... Nomenclature of Open Belt Drive dL - Diameter of the larger pulley dS – Diameter of the smaller pulley αL- Angle of wrap of the larger pulley αS – Angle of wrap of the smaller ... and Gupta J.K., Text book on Machine Design, Eurasia Publishing House, New Delhi. 5. Sharma, C.S. and Purohit Kamalesh, Design of Machine Elements, Prentice Hall of India, New Delhi, 2003. ... What are the advantages of a belt drive? A1. The advantages of a belt drive are that, it can absorb a good amount of shock and vibration. It can take care of some degree of misalignment between...