SEAL STRUCTURE OF ROLLING BEARING

PROBLEM TO BE SOLVED: To provide a seal structure of a rolling bearing which reduces shear force to be generated due to shaft rotation and reduces friction torque of a seal by increasing an oil film thickness on the atmospheric side of a lip sliding part.SOLUTION: The seal structure of the rolling b...

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Bibliographische Detailangaben
1. Verfasser:	TAJIRI ATSUSHI
Format:	Patent
Sprache:	eng
Schlagworte:	BEARINGS BLASTING ELEMENTS OR CRANKSHAFT MECHANISMS ENGINEERING ELEMENTS AND UNITS FLEXIBLE SHAFTS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING ROTARY BODIES OTHER THAN GEARING ELEMENTS SHAFTS THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a seal structure of a rolling bearing which reduces shear force to be generated due to shaft rotation and reduces friction torque of a seal by increasing an oil film thickness on the atmospheric side of a lip sliding part.SOLUTION: The seal structure of the rolling bearing includes a seal lip having an atmospheric-side slope and a sealed fluid-side slope on both sides of the lip sliding part, and is provided with a through hole passing from a sealed fluid side through an atmospheric side of the seal lip. Oil flowing from the sealed fluid side through the through hole to the atmospheric side and along the atmospheric side slope is sucked to the sealed fluid side by pump action. The amount of oil sucked by the pump action is at least equal to or larger than the amount of oil flowing out from the sealed fluid side through the through hole to the atmospheric side and flowing along the atmospheric-side slope.