03/11/2017
When it comes to vehicle safety, few components are as critical as the braking system. It’s not just about slowing down or stopping; it’s about control, reliability, and peace of mind on the road. For commercial vehicles and Light Commercial Vehicles (LCVs), where loads are heavy and demands are high, the quality of every braking component is paramount. This article delves into the world of high-performance braking, focusing on the quality assurance behind Juratek brake pads and the innovative technologies that define modern brake discs, such as Brembo’s groundbreaking Pillar Venting Technology (PVT).
Ensuring your vehicle can stop effectively and consistently, regardless of speed, temperature, or load, is fundamental. This requires components manufactured to stringent standards, designed to withstand extreme conditions, and proven to perform. Let's explore what makes a braking system truly effective, starting with the friction material that initiates the stop.
Juratek Brake Pads: Quality You Can Trust
Juratek has established itself as a significant player in the European market for commercial vehicle and LCV brake pads. Their commitment to quality is evident through their adherence to the European standard, ECE R90 (Regulation 90). This crucial regulation was specifically established to meticulously control the performance, manufacturing processes, distribution, sales, and installation of replacement brake pads across Europe. Any brake pad not approved to ECE R90 cannot be legally sold or fitted as a replacement part for vehicles originally type-approved with ECE R90 compliant brakes, underscoring its importance for safety and regulatory compliance.
Juratek’s range of brake pads is one of the largest available in Europe, signifying their extensive coverage and dedication to meeting diverse vehicle needs. All their brake pads, alongside their oe2 own-brand products, are manufactured to strict quality standards and fully approved to ECE R90, offering reassurance of their performance and reliability.
Within the Juratek Friction Programme, two distinct ranges are offered, catering to different performance requirements:
- OEC1/1 Standard: This range is engineered to deliver outstanding performance and excellent fade resistance. Fade resistance is crucial, especially for heavier vehicles or those subjected to prolonged braking, as it ensures the pads maintain their effectiveness even under high temperatures generated during intense use.
- OEC2 Premium: Stepping up in performance, the OEC2 range offers an even higher level of capability. These pads are designed to remain stable across varying speeds and temperatures, providing excellent resistance to pad wear throughout the entire spectrum of operating temperatures. This translates to a longer service life and consistent braking performance, making them ideal for demanding applications.
The choice between OEC1/1 and OEC2 often depends on the specific vehicle application, driving conditions, and desired balance between cost and ultimate performance. Both ranges, however, embody Juratek's commitment to delivering reliable and safe braking solutions for commercial and light commercial vehicles.
Juratek Brake Pad Ranges Comparison
| Feature | OEC1/1 Standard | OEC2 Premium |
|---|---|---|
| Performance Level | Outstanding | High |
| Fade Resistance | Excellent | Excellent |
| Speed Stability | Good | Stable |
| Temperature Stability | Good | Stable (over full range) |
| Pad Wear Resistance | Good | Excellent |
| Primary Benefit | Strong initial performance | Consistent high performance, extended wear life |
Beyond brake pads, Juratek also stocks an extensive range of commercial vehicle brake drums and discs, covering trucks, trailers, PSV (Public Service Vehicles), and light commercial applications. They also offer a range of lined brake shoes, primarily with Don or Lumag linings, providing options for service exchange or re-lining of existing shoes. This comprehensive offering highlights Juratek's role as a complete braking system provider.
Why Do Cars Use Disc Brakes? The Science of Stopping
While brake pads provide the friction, they work in conjunction with brake discs, which are crucial for dissipating the immense heat generated during braking. The process of stopping a vehicle involves transforming its kinetic energy into thermal energy. This conversion primarily occurs at the interface between the brake disc and the brake pad, leading to a substantial rise in local temperature. In the majority of cases, due to the varying heat conductivity of the disc's cast iron and the brake pad's friction material, over 80% of the generated heat is absorbed by the brake disc.
