ROTOR OF ROTARY SENSOR AND ITS MANUFACTURE

摘要

PURPOSE:To obtain a rotary sensor wherein a rotor which is resistant to a mechanical shock is provided and to obtain its manufacturing method. CONSTITUTION:A rotor 1 which is press-fitted into a vehicle shaft 2 and which has been magnetized and a magnetic sensor 5 which is faced with the rotor 1, which is arranged in a knuckle 3 and which detects the magnetism of the rotor 1 are provided. The rotor 1 is constituted of a ring-shaped case member 11 which is provided with hollow parts 10 at the inside, of a magnetic member 12 which has been filled into the hollow parts 10 in a compressed state and which is composed of the powder of a magnetic substance such as a ferrite or the like and of a lid 101 which closes the hollow parts 10 and which holds the magnetic member 12.