Bearing Unit And Gearing

Abstract: A bearing unit (20) comprises a first bearing (21), a first bearing holder (22), and an oil thrower (23). The first bearing (21) rotatably supports a shaft (64). The first bearing holder (22) holds the first bearing (21) while the shaft (64) is inserted in a through-hole. The oil thrower (23) is mounted on the shaft (64) between the first bearing holder (22) and the first bearing (21) and extends toward the first bearing holder (22) to form a labyrinth structure (24) between itself and the first bearing holder (22). A plurality of grooves (23f) aligned in the circumferential direction are formed in the outer peripheral surface of the oil thrower (23).

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