Monthly Archives: March 2019

News

What Is a Timing Belt and When Should It Be Replaced?

Leave a comment

In more recently manufactured vehicles, the timing belt is a rubber belt that synchronizes the actions of the camshaft and crankshaft to keep your valves safely moving and your engine running. In older vehicles, the timing belt may actually be a chain. Regardless, the purpose is the same, and it is important to the functioning of your vehicle.

The Function of a Timing Belt

The camshaft operates the valves in your engine to let in and out air and gas. The crankshaft moves the pistons up and down. These two systems have to operate in exact synchronization or damage could occur to the valves, pistons, engine or other nearby parts. It is the job of the timing belt to ensure this synchronization occurs by keeping each system turning at the correct rate.

Replacing a Timing Belt

Newer cars can usually go 100,000 miles before the timing belt needs replacement. Older vehicles may need it replaced at 60,000. It is important to note that if the water pump goes bad, the timing belt will usually need to also be replaced. This is because most often the belt has to be removed to replace the water pump.

Signs a Timing Belt Needs Replacement

If a timing belt is worn out it may begin to slip and severe misfires will occur. Unfortunately, there is no clear-cut sign that a timing belt is going bad. Usually, when timing belts fail, it is not a gradual decline, instead, it is a sudden occurrence. Once a failure occurs the engine will immediately stop or lose significant power. If your vehicle has a chain instead, though, it may make a lot of noise if it is loose, and if it breaks you will often hear the crack.

This article comes from sunautoservice edit released

News

Timing Belt Profiles & Pitches

Leave a comment

Timing belt pitch refers to the center-to-center distance between the center of one tooth on a pulley to the center of the adjacent tooth. The timing belt tooth profile describes the shape of the tooth that is designed specifically for the type of application on which the timing belt pulley will be used. The application dictates the precision of registration needed, torque carrying capabilities, anti-ratcheting characteristics, and also quietness of the drive system.

This timing belt tooth geometry is often a patented feature of a specific timing belt manufacturer. These timing belt tooth profiles are frequently marketed as being exclusive to one timing belt manufacturer. However, competition and market forces dictate that customers don’t like to be forced into having only one choice.

We have identified the most common timing belt tooth profiles available today. We have also made available a cross reference guide that shows the interchangeability among the various timing belt manufacturers for the various timing belt profiles and pitches.

This article comes from pfeiferindustries edit released

News

POLY V BELTS

Leave a comment

We provide very high quality of poly v belts drives which known widely for its use in diverse industries. These are offered in different sizes and dimensions as required for industrial applications.

We are engaged in offering our clients with Belt Poly V, these belts are widely demanded by the clients for their quality and are appreciated by the clients. Poly v belts offer several advantages as compared to v/wedge/flat belts in terms of smaller pulley diameters, higher belt speeds, narrower face widths thus leading to efficient transmission of power. The most visible fact being that automobiles (the largest segment to use belts) has switched onto poly v for transmission. The very fact that they have more than 50% market share in the european automobile, white goods and industrial segments prove their quality and acceptability to large oem’s like ford/gm/whirlpool/electrolux. The exhaustive range of hutchinson covering H, J, K, L & M sections, from lengths of 200 mm to 15, 500mm (in most sections) enable them to offer various sizes of standard lengths as required for industrial applications. Hutchinson manufactures these belts in a different way (fully vulcanized ribs of a sleeve) as against grinding by most of the other manufacturers, leading to better transmission efficiency. The very construction of the poly v belts makes it suitable to replace all existing belt drives.

Some of the major advantages are:

•No matching of belts required – monoblock structure that eliminates flapping- as all ribs have the same length, thus providing longer life, reduced stretch and importantly higher transmission efficiency.

•Smaller pulley diameters possible and with reduced face widths (due to higher power transmission) leading to extended bearing life.

•Higher belt speeds, due to its construction. High speed ratios, possible (upto 1:60)

•The superior polymer and manufacturing technology of hutchinson provides reduced vibration and lesser noise (moulded ribs as compared to ground ribs of competitors).

This article comes from indiamart edit released

News

Industrial V Belts

Leave a comment

V Belts are friction based power or torque transmitters. The power is transmitted from one pulley to the other by means of the friction between the belt and pulley. The rubber used as the base material plays a very vital role in this. This is quite similar to the friction between the Tyre and road in the automobiles that enables the automobiles to move on the road.

