Electricity: measuring and testing – Magnetic – Displacement
Patent
1996-05-30
1998-03-03
Snow, Walter E.
Electricity: measuring and testing
Magnetic
Displacement
32420725, G01P 344, G01P 3487, G01P 348
Patent
active
057239770
ABSTRACT:
A composite annular element, in particular a magnetic ring usable as a pulse wheel in a rolling bearing of a vehicle wheel hub; the element includes an appropriately polarized plastoferrite ring co-molded onto a metal annular ring for fitment to a rotary member; the metal annular ring is formed in one piece by pressing and bending sheet metal, and presents a sleeve portion for fitment to the rotary member, and a flange portion defining a shoulder for withstanding the axial thrust exerted by an assembly fixture, and connected continuously to the sleeve portion by a rib projecting radially outwards of the sleeve portion; the rib being defined by a 180.degree. bend partially embedded inside the plastoferrite ring so as to leave a continuous annular radial clearance between the plastoferrite ring and the sleeve portion of the metal annular ring; and the rib preferably presenting locking means, which are embedded in the plastoferrite to prevent the metal annular ring and the plastoferrite ring from rotating in relation to each other.
REFERENCES:
patent: 5166611 (1992-11-01), Kujawa, Jr. et al.
Cacciatore Rolando
Genero Matteo
Moretti Roberto
SKF Industrie S.p.A
Snow Walter E.
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