T417566 T415862 Crankshaft Main Bearing And Con Rod Bearing For PerKins C7.1

Specification

Perkins C7.1 engine crankshaft bearing (main shaft bearing) and connecting rod bearing

Component types and functions

1.Crankshaft bearing (main shaft bearing

Installation position: Between the crankshaft main bearing housing of the engine block and the crankshaft main journal.
Core functions
Provide lubrication for the crankshaft journal (form an oil film to prevent direct metal friction);
Support the stable operation of the crankshaft and absorb the impact force during its operation.
Transfer the radial load of the crankshaft to ensure the stability of power output.

2.Connecting rod bearing

Installation position: Between the big end of the connecting rod and the journal of the crankshaft connecting rod.
Core functions
Lubricate the mating surface between the connecting rod and the crankshaft connecting rod journal to reduce the wear of reciprocating motion.
Buffer the reciprocating impact force of the piston-connecting rod assembly to protect the crankshaft and connecting rod.

Component characteristics

Material: Usually "steel back + anti-friction alloy layer" (such as tin-lead alloy, copper-lead alloy), it takes into account both strength and lubricity.
Specification: Strictly match the journal size of the C7.1 engine crankshaft (available in standard size and enlarged size, which should be selected based on the wear condition of the crankshaft).
Brand: Perkins original parts (marked "Perkins" on the packaging), suitable for the working conditions of C7.1 engines (such as high-load scenarios of excavators and generator sets).

Change the scene and value

When the C7.1 engine experiences faults such as low oil pressure, abnormal crankshaft noise, connecting rod knocking sound, and excessive wear of the journal, the crankshaft bearing/connecting rod bearing needs to be replaced.
The new bearing can restore the fit clearance between the journal and the bearing (C7.1 standard clearance: 0.03 to 0.07mm for the main bearing and 0.02 to 0.06mm for the connecting rod bearing).
To prevent serious faults such as crankshaft scrapping and connecting rod breakage caused by "dry friction" between the journal and the bearing, it is an essential component for major and medium overhauls of C7.1 engines