Bearing`s e.g. antifriction bearing, operating temperature monitoring device for vehicle, has indicator without power supply, and temperature sensitive arranged on bearing cover, where unit changes its color based on operating temperature

摘要

The device (7) has an indicator without a power supply. A temperature sensitive unit (8) is arranged on a bearing cover. The temperature sensitive unit changes its color based on operating temperature (T). The temperature sensitive unit indicates an irreversible color change when exceeding a threshold value of the temperature. The graduated threshold values of the temperature have respective irreversible color change. An indicator without power supply is included in the device.