V Belt AX61 1/2"x5/16"x63" V Belt B66 (5L690)  5/8"x13/32"x69" V Belt A91 (4L930) 1/2"x5/16"x93"
V Belt BX57  5/8"x13/32"x60" V Belt B65 (5L680)  5/8"x13/32"x68" V Belt A94 (4L960) 1/2"x5/16"x96"