The Perkins Main Bearing 198586140 is a precision-engineered bearing set designed to support the crankshaft in Perkins diesel engines, ensuring smooth rotation and reducing friction between moving parts. It’s a vital component in engine bottom-end assemblies, helping maintain proper alignment under heavy loads and high RPM.
Where It Is Used
This main bearing set is commonly used in:
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Perkins 400 series diesel engines such as 404C-22 and 404D-22 engines used in generators and industrial machinery
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Heavy-duty diesel generator engines and industrial power units
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Construction, agricultural and material-handling equipment powered by compatible Perkins engines
Key Functions
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Crankshaft support: Provides a smooth, stable surface for the crankshaft journals to rotate, minimizing wear and heat buildup
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Friction reduction: Engine bearings reduce metal-to-metal contact and help distribute engine oil to lubricate moving parts
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Engine longevity: By maintaining correct alignment and reducing friction, bearings help extend overall engine life and performance.
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