Crank web

As crank webs flat design crank arms of crankshafts referred. The flat "cheek" design of the crank arm results for reasons of strength when the crank arm cannot be designed as a thick rod or lever due to lack of space .

Crankshaft webs are firmly connected to the rotating crankshaft at one “end”, while the connecting rod journal or connecting rod shaft on which the connecting rod is rotatably mounted is located at the other end .

Examples of multiple crank webs

Crankshaft with pistons and connecting rods . The black colored parts are the crank webs.

Crank webs on a ship's engine crankshaft

Examples of individual crank webs

Crank web with connecting rod. The side opposite the connecting rod pin (at the very top, covered) is particularly designed as a counterweight to avoid imbalance .

The red colored part of this steam engine system is the crank arm. Because of the low speed, the crank web is designed without a counterweight and the flywheel connected to the crankshaft is larger. (clearly visible on the edge)

Individual evidence

1. ↑ Document: ws-technik.info: The crank drive ( Memento from August 1, 2016 in the Internet Archive )