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Hand-Wheel Driving Unit
Hand-Wheel Driving Unit (Product Code: SCI-1527/012) is a hand-turned pulley drive used to power dynamos, line shafts, flywheels and pumps in physics and engineering demonstrations. Its 75 mm driving and output pulleys work with a 20 mm intermediate pulley to give a step-up ratio of 3.75 on a 165 x 165 mm base, a compact pulley system for lab demonstrations. It is made by Jain Scientific Equipments Pvt Ltd (ScienceLab), an OEM manufacturer, at its own factory in Ambala, India.
Specifications
| Parameter | Detail |
|---|---|
| Application | Driving dynamos, line shafts, flywheels and pumps |
| Driving pulley diameter | 75 mm |
| Output pulley diameter | 75 mm |
| Intermediate pulley diameter | 20 mm |
| Step-up ratio | 3.75 |
| Base dimensions | 165 x 165 mm |
| Operation | Turned by hand wheel |
| Product code | SCI-1527/012 |
| Manufacturer | Jain Scientific Equipments Pvt Ltd (ScienceLab) — OEM |
| Country of origin | India (made in Ambala, Haryana) |
What Is the Hand-Wheel Driving Unit Used For?
The unit lets students supply mechanical energy by hand and watch it drive other apparatus. Belted to a small dynamo, it turns the armature fast enough to light a lamp or deflect a meter, showing mechanical energy becoming electrical energy. Connected to a line shaft, flywheel or model pump, it demonstrates how power is transmitted by belts and pulleys and how a spinning flywheel stores energy, and it also drives eddy current demonstrations in which a spinning disc is slowed by magnets.
The pulley ratio is a lesson in itself: the 75 mm pulley driving the 20 mm pulley makes the smaller one turn 3.75 times for every turn of the larger, so students can relate diameters to speed. Hold or clamp the base firmly on the bench, keep belts properly tensioned, and turn the hand wheel smoothly rather than in jerks. Used with a dynamo, it makes a hands-on physics demonstration kit for energy conversion topics.
What to Specify When Ordering
- The quantity, for example one per demonstration bench or student group.
- Which apparatus it will drive (dynamo, eddy current unit, flywheel or pump) so matching items can be quoted together.
- Whether drive belts are needed, as belts are not mentioned in the listing.
OEM Manufacturer
ScienceLab is the trading name of Jain Scientific Equipments Private Limited, the OEM (original equipment manufacturer) of the Hand-Wheel Driving Unit. The unit is made and assembled at the company's own licensed factory at Saha, Ambala, Haryana, India, and supplied factory-direct to schools, colleges, polytechnics, dealers and importers. When you need matching apparatus or replacement parts later, you are dealing with the maker itself — ask us. See the ScienceLab company profile for background.
Related Laboratory Equipment
Apparatus that is driven by, or studied alongside, the Hand-Wheel Driving Unit:
- Eddy Current Unit 120 mm — the aluminium-disc eddy current demonstration designed to be driven by this unit.
- Demonstration Dynamo Model — shows electricity generation when turned.
- Large Motor/Generator — a motor that can also be used as a dynamo in energy experiments.
- Pulley Demonstration Set — for exploring pulley ratios and mechanical advantage further.
Find more physics and bench apparatus in the Laboratory Equipment category.
Frequently Asked Questions
What can the Hand-Wheel Driving Unit drive?
The Hand-Wheel Driving Unit is designed for driving dynamos, line shafts, flywheels and pumps in classroom demonstrations. It is also used to spin the aluminium disc of ScienceLab's eddy current unit when demonstrating eddy currents.
What is the step-up ratio of the Hand-Wheel Driving Unit?
The Hand-Wheel Driving Unit has a step-up ratio of 3.75. Its driving and output pulleys are both 75 mm in diameter and the intermediate pulley is 20 mm, so the smaller pulley turns 3.75 times faster than the larger one.
How large is the base of the Hand-Wheel Driving Unit?
The base of the Hand-Wheel Driving Unit measures 165 x 165 mm. This compact footprint fits on a standard demonstration bench beside the dynamo, flywheel or other apparatus it is driving.
Are drive belts included with the Hand-Wheel Driving Unit?
The listing for the Hand-Wheel Driving Unit does not mention drive belts. Tell us which apparatus you will connect it to when you enquire, and we will confirm what is needed for the set-up.
Who manufactures the Hand-Wheel Driving Unit?
The Hand-Wheel Driving Unit is manufactured by Jain Scientific Equipments Pvt Ltd (ScienceLab), the OEM, at its own licensed factory at Saha, Ambala, Haryana, India. Quotations and repeat orders come directly from the manufacturer.
Can the Hand-Wheel Driving Unit be supplied in bulk or for export?
Yes. ScienceLab supplies the Hand-Wheel Driving Unit factory-direct in bulk to schools, colleges, institutions, dealers and importers in India and international markets. Send the product code SCI-1527/012, the quantity and the destination for a quotation.
Request a Quote
Request a quotation for the Hand-Wheel Driving Unit (SCI-1527/012) via the contact page or the enquiry cart, listing any apparatus you want it to drive. The quotation comes directly from the manufacturer.
Last updated: 24 September 2026
