An internal combustion engine uses a timing belt to coordinate the motion of the crankshaft and camshaft. It is made with a precise hard tooth that interlocks with the two camshafts, the crankshaft’s cogwheel, and both. Read More…
Timing BeltingTiming belts are used for power transmission or to interchange linear motion and rotary motion where maintaining a specific drive ratio or high loads are important. They are most widely used in the regulation of internal combustion engine operation. Linear position systems are a common non-automotive application of timing belts.
At Forbo Siegling, our conveyor belts can be found in a variety of industries and applications, such as conveyor and processing belts in the food industry, treadmills in fitness studios, and flat belts in letter sorting systems. We are a leading manufacturer in our industry, and leading companies all over the world partner with us in developing groundbreaking solutions.
Megadyne started manufacturing transmission belts in 1957. Continual new product research and development continues to make Megadyne a world leader. Our product line includes polyurethane and rubber belts which are used in virtually all industrial drive applications for power transmission, synchronization/timing, conveying and linear positioning. Call us today!
Sparks Belting designs, manufactures and distributes customized conveyor belting, motorized pulleys and powered rollers. We have a belting assortment of over 200+ styles that include: polyurethane, modular, endless, v-guide, lacing, cleat and so many more. Sparks can provide you with innovative solutions for your conveyor belting and pulley requirements. Contact us today.
Timing belts are frequently seen in front of the engine and are frequently covered to keep out dust and other debris. But since 2008, a few engines have been using "wet timing belts," in which the belt is treated with engine oil to lessen friction. In addition, the timing belt may drive additional parts in some engine types, like the water pump and oil pump.
Timing belts are normally constructed of rubber. The belt's structure is strengthened by corded fibers that serve as tension members, and a fabric covering strengthens the toothed surface.
Higher temperatures and contact with motor oil cause rubber to deteriorate. As a result, a timing belt's lifespan is reduced in hot or leaky engines. Water and antifreeze can also shorten the reinforcing cords' life; thus, a belt should not come into contact with water that has a quick drainage system.
With their trapezoid-shaped teeth, older belts have high tooth wear rates. Curved teeth are now possible, allowing for quieter, longer-lasting products. Timing belts that don't meet manufacturer specifications may stretch at high rpm, delaying the cam and, consequently, the ignition. Stronger aftermarket belts won't stretch and maintain timing. A broader belt strengthens when creating the timing belt, while a narrower belt lightens it and lowers friction.
Timing belts fail due to delamination and unraveling of the fiber cores or stripped teeth (leaving a smooth belt stretch where the driving gear may slip). Due to the nature of the high-tensile fibers, belt breakage is rare. However, often ignored, dirt and debris combined with oil and grease can steadily deteriorate the belt's materials, speeding up the wear cycle and leading to early belt failure.
Functions of Timing Belts
The following are the purposes of timing belts in automobile engines:
Due to the timing belt's dependence on the piston and valve control, the combustion process is made possible.
To control the operation of the valves, it joins the crankshaft and camshaft.
Thanks to the timing belt, the engine's valves are precisely timed to open and close.
The timing belt controls the valve using the same mechanical energy from combustion.
A timing belt or chain also serves the purpose of avoiding a crucial degree of piston-to-valve contact.
Timing Belt Working Principle
Timing belts operate in an accurate and timely manner. The combustion process in engines is feasible even if the crankshaft needs to be rotated. Once the camshafts are synchronized, the valve can open and close to allow fuel and air to reach the combustion chamber. This rotation also regulates the exhaust valve, allowing the exhaust to exit. This process is carried out in unison. Crankshafts are made to run at half the speed of the camshaft because they coordinate their movements. For instance, a camshaft turn is produced by two crankshaft spins. Timing belt tension is designed because the timing belt needs tension to function properly. Automatic timing belt tensioners are used in modern automobiles and don't need to be adjusted. However, the belt would occasionally get loose in older cars, necessitating correction. Timing is so crucial that if one movement is off, it can damage the engine's efficiency and cause misfires and a loss of power.
Timing Belt Tooth Profiles
Timing belt teeth can be configured in various ways, depending on the required use and climate. We discuss some of these timing belt profiles below.
