Bending of Beam Apparatus

Product Code : LSK-AM-11094

Bending of Beam Apparatus (SKU LSK-AM-11094) supports a one metre metal bar on knife edges and measures how far it sags under a central load, giving Young's modulus of the bar material. It is a standard elasticity practical in B.Sc. physics, engineering physics and polytechnic labs. Science Lab Supplies fabricates the apparatus at its Plot 448, HSIIDC Industrial Area site in Saha, Ambala, India, and offers it straight from the factory to colleges, schools, contractors and distributors.

Specifications

The metal bar, 100 cm long, 25 mm wide and 4.5 mm thick, rests on a stand with a knife-edge top. A sharp knife edge with hanger slides along the bar to apply the load, and a spherometer on a purpose-designed cast iron stand, fitted with electric contacts, measures the depression.

Applications and Experiments for the Bending of Beam Apparatus

The apparatus determines Young's modulus of a rectangular bar by measuring the depression at its centre for a series of loads on the hanger. Because the spherometer reads very small movements, the method suits the B.Sc. elasticity practical as well as engineering physics and diploma strength-of-materials classes.

• B.Sc. physics: Young's modulus of a bar by the bending (non-uniform bending) method.
• Plotting depression against load to check that the bar bends elastically.
• Diploma and engineering labs: introducing beam deflection before strength-of-materials testing.

Standard Scope of Supply

The set comprises the stand with knife-edge top, the 100 cm metal bar, the knife edge with hanger, and the spherometer on its cast iron stand with electric contacts. Weights can be included or left out, so say on your enquiry which option you want quoted.

Packing, MOQ and Lead Time

Request a quotation for one apparatus or for as many sets as your elasticity practical needs. The quotation shows packing, delivery time and price for that quantity, with or without weights, and any other physics lab equipment in India you are sourcing can be quoted on it as well.

Science Lab Supplies has an Importer-Exporter Code and can ship to buyers in the UAE, Saudi Arabia, Oman, the Philippines, Nepal and Bangladesh. Please reach us via the contact page, place items in the enquiry cart, or see the lab tender page for bulk procurement.

Frequently Asked Questions

What does the Bending of Beam Apparatus measure?
It measures Young's modulus of the bar material. Students load the hanger, read the central depression with the spherometer, and use the bar dimensions and the load-depression readings in the bending formula.

Why does the spherometer have electric contacts?
The contacts show the exact moment the spherometer tip touches the bar, so each reading of the depression is taken at the same contact point rather than judged by eye.

Are weights included?
The apparatus is available both with and without weights. Mention your choice when you enquire, and the quotation will list the option you selected for each set.

Is the apparatus made by Science Lab Supplies?
Yes, it is. Science Lab Supplies builds this apparatus in its own Saha, Ambala factory in India and quotes it as the manufacturer, not as a trading house.

Related Elasticity Apparatus

These four items extend a Young's modulus bench. They add a mirror-based bending method, a cantilever set-up, a separate spherometer and a mass set, letting a college lab compare methods for the same elastic constant, and they can all be listed on a single quotation with this apparatus.

• Bending of Beam Apparatus, Koenig's Method — brass beam with two tilting mirrors.
• Cantilever Apparatus — chrome-plated steel bar marked every 5 cm.
• Spherometer Three-leg base — stand-alone spherometer for small thickness readings.
• Laboratory Slotted Masses, 2.5 kg — mass set for loading.

Browse the full Applied Mechanics range or all physics lab equipment.

Last updated: 25 September 2026