Two types of this part exist. Only type 1 allows inserting an axle in two different positions (refer to the second photo below). In other words, type 2 prevents inserting an axle in the 'wrong' position. Additionally type 2 has a bar-sized hole.
Click on a colored part below to see the Sets and MOCs that use part 2853 Technic Engine Crankshaft in that color. You can find an overview of all LEGO Colors here.
This part has been used by MOCs in the following colors but not officially released.