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Gear Train

Gear Train .

Descreiption of Gear Train

This compact bench top unit allows investigations into transmission ratio and velocity ratio for simple, compound and planetary Gear Train. A solid base mounts an epicyclic arm, which is free to rotate about a fixed pivot point on bearings. Onto this arm are mounted durable plastic gears.

Spur gears of 40, 60, 80 and 100 teeth are provided, with a module of 1. Pins mount the gears in position and they are easy to remove and fit. Gear mesh is precise and allows easy rotation of each gear. The gears can be arranged in simple, compound or planetary Gear Train. The compound gear train requires two gears to be interlocked via pins. All gears within the apparatus can be locked together to form two gear compounds.

Experimental Capabilities of Gear Train

To show that for a single spur Gear Train, the ratio of the speeds of the driver and driven wheels are inversely proportional to the ratio of the number of teeth
To verify that intermediate gears have no effect on the velocity ratio
To establish the sense of rotation of a gear train with one or more intermediate wheels
To verify that for a compound gear train the velocity ratio depends on the ratio of teeth on the intermediate wheel
To investigate the velocity ratio of epicyclic Gear Train

Specification of Gear Train

4 spur gears
40, 60, 80 and 100 tooth gears
Durable plastic gears with module of 1
Interlocking gears for compound gear train work
Mounting stud for gear and spacer storage

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