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Theory of Machines Products Manufacturer, Suppliers and Exporter in India

Educational Instrument is leading Theory of Machines Products Manufacturer,and supplier and Exporter in India, Algeria (Algiers), Angola (Luanda), Argentina (Buenos Aires), Armenia (Yerevan), Australia(Canberra), Austria (Vienna), Bahrain (Manama), Bangladesh (Dhaka), Bhutan (Thimphu), Bolivia (Sucre), Botswana (Gaborone), Brazil (Brasília), Brunei (Bandar Seri Begawan), Montenegro (Podgorica), Morocco (Rabat), Mozambique (Maputo), Myanmar (Naypyidaw), Namibia (Windhoek), Nepal (Kathmandu), New Zealand (Wellington), Nigeria (Abuja), Oman (Muscat), Palestine (Ramallah), Panama (Panama City), Papua New Guinea (Port Moresby), Paraguay (Asunción), Peru (Lima), Philippines (Manila)¸ Portugal (Lisbon), Qatar (Doha), Rwanda (Kigali), Saudi Arabia (Riyadh), Senegal (Dakar), Serbia (Belgrade), Sierra Leone (Freetown), Slovakia (Bratislava), South Africa (Cape Town) (Pretoria) (Bloemfontein), South Sudan (Juba), Spain (Madrid), Sri Lanka (Sri Jayawardenepura Kotte) (Colombo), Sudan (Khartoum), Syria (Damascus), Tanzania (Dodoma), Thailand (Bangkok), Togo (Lomé), Tonga (Nuku'alofa), Trinidad and Tobago (Port of Spain), Tunisia (Tunis), Turkey (Ankara), Turkmenistan (Ashgabat), Uganda (Kampala), United Arab Emirates (Abu Dhabi), United Kingdom (London), United States (Washington, D.C.)

Theory of machines products are laboratory apparatus for teaching machine dynamics — vibrations, rotation, balancing, cams, gears, bearings, and contact mechanics — through measured experiments. Mechanical engineering departments at universities, engineering colleges, polytechnics, and TVET institutes use them to connect classroom dynamics theory with observed machine behaviour, and research and industrial training facilities use them for demonstration and testing work. Educational Instrument manufactures and exports the 23-product range from Goregaon, Mumbai, India for institutional and tender supply worldwide.

The catalogue divides into three working groups: vibration apparatus (free, forced, and torsional vibration units, mass–spring and cantilever systems, damper kits, pendulums, whirling of shafts, and a dedicated test frame), rotational dynamics apparatus (governors, centrifugal force, Coriolis force, balancing of reciprocating masses, cam analysis, and geared systems), and bearing and contact apparatus (air bearing, journal bearing, Michell pad, and Hertzian contact units). Most units are bench-mounting; supply is quote-based.

What experiments can you run with theory of machines lab equipment?

This range supports measured experiments in simple harmonic motion, free and forced vibration, torsional vibration, damping, whirling of shafts, governor behaviour, centrifugal and Coriolis forces, balancing of reciprocating masses, cam profiles, gear drives, and bearing friction and lubrication. Each unit isolates one dynamics topic for a laboratory session.

Measurement is built into the apparatus rather than added afterwards. Examples from the product descriptions: the Governors unit uses a sensor to measure the lift of each governor sleeve; Free and Forced Vibrations has an accelerometer in the exciter assembly to show the phase relationship between beam displacement and acceleration; and the Air Bearing Apparatus pairs a hand-operated load control with a load cell so students apply and measure load on the bearing bush directly.

How is the vibration apparatus organised?

The vibration group is modular. A Free Vibrations Test Frame lets students, teachers, or lecturers fit experiment parts to study or demonstrate a free-vibrations topic, and the Universal Vibrations Apparatus offers experiments sized for accurate results on a classroom bench. Around these sit single-topic units and add-on kits.

