These values are given for ambient temperature between -30°C to 30°C. The max. operating tempreture is 90°C for DEL / ROC belts, intermittent up to 100°C, 110°C if there is very little load onthe belts, and 70 °C for DEL / Flex belts. A temprerature grater than 30°C reduces traction ratings given above; take safety coefficient or carry out a sample trial in situ.