To provide a self-aligning type double-row bearing, stably used as a free side bearing of a rotating shaft for a long time.
A lubricating hole 9 allowing grease in the interior of the bearing to leaking out with the rotation of an inner ring 4 and an annular lubricating groove 10 connected to the outlet of the lubricating hole 9 are provided in the central part in the axial direction of the outer ring 2, and an inlet part 9a of the lubricating hole 9 is formed tapered so that as it approaches the inside diameter surface of an outer ring 2, it becomes wider, whereby the grease is made to more easily flow from the interior of the bearing toward a clearance gap between the outside diameter surface of the outer ring 2 and the inner surface of the housing A to keep the slidability in a space up to the housing A favorable over a long period of time.
KODAMA TAMOTSU
KONDO HIROMITSU
Higashio Masahiro
Torii Kazuhisa