Quote:
Originally Posted by JDM4E
Like this:
In longitudinal direction, in case of o tube or similar - now allow me to simplify - almost everything is relatively strong. Even a piece of paper rolled into a tube is quite strong like that. |
That drawing assumes that the joint attachment to the body is the weakest link. The joint isn't floating or free to bend without the bearing block separating from the body.
As for the tube, that assumes the material is strong in that direction. Carbon driveshafts have the fibers oriented to be strong with rotational forces at the sacrifice of longitudinal forces since they'll never see any force like that in a useful scenario.