The single-topic units cover the classical progression: Free Vibration of Mass Spring System (linking directly to simple harmonic motion, where restoring force is proportional to displacement), Free Vibrations of Cantilever (beam stiffness replacing spring stiffness), Free Vibration of Beam Spring (a pivoted beam suspended by a coiled spring — a system found in machines and vehicle suspensions), Free Torsional Vibrations (a rod fixed to a freely rotating rotor), and Simple and Compound Pendulums for period-of-oscillation studies. Two damper kits add damping studies: a dash-pot piston-and-cylinder kit for the mass–spring unit, and a Damper Kit that works with easily found non-toxic fluids for different damping levels. Whirling of Shafts and Critical Speed Apparatus completes the group.

Which units cover rotation, balancing, and machine elements?

Seven units cover rotational dynamics and machine elements. The Governors unit measures sleeve lift by sensor; Centrifugal Force and Angular Velocity uses a motor-driven belt and turntable; and the Coriolis Force Apparatus mounts a transparent water tank and counterbalance on a rotating arm over a benchtop base unit.

For balancing and mechanisms, Balance of Reciprocating Masses is a bench-mounting model four-cylinder engine showing primary and secondary forces and moments and how to balance them. The Cam Analysis Machine is built on a precision-machined heavy steel base with a high-torque, direct-drive, variable-speed motor. Geared Systems is supplied with a three-shaft gear drive unit as standard, with a base unit that dynamically tests the gear drive and optional drive units; a separate Acceleration and Static Test Stand adds experiments in angular acceleration and static efficiency. Centre of Percussion has students locate a compound pendulum's centre of gravity to calculate radius of gyration and centre of percussion.

What bearing and contact mechanics apparatus is included?

Four tribology-related units are included. The Air Bearing Apparatus applies and measures bearing-bush load via hand-operated load control and load cell. The Journal Bearing Demonstration is a floor-standing apparatus for studying journal bearing performance under different test conditions — the one unit in the range described as floor-standing rather than bench-format.

The Michell Pad Apparatus is a bench-mounting unit with an aluminium plate (pad) mounted above a continuous-loop flat belt, for tilting-pad lubrication studies. The Hertzian Contact Apparatus lets students rotate the lower pad while a pointer shows the angle of rotation, supporting contact-mechanics coursework. Full specifications for each unit are available on request.

Product types in this category

Product type

Key feature (as stated)

