| 摘要 |
PROBLEM TO BE SOLVED: To provide a rolling bearing which is operated under low torque, has superior reliability and is easily assembled.SOLUTION: There is provided a rolling bearing 1 including: an outer ring member 2 having two rows of outer ring raceways 2a; an inner ring 3 having an inner ring raceway 3a at the outer periphery center of the inner ring; two rows of a plurality of conical rollers 4 arranged in a freely rollable manner between the outer ring raceway 2a and the inner ring raceway 3a; and two cages 5 in which a plurality of pockets 5a for holding the plurality of conical rollers 4 are formed. The conical roller 4 has a cone-shaped rolling surface 4a. The outer ring member 2 has: two rows of outer ring raceways 2a of cone shape whose large diameters are along an axial center direction of the outer ring member 2; and two rib surfaces 2b which are diametrically reduced from large diameter ends of both outer ring raceways 2a toward a diametrical inside and are in contact with the large diameter-side end surfaces of the rolling surface. The inner ring 3 is formed into such a spherical shape that the inner ring raceway 3a are in internal contact with the rolling surfaces 4a of the two rows of the plurality of conical rollers 4. |
