ES17 ROTATIONAL FRICTION KIT Educational Equipment Mechanical Training Equipment
ROTATIONAL FRICTION KIT This kit includes a screw jack (or ‘jackscrew’), a wedge and different bearings. It helps students understand how rotational friction affects the efficiency of popular machine elements and bearing materials. It shows why engineers choose some materials and devices above others for any given application. Students fit the parts to the Work Panel and apply effort and load weights to find their relative mechanical advantage and efficiency. The kit introduces students to key engineering terms such as: • Mechanical advantage • Velocity ratio • Efficiency • ‘Overhaul’ This versatile kit is part of a series that allows many experiments using different arrangements of their parts. Students, teachers or lecturers fit the parts of the kit to the Work Panel (ES1)(supplied separately) to study or show an engineering science topic. Supplies a CD-ROM with the Work Panel (ES1). It includes all the worksheets, guidance notes and lecturer notes (with answers) needed for typical experiments with each kit. The selection of parts in the kits and the choice of fixing points on the Work Panel means that teachers or lecturers may extend the experiments to an even greater range. LEARNING OUTCOMES • Efficiency of a screw jack • Efficiency of a wedge • Efficiency of different bearings
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