FLOWMETER

PROBLEM TO BE SOLVED: To prevent a liquid supplied to the bearings of a flowmeter used for measuring the liquid from staying in the bearings. SOLUTION: In a weighing chamber 3 provided in the casing 2 of a flowmeter 1, two sets of rotors 4 and 6 (5 and 7) are rotatably supported on rotating shaft 8 (9). A bearing section 20 which rotatably supports the upper end 8a (9a) of the rotating shaft 8 (9) is provided above a top lid 15. Then a bearing section 21 and a pivot bearing which rotatably support the lower end 8b (9b) of the shaft 8 (9) are provided on the lower surface of a lower side plate 14. In addition, spiral grooves 8c and 8d (9c and 9d) are provided on the outer peripheries of both end sections of the shaft 8 (9). When the rotors 4 and 6 (5 and 7) rotate, the grooves 8c and 8d (9c and 9d) supply a liquid to both ends of the shaft 8 (9) and replace the liquid in the liquid reservoirs of the bearing sections 20 and 21 and pivot bearing with a fresh liquid. Therefore, the solidification of the liquid can be prevented.