The V Belt is called so because of its cross section. The cross section of a V Belt is similar to that of the letter ‘V’. Let us know look into the constructional aspects of the V-Belt. The V- Belt consists of the following

1. Steel Wires: The wires are of endless type having no joints in them. They provide the necessary reinforcement and strength to the V-Belt for transmission of the torque.

2. Base Rubber Compound: The wires are surrounded by a special rubber compound providing shape to the V-Belt. The compound also acts as a compression medium to absorb the shocks during power transmission.

3.Protective Cover: The protective cover is basically a layer of plastic which provides endurance for the rubber against the high temperature that is generated during the movement of the v-belt.

The V Belts are basically classified into 5 types or sections i.e. ‘A’, ‘B’, ‘C’, ‘D’ and ‘E’. The categorization of this is based on the cross sectional size of the belt and the amount of power to be transmitted by the belt. The dimensions of various sections of the V-belt are shown below. The included angle of the V Belts is 40 Degrees.

News

The basics of cogged v belt

Leave a comment

cogged v belt, as the name implies do not have textile wrapping on the outer surface and are produced by slitting individual cogged v belts form rubber sleeves.

The manufacturing methods also make it simpler to produce cogged v belts with cogs underside thereby reducing the bending resistance of the cogged v belts and allowing them to operate on pulleys with approximately 20% smaller diameters. The decreased bending resistance reduces mechanical losses during bending and leads to improved efficiency and reduced working temperature. Heat dissipation is further improved by the larger area between the cogged v belt and the surrounding atmosphere and also by the air turbulence around the cogs during operation. Multi stage drives can be eliminated. These cogged v belts require a higher tension than the wrap cogged v belts so as to exhibit higher power transmission capability.

Applications

It is recommended to use these cogged v belts in borderline cases if difficulties are anticipated in using wrap construction cogged v belts.

This article comes from finerpt edit released

News

Merits of using the belts in the agricultural industry

Leave a comment

With the help of these conveyor belts, the workforce reduces and this leads to more profits and less expense. Also, the storage, drying, and processing of the products have become very efficient and easy. These processes are also easy to synchronize due to these belts. They have excellent turn-around time and handle the systematic materials very well.

These belts are specially designed in order to cater the needs of the agricultural world. They are not only cost effective, but also efficient. They have the ability to adjust to any type of temperature. Different conveyor belts are used to perform agriculture applications.

This article comes from mayconveyor edit released

News

Uses of agri belt in the agricultural industry

Leave a comment

In today’s world where transportation is perhaps one of the most elements for the business to succeed, people are always in search of better, faster and cost effective technique of transporting, tracking and processing their goods.

In the recent years, agri belt system has emerged as one of the best ways of transporting product. This system consists of two or more number of drums that are also referred as pulleys with a agri belt i.e. the carrying medium and it rotates around the drums. The belt is propelled by one or two of the pulleys. The pulley that powers the belt is called the drive pulley and the other is called idler pulley. The agri belt is categorized into two classes, one that transports general material and the other that is responsible for taking agricultural material such as sand, ore, coal, salt, grain and much more from one place to another.

Uses of belt in the agricultural community

The uses of a agri belt in the agricultural community are numerous. It is used in the feeding process that processes or freezes vegetables, fruits, and other agricultural products for packing to be sent to the retailers or other process plants. Besides this, these belts are effectively being used for loading bulk quantities into trucks in order to get them transported to their final destination. Bean market is another place, where agri belt scales are used in a large number. Additionally, these belts are to load out the soy beans into the trucks that carry them to the end process.

These belts are designed to suit the requirements of the agricultural industry application. Sugar Cane, Cauliflower, peas, flour, rice, and grains are some of the agricultural applications that use agri belt scales.

This article comes from mayconveyor edit released

News

Guide to V Belt Selection and Replacement

Leave a comment

V belts look like relatively benign and simple pieces of equipment. They’re basically a glorified rubber band, right? Need a replacement? Just measure the top width and circumference, find another belt with the same dimensions, and slap it on the drive. There’s only one problem: that approach is about as wrong as you can get.

Like their synchronous belt cousins, V belts have undergone tremendous technological development since their invention by John Gates in 1917. New synthetic rubber compounds, cover materials, construction methods, tensile cord advancements, and cross-section profiles have led to an often confusing array of V belts that are highly application specific and deliver vastly different levels of performance.

