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Handwheel Drive Unit
Handwheel Drive Unit (Product Code: SLE/PHY/186) is a hand-turned pulley drive used to power other units of an energy transfer kit, such as a dynamo, line shaft, flywheel or pump, in school physics lessons on energy conversion. Its 75 mm driving and output pulleys and 20 mm intermediate pulley give a step-up ratio of 3.75, on a 165 x 100 mm base. It is made by Jain Scientific Equipments Pvt Ltd (ScienceLab), an OEM manufacturer, at its own factory in Ambala, India.
Specifications
| Parameter | Detail |
|---|---|
| Kit | Unit of the Energy Transfer Kit (units available separately) |
| Driving pulley | 75 mm diameter |
| Output pulley | 75 mm diameter |
| Intermediate pulley | 20 mm diameter |
| Step-up ratio | 3.75 |
| Base size | 165 x 100 mm (common to all kit units) |
| Kit connections | 4 mm socket terminals on kit units where appropriate |
| Drives | Dynamo, line shafts, flywheels, pumps and similar units |
| Product code | SLE/PHY/186 |
| Manufacturer | Jain Scientific Equipments Pvt Ltd (ScienceLab) — OEM |
| Country of origin | India (made in Ambala, Haryana) |
What Is the Handwheel Drive Unit Used For?
Turning the handwheel converts a student's muscular work into rotational kinetic energy, and the pulley train steps the speed up by a ratio of 3.75 before passing it on. Coupled to a dynamo it shows kinetic energy becoming electrical energy; driving a flywheel it shows energy being stored as rotation; with a line shaft or pump it shows useful work being done. Every stage also loses some energy as heat and sound through friction, a useful discussion point.
Because all units of the Energy Transfer Kit share the same 165 x 100 mm base, they line up neatly on the bench and can be rearranged into different energy chains, making the set a flexible physics demonstration kit. Turn the handle at a steady speed, keep the pulley grooves clean, and line the unit up squarely with the unit it drives.
What to Specify When Ordering
- Which other Energy Transfer Kit units you need — dynamo, line shaft, flywheel or pump — since each is available separately.
- Number of handwheel units, for example one per energy chain or student group.
- Ask us to confirm what is included with each unit and how the units are linked.
OEM Manufacturer
Jain Scientific Equipments Private Limited, trading as ScienceLab, is the OEM (original equipment manufacturer) of this handwheel drive unit. It is produced at the company's own licensed factory at Saha, Ambala, Haryana, and supplied factory-direct to schools, colleges, institutions, dealers and importers in India and international markets.
Since every unit in the energy transfer range comes from the same maker, you can start with a few units and ask us later for matching additions. Company information is on the ScienceLab profile.
Related Physics Lab Equipment
These units and models extend energy-conversion lessons built around the handwheel:
- Line Shaft Unit — a line shaft of the kind the handwheel is designed to drive.
- Demonstration Dynamo Model — shows kinetic energy turning into electrical energy.
- Mini Motor Unit — demonstrates the reverse conversion, electrical to kinetic.
- Water Turbine with Dynamo Model — another energy-conversion demonstration for comparison.
Browse the full Physics Lab Equipment range.
Frequently Asked Questions
What is the step-up ratio of the Handwheel Drive Unit?
The Handwheel Drive 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 in diameter, so the drive runs faster than the handwheel is turned.
What can the Handwheel Drive Unit drive?
The Handwheel Drive Unit is designed for driving a dynamo, line shafts, flywheels, pumps and similar units of the Energy Transfer Kit, so students can follow energy from muscular effort to electrical, stored or useful mechanical energy.
Is the Handwheel Drive Unit sold on its own?
Yes. The Handwheel Drive Unit is one of several Energy Transfer Kit units that are available separately. You can order it alone or together with other units, and we will confirm the contents of each in the quotation.
What size base does the Handwheel Drive Unit have?
The Handwheel Drive Unit sits on a 165 x 100 mm base, the same base measurement used by all units of the Energy Transfer Kit, so the units line up neatly when set out on a bench.
Who manufactures the Handwheel Drive Unit?
The Handwheel Drive Unit is manufactured by Jain Scientific Equipments Pvt Ltd (ScienceLab) as the OEM, at its own licensed factory in Saha, Ambala, Haryana, India, and is supplied direct from the factory.
What should a quotation request for this unit include?
For the Handwheel Drive Unit, tell us how many units you need, which other Energy Transfer Kit units to add, and the delivery location in India or abroad, so we can prepare one complete quotation.
Request a Quote
Get a price for the Handwheel Drive Unit through the contact page or the enquiry cart. The quotation is prepared by the manufacturer itself and can cover the other energy transfer units you need.
Last updated: 24 September 2026
