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What Does The Timing Belt Do?

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The timing belt is the belt that controls the camshafts in your engine, opening and closing valves at just the right time for smooth operation. The timing belt has teeth that turn the camshaft in time with the crankshaft.

Some cars and trucks use timing chains or gears, which are more durable. But timing belts, made of rubber compound, are quieter and more efficient. They also don’t need lube to work.

On some engines, if the timing belt fails, valves will be held open when they should not be and will be struck by the pistons, causing major damage to your engine. So you want to prevent it at all costs.

While you’re getting the timing belt changed, it’s a good idea to get a new water pump, too. Water pumps have similar life spans, and they’re easy to get to while the timing belt is off. If you wait, you’ll have to pay more for installation later.

When is it time to change a timing belt? Most timing belts are rated for between 60,000 miles and 90,000 miles. The belt can’t be checked easily so you replace your timing belt on a schedule. Check your manual. If it’s time, bring your car or truck to any of our stores.

This article comes from bigotires edit released

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Fan Belt? Similarities and Differences

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Look up “fan belt” in any modern automotive dictionary, and you’ll typically find a definition that reads, “An endless belt used to transmit power from a crankshaft-driven pulley to a pulley driving the fan, alternator, or other engine accessory. It is usually V-shaped in cross section with the point of the V fitting into a groove in the pulley”.

Even though cooling fans on most modern vehicles are driven by electric motors instead of actual belts, the term fan belt is still incorrectly used as a blanket expression to describe any single accessory belt that may be used to drive a water pump, alternator, power steering pump, or other items. Why?

In order to pull cooling air through a vehicle’s radiator, a cooling fan needs to be located at the front of the vehicle just behind the radiator. Traditional rear-wheel-drive vehicles with longitudinally-mounted engines had crankshaft pulleys right there at the front of the car, and they were convenient sources of power for cooling fans.

Since the fan belt tended to be the biggest and most noticeable one on the vehicle, the expression became universal for all other belts that looked similar – no matter what function they performed. Many original engine layouts also used that fan belt to spin water pump and alternator pulleys, and you may hear some people call this belt a “water pump belt” or “alternator belt” as well as a fan belt.

However, as vehicles with front-wheel-drive and sideways-mounted engines grew in popularity, the front of the engine was no longer at the front of the vehicle where the cooling fan was.

Engineers perfected electric fan motors, temperature sensors, and related computers to get the job done, and belt-driven fans were no longer necessary. Because cooling fans don’t always need to be running at steady cruising speeds, electric motors which can shut off proved more energy efficient than direct drive belts which are always connected. Since electric cooling fans are used even in modern vehicles with longitudinally-mounted engines, the term fan belt has become virtually obsolete. More fitting terms to use when searching for a replacement single belt of this kind would be accessory drive belt or V-belt.

Because drive belts are subject to constant rotation, load, and heat, they are constructed in a similar fashion as tires. An outer layer of rubber surrounds internal steel and cord reinforcements to minimize stretching and maximize strength when grip is needed under load.

This article comes from carid edit released

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What is a V belt?

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The V belt acts as a transmission belt. Connecting the V belt pulleys, it transmits the force from the engine to the ancillary components including the alternator, the hydraulic pump for the power steering.

In a combustion engine, the combustion of the air/fuel mixture drives pistons. Via connecting rods, the movement of these pistons in a straight line is converted into the rotation of the crankshaft. The V belt uses the force from the rotation (torque) of the crankshaft and drives additional units via V belt pulleys. As such it is responsible for the correct operation of the engine and high levels of ride comfort. A V belt can drive one or two additional units.

Ancillary components that are in perfect working order give drivers a strong feeling of comfort and security.

For example: The V belt is responsible for ensuring that the air conditioning compressor it drives regulates the temperature inside the vehicleto a pleasant level in summer and stops the windows misting over in winter. It also ensures that the power steering assists the driver when steering. The alternator drive ensures not only that the necessary electrical energy (e.g. for sparking ignition or for the injection system) is supplied to the engine but also that electrical loads such as the heated rear window, lighting, heated seats, the navigation system and the ABS and ESP are supplied with power. The water pump powered by the drive ensures that the coolant circulates in the engine, thereby preventing the inconvenience that would be caused by breaking down due to the engine overheating.

