Patent ID: 7393140
Filing Date: 2008-07-01
Classification: F16C,F16J,G01P

Abstract:
1. A vehicle rolling bearing comprising: an inner member including an inner ring and a wheel hub integrally formed with a wheel mounting flange at an outboard side end, said wheel hub including an integrally formed stepped portion of smaller diameter axially extending from the wheel mounting flange toward an inboard end, said inner ring fitted on the stepped portion, said inner ring outer circumferential surface having at least one double row inner raceway surfaces; an outer member mounted on a stationary member and formed with double row outer raceway surfaces on an inner circumferential surface opposite to the inner raceway surfaces; double row rolling elements arranged between the outer and inner members; sealing devices for sealing annular spaces between the outer and inner members; an inboard sealing device including an annular seal with a first portion fitted on one end of the outer member forming a stationary side, said annular seal including a sealing portion on the inner member at the inboard end of the wheel hub; a pulsar ring mounted on said inboard end of the inner member forming a rotary side; said pulsar ring sealed between said inner and outer members by said annular seal, and said pulsar ring positioned radially between said first portion and said sealing portion of said annular seal, an encoder mounted on a cylindrical holding portion arranged opposite to the annular seal, said encoder including magnetic poles formed by magnetic powder and alternating the polarity along its circumferential direction; a detecting sensor passing through the cylindrical portion of the seal or through the one end of the outer member and opposing the encoder to keep a predetermined air gap between the encoder and detecting member.