About the Crankshaft

The crankshaft, commonly called the "crank," is arguably the most important part of the engine. It's located towards the lower end, and is positioned horizontally. Its rotation governs essential parts, such as the water and oil pumps, the pistons, and the camshaft(s). The timing gears, more often a belt or chain, are what connect and synchronize the camshaft and crank. This is an essential connection because without the unison between the camshaft and the crankshaft, the engine wouldn't be capable of running. This is why there is often a timing cover protecting the belt, chain, or gears from debris and gravel. The functioning of the main parts are connected and unified at the crankshaft. At either end of the crankshaft, there are main bearing shells, which allow it to rotate staunchly in place.

JCB Crankshafts

We do not currently have any JCB crankshafts listed in our directory. We are in the process of collating information on JCB engines and their parts (March 2017) and ant crankshafts will be listed here when those parts are added. Please contact us for any part that you need.

Further Information

You can find more information about JCB engines on the following pages of our site:

• Parts Selection: JCB Engines
  A selection from our online parts database, of all complete engines and short engines that it contains.
• Parts Directory: Engines Category
  The engine parts section of our online parts database, featuring all engine parts that are currently listed.
• Parts Compendium: Engines
  The engines section of our parts compendium, which you are currently browsing, includes many other pages that may be of interest.

Update History

This entry has been updated as follows:

• 24 March 2017
  Initial entry with general information about the crankshaft
• 27 May 2017
  Added "Further Information" section detailing where on the site other information about JCB engines can be found