Vibration of Spiral Spring Apparatus
Product Code : EL-AMLE-10641
Vibration of Spiral Spring Apparatus (code EL-AMLE-10641) is a wall-mounted unit used to investigate the vibrations of a spiral spring and rotating mass system and to find its time period and frequency. The spiral spring has a stiffness of c=238 Nmm, a 10 × 1 mm cross-section and an effective length of approx. 800 mm, and is attached to an axis on ball bearings carrying 2 levers with 0.5 kg sliding weights and a 0 to 360° angle scale.
Get a quote: use the Add To Cart enquiry button below, or send your quantity and delivery location through the contact page.
Specifications
| Parameter | Detail |
|---|---|
| Use | Investigation of vibrations on a spiral spring-rotating mass system; time period and frequency |
| Axis | Mounted on ball bearings |
| Mounting | Wall mounting plate, anodised aluminium |
| Base plate | 200 × 250 mm (w × h) |
| Spiral spring | |
| Construction | Metallic strip wound around a rod |
| Stiffness | c=238 Nmm |
| Cross-section | 10 × 1 mm |
| Effective length | Approx. 800 mm |
| Inside radius | 10 mm |
| Outside radius | 50 mm |
| Angle measurement | |
| Scale | Integrated angle measuring scale on the axis, 0 to 360° |
| Resolution | 1° |
| Deflection reading | Initial deflection and swing read through the protractor scale |
| Levers and weights | |
| Levers | 2, stainless steel, 8 mm diameter, 154 mm long |
| Sliding weights | Stainless steel, 0.5 kg mass, 50 mm diameter |
| Arm radius | 36 to 150 mm for the rotating mass |
| Supply | |
| Product code | EL-AMLE-10641 |
| Manufacturer | Engineering Lab Equipment, Ambala, Haryana, India |
What Is the Vibration of Spiral Spring Apparatus Used For?
A spiral spring and the mass it carries form a torsional oscillator: twisting the spring stores energy, and when released the mass swings back and forth about the axis at a natural frequency set by the spring stiffness and the moment of inertia of the rotating parts. The student sets the sliding weights at a chosen arm radius, turns the levers to an initial deflection read on the angle scale and releases them, timing a number of oscillations to give the period and frequency. Moving the weights between 36 and 150 mm changes the moment of inertia, so the period can be compared with the value calculated from the spring stiffness.
What to Specify When Ordering
- Quantity — the number of spiral spring vibration units required.
Frequently Asked Questions
What are the spiral spring's specifications?
The spring has a stiffness of c=238 Nmm, a cross-section of 10 × 1 mm, an effective length of approx. 800 mm, and inside and outside radii of 10 mm and 50 mm.
How is the deflection read?
An integrated angle measuring scale mounted on the axis reads from 0 to 360° with a resolution of 1°, giving both the initial deflection and the swing of the levers.
What masses are fitted to the levers?
There are 2 stainless steel levers, 8 mm in diameter and 154 mm long, carrying stainless steel sliding weights of 0.5 kg mass and 50 mm diameter.
Can the moment of inertia of the rotating mass be changed?
Yes. The sliding weights can be positioned so that the arm radius of the rotating mass lies anywhere from 36 mm to 150 mm, which alters the period of vibration.
How is the apparatus mounted?
It is fixed by a wall mounting plate of anodised aluminium, with a base plate of 200 × 250 mm (w × h) and the axis running on ball bearings.
What is a spiral spring?
A spiral spring is formed by a metallic strip wound around a rod, so that turning the rod coils or uncoils the strip and produces a restoring torque on the axis.
OEM Manufacturer
The Vibration of Spiral Spring Apparatus is made by Engineering Lab Equipment (Engineering Labs Equipment Pvt Ltd) at its works at Plot No. 43, Industrial Park, Sector 2, Growth Center, Saha, District Ambala, Haryana, India. The company designs, makes and tests applied mechanics apparatus for statics, friction, machines and mechanisms for engineering colleges, polytechnics, technical training institutes and research laboratories in India and overseas, and can build equipment to an institution's own requirements. Tender and OEM enquiries are handled through the Tenders/OEM page.
Related Applied Mechanics Equipment
- Compound Pendulum — metallic rod pendulum with fitted metallic balls, pivoted at any point for period and frequency studies.
- Bifilar And Trifilar Apparatus — wall-mounted two-thread and three-thread pendulum for oscillation and moment of inertia experiments.
- Torsional Vibrational Apparatus — bench top torsion bar rig with up to 3 mass discs, speed-controlled exciter and oscillation sensors.
See the full Applied Mechanics Lab Equipment range or all Mechanical Engineering Lab Equipment.
Request a Quote
For this and other applied mechanics lab equipment, schools and colleges can contact Engineering Lab Equipment, a manufacturer, supplier and exporter based in Ambala, India. To ask for a quotation, send the number of spiral spring vibration units required and your delivery location through the contact page, or use the Add To Cart enquiry button on this page.
Last updated: October 2026
