jcb 5CX - Main Bearing

15 - Engine
12 - Crankshaft
03 - Main Bearing
15 - 82 9813/6900-6 15 - 82
03 - Main Bearing
Introduction .................................................... 15-82
Check (Condition) .......................................... 15-83
Remove and Install ....................................... 15-83
Introduction
In a piston engine, the main bearings are the
bearings on which the crankshaft rotates.
The bearings hold the crankshaft in place and
prevent the forces created by the piston and
transmitted to the crankshaft by the connecting rods
from dislodging the crankshaft, instead forcing the
crank to convert the reciprocating movement into
rotation.
Figure 296.
A
B
A Main bearing
B Crankshaft