BELT HABASIT CT-60 5/8|The types of belts shown below have been designed to meet a wide variety of needs. The A-Series was designed for moderate to heavy power transmission (variable operation; considerable or great inertia forces; heavy shock loads) and is only suitable for one-sided power transmission. The F-Series was designed for light to moderate power transmission (uniform or variable operation; small, medium or considerable inertia forces; shock loads), and is only suitable for one-sided power transmission. The S-Series was designed for light to moderate power transmission (uniform or variable operation; small or medium inertia forces) and is only suitable for one-sided or double-sided power transmission.