Hand pointing at a tapered roller bearing on a driveline part be…

A greasy hand points at a tapered roller bearing pressed onto a machined driveline component lying on a concrete shop floor, with a scored, shiny wear surface and a puddle of dark gear oil beside it. A black splined bolt or stud rests on the rag next to the part.

AI caption October 2015 · Photo 229 of 1612