Bearing device

A bearing device, comprising:

• a bearing comprising:
• an outer ring having an inner circumferential surface including a raceway surface;
• an inner ring having an outer circumferential surface including a raceway surface;
• and
• rolling elements and a seal ring which are disposed between said outer and inner rings;
• a lubricant supply unit body formed as a unit including:
• a lubricant storing tank;
• and
• a pump pumping lubricant from the lubricant storing tank;
• and
• said lubricant supply unit body being detachably attached to a vicinity of a shoulder portion of the inner circumferential face of said outer ring or a vicinity of a shoulder portion of the outer circumferential face of said inner ring, or to an inner side face of said seal ring.

A bearing device comprising:

• raceway members which perform relative motion and have opposed faces;
• a lubricant supply unit body which supplies lubricant to a space between said opposed faces and is disposed between the opposed faces of said raceway members;
• and
• said lubricant supply unit body comprises:
• a pump which discharges the lubricant;
• a nozzle attached to the pump and having a nozzle open end for discharging the lubricant;
• and
• a driving portion for driving the pump.

A bearing device comprising:

• raceway members which perform relative motion and have opposed faces;
• a lubricant supply unit body which supplies lubricant to a space between said opposed faces and is disposed between the opposed faces of said raceway members;
• and
• said lubricant supply unit body comprises:
• a pump which discharges the lubricant;
• and
• a control circuit for controlling an amount of lubricant discharged by said pump.

A bearing device, comprising:

• a bearing comprising:
• an outer ring having an inner circumferential surface including a raceway surface;
• an inner ring having an outer circumferential surface including a raceway surface;
• and
• rolling elements disposed between said outer and inner rings;
• a lubricant supply unit body formed as a unit including a pump which has a nozzle for discharging lubricant;
• and
• said lubricant supply unit body being detachably attached to a vicinity of a shoulder portion of the inner circumferential face of said outer ring or a vicinity of a shoulder portion of the outer circumferential face of said inner ring.

A bearing device, comprising:

• a bearing comprising:
• an outer ring having an inner circumferential surface including a raceway surface;
• an inner ring having an outer circumferential surface including a raceway surface;
• and
• rolling elements disposed between said outer and inner rings;
• a lubricant supply unit body formed as a unit including:
• a pump discharging lubricant;
• and
• a control circuit for controlling an amount of lubricant discharged by said pump;
• and
• said lubricant supply unit body being detachably attached to a vicinity of a shoulder portion of the inner circumferential face of said outer ring or a vicinity of a shoulder portion of the outer circumferential face of said inner ring.

A bearing device, comprising:

• a bearing comprising:
• an outer ring having an inner circumferential surface including a raceway surface;
• an inner ring having an outer circumferential surface including a raceway surface;
• and
• rolling elements and a seal ring which are disposed between said outer and inner rings;
• a lubricant supply unit body formed as a unit including:
• a lubricant storing tank;
• and
• a pump pumping lubricant from the lubricant storing tank;
• and
• a driving portion for driving said pump;
• and
• said lubricant supply unit body being detachably attached to a vicinity of a shoulder portion of the inner circumferential face of said outer ring or a vicinity of a shoulder portion of the outer circumferential face of said inner ring, or to an inner side face of said seal ring.

A bearing device, comprising:

• raceway members which perform relative motion and have opposed faces;
• a lubricant supply unit body disposed between the races which supplies lubricant to a space disposed between the opposed faces of said raceway members;
• and
• the lubricant supply unit body formed as a unit including:
• a pump discharging said lubricant from a lubricant storing tank;
• and
• a driving portion for driving said pump;
• and
• said pump being detachably attached to the bearing device.