BEARING EQUIPPED WITH ROTARY SENSOR AND POWER TOOL UTILIZING THE BEARING

摘要

PROBLEM TO BE SOLVED: To provide, a bearing where temperature can be detected without another addition of a sensor, and a power tool utilizing the bearing. SOLUTION: A pulsar ring 4 is mounted on an inner race that is a bearing ring of a rotating side and a rotation detecting sensor 8 is mounted at an position opposed to the pulsar ring 4a on an outer race. An output signal of the rotation detecting sensor 8 is fed to a buffer 14 to detect ambient temperature.