Disk for the Balance of Moments
Product Code : SCL-PL-11807
Disk for the Balance of Moments (SKU SCL-PL-11807) is a vertical, freely turning disk on which loads are hung at different radii to test the conditions for rotational equilibrium. Because loads can be placed at almost any point, it shows the principle of moments with several loads acting at different radii at once. Science Lab Supplies produces the disk at its Plot 448 factory in the HSIIDC Industrial Area, Saha, Ambala, India, supplying schools, colleges, tender contractors and distributors first-hand.
Specifications
A well-balanced, machined aluminium disc of not less than 245 mm diameter turns on a ball bearing about its axis and is clamped in a vertical plane on a tripod stand with a triangular base. Holes are set symmetrically in concentric circles, and four pins carrying scale pans fit into any hole.
| Parameter | Value |
|---|---|
| SKU | SCL-PL-11807 |
| Disk | Machined aluminium, not less than 245 mm diameter |
| Bearing | Ball bearing, disc in vertical plane |
| Holes | Symmetrical, in concentric circles |
| Load points | 4 pins carrying scale pans |
| Stand | Tripod stand with triangular base |
| Masses | Box of 10 masses with hooks (50 g / 100 g) |
| Manufacturer | Science Lab Supplies, Saha, Ambala, Haryana |
| Country of origin | India |
Applications and Experiments for the Disk for the Balance of Moments
The disk is used to verify that a body free to rotate stays at rest when the sum of clockwise moments equals the sum of anticlockwise moments. Loads at several radii make it a clear extension of simple lever work in school physics and in college mechanics practicals.
- ICSE Class 10 physics: principle of moments with several forces.
- NCERT Class 11 physics (System of Particles and Rotational Motion): torque and rotational equilibrium.
- Showing that a load's moment depends on its perpendicular distance from the axis, not only its radius.
- Polytechnic applied mechanics: equilibrium of coplanar forces.
Standard Scope of Supply
A set comprises the machined aluminium disc on its ball bearing, the tripod stand with triangular base, a base for balancing the device, four pins with scale pans, and a box of ten hooked masses. Anything extra you request is listed separately on your quotation.
Packing, MOQ and Lead Time
You are welcome to ask for a single disk or a full class quantity; the quotation sets out packing, delivery time and price for exactly what you request. It can also carry other school physics lab equipment in India from this range.
Using its Importer-Exporter Code, Science Lab Supplies can ship to buyers in Qatar, Sri Lanka, Vietnam, Malaysia, Peru and Egypt. Enquiries are welcome through the contact page and the enquiry cart, while tender details are on the lab tender page.
Frequently Asked Questions
What does the disk for the balance of moments show?
It shows that a disk free to turn stays balanced when the clockwise and anticlockwise moments of all the loads are equal, using pins and scale pans placed at different radii.
What is the disk made of?
The disc is machined aluminium, at least 245 mm in diameter, and turns on a ball bearing in a vertical plane.
Is Science Lab Supplies the manufacturer or a trader?
Science Lab Supplies is the manufacturer, making the disk and stand at its own works in Saha, Ambala, India; quotations are prepared there without any agent.
How many load points does it have?
Four pins carrying scale pans are supplied, and each can be inserted into any hole of the concentric circles on the disc.
Related Moments and Force Apparatus
The balance of moments ties together levers, turning forces and force measurement. These four items from the Physics Lab range support those neighbouring practicals and can be added to the same quotation as the disk for a complete statics bench.
- Apparatus for Demonstrating the Moment of Force — 245 mm fixed disk with 1 N and 2 N dynamometers.
- Demonstration Lever Balance — lever balance for class demonstrations.
- Force Table — combining forces in equilibrium.
- Set of Dynamometers — dual-scale spring balances.
Browse the full Physics Lab range or all physics lab equipment.
Last updated: 25 September 2026
