| 主权项 |
1. A cartridge joint, comprising
a pin, a first collar circumferentially surrounding the pin and fixed thereto, a second collar circumferentially surrounding the pin and fixed thereto, a bushing positioned axially between the first collar and the second collar and circumferentially surrounding the pin for relative rotation between the bushing and the pin, and an annular first seal unit and an annular second seal unit each of which circumferentially surrounds the pin, the first seal unit positioned axially between the bushing and the first collar so as to establish a sealed connection therebetween and comprising an angularly flexible first convoluted seal contacting the bushing and the first collar, the second seal unit positioned axially between the bushing and the second collar so as to establish a sealed connection therebetween and comprising an angularly flexible second convoluted seal contacting the bushing and the second collar; wherein each of the first and second seal units comprises a first lodging device and a second lodging device, with respect to the first seal unit the first lodging device lodges a first end portion of the first convoluted seal against the bushing and the second lodging device lodges a second end portion of the first convoluted seal against the first collar, and with respect to the second seal unit the first lodging device lodges a first end portion of the second convoluted seal against the bushing and the second lodging device lodges a second end portion of the second convoluted seal against the second collar. |
