RRL Series Jaw Coupling

Product Overview

The RRL Series Jaw Coupling is a robust and versatile flexible coupling designed to deliver reliable torque transmission with enhanced shaft connection options. It is widely used in industrial applications where secure shaft locking, ease of installation, and dependable performance are critical.

Key Features & Benefits

  • No Metal-to-Metal Contact

    The elastomeric spider eliminates direct hub interaction, reducing wear, noise, and extending service life.

  • High Misalignment Capability

    Accommodates angular and parallel misalignment, reducing stress on shafts, bearings, and connected equipment.

  • Maintenance-Free Operation

    No lubrication required, resulting in lower operating and maintenance costs.

  • Shock & Vibration Damping

    Absorbs dynamic loads and reduces torsional vibrations, improving system stability and equipment life.

  • Easy Installation & Removal

    Special hub design enables quick mounting and dismantling, minimizing downtime during maintenance.

  • Compact & Reliable Construction

    Designed for space-efficient installations while delivering consistent and durable performance.

Construction & Working Principle

Components:
Specialized Metallic Hubs (RRL Type)
Manufactured from high-quality cast iron for maximum durability and strength.

Elastomeric Spider (Flex Element)
• NBR (Buna-N) – General purpose with excellent damping and shock absorption.

Working Principle:
Torque is transmitted through the compression of the elastomeric spider between the jaws of the two hubs. The specialized hub design ensures a firm shaft connection, while the flexible element absorbs shocks and accommodates misalignment for smooth power transmission.

Advantages
• Reduced risk of fretting and shaft damage
• Easy installation without complex tools
• High reliability in continuous industrial operation
• Interchangeable with standard jaw coupling profiles (where applicable)

Applications

Typical Applications
RRL Series Jaw Couplings are widely used in:
• Electric motor and gearbox connections
• Pumps and compressors
• Fans and blowers
• Conveyors and material handling equipment
• Mixers and processing machinery

These couplings are ideal for applications requiring secure shaft mounting with flexible power transmission.

Optional Variants & Customization
• Spacer versions for extended shaft distance
• Custom bore and keyway options as per DIN / ISO standards
• Surface coatings for corrosion resistance

Why Choose RRL Series Jaw Coupling?

  • Reduces installation time and maintenance effort

  • Enhances operational safety and reliability

  • Suitable for a wide range of industrial applications

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  • FAQs
01

What makes Rathi couplings stand out from others in the market?

Yes. Our couplings are engineered to handle demanding torque and speed requirements with minimal vibration and backlash, ensuring smooth and reliable power transmission under extreme conditions.

02

Do Rathi couplings support high-speed or high-torque applications?

Yes. Our couplings are engineered to handle demanding torque and speed requirements with minimal vibration and backlash, ensuring smooth and reliable power transmission under extreme conditions.

03

Can Rathi provide custom coupling solutions?

Yes. Our couplings are engineered to handle demanding torque and speed requirements with minimal vibration and backlash, ensuring smooth and reliable power transmission under extreme conditions.

04

How does Rathi ensure product quality and reliability?

Yes. Our couplings are engineered to handle demanding torque and speed requirements with minimal vibration and backlash, ensuring smooth and reliable power transmission under extreme conditions.