DK28 diesel engine accessories connecting rod bearing bush

The connecting rod bearing of Marine diesel engine accessories is a bushing, the connecting rod bearing bushing is a bearing bushing, the bearing bushing is a semi-circle, and the bushing is a full circle. The bearing bush is generally used in the big head, the bushing is generally used in the small head, the connecting rod bushing is the middle part of the connecting rod head and the crankshaft connection, the connecting rod bushing is the middle part of the connecting rod small head and the piston pin connection in the high-speed engine, the connecting rod bushing generally needs to be coated, the connecting rod bushing is generally not coated. The connecting rod bushing generally has no oil groove, oil hole, and the connecting rod bushing generally has an oil groove or oil passage, and the bushing and bushing belong to the category of plain bearings.

Connecting rod bearing:

The connecting rod bearing bushing includes connecting rod upper and connecting rod lower, which is installed in the connecting part of connecting rod and crankshaft, and plays the role of wear-resistant, connecting, supporting and driving. The inner cylinder surface of the upper tile of the connecting rod is provided with an oil groove along the circumference, and the corresponding central Angle of the oil groove is 80 ~ 120°. The connecting rod tile wall of the oil groove is provided with an oil hole.

By setting an oil groove with a reasonable arc length on the connecting rod tile, the oil can be supplied to the piston at the most appropriate time and time during the working of the engine, so as to ensure good cooling of the piston and avoid cylinder wear and damage; At the same time, the reasonable arc length of the oil tank can ensure the oil supply, ensure reliable cooling, and avoid oil waste and the negative impact of too much oil on the engine work; At the same time, the positioning convex on the connecting rod tile enables the connecting rod tile to be assembled in a reasonable position, so that the oil groove of the connecting rod tile avoids the heavy load bearing area, and the wearing of the connecting rod tile is ensured.