It's solidbody high detail model of drive sprocket of T-34 tank
This model was designed in CAD (Solidworks) system and translated in other formats (attached: original Solidworks - Parasolid, STEP, PDF and Max as BodyObjects) . The model consists of 73 separated parts in 1:1 scale. Dimensions of model was taken from original drawings and real tank.
3d PDF for preview. You can view and interact 3d model.