L-Type Flexible Jaw Coupling with NBR Rubber Element

Product Overview

The L-type flexible jaw coupling is designed for industrial power transmission systems that require a compact, economical and easy-to-maintain shaft connection. It consists of two coupling hubs and an intermediate NBR rubber element that helps transmit torque while cushioning vibration and absorbing transmission shocks.

Available in the L035–L276 size series, this flexible jaw coupling is suitable for selected motor-driven machines, industrial equipment and transmission systems operating under compatible torque and speed conditions.

Apex Coupling supports standard sizes and OEM customization. Different dimensions and material options can be reviewed according to the application and technical requirements.

Key Features

• Flexible jaw coupling design: Connects two shafts while allowing limited misalignment within the rated operating limits.

• NBR rubber element: Provides elastic cushioning and vibration damping, with good oil resistance under compatible conditions.

• Compact construction: Suitable for installations where radial space is limited.

• Easy installation and disassembly: Simplifies assembly, inspection and replacement of the elastic element.

• Low-maintenance design: Does not require routine lubrication of the elastic element under normal specified operating conditions.

• Multiple sizes: L035–L276 series options, subject to model availability.

• OEM customization: Custom dimensions and material options can be discussed for specific applications.

• Industrial versatility: Suitable for selected medium-speed, medium-torque drive systems.

Technical Specifications

Rated torque, maximum speed, bore sizes, dimensions and allowable misalignment vary by model. Please consult the relevant technical drawing before selecting a coupling.

How Does an L-Type Flexible Jaw Coupling Work?

An L-type flexible jaw coupling connects two shafts using mating jaws and an intermediate rubber element. The rubber element transfers torque between the hubs while cushioning vibration and accommodating limited shaft misalignment.

Compared with a rigid shaft connection, this flexible design can help reduce the transmission of some mechanical shocks. Actual damping performance depends on the rubber compound, coupling size, transmitted torque and operating conditions.

The coupling should be selected according to the required torque, rotational speed, shaft dimensions and alignment accuracy.

NBR Rubber Element

The intermediate NBR rubber element is an important part of the coupling’s performance. NBR is commonly used where oil resistance and elastic cushioning are required.

When choosing an NBR element, consider:

• Operating temperature and temperature fluctuations

• Exposure to oil, grease or other chemicals

• Required torque and starting loads

• Vibration and shock conditions

• Compatibility with the selected coupling size

The listed temperature range should be confirmed against the specific NBR compound and operating conditions. A replacement element must match the coupling’s dimensions and design.

Available Sizes and Customization

The L-type flexible jaw coupling is offered in a range of sizes, including the L035–L276 series listed for this product.

For accurate selection, please provide:

• Required coupling model or outside diameter

• Driving-side and driven-side bore diameters

• Keyway or other shaft connection requirements

• Required torque and operating speed

• Installation space and overall length

• Operating environment and temperature

Apex Coupling can review drawings and discuss customized dimensions or material options where technically feasible.

Typical Applications

Depending on the selected size and operating conditions, L-type flexible jaw couplings can be considered for:

• Industrial electric motor drives

• Wave soldering machines

• Lifting platforms

• General-purpose industrial machinery

• Medium-speed transmission systems

• Equipment requiring convenient installation and maintenance

Always confirm that the coupling’s torque rating, speed limit and alignment capacity meet the requirements of the actual application.

How to Select the Right L-Type Coupling

Before ordering, check the following points:

1. Torque: Determine the normal operating torque and account for starting and shock loads.

2. Speed: Confirm the required operating RPM against the selected model’s speed limit.

3. Bore size: Specify both shaft diameters and any keyway requirements.

4. Elastic element: Verify the NBR element’s dimensions and compatibility with the operating environment.

5. Alignment: Check expected radial, angular and axial misalignment.

6. Installation space: Confirm the outside diameter, overall length and available clearance.

7. Material and finish: Specify any requirements for the coupling hubs and surface treatment.

OEM L-Type Flexible Jaw Coupling Supplier

Apex Coupling supplies flexible jaw couplings for industrial transmission applications. Standard size options and customized requirements can be reviewed based on your technical drawings and operating conditions.

Contact us with your model, shaft dimensions and application details to request a quotation.

Email: ella@apexcoupling.com
WhatsApp: +86 13437856962

Frequently Asked Questions

What is an L-type flexible jaw coupling?

It is a flexible shaft coupling that uses mating jaws and an intermediate elastic element to transmit torque while cushioning vibration and accommodating limited misalignment.

What is the function of the NBR rubber element?

The NBR element transfers torque between the hubs and provides elastic cushioning. Its suitability depends on temperature, chemical exposure, torque and the rubber compound.

Does an L-type coupling require lubrication?

The coupling’s elastic element generally does not require routine lubrication. Follow the manufacturer’s instructions for the selected model and inspect the element periodically.

Can I order a customized L-type coupling?

OEM customization may be available for dimensions and material options. Provide the required shaft bores, torque, speed and technical drawing for review.

How do I choose the correct L035–L276 size?

Select the size according to torque, operating speed, bore diameters, alignment requirements and installation dimensions. Confirm the final selection against the model-specific technical data.