Engine bearings

Engine bearings, such as main bearings and rod bearings, are small yet essential components inside every combustion engine. They allow the crankshaft, rods, and sometimes the camshaft to rotate smoothly within the engine block while minimizing resistance and wear.

These bearings rely on a thin film of pressurized engine oil to create a lubricated surface between moving parts. This oil film prevents direct contact, absorbs vibrations, and distributes the mechanical load evenly. They’re built with extreme precision and made from alloys designed to handle heat, pressure, and continuous movement.

Worn or damaged bearings can lead to knocking noises, low oil pressure, increased play, or even complete engine failure. That’s why bearing replacement is a critical part of any engine overhaul or high-mileage maintenance.

Key features and uses:

• Support the crankshaft, connecting rods, and camshaft

• Allow low-friction rotation under pressure and heat

• Require consistent oil lubrication to function properly

• Made from durable metals like aluminum or copper alloys

• Available in multiple sizes and tolerances for exact fit

At Sanders Parts, we provide precision-engineered engine bearings that meet OEM standards — delivering smooth rotation and reliable performance under any load.