What is another name for the connecting rod journal?

What is another name for the connecting rod journal?

• A. Main journal
• B. Wrist pin
• C. Crank pin
• D. Cam journal

Answer: (C)

The surface of the crankshaft that the connecting rod rides on is the crankpin, also called the rod journal. This is the bearing area offset from the crankshaft centerline that the connecting rod attaches to, transforming the piston's linear motion into rotation. The main journal is the bearing surface that supports the crankshaft in the engine block, not the connection point for the rod. The wrist pin is the piston pin that connects the piston to the rod, and the cam journal is a bearing surface on the camshaft. So, the connecting rod journal is the crankpin.

The surface of the crankshaft that the connecting rod rides on is the crankpin, also called the rod journal. This is the bearing area offset from the crankshaft centerline that the connecting rod attaches to, transforming the piston's linear motion into rotation. The main journal is the bearing surface that supports the crankshaft in the engine block, not the connection point for the rod. The wrist pin is the piston pin that connects the piston to the rod, and the cam journal is a bearing surface on the camshaft. So, the connecting rod journal is the crankpin.