DOUBLE-ROW ROLLING BEARING AND ROTATING SHAFT SUPPORTING STRUCTURE OF SPEED-INCREASING GEAR FOR WIND POWER GENERATOR

摘要

PPROBLEM TO BE SOLVED: To provide a double-row rolling bearing capable of suppressing the rise of the temperature of the bearing by maintaining an agitating resistance caused by the rotation of the bearing to a small value while maintaining a lubricating performance by an oil supply/discharge mechanism of a simple structure. PSOLUTION: This double-row conical roller bearing 11 comprises an inner ring 12, an outer ring 13, conical rollers 14 disposed double between the inner ring 12 and the outer ring 13, and a cage 15 holding distances between the conical rollers 15. Oil supply ports 16 for supplying a lubricating oil to the inside of the bearing are formed at both ends of the bearing. An oil discharge port 13a is formed in a spacer 17 positioned between the divided parts of the outer ring 13. PCOPYRIGHT: (C)2006,JPO&NCIPI