Introduction of L28/32 Diesel Engine Parts Connecting Rod Bearings

The connecting rod bearing is a bushing, the connecting rod bearing is a bearing bush, the bearing bush is a semicircle, and the bushing is a full circle. The bearing bush is generally used on the big end, the bushing is generally used on the small end, the connecting rod bearing is the middle part connecting the connecting rod head and the crankshaft, and the connecting rod bushing is the middle part connecting the small end of the connecting rod and the piston pin. Rod bearing bushes generally need to be coated, and connecting rod bushings generally have no coating. The connecting rod bearing generally has no oil grooves and oil holes, while the connecting rod bushing generally has oil grooves or oil passages. Both the bearing bush and the bushing belong to the category of sliding bearings.

Connecting rod bearing:

Connecting rod big end bearing to reduce crankpin wear. The connecting rod big end bearing is a split sliding bearing. The big end bearing of the cross-head connecting rod is often made separately, and then the connecting rod bolt is fixed to the rod body, and the anti-friction alloy is often directly cast on its inner surface. For big-end bearings without cross-head connecting rods, the upper half is often made into one piece with the shaft, while the lower half of the bearing cover is manufactured separately, and then connected to the upper half with connecting rod bolts. , The inner surface of the lower half is equipped with bearing bushes. For lubrication, oil holes are drilled on the big end bearing, and oil grooves and garbage grooves are opened on the surface of the anti-friction alloy.