Worm and Wheel Apparatus

Worm and Wheel Apparatus

Technical Description:

The permits investigations of the torques and the efficiency of the gear unit. The transmission ratio of the gear can be determined. Students learn the basic terminology of gearing in a simple manner: numbers of teeth; modulus; reference circle and axle base. The worm gear wheel and worm are ball bearing-mounted. The forces are generated by the sets of weights and can be quickly and easily varied. The model is intended for wall mounting. The well-structured instructional material sets out the fundamentals and provides a step-by-step guide through the experiments.

Specification:

1. Demonstration and student experimental unit on the set-up and principle of a worm gear
2. Bronze worm gear wheel

3. Steel worm
4. 2 Aluminium side drums
5. 2 sets of weights
6. Worm, worm gear wheel and pulleys ball bearing-mounted
7. Anodised aluminium base plate 

Technical Data:

Side drum diameter

– on worm shaft: d=40mm
– on worm gear wheel shaft: d=120mm

Worm drive

– axle base: 80mm
– transmission ratio: 30:1
– modulus: m=4mm
– number of gears: 1
– power transmission: 10

Weights on worm side

– 1x 50N
– 1x 20N
– 2x 10N
– 1x 10N (suspended with balance mass)

Weights on worm gear wheel

– 1x 5N
– 4x 2N
– 1x 1N
– 1x 0,5N
– 1x 0,5N (suspended)

Base plate

– LxWxH: 250x200x12mm