Typical use

Universal Vibrations Apparatus

Bench-sized experiments; demonstration-scale accuracy

Multi-topic vibration teaching

Free Vibrations Test Frame

Experiment parts fit to a common test frame

Platform for free-vibration topics

Free Vibration of Mass Spring System

Direct link to simple harmonic motion

SHM fundamentals

Free Vibrations of Cantilever

Beam stiffness replaces spring stiffness

Cantilever vibration studies

Free Vibration of Beam Spring

Pivoted beam suspended by coiled spring

Suspension-type system dynamics

Free Torsional Vibrations

Rod fixed to freely rotating rotor

Torsional oscillation experiments

Free and Forced Vibrations

Accelerometer in exciter shows displacement–acceleration phase

Forced vibration and resonance

Damper Kit

Uses easily found non-toxic fluids for damping levels

Damping studies

Damper Kit for Mass/Spring

Piston-disc dash-pot fits guide rods under platform

Damped SHM experiments

Simple and Compound Pendulums

Tests how mass and length affect SHM period

Pendulum oscillation studies

Centre of Percussion

Compound pendulum CG → radius of gyration

Rotational inertia coursework

Whirling of Shafts and Critical Speed Apparatus

Shaft whirl and critical speed unit

Critical speed experiments

Governors

Sensor measures each governor sleeve lift

Governor characteristic studies

Centrifugal Force and Angular Velocity

Motor-driven belt turns turntable under mechanism

Rotational force experiments

Coriolis Force Apparatus

Rotating arm with transparent water tank and counterbalance

Coriolis effect demonstration

Balance of Reciprocating Masses

Model four-cylinder engine; primary/secondary forces and moments

Balancing coursework

Cam Analysis Machine

Heavy steel base; high-torque direct-drive variable-speed motor

Cam profile analysis

Geared Systems

Three-shaft gear drive standard; base unit tests optional drives

Gear drive testing

Acceleration Static Test Stand

Adds angular acceleration and static efficiency experiments

Extension to geared systems work

Air Bearing Apparatus

Hand-operated load control with load cell

Air bearing load studies

Journal Bearing Demonstration

Floor-standing; performance under different test conditions

Journal bearing performance

Michell Pad Apparatus

Aluminium pad above continuous-loop flat belt

Tilting-pad lubrication studies

Hertzian Contact Apparatus

Rotatable lower pad with rotation-angle pointer

Contact mechanics experiments

Selection criteria

Criterion

What to check

Topic coverage

Which dynamics topics your syllabus examines by experiment — vibrations, balancing, cams, gears, bearings

Platform vs single units

Whether a test frame/universal apparatus plus modules, or standalone single-topic units, fits your course structure

Format and floor space

Most units are bench-mounting; the Journal Bearing Demonstration is floor-standing

Add-on kits

Damper kits and the Acceleration Static Test Stand extend base units — order together where relevant

Built-in measurement

Sensors, load cells, accelerometers, and indicators as stated per product page

Specifications

Detailed specs available on request through product enquiry

Procurement route

Quote, catalogue request, or institutional/tender supply via the Tenders/OEM page

Related categories

Frequently asked questions

What does the theory of machines product range include?

The range includes 23 units across three groups: vibration apparatus (mass–spring, cantilever, beam-spring, torsional, forced vibration, dampers, pendulums, whirling of shafts, test frame, universal apparatus), rotational dynamics apparatus (governors, centrifugal force, Coriolis force, reciprocating-mass balancing, cam analysis, geared systems, acceleration test stand, centre of percussion), and bearing/contact apparatus (air bearing, journal bearing, Michell pad, Hertzian contact).

Who makes and exports these theory of machines products?

Educational Instrument manufactures and exports them from its works at 750, Industrial Estate, Sonawala Cross Road No. 2, Goregaon, Mumbai, Maharashtra 400063, India. The company states it has been manufacturing educational laboratory equipment since 1957, serving 82+ countries via distributors and dealers (manufacturer-stated figures).

Do students take measurements, or are these demonstration models?

Students take measurements. Per the product descriptions, units include a load cell on the Air Bearing Apparatus, a sleeve-lift sensor on the Governors unit, an accelerometer in the Free and Forced Vibrations exciter assembly, and a rotation-angle pointer on the Hertzian Contact Apparatus — supporting quantitative lab work rather than observation only.

Which unit needs the most floor space?

The Journal Bearing Demonstration is described as floor-standing. Other units in the range are described in bench-mounting, benchtop, or classroom-bench formats — for example, the Universal Vibrations Apparatus is sized to fit on a classroom bench while remaining large enough for demonstrations.

Are there expansion options for existing units?

Yes, three are stated: the Damper Kit for Mass/Spring adds a dash-pot damper to the mass–spring unit, the general Damper Kit provides different damping levels using easily found non-toxic fluids, and the Acceleration and Static Test Stand adds angular acceleration and static efficiency experiments alongside the Geared Systems unit, which itself dynamically tests optional drive units.

How do I request pricing or tender support?

Pricing, specifications, and catalogues are provided on request — use the enquiry option on any product page, theContact Us page, or theTenders/OEM page for institutional procurement. Certifications listed on theAbout page are manufacturer-stated — verify before tender submission.

Request a Quote or Catalogue — share your dynamics lab experiment list or tender specification viaContact Us or theTenders/OEM page.

Air Bearing Apparatus

Air Bearing Apparatus

Product Code : EL-TOMP-11397

A hand-operated load control and load cell allow the user to apply and measure the load on the bearing bush.

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Governors

Governors

Product Code : EL-TOMP-11398

A sensor measures the position (lift) of each governor sleeve as it rises.

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Journal Bearing Demonstration

Journal Bearing Demonstration

Product Code : EL-TOMP-11399

This floor-standing apparatus allows students to study the performance of a journal bearing during different test conditions.

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Universal Vibrations Apparatus

Universal Vibrations Apparatus

Product Code : EL-TOMP-11400

All experiments are large enough for demonstrations and produce accurate results, yet small enough to fi t on a classroom bench.