Nobody would want to be left stranded in their vehicle on account of a torn V belt because power cannot be supplied to the engine or the engine has overheated due to a failed water pump. V belts are non-positive drive components. Their functional principle is based on friction. Therefore, they are exposed to a process of wear. For this reason, the service and replacement intervals set out by the vehicle manufacturers should be observed and V belts should be replaced if necessary, all the more so because the associated costs are usually reasonable. The full functionality of the engine and a comfortable ride can only be assured if the engine is in perfect working order.

This article comes from my-cardictionary edit released

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V-belt maintenance

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1. It is very important that the tension inspection of the generation should be one of the routine maintenance items. Too low a tension causes the V belt to slip and cause an early failure caused by the overheating of the belt, and the overheated transmission belt will transfer its own heat to the drive. The pulley and drive shaft of the system overheat the bearing lubricating oil. The belt should be checked for excessive wear. An excessively worn belt will sink deep in the groove and may be too loose to slip. The loose belt slips through It will generate higher heat and damage the belt drive system more than any other single reason.
2. If the belt screams during operation, you should check the tension of the belt or see if there are foreign objects such as grease, dirt or paint in the wheel groove. These foreign objects will cause the belt to slip or cause dirt and sand to gather in together.
3. Check the system during operation. All the belts should run under the same tension. No matter if the matching belt or the combination belt is used, although the jitter of the combination belt is the same, if one or several belts are obviously Loose or tight, you need to check the wear of the pulley, unsuitable tension, improper matching belt or damaged belt.
4. If only one of the belts is replaced by the belt used in the group, it will also cause premature failure of the belt.
5. It is also important to check the pulleys. Use a solvent to wipe off all oil or grease, use a metal brush to remove rust, and use a file to remove burrs. The burrs will accelerate the wear of the belt.
6. A worn pulley can usually be seen with the naked eye, but it is best to use the groove gauge of the pulley, insert the groove gauge into the wheel groove, check whether the wear is serious, and replace the pulley if necessary. The pulley will cause excessive wear of the belt and inconsistency of the belt tension, and it will also cause instability of the belt in the groove of the belt, thereby causing the belt to slip or reverse.

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ZHEJIANG POWERBELT CO. LTD. was established in 1994 by Mr. RenPing Bao, which locates in No. 27 of ShiFeng East Road, Tiantai City, Zhejiang Province, China. Now it’s one of the leading manufacturers specializing in producing all kinds of high quality Rubber Betts, induding Wrapped V Belt, Cogged V Belt, Timing Belt, Poly V Belt and Conveyor Belt.

After 20 years rapid development the company now has two factories with a total area of 100, 000m2, total assets more than $40,000,000, and staff exceeds 500. Our Belts have been selling to more than 50 Countries and enjoying a high reputation.

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Belt type

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1. There are basically belt types on heavy-duty vehicles: V-belts and V-ribbed belts. In most vehicles of the previous design, traditional V-belts are used. The typical V-belt is a toothed triangle belt, which helps to cool during operation. , Quiet and reduce the bending stress of the belt.
2. The rubber of the V-belt can reinforce the fiber to improve the lateral stability and lengthwise to increase its flexibility.
The unique rubber material is used to greatly extend the belt and resist the failure of the belt caused by overheating of the engine. The short fibers in the rubber improve the stability of the belt and reduce the risk of belt tilt.
3. The deep tooth shape of the V-belt increases the flexibility of the belt and is suitable for use on smaller pulleys. This tooth shape communicates with the contact area of the pulley, which helps to dissipate heat.
4. The drive system of heavy vehicles is also often designed to use the joint group V to prevent shock vibration and additional mutations. High-strength canvas is used to connect two or more belts together, it is easy to bend on the pulley This high-strength canvas enhances the stability of the belt attachment pulley or running pulley, which solves some application problems and measures high load, replacing the high-alternative starting system.

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ZHEJIANG POWERBELT CO. LTD. was established in 1994 by Mr. RenPing Bao, which locates in No. 27 of ShiFeng East Road, Tiantai City, Zhejiang Province, China. Now it’s one of the leading manufacturers specializing in producing all kinds of high quality Rubber Betts, induding Wrapped V Belt, Cogged V Belt, Timing Belt, Poly V Belt and Conveyor Belt.

