Aug 29, 2024 · Main journals are located along the length of the crankshaft and are positioned in line with the engine’s crankcase. These journals sit within the main bearings, which are housed in the …

As can be seen above, there are two types of journal on a crankshaft - the main bearing journals form the axis of rotation for the crankshaft, and the connecting rod journals are secured to the ends of the …

Stay informed with exclusive local news from our communities. Main Street Journal, owned by Main Street Media, delivers trusted stories, updates, and in-depth reporting. Subscribe now.

Rotation and Support: Main journals rotate within the engine block’s main bearings, held in place by main bearing caps. This rotation is crucial for the crankshaft’s function and the engine’s overall …

Jan 1, 2023 · A typical crankshaft is made up of a series of main journals that support the crank in the block and a series of rod journals offset from the crank centerline that are affixed to the...

Jan 7, 2025 · The main journal is responsible for transmitting power from the engine to the transmission or other drivetrain components. As the crankshaft rotates, the main journal turns the flywheel or …

As bearing surfaces, the main journals and the connecting rod journals of crankshafts are surface-hardened so that a longer wearing, more durable bearing metal can be used without causing …

Aug 1, 2013 · Each main journal of a crankshaft runs in line with each other. This is the portion of the crankshaft that bolts into the engine block by main caps, with bearings installed, and must run true.

The main journal is a section of the crankshaft that houses the main bearings, which support the crankshaft and allow it to rotate smoothly within the engine block.

Jun 11, 2025 · Crankshaft journals are the bearing surfaces on a crankshaft where the main bearings and connecting rod bearings ride. They are precision-machined to provide a smooth surface for the …