4L780 DURAFLEX GL FHP V-BELT TOP WIDTH: 1/2 INCH V-DEPTH: 5/16 INCH Bando Duraflex GL V-Belt Light Duty High Speed Drive 4L Section 1/2 in Top Width 78 in Outside Length 0.31 in Thickness 2-1/2 in Minimum Pulley Dia Neoprene Polyester Reinforced Features: Oil heat and ozone resistant bias cut rubber impregnated fabric cover protects inner components for long life High strength polyester tensile cords provide maximum fatigue and stress resistance The cords are positioned supported and protected by the insulation section for uniform load distribution The special rubber compound in the body of the belt is formulated to flex around small sheaves and dissipate heat build up to extend belt life Meets RMA standards for oil and heat resistance and static conductivity Specs: Section Size:4L Reinforced Material:Polyester Minimum Pulley Diameter:2-1/2 in Outside Length:78 in Top Width:1/2 in Material:Neoprene Thickness:0.31 in Type:Light Duty High Speed Drive Certifications/Standards: RMA IP-23