For Laand Rover Discovery 4 3.0L TDV6 Crankshaft Kit Crankshaft Kit Laand Rover Bearing For Rover Discovery 3 & 4 TDV6 2.7L & TDV6 3.0L Crankshaft Bearing 88mm & 90mm

Crankshaft kit laand rover bearing for Laand Rover Discovery 3 & 4 TDV6 2.7L and TDV6 3.0L crankshaft bearing 88mm and 90mm stroke

In a piston engine, the main bearings are the bearings on which the crankshaft rotates, usually plain or journal bearings. 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.

Increasing the number of bearings in an engine will generally increase the size and cost of the engine, but also provides stability to the crankshaft, which would otherwise have to endure greater bending moments from having the crank pin further from a bearing. The combination of bearing number and crankshaft design can also have an effect on engine balance; a more stable crankshaft will better avoid unbalance from flexing, but increasing the crankshaft length or girth to accommodate an additional bearing increases the rotational inertia of the crankshaft, which can have the opposite effect.

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