Spherical connector - to the heart joint bearings, bearings of knowledge

Roller coaster good finish and exciting, a roller coaster can sit for dozens of people, a long row, high speed at high altitude orbit. People in the car screams as the roller coaster turn left, right, climb up, dive, a wave from the sky and the air. Long a roller coaster, a row of trunk line trunk connections. How can the roller coaster is in accordance with the track on the left turn, right turn, turn, reflexed? Reason is the trunk between the trunk and one artifact. This artifact is spherical connectors. Spherical connectors by centripetal knuckle bearing, the bearing of the body, transverse connecting shaft, the shaft of the body to connect the fork. Ball connectors are relatively free movement between the trunk and trunk, can be linked together, safely and reliably and can make the respective swinging free. So much trunk, long roller coaster can be rapidly through in the winding, ups and downs of the orbit.