Your Trusted Partner for Couplings in Mechanical Power Transmission

Lovejoy India, a company of RINGFEDER Power Transmission, delivering high-performance coupling solutions for industry.

  • About Lovejoy

With decades of expertise, Rathi Transpower Pvt. Ltd.—part of Ringfeder Power Transmission India Pvt. Ltd.—designs and manufactures high-performance flexible couplings. Our ISO 9001-certified facility ensures precision, reliability, and continuous innovation, delivering a wide range of standard couplings through a global distribution network.

Our Products

Engineered for Performance

Precision couplings for testing, assembly, and motion systems that keep automotive manufacturing lines running smoothly.

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Jaw Flex
Couplings

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Gear Flex Couplings

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Grid Flex Couplings

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Tyre Flex Couplings

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Pin & Bush Couplings

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Disc / Laminae Couplings

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  • Industries

Powering Every Sector

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Machines & Plants

Precision shaft connections, locking assemblies, and damping systems for packaging machines, machine tools, printing presses, and a wide range of plant and machinery applications, combining longevity, torsional stiffness, and damping performance.

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Aviation & Aerospace

High-performance friction springs and damping elements engineered to withstand extreme loads, temperature differentials, and safety requirements in aerospace and aviation technology, from standard designs to customer-specific special solutions.

pROCESS

Process Technology

Coupling systems, locking assemblies, and damping solutions for separating, shredding, moulding, mixing, conveying, and refining processes, covering cement, steel, packaging, and a wide range of material processing industries.

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Drives

Precision couplings, locking assemblies, and shrink discs built to the highest standards of performance, reliability, and efficiency for drive technology applications, from standard catalogue solutions to application-specific special designs.

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Energy

Locking assemblies and coupling systems supporting conventional and regenerative energy applications, including solar panel production, hydro-electric turbines, photovoltaic tracking systems, steam power plants, and cogeneration units.

Water Treatment

Extraction

Robust shaft-hub connections, coupling systems, and damping elements engineered for the harshest raw material extraction environments — coal, ore, oil, gas, and beyond — delivering uninterrupted performance under extreme pressures, temperatures, and contamination.

Why Us

Reliability You Can Count On

Engineering Excellence

Engineered by Rathi Transpower Pvt. Ltd.

Manufactured with decades of precision engineering expertise.

Engineering Excellence

Wide Range of Industrial Coupling Solutions

Comprehensive portfolio covering every power transmission requirement.

Engineering Excellence

Proven Reliability Across Industries

Trusted by leading industries worldwide for consistent, long-term performance.

Engineering Excellence

Advanced Manufacturing & Quality Systems

ISO 9001-certified facility with rigorous quality and testing standards.

Engineering Excellence

Custom Engineering Support

Tailored coupling solutions to match specific application and performance goals.

Engineering Excellence

Nationwide and Global Application Support

Extensive distribution and support network across India and internationally.

Unsure Which Coupling Is Right for You?

Our team of experts is ready to assist you in selecting the perfect power transmission components for your specific applications.

Try Our Coupling Selection Tool
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  • FAQs
01

Which coupling is best for pump applications?

The best coupling for pump applications depends on power, speed, alignment requirements, and operating conditions. Jaw couplings, disc couplings, and gear couplings are commonly used in industrial pump systems.

02

How do I choose the right coupling size?

Coupling size is selected based on transmitted torque, motor power, operating speed, shaft diameter, service factor, and application requirements.

03

What is the difference between a flexible coupling and a rigid coupling?

Flexible couplings accommodate shaft misalignment and absorb vibration, while rigid couplings require precise shaft alignment and provide no flexibility.

04

Do gear couplings require lubrication?

Yes. Proper lubrication is essential for minimizing wear and extending the service life of gear couplings.

05

What are the benefits of jaw couplings?

Jaw couplings offer easy installation, vibration damping, shock absorption, and low maintenance with no lubrication required.

06

How can coupling life be increased?

Coupling life can be maximized by maintaining proper shaft alignment, following regular lubrication schedules, avoiding overload conditions, replacing worn components promptly, and conducting routine inspections.

07

Can Lovejoy India provide customized coupling solutions?

Yes. Customized couplings can be designed to meet specific torque, speed, shaft, and application requirements.