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US 6,685,357 B1Granted
Transmission shaft set
AssigneesNewcera Technology Co., Ltd., New Century Technology Co., Ltd.
InventorsChao-Nien Tung, Shih-Jen Lin, Kuo-Chu Hsieh, Yi-Da Chiu
Life of this patent
Estimating the term…
Abstract
A transmission shaft set includes a shaft for use in a motor for power output and an axle bush adapted to support the shaft, the shaft and the axle bush being respectively made of material of high toughness and material of high harness such that the hardness difference between the shaft and the axle bush is about Hv100˜Hv400, and the hardness of the axle bush is higher than the shaft.
Claims5
A transmission shaft set for use in a motor for power output, comprising:
- a shaft with one end attached to a fan, and;
- an axle bush adapted to support another end of said shaft, wherein said shaft is made of a first material and said axle bush is made of a second material, such that a hardness difference between said first material and said second material is in a range of Hv100˜Hv400, and wherein the hardness of said second material is higher than said first material.
Dependencies are inferred from the claim text.