Crony Brake Dynamometer Manufacturer,Supplier and Exporter in India
Product Code : EL-MOL-11957
Quick Answer: The Prony Brake Dynamometer (listed as Crony Brake Dynamometer) has two wooden blocks clamped together around a pulley fitted to a shaft on ball bearings. A lever bar with a weight hanger and a spring balance measure the load produced as the blocks are tightened with wing nuts and a spring.
Last updated: October 2026
Key Features
- Two wooden blocks clamped together with a pulley in the centre
- Pulley fitted to a shaft moving on ball bearings
- Lever bar on one block, with a weight hanger at the outer end
- Spring balance fitted to measure the load
- Blocks are tightened with wing nuts and a spring
Technical Specifications
| Specification | Value |
|---|---|
| Brake blocks | Two wooden blocks clamped together |
| Pulley | Fitted in the centre, on a shaft moving on ball bearings |
| Lever bar | Attached to one block, with weight hanger at the outer end |
| Load measurement | Spring balance |
| Tightening | Wing nuts and spring |
About This Product
A Prony brake is a simple absorption dynamometer used to measure the torque and power of a rotating shaft, for example in engineering labs studying engines and motors. Friction between the blocks and the pulley loads the shaft, and the load on the lever arm gives the braking torque. Power is then found from the torque and the shaft speed. Other mechanics apparatus in the range includes the Moments Disc Apparatus. Alongside supply within India, the Prony Brake Dynamometer, listed as Crony Brake Dynamometer is offered for export to Japan, Paraguay, South Africa, Zambia, Croatia and Tunisia.
Frequently Asked Questions
Q1. How is the load applied on the Prony Brake Dynamometer?
The two wooden blocks are tightened around the pulley with wing nuts and a spring.
Q2. How is the load measured?
A spring balance is fitted to measure the load, and a lever bar with a weight hanger is attached to one of the blocks.
Related: Mechanical Operational Lab, Moments Disc Apparatus, Friction Slide, Torsion Apparatus (Searle's Type).
For a quotation on the Prony Brake Dynamometer, listed as Crony Brake Dynamometer, contact School Lab Equipment India.