What Causes Belt Drive Slippage?
1 Answers
Belt drive slippage is mainly caused by overload and other factors. Slippage is caused by overload: This occurs when the effective tension transmitted exceeds the maximum friction force between the belt and the pulley. The wrap angle of the smaller pulley is less than that of the larger pulley, meaning the contact area with the pulley is smaller, resulting in reduced friction. Belt drive failure: Slippage reduces transmission efficiency and happens when the belt is subjected to excessive tension beyond its limit. Slippage occurs on the smaller pulley due to the formula for minimum initial tension. From the formula, it can be seen that the smaller the wrap angle, the greater the required initial tension. Generally, the smaller pulley has a smaller wrap angle, so its minimum initial tension is higher. If the initial tension is less than this minimum, slippage will occur.