| 74 / | HD | MACHINE ELEMENT OR MECHANISM |
| 813 R | DF | ROTARY MEMBER OR SHAFT INDEXING, E.G., TOOL OR WORK TURRET {8} |
| 816 | DF | .~ Preselected indexed position {1} |
| 817 | ![]() | .~.~ Sequential {5} |
| 818 | DF | .~.~.~> Skip position |
| 819 | DF | .~.~.~> Held by torque |
| 820 | DF | .~.~.~> Geneva or multilated gear drive |
| 821 | DF | .~.~.~> Velocity control |
| 822 | DF | .~.~.~> Interlocked rotator and brake {1} |