What is the major drawback of using a chain drive compared to a belt drive?

The major drawback of using a chain drive compared to a belt drive is that a chain drive typically requires more maintenance. Chain drives consist of metal links and sprockets, which can wear out over time due to friction and the stresses of operation. Proper lubrication is essential to ensure smooth operation and to minimize wear, which necessitates regular maintenance checks and adjustments. Additionally, chain drives can stretch over time, requiring periodic tensioning to maintain proper function.

In contrast, belt drives often have a lower maintenance requirement as they do not suffer from the same level of wear and tear as chains. Belts made from materials such as rubber can absorb some shock and wear more gradually, leading to longer intervals between maintenance. This maintenance frequency and the need to check alignment and tension in chain drives highlight their more demanding maintenance requirements compared to belt drives.