Main bearings / STD / Kubota V3307 / Kubota M5040 / M7040

Standard size (STD) crankshaft main bearings , 20.80 mm wide, 2.45 mm thick and approximately 86 mm in diameter for Kubota tractors, Kubota M5040, Kubota M7040 series, with Kubota V3307 engines and others.

Main engine bearings are semicircular rings that are mounted in special grooves (holders) in the engine block, between the crankshaft (main shaft) and the engine block (applies to the central shaft journals) in order to eliminate play that occurs during engine operation. Main bearings, bearing the shaft, ensuring the proper position of the shaft relative to the engine block so that the generated power is transmitted as smoothly as possible.

Dimensions ;

• outer diameter: 86 mm,
• width: 20.80 mm,
• thickness: 2.45 mm,
• original part numbers: 1G772-23472,
• part numbers: 6-07-100-26.

Tractor models:

Kubota :

• Kubota M5040,
• Kubota M7040.

Engine models :

• Kubota V3307.

The first signs of wear of the main bearings are an unnatural, steady knocking coming from the engine. Worn bearings must be replaced with new ones as soon as possible, replacing the faulty element too late can cause serious damage to the shaft, connecting rod or engine.

Magazine : K18:F16:S02

*Photos are for illustrative purposes only and may differ in detail from the delivered product due to differences in production over the years.