These essential components are rubber loops that transfer rotational motion from the motor to the various moving parts within a cassette player, such as the capstan, reel hubs, and take-up spool. A typical cassette mechanism requires multiple, varying in size and thickness to accommodate the specific needs of each function. For example, a thicker, more robust band may drive the supply and take-up reels, while a thinner, more precise one powers the capstan, crucial for maintaining consistent tape speed and sound fidelity.
Proper function is critical for accurate playback and recording. Without these crucial links, the tape cannot move at the correct speed or tension, resulting in distorted audio, wow and flutter, or complete failure to operate. The material itself is subject to deterioration over time due to wear, stretching, and environmental factors like temperature and humidity. Their quality and condition significantly impact the performance and longevity of a cassette deck. During the heyday of cassette tapes, these were often replaced as part of routine maintenance to ensure optimal operation.
