Belts, chains, rollers
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High-Quality OEM Belts, Chains, and Rollers
Car engines are complicated, and getting power from one part to another needs to be exact. Belts, chains, and rollers are the parts that make it happen. Each has a job and works together to keep the engine running well. If one fails, the entire engine may not function properly and cause disruptions when driving. Once damaged, you should use OEM replacement belts, chains, and rollers.
It’s important to use OEM products on your vehicle because they are designed to match your car’s specific model. They come from the same manufacturer that built your vehicle, so you can expect the part to be installed seamlessly and function as intended. While they may be more expensive than aftermarket products, the benefits OEMs offer are far greater and worth the money.
What Is the Purpose of Belts, Chains, and Rollers?
Belts
Belts transfer rotational power from the engine’s crankshaft to various accessory components. The most common type is the serpentine belt, a single, continuous belt that drives the alternator, power steering pump, air conditioning compressor, and water pump. By connecting these accessories to the crankshaft, the belt ensures they receive the necessary power to function. On the other hand, timing belts synchronize the engine’s valves and pistons to operate in harmony.
Chains
Timing chains synchronize the rotation of the crankshaft and camshaft(s) within the engine. Unlike timing belts, which are made of rubber, timing chains are constructed from metal links for greater durability and a longer lifespan. Their main purpose is to maintain the precise timing of the engine’s valves, ensuring they open and close at the correct moments in relation to the piston movement. Precise timing is needed for efficient combustion and optimal engine performance. Chains are also used in some older or specific vehicle designs to drive other components, but their primary application is within the engine’s timing system.
Rollers
Rollers minimize friction and wear within moving components, particularly in the valve train. For instance, roller rocker arms incorporate a roller tip that rolls across the valve stem rather than sliding. This rolling motion greatly reduces friction, improving engine efficiency and the longevity of the valve train components. Rollers are also used in bearings, which are found in many rotating parts of the vehicle, such as wheels, transmissions, and differentials.
Common Issues to Expect With Belts, Chains, and Rollers
Belts
- Cracking and Fraying: Rubber belts deteriorate over time, leading to cracks and frayed edges. This weakens the belt and can cause it to snap.
- Slipping: Worn or loose belts can slip, reducing the performance of accessory components (e.g., weak power steering and poor A/C).
- Squealing: A squealing noise usually indicates a slipping belt, which can be caused by wear, looseness, or contamination.
- Snapped Belts: A severely damaged belt results in the immediate failure of the driven accessories, leading to overheating or other serious issues.
- Timing Belt Failure: If a timing belt breaks, it can cause severe engine damage due to a valve-piston collision.
Chains
- Stretching: Timing chains can stretch over time, affecting valve timing and engine performance.
- Wear and Tear: Chain links and sprockets can wear down, leading to noise and timing issues.
- Tensioner Failure: Broken tensioners can cause the chain to become loose and potentially jump teeth, damaging the engine in the process.
- Lubrication Issues: Insufficient oil lubrication can accelerate chain wear and early failure.
Rollers
- Bearing Failure: Bearings within rollers can wear out or break, causing noise, vibration, and eventual failure.
- Wear and Tear: Roller surfaces can deteriorate over time, reducing their effectiveness and causing noise.
- Tensioner/Idler Roller Failure: Tensioner and idler rollers can seize or wobble if not maintained or replaced at once.
- Noise: Worn rollers often produce squealing, grinding, or rattling noises.
- Seizing: Rollers can seize due to lack of lubrication or bearing damage.
If you’re looking for OEM replacement parts for your chains, belts, and rollers, check out Carpartas’ catalog. Each product in our store is sourced directly from the manufacturer, guaranteeing its durability and quality. We also offer worldwide delivery, which means you don’t have to leave the comfort of your home while ordering the needed parts for your vehicle.

