Belt tensioners 3922900, 3934831, 3933725, and 5333477 are suitable for diesel engines NT855, 4BT, 6BT, 4BTA, 6BTA5.9, and QSB5.9.

Belt tensioning pulleys 3922900, 3934831, 3933725, and 5333477 are suitable for diesel engines NT855, 4BT, 6BT, 4BTA, 6BTA5.9, and QSB5.9.

"Belt tensioning" refers to the process or state in a belt drive system where appropriate tension is applied to the belt to create the necessary friction and contact pressure between the belt and pulleys, ensuring efficient and reliable power transmission while reducing wear, slippage, and vibration.

Preventing slippage:

This is the primary purpose of tensioning. If the belt is too loose, it will slip relative to the pulley surface during power transmission, resulting in:

Power transmission loss: Power from the engine or motor cannot be effectively transmitted to the driven equipment.

Reduced efficiency: Energy is converted into useless heat during slippage.

Belt overheating and accelerated wear: Slippage friction generates high temperatures, rapidly damaging the belt.

Unstable Speed: Fluctuations in the rotational speed of the driven equipment.

Transmitting Designed Power:

Belt drives rely on friction to transmit torque (rotational force). The magnitude of the friction is proportional to the normal pressure between the belt and the pulley grooves. Proper tension ensures sufficient normal pressure to transmit the maximum torque designed to be delivered by the system without slippage.

Belt tensioning is a crucial measure to ensure the reliable, efficient, smooth operation and sufficient service life of a belt drive system. It creates the necessary friction between the belt and pulley by applying an appropriate initial tension (preload) to transmit the designed torque while minimizing harmful slippage, vibration, and excessive wear. Regularly checking and adjusting belt tension is an important part of equipment maintenance.