||
| Size | Pitch | Maximum Roller Diameter | Minimum Ultimate Tensile Strength | Measuring Load |
|---|---|---|---|---|
| 25 | 0.250 in (6.35 mm) | 0.130 in (3.30 mm) | 780 lb (350 kg) | 18 lb (8.2 kg) |
| 35 | 0.375 in (9.53 mm) | 0.200 in (5.08 mm) | 1,760 lb (800 kg) | 18 lb (8.2 kg) |
| 41 | 0.500 in (12.70 mm) | 0.306 in (7.77 mm) | 1,500 lb (680 kg) | 18 lb (8.2 kg) |
| 40 | 0.500 in (12.70 mm) | 0.312 in (7.92 mm) | 3,125 lb (1,417 kg) | 31 lb (14 kg) |
| 50 | 0.625 in (15.88 mm) | 0.400 in (10.16 mm) | 4,880 lb (2,210 kg) | 49 lb (22 kg) |
| 60 | 0.750 in (19.05 mm) | 0.469 in (11.91 mm) | 7,030 lb (3,190 kg) | 70 lb (32 kg) |
| 80 | 1.000 in (25.40 mm) | 0.625 in (15.88 mm) | 12,500 lb (5,700 kg) | 125 lb (57 kg) |
| 100 | 1.250 in (31.75 mm) | 0.750 in (19.05 mm) | 19,531 lb (8,859 kg) | 195 lb (88 kg) |
| 120 | 1.500 in (38.10 mm) | 0.875 in (22.23 mm) | 28,125 lb (12,757 kg) | 281 lb (127 kg) |
| 140 | 1.750 in (44.45 mm) | 1.000 in (25.40 mm) | 38,280 lb (17,360 kg) | 383 lb (174 kg) |
| 160 | 2.000 in (50.80 mm) | 1.125 in (28.58 mm) | 50,000 lb (23,000 kg) | 500 lb (230 kg) |
| 180 | 2.250 in (57.15 mm) | 1.460 in (37.08 mm) | 63,280 lb (28,700 kg) | 633 lb (287 kg) |
| 200 | 2.500 in (63.50 mm) | 1.562 in (39.67 mm) | 78,175 lb (35,460 kg) | 781 lb (354 kg) |
| 240 | 3.000 in (76.20 mm) | 1.875 in (47.63 mm) | 112,500 lb (51,000 kg) | 1,000 lb (450 kg |
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):
| Pitch (inches) | Pitch expressed in eighths |
ANSI standard chain number |
Width (inches) |
|---|---|---|---|
| 1⁄4 | 2⁄8 | 25 | 1⁄8 |
| 3⁄8 | 3⁄8 | 35 | 3⁄16 |
| 1⁄2 | 4⁄8 | 41 | 1⁄4 |
| 1⁄2 | 4⁄8 | 40 | 5⁄16 |
| 5⁄8 | 5⁄8 | 50 | 3⁄8 |
| 3⁄4 | 6⁄8 | 60 | 1⁄2 |
| 1 | 8⁄8 | 80 | 5⁄8 |
Notes:
1. The pitch is the distance between roller centers. The width is the distance between the link plates (i.e. slightly more than the roller width to allow for clearance).
2. The right-hand digit of the standard denotes 0 = normal chain, 1 = lightweight chain, 5 = rollerless bushing chain.
3. The left-hand digit denotes the number of eighths of an inch that make up the pitch.
4. An “H” following the standard number denotes heavyweight chain. A hyphenated number following the standard number denotes double-strand (2), triple-strand (3), and so on. Thus 60H-3 denotes number 60 heavyweight triple-strand chain.
A typical bicycle chain (for derailleur gears) uses narrow 1⁄2-inch-pitch chain. The width of the chain is variable, and does not affect the load capacity. The more sprockets at the rear wheel (historically 3-6, nowadays 7-12 sprockets), the narrower the chain. Chains are sold according to the number of speeds they are designed to work with, for example, “10 speed chain”. Hub gear or single speed bicycles use 1/2″ x 1/8″ chains, where 1/8″ refers to the maximum thickness of a sprocket that can be used with the chain.
Typically chains with parallel shaped links have an even number of links, with each narrow link followed by a broad one. Chains built up with a uniform type of link, narrow at 1 and broad at the other end, can be made with an odd number of links, which can be an advantage to adapt to a special chainwheel-distance; on the other side such a chain tends to be not so strong.
Roller chains made using ISO standard are sometimes called as isochains.
