Patent ID: 9618040
Date: 2017-04-11
CPC Classifications: E02F,F16C

Claim:
1. A double-structure bush made of a polymeric composite, the double-structure bush constructed and arranged to be placed between a boss and a pin unit inserted thereinto, and the double-structure bush comprising: a slide layer configured to receive the pin unit, in which the inner circumferential surface of the slide layer is in contact with the pin unit to support rotation of the pin unit; and a load support layer integrally stacked on the outer circumferential surface of the slide layer, configured to be received in the boss, in which the load support layer is in contact with the inner circumferential surface of the boss to support radial load of the pin unit, wherein the slide layer is made of a first polymeric composite and the load support layer is made of a second polymeric composite, wherein the first polymeric composite comprises a first polymeric matrix, a self-lubricative material, and a first fiber base, and wherein a softening temperature of the load support layer is higher than that of the slide layer.