POWER TRANSMISSION DEVICE WITH BEVEL GEAR

摘要

A power transmission device having a bevel gear, in which backlash of the bevel gear can be appropriately maintained and adjusted and the appropriate backlash is maintained independent of whether the bevel gear rotates in the normal or reverse direction and of the magnitude of a load. In a power transmission device (56) in which a hypoid gear (bevel gear)(50)(or a shaft having the hypoid gear (50)) is supported via a bearing (BL), the bearing (BL) has a structure where rollers (rolling bodies (58)) can support without play a thrust load in both directions of the hypoid gear (bevel gear)(50)(or the shaft having the hypoid gear (50)) and where the pitch circle diameter (Pc2) of the rollers (58) is positioned radially outward from the inner ends (50A1) of the teeth (50A) of the hypoid gear (50).