Rotating Parts with Projections


  • Rotating (including in-running nip points)
  • Transverse
  • Reciprocating


  • Cutting
  • Punching
  • Shearing
  • Bending

A wide variety of mechanical motions and actions may present hazards to the operator. These can include the movement of rotating members, reciprocating arms, moving belts, meshing gears, cutting teeth, and any parts that impact or shear. These different types of hazardous mechanical motions and actions are basic in varying combinations to nearly all machines, and recognizing them is the first step toward protecting operators from the danger they present. Danger increases when projections are present like Screws, bolts, nicks, abrasions, etc.