A drive belt is a flexible loop that is used to connect multiple pulleys within a mechanical system. They are typically made from flexible, durable materials like rubber or various polymers which can withstand high tensile stress.
Drive belts are used for continuous power transmission. They are fitted on the exterior of the belt pulley and transfer power from the cam or crankshaft to other systems or accessories within the system. Drive belts are advantageous due to their simplicity, ease of installation/removal, and low cost - both purchase and maintenance costs.
They may also be referred to as wedge belts or serpentine belts.