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Cogged Banded V-Belts

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Cogged banded V-belts are essentially two or more Cogged classic v belts that are connected together. They are used in instances when the pulley design of the machine requires two or more cogged V-belts joined together to connect multiple pulley drives in order to avoid load fluctuations or belt turnover. Cogged banded V-belts are banded across the back of the belt to keep them together. By connecting them together, you get a stronger application and consistent tensioning across all of the belts. It also makes the belt more rigid, which then increases friction, thus making it easier to apply to a machine.

The cogs run horizontally on the underside of the belt for better traction. Cogged V-belts work well with smaller-diameter sheaves and can withstand reverse bending, high linear speed and high-speed ratios. However, since the V-belt is cogged, there is a risk of the belt missing the cog  and becoming misaligned. Other than the cogs, cogged V-belts operate like classic V-belts.

Classic V-belts are the most tried and true belts in the industry. V-belts help to solve the problem of alignment and slippage for power transmissions. They are now also the most commonly-used belts for power transmissions as well. The primary function of a classic V-belt is to disseminate power from a primary power source, such as a motor, to the secondary power unit. V-belts excel at providing the best combination of bearings, speed transfer, traction and belt-life longevity. The trapezoidal — or “V” — shape of the belt helps it to track in the similarly-shaped grooves of the machine so the belt does not slip off while in use. While the V-belt tracks in the grooves, the belt creates a deeper wedge to better handle the increasing loads, which then increases torque tension and power distribution. As friction increases, so does temperature.

V-belts are typically made out of rubber or a polymer, but may also have fibers from other materials added for reinforcement. Classic V-belts have a high resistance to temperature (-31 degrees F to 158 degrees F), but more of a limited resistance to oil.

V-belts were made originally to replace leather belts in industries such as heating, ventilation and air conditioning (HVAC), facility maintenance, material handling, oilfield supply, agriculture and rock crushers. Agriculture and industrial settings are the most common places to find classic V-belts being used. V-belts may also be referred to as light-duty (or “fractional horse power”) because they can only handle less than one horse power. These V-belts are designed with a 40-degree angle to “wedge” the belt into the groove of the pulley. There are also standard-duty V-belts, which can handle 1 horse power up to 500 horse power. The greater the load, the greater the wedging action. The manufacturing process combines a rubber compound with a polyester cord to increase strength and stability. Many classic V-belts are also available as Kevlar V-belts.

Classic V-belts generally are put into two different categories, based on construction: Envelope and raw edge.
Envelope: Also known as “wrapped” or “jacketed”; these V-belts have a fabric cover and a higher resistance to oil and high temperatures. When in a machine, they can be used as friction clutches upon start-up.
Raw edge: These do not have any type of cover, thus not as resistant to oil and high temperatures as wrapped V-belts. However, they are more efficient, generate less heat, increase power ratings, allow smaller pulley diameters, and ultimately, have a longer life.

In addition to the above categories based on construction, there are five main categories (A, B, C, D, E) of classic V-belts and they are categorized by their top width and internal length: A (1/2″ top width), B (21/32″ top width), C (7/8″ top width), D (1-1/4″ top width) and E (1-1/2″ top width).

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ZHEJIANG POWERBELT CO. LTD. was established in 1994 by Mr. RenPing Bao, which locates in No. 27 of ShiFeng East Road, Tiantai City, Zhejiang Province, China. Now it’s one of the leading manufacturers specializing in producing all kinds of high quality Rubber Betts, induding Wrapped V Belt, Cogged V Belt, Timing Belt, Poly V Belt and Conveyor Belt.

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V-belt (V-shaped) belt wear problems and solutions

