Efficiency Of Screw Threads- Engineering Lab Training Systems
 
						                        
							                            Model HV-EXP5735
														                           Features   	Low cost, effective teaching 	Self-contained 	Wall mounted 	Introduction to simple machines 	Determination of velocity ratio mechanical advantage and efficiency 	Comparative efficiency of square and 	Vee form threads 	Three year warranty   Range of Experiments   	Experimental determination of velocity ratio and comparison with calculated value 	Determination of variation with load of:  	 		 		effort 		friction 		efficiency 		 		 	 	 	Limiting efficiency of the machine 	Comparison of relative efficiency of Vee and Square thread forms   Description      This is a simple wall mounted apparatus supplied with three interchangeable  screw and nut assemblies. Load is applied to a weight hanger attached  directly to the screw and the effort torque is applied by a weighted  hanger and cord passing over a low friction ball bearing pulley.   This equipment is part of a range designed to both demonstrate and  experimentally confirm basic engineering principles. Great care has been given to each item so as to provide wide experimental scope without  unduly complicating or compromising the design. Each piece of apparatus  is self-contained and compact. Setting up time is minimal, and all  measurements are made with the simplest possible instrumentation, so  that the student involvement is purely with the engineering principles  being taught. A complete instruction manual is provided describing the  apparatus, its application, experimental procedure and typical test  results..						   

 
																				