BEARING UNIT AND MOTOR USING THE BEARING UNIT

摘要

A bearing unit rotatably supporting a shaft (51), comprising a radial bearing (55) for supporting the shaft in radial direction, a thrust bearing (66) for supporting one end of the shaft (51) in thrust direction, and a housing (56) allowing the radial bearing (55) and the thrust bearing (66) supporting the shaft (51) to be disposed therein and viscous fluid (57) to be filled therein, wherein the housing (56) is formed in a closed structure except for a shaft insert hole (65) for inserting the shaft (51) therein, a space (69) formed between the outer peripheral surface of the shaft (51) and the inner peripheral surface of the shaft insert hole (65) is formed such that can prevent the viscous fluid (57) filled in the housing (56) from leaking to the outside of the housing (56), and the housing (56) is integrally formed by using a synthetic resin formed body.