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1. Reliable Quality Assurance System
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The 219 sets of advanced automatic production equipment provide guarantees for high product quality. The 167 engineers and technicians with senior professional titles can design and develop products to meet the exact demands of customers, and OEM customizations are also available with us. Our sound global service network can provide customers with timely after-sales technical services.
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 |
| Surface Treatment: | Polishing |
| Structure: | Roller Chain |
| Material: | Alloy |
| Type: | Bush Chain |
| Samples: |
US$ 30/Meter
1 Meter(Min.Order) | |
|---|
| Customization: |
Available
| Customized Request |
|---|
Can a gear chain be used in food processing industries?
Yes, gear chains can be used in food processing industries under certain conditions and with proper considerations for hygiene and sanitation. Gear chains made from suitable materials and designed to meet specific industry standards can be used to transmit power and motion in various food processing applications.
Here are some important considerations when using gear chains in food processing:
1. Material Selection:
– Choose gear chains made from food-grade materials such as stainless steel or plastic that are resistant to corrosion and can withstand the demands of food processing environments.
2. Cleanability:
– Ensure that the gear chain design allows for easy cleaning and sanitation. Smooth surfaces, minimal crevices, and easy disassembly are important for effective cleaning and preventing the accumulation of food particles or contaminants.
3. Lubrication:
– Select food-grade lubricants that are compatible with the gear chain material and the specific food processing requirements. Regular lubrication and maintenance are necessary to ensure smooth operation and prevent contamination.
4. Hygiene and Sanitation:
– Follow proper hygiene and sanitation practices in the food processing facility, including regular cleaning and inspection of the gear chain. Implementing procedures such as HACCP (Hazard Analysis and Critical Control Points) can help ensure food safety.
5. Compliance with Regulations:
– Ensure that the gear chain and its components meet relevant food industry regulations and standards, such as those set by the FDA (Food and Drug Administration) or other local regulatory bodies.
It is important to consult with industry experts, equipment manufacturers, and adhere to specific food processing guidelines to ensure the safe and appropriate use of gear chains in food processing applications. Regular maintenance, inspection, and adherence to food safety protocols are essential for maintaining the integrity of the food products and the overall hygiene of the processing environment.
How do you calculate the gear ratio in a gear chain system?
The gear ratio in a gear chain system is determined by the number of teeth on the driving gear and the driven gear. The gear ratio is defined as the ratio of the number of teeth on the driven gear to the number of teeth on the driving gear. It represents the relative rotational speed and torque between the two gears. The formula to calculate the gear ratio is:
Gear Ratio = Number of Teeth on Driven Gear / Number of Teeth on Driving Gear
For example, if the driven gear has 40 teeth and the driving gear has 20 teeth, the gear ratio would be:
Gear Ratio = 40 / 20 = 2
This means that for every revolution of the driving gear, the driven gear will make two revolutions. The gear ratio determines the speed and torque conversion between the gears, allowing for power transmission and motion control in the gear chain system.
How does a gear chain differ from other types of chains?
A gear chain differs from other types of chains in the way it operates and its specific design features:
– Gear Engagement: Unlike standard roller chains or silent chains that rely on the interaction between pins and rollers or plates, a gear chain utilizes gear teeth on the chain links that directly engage with the teeth of the sprockets. This positive engagement provides a secure and efficient transfer of torque.
– Speed Control: Gear chains offer precise speed control due to the gear teeth engagement. By varying the size and number of teeth on the sprockets, the speed ratio between the driving and driven shafts can be accurately adjusted to meet specific application requirements.
– Load Capacity: Gear chains are designed to handle higher loads compared to other types of chains. The gear teeth engagement distributes the load evenly across the chain, resulting in improved load-carrying capacity and resistance to fatigue.
– Compact Design: Gear chains have a more compact design compared to other types of chains. The gear teeth are integrated into the chain links, eliminating the need for separate components like pins, rollers, or plates. This compact design allows for efficient power transmission in applications with limited space.
– Specific Applications: Gear chains are commonly used in mechanical systems that require precise speed control and high load-carrying capacity. They are often found in machinery, automotive systems, robotics, and other applications where accurate power transmission is critical.
– Lubrication: Gear chains typically require lubrication to minimize friction and wear between the gear teeth. Proper lubrication ensures smooth operation and extends the chain’s service life.
In summary, gear chains differ from other types of chains in terms of their gear engagement, precise speed control, higher load capacity, compact design, suitability for specific applications, and lubrication requirements.
editor by CX 2023-10-20