The Main Bearing Big 0.10 – Part 750‑11210A is a precision‑engineered crankshaft main bearing undersize component designed to support the crankshaft journal in diesel engines and keep rotation smooth under load. It is commonly used as a replacement undersized main bearing where wear has occurred and engine rebuilds require an accurate fit.
Where It Is Used
This bearing is widely used in:
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Lister Petter diesel engines and similar industrial engines
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Generator set engines requiring main bearing replacement
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Marine, agricultural and construction diesel engines during engine overhauls
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Applications where the crankshaft journal has been machined undersize and a 0.10 mm undersize bearing is needed.
Key Functions
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Supports the crankshaft: Provides a precision surface for the crankshaft journal to rotate on
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Reduces friction & wear: Smooth metal surfaces prevent scoring and extend engine life
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Maintains oil film: Ensures proper oil lubrication under load conditions
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Vital for engine rebuilds: Used when replacing worn main bearings or after crankshaft grinding
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