Technology Education Centre
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Technology Education Centre |
 
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Gear; Crown and worm Pk/10 (TS0094) Crown gear and matching worm gear ratio 42:1 Gear: worm gear. set/10 (TS0211) Plastic worm gear, with a plastic bush to allow fitting to a motor. Provides a way of reducing motor speed when using gears. Gear 8 tooth x 10.5 mm diameter Pk/50 (TS0469) Flat plastic gear 8 tooth x 10.00 mm diameter. Look at the following web site to see examples of young students activities using gears. http://www.tki.org.nz/r/assessment/exemplars/sci/physical/pw_3a_e.php Gear 12 tooth x 13.75 mm diameter Pk/50 (TS0470) Flat plastic gear 12 tooth x 13.75 mm diameter. This gear has a 2mm centre hole and fits directly onto a 2mm shaft. Look at the following web site to see examples of young students activities using gears.http://www.tki.org.nz/r/assessment/exemplars/sci/physical/pw_3a_e.php Gear 15 tooth x 16.75 mm diameter. Pk/20 (TS0471) Flat plastic gear 15 tooth x 16.75 mm diameter.Look at the following web site to see examples of young students activities using gears.http://www.tki.org.nz/r/assessment/exemplars/sci/physical/pw_3a_e.php Gear 18 tooth x 19.75 mm diameter. Pk/20 (TS0472) Flat plastic gear 18 tooth x 19.75 mm diameter.Look at the following web site to see examples of young students activities using gears.http://www.tki.org.nz/r/assessment/exemplars/sci/physical/pw_3a_e.php Gear 30 tooth x 31.75 mm diameter. Pk/20 (TS0473) Flat plastic gear 30 tooth x 31.75 mm diameter.Look at the following web site to see examples of young students activities using gears. http://www.tki.org.nz/r/assessment/exemplars/sci/physical/pw_3a_e.php Gear 38 tooth x 39.75 mm diameter. Pk/20 (TS0474) Flat plastic gear 38 tooth x 39.75 mm diameter.Look at the following web site to see examples of young students activities using gears.http://www.tki.org.nz/r/assessment/exemplars/sci/physical/pw_3a_e.php Gear 45 tooth x 46.75 mm diameter. Pk/20 (TS0475) Flat plastic gear 45 tooth x 46.75 mm diameter.Look at the following web site to see examples of young students activities using gears.http://www.tki.org.nz/r/assessment/exemplars/sci/physical/pw_3a_e.php Gear 58 tooth x 59.75 mm diameter. Pk/20 (TS0476) Flat plastic gear 58 tooth x 59.75 mm diameter.Look at the following web site to see examples of young students activities using gears.http://www.tki.org.nz/r/assessment/exemplars/sci/physical/pw_3a_e.php
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