Ceramic bearing
A technology of ceramic bearings and shafts, applied in bearings, bearing components, shafts and bearings, etc., can solve problems such as noise, user discomfort, and shortened bearing service life
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[0011] see figure 2 , image 3 , The ceramic bearing 10 provided by the first preferred embodiment of the present invention includes a shaft 20 and a bushing 30 .
[0012] The shaft 20 is in the shape of a cylindrical rod, and the bushing 30 is provided with a shaft hole 32 for the shaft 20 to pass through. The shaft hole 32 has a large diameter portion 34 and two small diameter portions 36. The two small diameter portions 36 They are respectively located at the top and bottom ends of the large-diameter portion 34 , the small-diameter portions 36 are attached to the outer edge of the shaft 20 , and there is a predetermined gap between the large-diameter portion 34 and the shaft 20 .
[0013] Because the shaft 20 is only in contact with the small diameter portion 36 of the shaft hole 32 of the bushing 30 with its two ends; so when the shaft 20 rotates relative to the bushing 30, the noise it sends is small, and because the shaft The friction between the core 20 and the bushi...
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