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Brakes

Brake discs and pads

Renault Trucks Offer

Renault Trucks brake discs and pads are designed to work together to ensure optimal braking performance; tests are carried out on bench and in the field .

Developed for each vehicle model according to its use, the pads have a perfect geometry to adapt to the brake calipers. They prevent vibrations, thermal cracks and premature wear of the brake disc.

To ensure braking performance, all pads should be changed at the same time. It also reduces the number of visits to the repairer .

Key arguments

Optimized materials
  • Compliance with strict specifications.
  • Regular checks during the manufacturing process.
  • Reduced risk of formation and propagation of cracks on the brake discs.
A specification that is stricter than the ECE R90 regulation
  • Optimization of the elements of the system according to the use.
  • Improved driving comfort.
  • Braking distance reduced by up to 16% compared to adaptable parts.
A specific design for each vehicle
  • Less noise.
  • Less vibrations.
  • Better braking efficiency.
The service in addition
  • 2 year warranty (parts, labor, repair, towing).
  • Start & Drive Excellence contract for worry-free maintenance.
  • Packages to offer turnkey solutions to customers.
Optimized materials

The materials of each component have been carefully chosen:

  • too soft friction material will cause premature pad wear;
  • too hard a friction material will prematurely wear the brake disc.

Following analyzes carried out on the brake discs, it was shown that 8 out of 9 adaptable discs did not comply with the Renault Trucks specifications. The low carbon and silicon levels observed on certain competing parts lead to poor conductivity and thermal instability: adaptable discs do not have alloy elements and are therefore more sensitive to heat than Renault Trucks discs; they also have sand residues which can interfere with their cooling. It is these variations in thickness in the materials of the adaptable discs that cause thermal instability.

Renault Trucks original parts comparison table

 

A specification that is stricter than the ECE R90 regulation

The ECE R90 regulations specify that after-sales, brake pads can only be sold if they are at least 85% as resistant as original pads.
The Renault Trucks specifications require a deceleration greater than that required by the ECE R90 regulations in order to increase safety.

What is the risk of having 15% less resistance?

1. Premature wear of brake pads and / or adaptable brake discs. From 300 ° C, wear is ten times faster, while a Renault Trucks brake pad can reach 700 ° C.
2. Appearance of noises .
3. Risk of increased dispersion between the sets of pads fitted to the same vehicle (overall performance not homogeneous from one axle / wheel to another).

WARNING !
The EBS system has been calibrated with Renault Trucks brake pads. Using any other brake pad can result in even longer braking distances.

Graphic

 

A specific design for each vehicle

With adaptable parts, there is a high risk of having brake asymmetries over time and noise. Deformations of the pad appear, causing imbalances and vibrations at the brake pedal. Road holding becomes hazardous, with the risk of shifting when braking.

In some disc / pad configurations, the addition of a chamfer allows smoother braking and reduced vibration. This gives greater driving comfort and less noise related to braking.

Renault Trucks original brake pads were initially developed without a chamfer. This is added later if necessary after a road test. The presence of the chamfer is therefore determined according to the use of the vehicle. A large chamfer will last regardless of the pad wear.

Chamfer

The groove in the middle of the pad prevents cracks from appearing on the friction material. The deeper it is, the longer it will last despite the wear of the friction material.

Brochure

It was also noted that the ears of some adaptable parts are less strong and therefore would break more easily. This would lead to more noise / vibration, increased risk of parts breaking and reduced service life.

A specific design for each vehicle

The service in addition

A wide range of services is available:

  • the Start & Drive Excellence contract: efficient and tailor-made maintenance;
  • the personalized and scalable maintenance plan: to consider vehicle maintenance with complete peace of mind;
  • maintenance packages: packaged interventions with a price fixed in advance for billing without surprises;
  • 24/7: for permanent mobility.

Customer benefits

Comfort
  • Less vibrations and noise for better driving comfort.
  • Optimal braking because there is no ovalization of the disc.
security
  • High temperature performance.
  • Braking distance reduced by up to 16% compared to adaptable parts.
  • EBS system calibrated with Renault Trucks brake pads.
Economy
  • Up to 45% longer life compared to competitors.
  • Controlled maintenance intervals for less downtime and costs on the vehicle.
Comfort

The joint design of the brake system's disc and pad elements ensures that the design and friction materials are suitable for the use of the vehicle.

The chamfers and grooves also allow smoother braking and reduced vibrations. This gives greater driving comfort and less noise related to braking.

As the pads remain in perfect contact with the brake disc, braking performance and driving comfort are thus guaranteed whatever the temperature levels.

security

Renault Trucks brake pads are very insensitive to temperature, which gives them very high friction coefficient stability when heated. Brake discs also see the risk of crack formation and propagation reduced. This guarantees better elasticity and braking safety .

The Renault Trucks specifications require a deceleration greater than that required by the ECE R90 regulations in order to increase safety.

Brake line comparison

In addition, the EBS system has been calibrated with Renault Trucks brake pads. Using any other brake pad can result in even longer braking distances .

Economy

In the case of adaptable parts and knowing that the temperatures reached by the brake discs can be extreme, the pads may be charred and the discs may crack.
From 300 ° C (normal temperature on a disc brake), wear is 10 times faster .

Renault Trucks engineers observed that a difference of 1 mm in the thickness of the brake pad (adaptable parts) reduced the service life by 6% .

It is essential to choose the original part in order to optimize component replacement and reduce maintenance costs.

Medias

FAQ

I don't want to buy original Renault Trucks parts because they are too expensive compared to adaptable parts.

Renault Trucks brake discs and pads have been developed jointly. This ensures that you have the right design for all optimized parts and friction materials.
By purchasing an adaptable part, you run the risk of having a different friction material:

  • too soft material will cause premature wear of the brake pads;
  • too hard a material will prematurely wear the brake disc.

In these two cases, the costs generated will be higher because the parts will have to be changed more quickly.

 

I have such severe use that I prefer to put parts at a low price.

By using adaptable parts at low cost, you are putting your safety at risk.
Renault Trucks has established specifications that exceed ECE R90 regulations in order to improve safety. The comparison with brake pads meeting the minimum specifications of this regulation showed that it took 5 meters more to stop at 60 km / h and 8 meters more at 80 km / h.
Whatever use you have of your vehicle, don't forget about safety!

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