Kædespænding

Kædespænding refers to the appropriate tension of a chain, typically found in bicycle drivetrains, motorcycles, or industrial machinery. Proper chain tension is crucial for efficient operation, longevity of components, and rider safety.

If a chain is too loose, it can derail from the sprockets, leading to potential damage to the drivetrain and a loss of power. A slack chain also increases wear on the chain, sprockets, and other related parts due to increased impact and improper engagement. In some applications, a loose chain can also pose a safety hazard, especially if it comes off while in motion.

Conversely, a chain that is too tight can also cause problems. Excessive tension puts undue stress on the chain itself, bearings, seals, and sprockets, leading to premature wear and potential failure of these components. It can also create drag, reducing efficiency and making pedaling or operation more difficult. For bicycles, an overly tight chain can feel stiff and unresponsive.

The optimal kædespænding allows for a small amount of play or slack, often described as a specific amount of deflection or looseness. This amount varies depending on the application and the specific type of chain and sprockets used. Manufacturers typically provide guidelines or specifications for the correct chain tension.

Adjusting chain tension usually involves moving the rear wheel or an idler pulley backward or forward within a mounting system, or by using a dedicated tensioning mechanism. Regular checks of chain tension are recommended as part of routine maintenance to ensure consistent performance and prevent issues.