Sankyo | Cam Terminology

Cam Terminology

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N	No-Dwell Motion, Rise- Return-Rise Motion	The reciprocating motion repeated from starting point to stopping point without any interruption while the stroke continues to accelerate at a given rate. Used to reduce the Am.
	Non-Dimensional Acceleration	Non-dimensional velocity differentiated by non-dimensional time. The maximum non-dimensional acceleration is expressed as Am. For high-speed driving applications, select the curve with the smallest Am.
	Non-Dimensional Displacement	The displacement of a motion from start to stop represented between 0 to 1. S = s/yh NOTE: S is the non-dimensional displacement, s is the real displacement (mm or rad), and yh is the maximum displacement (mm or rad).
	Non-Dimensional Jerk	Non-dimensional acceleration differentiated by non-dimensional time. Used to indicate the rate of change in acceleration. The maximum non-dimensional jerk is expressed as Jm.
	Non-Dimensional Time	The time of a motion from start to stop represented between 0 to 1. T = t/th NOTE: T is the non-dimensional time, t is the real time (s), and th is the time (s) up to the maximum displacement.
	Non-Dimensional Velocity	Non-dimensional displacement differentiated by non-dimensional time. The maximum non-dimensional velocity is expressed as Vm. When driving heavy loads, select the curve with the smallest Vm.
	Normal Direction	The vertical and perpendicular directions of a line at any given point on a plane or curve.
	Number of Stops	The number of stops the output shaft makes during intermittent (indexing) rotation. The output shaft rotates 360°/s between stops where s equals the number of stops.

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