Speed sensing bearing unit
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United States of America Patent
Stats
-
Feb 2, 1993
Grant Date -
N/A
app pub date -
Apr 3, 1992
filing date -
Apr 3, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In a speed sensing bearing unit comprising a fixed ring with a pair of outer ring raceways on its inner peripheral surface, a pair of inner rings with inner ring raceways on their outer peripheral surfaces corresponding to the outer ring raceways, a plurality of rolling bodies provided between the fixed ring and the inner rings, a pulse rotor supported on one of the pair of inner rings, and a sensor supported opposing the outer peripheral surface of the pulse rotor, the pulse rotor comprises a main body of magnetic material having a cage-like cylindrical shape and a plurality of through-apertures formed at circumferentially evenly spaced intervals and an engaging element of a non-magnetic resilient material formed to be fitted into the through-apertures and having hook portions protruding from an inner peripheral surface of the engaging element to engage with grooves formed in the outer peripheral surface of the other of said inner rings.
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