Riveted vs Bonded Brake Shoes: Pros, Cons, and Key Differences Explained

Sarah Khan
Sarah Khan
5 min read

Review by: Sarah Khan
Maintenance Brakes

Introduction

Brake shoes are a crucial component of the braking system in vehicles, particularly in drum brake systems. They play a vital role in slowing down and stopping the vehicle by creating friction against the rotating brake drum.

Understanding the Fundamentals

Before we dive into the nitty-gritty details, let's establish a solid foundation by understanding the basics of brake shoes.

ComponentDescription
Brake ShoesThe components that press against the brake drum to create friction, slowing down or stopping the vehicle's wheels.
Riveted Brake ShoesFeature a woven lining material attached to the shoe using rivets.
Bonded Brake ShoesHave a lining material that is bonded or glued directly to the shoe surface.

Wear and Tear: An Ongoing Battle

One of the primary concerns when it comes to brake shoes is their susceptibility to wear and tear. Both riveted and bonded linings experience gradual wear due to the constant friction against the brake drum. However, there are distinct differences in how each type handles this wear.

Bonded Linings

  • Prone to delamination (separation of the lining material from the shoe)

  • Delamination can lead to reduced braking performance and potential safety hazards

Riveted Linings

  • Generally more resistant to delamination

  • Rivets provide a secure mechanical attachment between the lining and the shoe

  • Over time, rivets can become loose or corroded, causing noise and uneven wear

Heat Dissipation: A Crucial Factor

Braking generates a significant amount of heat, and how well this heat is dissipated can have a profound impact on the longevity and performance of the brake shoes.

Advantages of Riveted Linings:

  • Rivets act as heat sinks, helping to dissipate heat more effectively

  • Better heat dissipation leads to improved longevity and performance

Disadvantages of Bonded Linings:

  • Excessive heat buildup can lead to:

    • Cracking

    • Glazing

    • Complete separation of the lining from the shoe

Contamination: A Silent Threat

Oil or brake fluid leaks can be detrimental to both riveted and bonded brake shoes, as they can contaminate the friction material, leading to reduced braking performance.

However, bonded linings are generally more susceptible to contamination due to their porous nature. The lining material can absorb contaminants, compromising its ability to generate sufficient friction.

Installation Challenges

Proper installation is crucial for both riveted and bonded brake shoes to ensure optimal performance and longevity. Let's explore the installation challenges for each type.

Riveted Linings

  • Riveting process must be done correctly:

    • Start from the center and work outwards

    • Ensure even distribution of pressure

    • Prevent uneven wear

  • Chamfering (beveling) the lining edges is essential to prevent noise and uneven wear

Bonded Linings

  • Meticulous surface preparation is required

  • Adherence to the adhesive manufacturer's guidelines is crucial

  • Failure to follow instructions can result in:

    • Premature delamination

    • Improper bonding

    • Reduced braking performance

    • Potential safety issues

Repair and Replacement Procedures

When it comes to repairing or replacing brake shoes, the processes for riveted and bonded linings differ significantly.

Riveted ShoesBonded Shoes
Remove old rivets and lining material using a chisel or drillSpecialized tools and techniques required, such as heat application
Clean the shoe surface thoroughlyMeticulous surface preparation according to manufacturer's instructions
Install new woven lining material using a rivet toolApply new bonded lining material following adhesive guidelines
Chamfer (bevel) the lining edges to prevent noise and uneven wearChamfer the lining edges to ensure optimal performance

Cost Considerations

The cost of brake shoe replacement can vary depending on several factors, including:

  • Parts Cost

    • Riveted linings: $40 to $100 per axle

    • Bonded linings: $60 to $120 per axle (depending on quality and vehicle type)

  • Labor Cost

    • Professional labor costs: $120 to $200 per axle

    • DIY: Significantly reduced costs, but requires mechanical skills and proper tools

Cost FactorRiveted LiningsBonded Linings
Parts Cost$40 - $100 per axle$60 - $120 per axle
Labor Cost$120 - $200 per axle (professional)$120 - $200 per axle (professional)
DIY OptionReduced costs, requires skills and toolsReduced costs, requires skills and tools

Preventing Recurring Issues

Regular maintenance and timely replacement of worn brake shoes are crucial to preventing recurring issues and ensuring safe braking performance. Here are some key preventive measures:

  • Adhere to the manufacturer's recommended intervals or replace shoes when they reach the minimum lining thickness

  • Proper driving habits:

    • Avoid excessive braking

    • Avoid riding the brakes

  • Promptly repair any oil or brake fluid leaks to prevent contamination

  • Follow the vehicle manufacturer's recommendations for the appropriate lining material (riveted or bonded) for your specific application

Conclusion

In the world of automotive brakes, the choice between riveted and bonded brake shoes is a complex one, with each option offering its own advantages and drawbacks. As a mechanic, I've witnessed firsthand the impact of these choices on braking performance, safety, and overall vehicle maintenance.

While riveted linings generally offer better heat dissipation and resistance to delamination, bonded linings can provide superior braking performance when properly installed and maintained. Ultimately, the decision should be based on a thorough understanding of the vehicle's specific requirements, driving conditions, and the owner's maintenance preferences.

Regardless of the choice, regular inspections, timely replacements, and adherence to proper installation procedures are paramount to ensuring safe and reliable braking performance. By embracing best practices and staying informed, we can navigate the complexities of brake systems with confidence and expertise.

FAQs

What are the main advantages of riveted brake shoes?

Riveted brake shoes offer better heat dissipation and are generally more resistant to delamination or separation of the lining from the shoe. The rivets provide a secure mechanical attachment between the lining and shoe.

What are the key benefits of bonded brake shoes?

Bonded brake shoes can provide superior braking performance when properly installed and maintained. They also allow for a thicker lining material since there are no rivet holes.

Which type lasts longer - riveted or bonded?

There is no definitive answer, as longevity depends on various factors like driving conditions, maintenance, and installation quality. However, riveted shoes are often considered more durable overall.

Are bonded shoes more prone to contamination?

Yes, the porous nature of bonded lining materials makes them more susceptible to absorbing contaminants like oil or brake fluid, which can degrade braking performance.

What happens if brake shoes wear down too much?

Excessively worn brake shoes, whether riveted or bonded, can lead to reduced braking power, noise, vibration, and potential safety hazards like brake fade or lockup.

Can I replace just one brake shoe at a time?

No, brake shoes should always be replaced as a complete axle set (two shoes) to ensure even braking performance on both wheels.

Is special training required to install bonded brake shoes?

Yes, meticulous surface preparation and adherence to the adhesive manufacturer's guidelines are crucial for proper bonded shoe installation and longevity.

Do vehicle manufacturers have preferences?

Some vehicle manufacturers may recommend or prefer one type over the other based on their specific brake system designs and performance requirements.

Can I convert from riveted to bonded shoes or vice versa?

While possible, converting brake shoe types is generally not recommended as it may require modifications to the brake components and could impact braking performance.

How often should brake shoes be inspected?

Brake shoes should be inspected regularly, typically every 12,000 miles or annually, and replaced when they reach the minimum lining thickness specified by the manufacturer.

Sarah Khan
Sarah Khan

Sarah isn't your average gearhead. With a double major in Mechanical Engineering and Automotive Technology, she dived straight into the world of car repair. After 15 years of turning wrenches at dealerships and independent shops, Sarah joined MICDOT to share her expertise and passion for making cars run like new. Her in-depth knowledge and knack for explaining complex issues in simple terms make her a valuable asset to our team.

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