Teeth with a trapezoidal shape are very good at transmitting forces. However, teeth with this harsher, more blunt design tend to wear out quickly at higher levels of torque or speed. Nevertheless, despite their flaws, trapezoidal teeth continue to be widely used and are frequently the first option for linear positioning and precision conveying belts.
Curvilinear teeth lessen the chance of tension loss and the high concentration of force that trapezoidal teeth encounter by having a smoother and more rounded tooth form. However, although it may seem like a significant advance, curvilinear belts have certain disadvantages of their own.
Teeth with this profile will likely experience more play between the belt's teeth and the pulleys' grooves. Backlash is a problem that frequently leads to less precise belt alignment and diminished performance.
Modified Curvilinear Belts
The advantages of both trapezoidal and curvilinear tooth profiles are combined in modified curvilinear belts. These belts can efficiently transmit higher speed and torque forces without sacrificing durability because they have less tooth depth and steeper sides. So, customized curvilinear belts are frequently the first option for demanding industrial applications.
Timing Belt Applications
Here are a few applications for timing belts.
Advantages of Timing Belts
Timing belts have some benefits over flat or round belt drives, such as:
Rust- and abrasion-resistant
Timing and motion with precision
98% mechanical efficiency
They provide a ratio of constant velocity
Resistant to pollutants and chemicals
Low upkeep and tidy operation
Cost-effective because drive enclosures, lubrication, disposal costs, and tensioning devices are not required.
Ideal for transmission at a low power level
The power transfer occurs over a shorter distance than with conventional drive belts.
Disadvantages of Timing Belts
Choosing the Proper Timing Belts Supplier
To make sure you have the most constructive outcome when purchasing Timing Belts from a Timing Belts Supplier, it is important to compare at least 4 Companies using our list of Timing Belts manufacturers. Each Timing Belts Supplier has a business profile page that highlights their areas of experience and capabilities and a contact form to directly communicate with the manufacturer for more information or request a quote. Review each Timing Belts company website using our patented website previewer to get an idea of what each business specializes in, and then use our simple RFQ form to contact multiple Timing Belts companies with the same quote.
Timing Belts Informational Video
Conveyor Belts Power Pages
A conveyor belt is a material handling system designed to move supplies, materials, and components using an efficient and effortless process that saves on time, energy, and cost. The design of conveyor belts includes two motorized pulleys with the conveyor material looped over them...
Flat belts are power transmission belts that are flat and made of rubber, synthetic composites, or leather. They are used to transfer rotational power in industrial equipment and conveyor systems. Flat belts have a low profile...
A timing belt is made of rubber with hard teeth capable of interlocking with camshafts and crankshafts cogwheels. It is an integral component of an internal combustion engine responsible for...
A v-belt is a flexible machine element used to transmit power between a set of grooved pulleys or sheaves. They are characterized as belts having a trapezium cross-section...
A belt conveyor is a system designed to transport or move physical items like materials, goods, even people from one point to another. Unlike other conveying means that employ chains, spirals, hydraulics, etc., belt conveyors...
A conveyor system is a method for moving packages, products, supplies, parts, and equipment for production, shipping, or relocation. The different types of conveying systems include pneumatic, screw, belt, and roller...
A palletizer is an automated material handling machine used to stack and orient several individual products into a single load for a more convenient and economical method of handling, storage, and shipment. Palletizers are usually part of a bigger packaging process...
A bucket elevator or grain leg is used to move items in bulk. The usage of bucket elevators is widespread, notably in commercial agriculture and mining, and several specialized businesses manufacture bucket elevators and...
Roller conveyors are a type of conveyor belt that allows objects to skate on its surface by using rollers, which are equally spaced revolving cylinders. They transport stuff from one location to another...
Automated Guided Vehicles
Automated guided vehicles (AGV) or mobile robots are types of guided robotic systems that are not bounded by a fixed range of motion. Rather, it is self-contained and can move along a line, surface, or space...
A robotic palletizer is a type of palletizer that employs a robotic arm to pick, orient, and place individual products and arrange them into a single stack of load. They are the next generation of palletizers, and they will supersede conventional palletizers...
Types of AGVs (Automatic Guided Vehicles)
In 1954, when Arthur "Mac" Barrett, of Barrett Electronics Corporation, unveiled the first AGV, he named it Guide-o-Matic and described it as a driverless vehicle. Guide-O-Matic was a towing machine that followed a signal given from a wire in the ceiling...