V-Belt, Belt Material Polybutadiene, Edge Construction Wrapped, Industry Number B66, Number of Bands 1, Outside Length 69 in, Reinforcing Cord Material Polyester, Thickness 0.406 in, Top Width 21/32 in, Belt Trade Size B, V-Belt Type Classical, Maximum Operating Temperature 140 Degrees F, Minimum Operating Temperature -40 Degrees F, Resistance Properties Heat , Oil