Pulley (Product Code: SCL1217/07) is a single 40 mm polypropylene wheel with a peripheral groove, turning on its rotation axis inside an aluminium frame that carries hooks on two sides. One hook lets it hang from a support as a fixed pulley; the other takes a load or a second pulley, so the same unit can be used fixed or movable. Made by Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala, it is the basic building block for any pulley system lab in India, from middle school to junior college.
| Parameter | Detail |
|---|---|
| Type | Peripheral groove wheel on support |
| Wheel material | Polypropylene |
| Frame | Aluminium |
| Wheel diameter | 40 mm |
| Wheel thickness | 5 mm |
| Rotation | Turns on a rotation axis |
| Fittings | Hooks on two sides |
Hung from a stand as a fixed pulley, it shows that a pulley changes the direction of a force: students pull down on a string passing over the groove to raise a mass, and a spring balance reveals that the effort is close to the load. Used as a movable pulley, with the load on the lower hook and one end of the string anchored, the effort needed falls to roughly half the load while the string travels twice as far. Several units combined give a block and tackle, from which a class calculates mechanical advantage, velocity ratio and efficiency.
For consistent results, use light, non-stretch string that runs cleanly in the groove, check that the wheel spins freely before each trial, and include the weight of the pulley itself when working out a movable arrangement. These are the classic force and simple-machine practicals found in school physics lab equipment in India.
This pulley comes from Jain Scientific Equipments Private Limited, which operates as ScienceLab from Ambala in Haryana and produces mechanics apparatus for classrooms and training institutes in India and international markets. The ScienceLab profile gives an overview of the company.
Items that complete a pulley and simple-machines practical:
For more mechanics items, visit our Lab Equipment category.
Can it be used as both a fixed and a movable pulley?
Yes. With hooks on two sides, it can hang from a support as a fixed pulley or carry the load as a movable one.
What size is the wheel?
The polypropylene wheel is 40 mm in diameter and 5 mm thick, with a peripheral groove for the string, and it is mounted in an aluminium frame.
Are string and masses included?
They are not listed in the specification. Masses and a force meter can be ordered with it, and any light, strong cord will run in the groove.
What load can it carry?
A load rating is not specified for this item. For heavier or unusual loads, please ask us through the contact page before use.
How do I keep it running smoothly?
Keep the axis free of dust and grit, avoid dropping the frame, and store it on a hook or in a tray rather than loose under heavier apparatus.
Can you supply pulleys in class quantities?
Yes, we quote bulk quantities for schools, colleges and distributors in India and international markets. Include the code SCL1217/07 and the number required.
Send your Pulley requirement through the contact page, or add it to the enquiry cart together with stands and masses for a single combined quotation.
Last updated: 24 September 2026