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Bearing Cap (Main)

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Bearing Cap (Main)
Benefit: Cost Saving, Improved Performance, Increased Component Complexity, Weight Saving
Main Forming Process: Conventional Processing
End Use Sector: Automotive
Material: Bronze


Main Bearing Cap Set Bearing cap for the crankshaft of a four cylinder petrol engine. 1.2 litre, 8 Valves. Has machinability similar to cast iron, plus advantages in lower machining costs and higher strength than equivalent cast iron part.


Main bearing caps are a recent addition to PM which has been found more economic than the cast iron caps they have replaced. They have the advantages of reduced weight, higher strength, and reduced machining costs. Very close dimensional stability thanks to PM technology.

Component Specification

Weight (g): 350 - 500
Density (g/cm3): 6.5
Tensile Strength (MPa): >215
Hardness (HB): >100

The information contained in these case studies is provided by third parties and although EPMA does its best to ensure the case studies are accurate it is not liable for any mistakes or wrong information

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