image tag: crankshaft, minimum size: 2k, image quantity: 4

3200x2133px

motor, piston, machine, close, metal, drive, technology
5724x3821px

transmission, drive, metal, stainless steel, connection, turn, technology
6016x4016px

transmission, drive, gear, metal, stainless steel, connection, turn
4608x3456px

steam locomotive, blowing axis, pivot, spoke wheel, drive, railway, drive shaft