ROLLER BEARING DEVICE

摘要

A rolling bearing device is a combination of a rolling bearing and an oil supply unit which includes at least: a lubrication oil tank having a lubrication oil discharge port. The oil supply unit is in a housing space inside a spacer adjacent to the rolling bearing, and the housing space is between an inner ring and an outer ring. The housing space for the lubrication oil tank has a width approximately equal to an axial width of the spacer and a circumferential length within a range of a center angle θ in an axial view of the spacer; and the lubrication oil tank housed in the housing space is provided by a bag which has a width approximately equal to an axial width of the housing space and a length approximately equal to A×π×(θ/360), where A represents a center diameter of the spacer.

主权项

1. A rolling bearing device comprising a combination of a rolling bearing and an oil supply unit which includes at least: a lubrication oil tank having a lubrication oil discharge port, a pump; a driving section; an electric source section; and a controller; the oil supply unit being between an inner ring and an outer ring of a spacer adjacent to the rolling bearing; wherein a space for the lubrication oil tank in the oil supply unit has a width equal to an axial width of the spacer and is within a range of a center angle θ in an axial view of the spacer; and the lubrication oil tank in the oil supply unit is provided by a bag which has a width equal to an axial width of the spacer and a length equal to A×π×(θ/360), where A represents a center diameter of the spacer.