| 摘要 |
<p>PURPOSE:To aim at the accurate detection of the number of rotation of a rotary ring by fitting a sensor rotor to the rotary ring via a corrosion-proof, thin plate like sleeve member and making a rotary sensor close thereto. CONSTITUTION:A sensor rotor 30 is fitted, via a sleeve member 40, to the fitting member 28 of an outer ring 20 consisting of a body 22 and a flange portion 24 for fixing a brake and a wheel. This sensor rotor 30 is formed with a non-magnetic thin plate, the sleeve member 40 is formed with a steel plate, and a corrosion-proof treatment is applied under an integrated state of these components. Accordingly, rust formed on the outer ring 20 is not propagated to the outer ring 20 and the sleeve member 40 is not subject to generation of rust so that the sensor 50 can be close to the sensor rotor 30 to detect the number of rotation of the wheel (outer wheel 20) accurately.</p> |
