RLES L Type Jaw Coupling

Product Overview

The RLES L Type Jaw Coupling is the industry-standard flexible coupling designed for reliable and efficient power transmission across a wide range of industrial applications. Known for its simple three-piece construction and robust performance, it provides excellent shock absorption, vibration damping, and misalignment accommodation without requiring lubrication.

Engineered with two metallic hubs and an elastomeric spider element, the L Type coupling ensures smooth torque transmission while protecting connected equipment from harmful loads and operational stresses.

Key Features & Benefits

  • Fail-Safe Design

    Ensures continued power transmission even in the unlikely event of spider failure, preventing sudden system shutdowns.

  • No Metal-to-Metal Contact

    Elastomeric element eliminates direct contact between hubs, reducing wear, noise, and maintenance requirements.

  • High Misalignment Capacity

    Accommodates angular and parallel misalignment, improving equipment life and reducing alignment precision requirements.

  • Maintenance-Free Operation

    No lubrication required, resulting in lower maintenance costs and simplified installation.

  • Shock & Vibration Absorption

    The flexible spider dampens torsional vibrations and absorbs shock loads, protecting critical components.

  • Resistant to Harsh Environments

    Performs reliably in conditions exposed to oil, dirt, moisture, grease, and chemicals.

  • Wide Range of Configurations

    Available in multiple sizes, bore combinations, and spider materials to suit diverse industrial requirements.

Construction & Working Principle

Two Metallic Hubs
Typically made from Aluminium or sintered iron or cast iron depending on size

Elastomeric Spider (Flex Element)
Available in materials like:
• NBR (Buna-N) – High damping, oil resistant
• Urethane – Higher torque capacity
• Hytrel® – High temperature & torque resistance

Working Mechanism
Torque is transmitted through the compression of the elastomeric spider between interlocking jaws of the hubs. This design allows flexibility while maintaining torsional stiffness and minimizing backlash.

Advantages Over Conventional Couplings
• Easy installation and replacement
• No lubrication or sealing required
• High reliability in general-purpose applications
• Large availability of standard sizes

Applications

Typical Applications
The L Type Jaw Coupling is widely used in:
• Pumps & compressors
• Fans & blowers
• Mixers & agitators
• Conveyors
• Electric motor drives

These couplings are ideal for light to medium duty applications requiring dependable performance with minimal maintenance.

Why Choose Lovejoy RLES L Type Jaw Couplings?

  • Proven global design with decades of industrial usage

  • High interchangeability and availability

  • Engineered for durability and operational efficiency

  • Trusted solution for OEMs and industrial applications

Unsure Which Coupling Is Right for You?

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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.