barrel rib

基本解释

Is the dog slab sided (lack of rib spring) or barrel ribbed (too wide)?
狗肋部是平板的（肋骨彎曲不足）還是桶狀肋（太寬）？
These bearings have no central rib on the inner ring and are therefore able to use longer barrel rollers.
這些軸承已沒有中央肋骨的內圈，因此能夠使用較長每桶輥。
These bearings do not have a central rib on the inner ring so longer barrel rollers can be fitted; improved kinematics, optimised surfaces and even higher performance materials are possible.
這些軸承沒有內圈上，使輥筒長可安裝中央肋骨，改進運動學，優化的表麪，甚至更高性能的材料是可能的。