Tangential belts 1.Minimizing the slip between beltand pulley and thus elongates the life of belt. 2.The special material for belt surface makes little noises during the running. 3.The high friction and flexibility minimizes the slip at the start and thus shortens the time to reach the expected r.P.M. 4.Noticeably less fissures develop on the surface even after the expected life time of belt has elapsed.