motor bearing

Under normal circumstances, the bearing temperature limit varies depending on the bearing type and the specific application used. The general guideline is that during operation, the bearing temperature should not exceed its maximum allowable temperature, usually 80°C to 120°C, depending on the bearing type and design.

For most bearings, when the temperature exceeds its maximum limit, the bearing will be damaged and may lead to equipment failure. Therefore, it is essential to maintain bearings within the appropriate temperature range.

Different types of bearings have different temperature requirements. In general, the temperature of grease lubricated bearings is higher than that of oil lubricated bearings, because the viscosity of grease is higher and the friction heat generated is more.

For spindle bearings, the temperature requirements are more stringent. The high temperature of the spindle bearing will lead to the decline of the spindle accuracy and affect the performance of the machine. Under normal circumstances, the temperature of the main shaft bearing should be kept below 50°C.

The temperature of the bearing is closely related to its working environment. The increase of ambient temperature will cause the bearing temperature to rise, and too high a temperature will have a negative impact on the bearing life.

Too much grease can also lead to overtemperature of the bearing. Too much grease will increase friction and heat generation, resulting in higher bearing temperatures. Therefore, during use, grease should be applied as needed.