Black multi-groove crankshaft pulleys stacked on a bench with a…

Two black multi-groove V-belt crank pulleys stacked face-up on a white surface, the top one showing its four bolt holes, center bore and worn hub face with a Krylon paint-marker pen laid across it for scale. A boxed replacement belt sits in the lower left corner.

AI caption July 2014 · Photo 195 of 359