Bando 12-3V710 Power Ace Combo, 3VM710Bando 12 3V710 To resolve problem applications where belts are flipping over or jumping out of the sheaves, utilize Bandos series of Combo belts. The tie band assures lateral rigidity and guides the belts into the sheave grooves. The tie band, reinforced with high strength transverse tensile cords, is fully oil and heat resistant and permanently welds the individual belts together. Combos utilize the premium quality Power King and Power Ace belts,