Given this reality, effective cooling of the brake disc is absolutely vital for the braking system to function properly and safely. Cooling occurs through two primary mechanisms: air circulation induced by the vehicle's motion and, more significantly, the movement of air generated by the revolution of the disc itself.
To manage the substantial quantities of heat that need to be dissipated, appropriate design solutions are implemented. The most common solution to increase the heat exchange surface with the air is the use of vented discs. Unlike solid discs, which are typically used on the rear axle of medium-sized cars or the front axle of compact and city cars due to their lower heat dissipation requirements, vented discs feature an internal channel or chambers that allow air to flow through. The width of this ventilation channel and the efficiency of the ventilation shapes are critical factors in enhancing cooling. This design ensures significantly improved cooling compared to solid discs, making them indispensable for the front axles of most vehicles and for any application involving higher performance or heavier loads.
Brembo's Innovation: Pillar Venting Technology (PVT)
Pushing the boundaries of brake disc technology, Brembo, a leading manufacturer, patented its Pillar Venting Technology (PVT) a few years ago. This innovation revolutionised how brake discs manage heat. Thanks to the unique shape and distribution of pillars within the ventilation chamber, PVT manages to create a highly efficient air circulation system. This design allows for greater heat removal, which is paramount for maintaining optimal braking performance.
Furthermore, the strategic positioning of these pillars acts as an effective barrier against the formation and propagation of cracks, which are often a consequence of intense thermal stresses. Since the 1990s, PVT technology has undergone continuous development, significantly improving its performance, particularly in applications for heavy vehicles and vehicles subjected to extreme thermal loads.
PVT Plus: The Next Evolution
The latest advancement from Brembo is the PVT Plus patent, specifically dedicated to trucks and top-performance cars. This system incorporates all previously developed PVT technologies, further enhancing performance during braking. The high temperatures developed during braking inevitably lead to disc wear over time, which can result in reduced braking performance and accelerated brake pad consumption. Thanks to its enhanced cooling system, PVT ventilation significantly increases resistance to thermal cracks by more than 40%. This directly translates to a reduction in wear and a prolongation of the average life of both brake discs and pads, offering substantial benefits in terms of maintenance and operational costs.
Brembo has consistently refined the quality of its PVT vented discs, introducing further innovations like the T Pillar and Star Pillar patents for the truck market. The T Pillar solution is designed to prevent particles from infiltrating the ventilation chamber of truck brake discs, maintaining optimal airflow. The Star Pillar solution further enhances resistance to thermal cracks, crucial for the demanding environment of commercial vehicle braking.
The knowledge gained from these developments culminated in the creation of the PVT Plus system, which is now available for both the truck market and the automotive market, specifically in the premium saloon and high-performance car segments.
Benefits of PVT Plus
The PVT Plus ventilation solution represents a significant leap forward, offering even greater ventilation compared to previous systems, thus guaranteeing a further increase in the durability of both brake pads and discs. Its special cross shape of the ventilation pillars and their unique layout provide an impressive 30% more resistance to thermal cracking. Beyond improved durability, PVT Plus also offers a significant weight reduction of the disc itself, by up to 10%. This lighter design brings several advantages:
- Lower Fuel Consumption: Reduced unsprung mass contributes to better fuel efficiency.
- Fewer CO2 Emissions: A direct consequence of lower fuel consumption.
- Improved Road Handling: Lighter components contribute to better suspension response and overall vehicle agility.
In terms of driving safety, the PVT Plus system is meticulously designed with different geometries for each brake disc. These geometries are specifically tailored to the target vehicle's specifications, ensuring superior safety performance levels in every braking system. This bespoke approach guarantees that the advanced ventilation system is perfectly optimised for the unique demands of each vehicle application.