How V Belts Work

Unlike flat belts, which rely solely on friction and can track and slip off pulleys, V belts have sidewalls that fit into corresponding sheave grooves, providing additional surface area and greater stability. As belts operate, belt tension applies a wedging force perpendicular to their tops, pushing their sidewalls against the sides of the sheave grooves, which multiplies frictional forces that allow the drive to transmit higher loads. (Figure 2) How a V belt fits into the groove of the sheave while operating under tension impacts its performance.

V belts are made from rubber or synthetic rubber stocks, so they have the flexibility to bend around the sheaves in drive systems. Fabric materials of various kinds may cover the stock material to provide a layer of protection and reinforcement.

This article comes from powertransmission edit released

News

Lightweight Rubber Belts

Leave a comment

In our modern production facility, we produce more styles and variations of lightweight rubber belt than any other belting manufacturer.

With over 2,100 single-ply and multi-ply belting constructions, we provide durable belting solutions for almost every industry, and have done so for over 60 years.

Lightweight conveyor belts in rubber elastomer, EPDM and silicone. Produced and delivered efficiently and effectively.

We utilizes a wide variety of raw materials in manufacturing our lightweight rubber belt products.

Specifications range in many thicknesses. We produce both unsupported and fabric inserted materials.

This article comes from ammeraalbeltech edit released

News

When to Replace Rubber Conveyor Belt

Leave a comment

Belts continue to be one of the most replaced wear items on vehicles today. Rubber conveyor belt last a lot longer than older V-belts ever did, but they still wear out over time. The typical replacement interval for rubber conveyor belt and flat belts today is around 90,000 miles – which for many vehicles means only once every seven to nine years! That’s a lot of miles between belt changes.

Today’s hoses are even longer-lived thanks to much improved synthetic rubbers such as EPDM. Even so, older high-mileage hoses should be closely examined and replaced when the cooling system is serviced. Recommend new hoses (and clamps) if a customer is changing a water pump, radiator or heater core.

Rubber conveyor belt can be tricky to replace because of the way in which they are routed and because of limited access in a tight engine compartment. Although most late-model belt drive systems use a single belt, some applications also may have a separate belt for an accessory such as the A/C compressor or power steering pump. What’s more, some applications may use a secondary “stretch fit” belt that has no traditional adjustment. Installing one of these requires a special tool to slip the belt over the pulleys without damaging the belt.

Many belt drive systems also incorporate decoupling pulleys to dampen noise and vibration. Even so, belt noise is still a common complaint and reason for replacement. When the V-ribs on the underside of a serpentine belt become worn, the belt may slip and make noise. It’s hard to see this type of wear, so a belt wear gauge tool should be used to measure the depth of the grooves in the belt. If the belt is worn, it’s time for a new belt.

Belt noise also can be caused by misalignment between pulleys. These include a misaligned power steering pump pulley, idler pulley(s), automatic belt tensioner pulley, water pump pulley (which may be due to wear in the pump shaft bearings), and even a worn or loose harmonic balancer. This type of misalignment can be difficult to see, so pulley alignment should be carefully checked with a straight edge or a laser alignment tool.

By the time a worn belt needs to be replaced, chances are other components in the belt drive system also may need attention. No. 1 among these is the automatic belt tensioner. Over time, the spring that maintains belt tension can weaken. Rust, corrosion, and wear also can cause binding that prevents the tensioner from rotating normally to maintain proper belt tension. Belt flutter or belt noise when revving the engine are indications of a weak tensioner.

Bearing wear in idler pulleys also can create noise and misalignment. The bearings are sealed and cannot be relubricated, so if an idler pulley is noisy or wobbling it needs to be replaced.

Changing a serpentine belt usually requires a long handle breaker bar or special tool to rotate the belt tensioner so the belt can be slipped off the pulleys. If there is no belt routing decal under the hood (which many cars lack), your customer should snap a photo of the belt before it is removed with a phone camera, or make a simple drawing of how it is routed. It’s easy to misroute a serpentine belt if you can’t remember how it was positioned before it was removed. A sure sign of misrouting is if the belt seems to be too long or too short for the application, or if it won’t slip over the last pulley, or it is loose after it has been installed.

Installation problems can be avoided by comparing the length of the old and new belts to make sure they are exactly the same length and width.