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Symptoms Possible causes Corrective measures
· The top surface of the belt is worn 1. Wear with protective cover. 1. Replace or repair the protective cover.
2. The tension wheel is damaged. 2. Replace the tension wheel.
· The top corner of the belt is worn 1. The belt does not match the pulley (the belt is too small) 1. Use the correct belt-to-pulley combination.
· Side belt wear 1. The belt slides. 1. Adjust until it does not slide.
2. The two pulleys are not on the same plane. 2. Adjust to the same plane.
3. The pulley is worn. 3. Replace the pulley
4. The size of the belt is wrong. 4. Replace the belt with the correct size.
· Wear at the bottom of the belt 1. The belt does not match the pulley. 1. Use the correct combination of belt and pulley.
2. The pulley is worn. 2. Replace the pulley.
· Wear on the bottom of the belt 1. The bottom of the belt reaches the bottom of the pulley groove. 1. Use the correct belt and pulley to match.
2. The pulley is worn. 2. Replace the pulley.
3. There are debris on the pulley. 3. Clean the pulley.
· The lower part of the rubber is broken 1. The diameter of the pulley is too small. 1. Use a larger diameter pulley.
2. The belt slides. 2. Adjust to keep it from sliding.
3. The tension wheel is too small. 3. Use a larger diameter tensioner.
4. Improper storage. 4. Do not roll the belt too tight, fold or bend it to avoid heat and direct sunlight.
· Burn or harden the lower cover or side wall 1. The belt slides. 1. Adjust so that it does not slide.
2. The pulley is worn. 2. Replace the pulley.
3. The design safety factor of the transmission device is insufficient. 3. Refer to the GATES transmission manual.
4. The axis moves. 4. Check whether the center distance changes or the bearings are damaged.
· Belt surface hardening 1. The environment around the transmission is too hot. 1. Improve the ventilation conditions of the transmission.
· The belt surface peels, sticks or bulges

 

FROM:sina.com.cn, gzadvance’s blog

ZHEJIANG POWERBELT CO. LTD. was established in 1994 by Mr. RenPing Bao, which locates in No. 27 of ShiFeng East Road, Tiantai City, Zhejiang Province, China. Now it’s one of the leading manufacturers specializing in producing all kinds of high quality Rubber Betts, induding Wrapped V Belt, Cogged V Belt, Timing Belt, Poly V Belt and Conveyor Belt.

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What is a V-belt

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The V-belt drive can reduce the load impact, the belt drive runs smoothly, low noise, and low vibration. The structure of the belt drive is simple and easy to adjust. The pulley transmission is not as strict as the meshing transmission for the manufacture and installation of the pulley.

The groove of the pulley is actually designed according to the leather belt, and there are many types of industrial belts, such as common U-shaped, V-shaped, toothed, etc. The corresponding pulleys are U-shaped pulleys, V-shaped pulleys, and toothed belt pulleys. The Wrapped v belts pulley is generally used on large industrial motors, and the toothed belt pulley is generally a synchronous pulley.

Precautions:

1. When the surface of the belt has precursor phenomena such as cracks, abrasion, and peeling, or slipping sound (except for slipping sound when the belt is loose and loose), it means that the belt may break. Replace the belt in time.

2. When replacing the belt, first loosen the fixing screw of the engine, move the engine towards the cylinder block to loosen the belt, and then remove the belt. If the belt is still not easy to remove after slackening, use a screwdriver to insert it between the pulley and the belt, and pull the belt outward while turning the pulley, so that the belt can be removed.

3. Before removing the belt, remember the position where the belt is installed or bypassed to prevent incorrect installation. When installing the belt, simply operate in the reverse order of removal.

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Different Types of Conveyor Belts and Their Uses

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Manufacturers and distributors relied heavily on human labor before the advent of conveyor belts. The manual handling of products placed worker safety and product quality in jeopardy. The simple system of rotating pulleys and belts streamlines product handling in every product-driven industry today.

The technology used in conveyor belts is much more sophisticated than the simple belt systems of the past. We choose modern belts based on the use case. For example, a woven metal belt would not handle precious stones or delicate products well. Product-handling companies that understand different types of conveyor belts and their uses can choose the safest and most efficient belt systems for their needs.

These materials may feature different coatings, thicknesses, and arrangements to deliver a range of handling properties. Some offer food safety ratings while others perform well in high temperatures. Other common properties of general-use belts may include high or low friction levels and specific bulk-handling structuring.

Conveyor belts fall into many categories, depending on the manufacturer. The application always dictates the materials, construction, and style of the belt used. Some are gentle enough to transport diamonds while others can handle the impact of routine bulk-steel handling.

We offer customers custom metal fabricating services. We can help you choose the right conveyor system for your industrial, mining, or automotive application needs and craft a high-quality belt and pulley system that will perform well for years to come.

This article comes from swantonweld edit released