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Damper Kit

Damper Kit

Product Code : EL-TOMP-11401

Works with easily found non-toxic fluids for different damping levels.

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Free Vibration of Beam Spring

Free Vibration of Beam Spring

Product Code : EL-TOMP-11402

This product includes a beam pivoted at one end, with the other end suspended by a coiled spring. This common system appears in machines and vehicle suspensions.

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Free Vibrations of Cantilever

Free Vibrations of Cantilever

Product Code : EL-TOMP-11403

A beam with the mass at the end works in a similar way to a mass spring system - the stiffness of the beam simply replaces the stiffness of the spring.

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Free Torsional Vibrations

Free Torsional Vibrations

Product Code : EL-TOMP-11404

The bottom of the rod fixes to a rotor that is free to rotate.

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Damper Kit For Mass/Spring

Damper Kit For Mass/Spring

Product Code : EL-TOMP-11405

This simple piston disc and cylinder form a dash-pot damper that fits to the guide rods under the platform.

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Free Vibration of Mass Spring System

Free Vibration of Mass Spring System

Product Code : EL-TOMP-11406

Students can easily make the link to simple harmonic motion - defined as the oscillatory motion where the restoring force is proportional to the displacement.

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Centre of Percussion

Centre of Percussion

Product Code : EL-TOMP-11407

Students find the centre of gravity of the wooden (compound) pendulum to calculate its radius of gyration and centre of percussion.

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Simple and Compound Pendulums

Simple and Compound Pendulums

Product Code : EL-TOMP-11408

Students test different pendulums to see how different factors, such as mass or pendulum length affect simple harmonic motion and the period of oscillation.

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Free Vibrations Test Frame

Free Vibrations Test Frame

Product Code : EL-TOMP-11410

Students, teachers or lecturers fit the parts of their free vibrations experiments to the Test Frame to study or demonstrate a free vibrations topic.

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Balance of Reciprocating Masses

Balance of Reciprocating Masses

Product Code : EL-TOMP-11411

A bench-mounting model four-cylinder engine that shows primary and secondary forces and moments in reciprocating masses and how to balance them.

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Hertzian Contact Apparatus

Hertzian Contact Apparatus

Product Code : EL-TOMP-11412

Students may rotate the lower pad, a pointer shows the angle of rotation.

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Cam Analysis Machine

Cam Analysis Machine

Product Code : EL-TOMP-11413

The main part of the product has a precision machined heavy steel base which holds a high-torque direct-drive variable-speed motor.

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Acceleration Static Test Stand

Acceleration Static Test Stand

Product Code : EL-TOMP-11414

A separate Acceleration and Static Test Stand gives extra experiments in measuring angular acceleration and static efficiency.

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Geared Systems

Geared Systems

Product Code : EL-TOMP-11415

Supplied with a three-shaft gear drive unit as standard, the base unit dynamically tests the gear drive and the other optional drive units.

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Free and Forced Vibrations

Free and Forced Vibrations

Product Code : EL-TOMP-11416

An accelerometer built into the exciter assembly works to show the phase relationship between beam displacement and acceleration.

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Centrifugal Force and Angular Velocity

Centrifugal Force and Angular Velocity

Product Code : EL-TOMP-11418

An electric motor turns a belt that turns a turntable under the mechanism.

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Whirling of Shafts and Critical Speed Apparatus

Whirling of Shafts and Critical Speed Apparatus

Product Code : EL-TOMP-11419

Whirling of Shafts and Critical Speed Apparatus

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Michell Pad Apparatus

Michell Pad Apparatus

Product Code : EL-TOMP-11420

The bench-mounting unit has an aluminium plate (pad) mounted above a continuous loop flat belt.

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Coriolis Force Apparatus

Coriolis Force Apparatus

Product Code : EL-TOMP-11421

A benchtop base unit supporting a rotating arm on which a transparent water tank and counterbalance are mounted.

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Office Address

Works:750, Industrial Estate, Sonawala Cross Road No.2,
Goregaon, Mumbai, Maharashtra 400063

[email protected]

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