Endurance against heat and speed fluctuations is required in drive belts because they are constantly rotating at high speeds. Mitsubishi genuine drive belts, which have been developed after undergoing endurance tests for high temperature and high tension, have the capacity to withstand severe driving conditions.

1. Heat resistance: The belts withstand fluctuating friction heat in accordance with the revolution
speed.
2. Cold resistance: The belts are capable of operating with high performance even under harsh
conditions such as minus 30^oC weather.
3. Endurance: The belts use materials that enhance their endurance to friction and generate less
noise.