Comparing Ventilation Technologies
| Feature | Conventional Vented Discs | PVT (Pillar Venting Technology) | PVT Plus |
|---|---|---|---|
| Ventilation Design | Straight vanes | Pillars | Cross-shaped pillars |
| Heat Removal | Good | Greater | Further Improved |
| Thermal Crack Resistance | Standard | Increased by >40% | Increased by >30% (vs. PVT) |
| Disc/Pad Life | Standard | Prolonged | Further prolonged |
| Weight Reduction | None specified | None specified | Up to 10% |
| Particle Infiltration Barrier | No specific design | Pillar layout helps | T Pillar (trucks) helps |
| Key Benefit | Basic cooling | Enhanced cooling, crack resistance | Superior cooling, crack resistance, weight saving |
Frequently Asked Questions About Brake Pads and Discs
Understanding the intricacies of your vehicle's braking system is crucial for safety and maintenance. Here are some common questions answered:
What does ECE R90 approval mean for brake pads?
ECE R90 is a European regulation that ensures aftermarket replacement brake pads and linings perform to the same standard as the original equipment parts they are replacing. This means rigorous testing for performance, strength, and integrity under various conditions. If a brake pad is ECE R90 approved, it has been certified to meet strict safety and quality criteria, providing assurance that it will perform reliably and safely on your vehicle.
Why are vented brake discs better than solid ones?
Vented brake discs are designed with an air gap or channels between two disc surfaces. This design significantly increases the surface area exposed to air and allows for airflow through the disc as it rotates. This enhanced ventilation helps to dissipate heat much more effectively than solid discs. Better heat dissipation prevents brake fade (loss of braking power due to overheating), prolongs the life of the brake pads and discs, and maintains consistent braking performance, especially under heavy use or high speeds.
What is brake fade and how can it be prevented?
Brake fade is the reduction in braking effectiveness that occurs when the braking system, particularly the pads and discs, becomes excessively hot. High temperatures can cause the friction material to lose its grip and the disc to warp or become less effective at absorbing heat. It can be prevented by using high-quality brake components designed for heat dissipation, such as Juratek's OEC2 Premium pads and vented discs, especially those with advanced technologies like Brembo's PVT. Proper driving techniques, such as avoiding prolonged or aggressive braking, also help prevent fade.
How often should I check my brake pads and discs?
Brake inspection frequency can vary depending on your vehicle type, driving habits, and the recommendations in your vehicle’s owner’s manual. However, a general rule of thumb is to have your brakes inspected during every service interval, or at least once a year, by a qualified mechanic. You should also be vigilant for warning signs such as squealing, grinding noises, a soft brake pedal, or a pulsating sensation when braking, which indicate that an immediate inspection is necessary.
Can I mix different brands of brake pads and discs?
While technically possible, it is generally not recommended to mix different brands of brake pads and discs, or even different pad compounds on the same axle. Braking components are designed to work together as a system. Using mismatched parts can lead to uneven wear, reduced braking performance, increased noise, and potentially compromise safety. Always aim to replace brake pads and discs on an axle as a set, using components from reputable manufacturers like Juratek and Brembo that are designed for your specific vehicle and meet relevant safety standards.
Conclusion
The journey from kinetic energy to thermal energy during braking is a demanding one, and the components tasked with this conversion must be of the highest calibre. Juratek brake pads, with their extensive range and adherence to ECE R90 standards, offer a reliable and high-quality solution for commercial and light commercial vehicles. Their OEC1/1 and OEC2 ranges provide options tailored to various performance needs, ensuring excellent fade resistance and wear characteristics.
Complementing these pads are the sophisticated brake discs, where innovations like Brembo's PVT and PVT Plus technologies are redefining heat management and durability. These advancements not only enhance safety by significantly improving resistance to thermal cracks and maintaining consistent performance but also contribute to the overall efficiency and handling of the vehicle through weight reduction. Investing in quality braking components is not merely a maintenance task; it's an investment in safety, reliability, and ultimately, peace of mind on every journey.
If you want to read more articles similar to Mastering Your Stops: Juratek Pads & Disc Tech, you can visit the Brakes category.