To provide a connecting rod bearing that hardly has its bearing inner peripheral surface damaged by foreign matter and can reduce the leak amount of lubricating oil.
A half-split bearing 31 which constitutes a connecting rod bearing 3 has a main cylindrical part, a crash relief, and a transition region. Then the crash relief is formed to be larger in depth from a virtual inner peripheral surface at a position on an end face of the half-split bearing 31 in a peripheral direction t han at a position connecting with the transition region. Further, the main cylindrical part is provided with a plurality of peripheral grooves successively in the peripheral direction to the overall length in the peripheral direction, and the plurality of peripheral grooves are provided successively even in the transition region.
KOJIMA MOTOHIKO
Hideto Asamura
Hajime Asamura
Koji obi
Katsunori Shirae