FRICTION TRANSMISSION BELT

摘要

A friction drive belt (B) includes a compression rubber layer (11) which is provided on an inner periphery of a belt body (10) and transmits power between pulleys upon coming into contact with the pulleys. The compression rubber layer (11) includes a surface rubber layer (11a) having numerous pores (16) on a pulley contact surface, and an inner rubber layer (11b) which is provided toward an inside of the belt relative to the surface rubber layer (11a) and whose storage modulus at 25°C in a belt length direction is higher than that of the surface rubber layer (11a) and is in the range from 30 to 50 MPa.