Bando V belt A - 57 is used  at 10" pulley on the mechanical buffalo model std to the clutch, every one unit mechanical bufflo use 2 pc.
 
Understanding the Bando V-Belt A-57
Component: The Bando A-57 is a Classical V-Belt (A-section) designed for industrial and agricultural applications. It’s part of Bando’s Power King series, known for durability and efficiency in power transmission.
Specifications (per search results,,):
Length: 57 inches (Li 57", Lo 58", Lp 57.3").
Width: 0.5 inches (1/2 inch top width).
Height: 0.31 inches (5/16 inch V-depth).
Construction:
Bias-cut, rubber-impregnated fabric cover for flexibility and friction resistance, oil- and heat-resistant.
Ultra-high-strength polyester cords for fatigue resistance and length stability.
Insulation section to support tensile cords and prevent separation.
Certifications: Meets RMA standards for static conductivity; API-certified for oil field use (Red Seal variant).
Performance: Approximately 60% higher power transmission capacity than Green Seal belts, ideal for heavy-duty applications like MB tillers.
Temperature Range: -30°C to +90°C (-22°F to +194°F).
Role in Mechanical Buffalo: In an MB (a two-wheeled tractor or power tiller), the V-belt likely transfers power from the engine (e.g., 8–12 HP diesel) to the gearbox, which drives the right-side drive shaft (long stripes) and front wheel (supported by the bushing). The belt may also drive implements (e.g., rotary tiller) or accessories. The control carriage lock with chain could secure the wheel or implement during operation, ensuring stability under the belt-driven load.
 
Application in MB
Function: The A-57 V-belt connects the engine’s pulley to the gearbox input pulley, transmitting power to the drivetrain (including the right-side drive shaft) or implements. It’s critical for tasks like plowing, tilling, or transport.
 
Relation to Prior Components:
Right-Side Drive Shaft (Long Stripes): The belt drives the gearbox, which powers the shaft, ultimately turning the right wheel.
Front Wheel Bushing: The bushing in the wheel hub supports the shaft’s rotation, and a worn belt could cause vibrations that stress the bushing.
Control Carriage Lock with Chain: The lock may secure the wheel or implement to handle the belt-driven torque, preventing movement during heavy loads or storage.
Fitment: Ensure the A-57 matches the MB’s pulley dimensions and power requirements. MB models (e.g., Kubota, Siam Kubota) vary, so verify the belt length (57 inches) and section (A-type, 0.5" width) in the MB manual.