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Brake Pad Bedding-in:

For optimal use of any given brake system, the pads and rotor have to be compatible with each other. The bed-in procedure establishes that compatibility between the pad and rotor. This is achieved by a combination of rubbing speed, temperature, line pressure, and Inertia. Bed-in is also influenced by pad and rotor material chemistries. It is always recommended that only compatible pads and rotors be used in any given application. Bedding in advantages:

  1. Gradually heat treats the rotor and eliminates any thermal shock in the rotor.
  2. Burn off volatiles and moisture from the resin that is near pad surface. This will eliminate "green fade."
  3. Establish a layer of transfer film about a few microns thick on the rotor surface. Shearing of the film during friction is an effective source of friction force. Otherwise, when using a freshly ground rotor without the transfer film, the main friction force would come from cutting, plowing, or scoring the asperities on the rotor surface. This leads to inconsistent braking effectiveness.
  4. Mate the two surfaces to a near perfect geometrical match, so that the contact area is high, and therefore the friction force is increased.
  5. The performance of a fresh rotor/fresh pad system would be inconsistent. This is due to ever-changing structures and properties of the two mating materials. Bed-in of pads and rotor will form a stable transfer film.
  6. If bedding in procedure is not applied, a stable transfer film may not be established for a long time. In other words, the rotor surface would have to be constantly regenerating a film that is not quite stable for a long time. This effect would reduce the performance and increase the wear.

Hawk Brake Pad Installation Procedure:

  • Step 1:Install Brake pads properly. Be sure pads are securely positioned in the caliper.
  • Step 2:Flush system with fresh brake fluid.
  • Step 3:Check all hydraulic parts for excess wear and tear.
  • Step 4:Check disc for proper thickness, parallelism, and lateral run-out.
  • Step 5:Check disc for scoring or grooves over .012" depth. If either applies, resurfacing or replacement is required.
  • Step 6:If disc does not need resurfacing then contamination from the previous brake pads must be removed. Sand discs with Garnet sandpaper using moderate pressure. Use soap and water to clean off disc surface after sanding and machining. Discs should be free and clear of oil, grease, and brake fluid.
  • Step 7:Inspect calipers for freedom of movement. Lubricate where necessary.

Hawk Brake Bedding-in Procedure:

  • Step 1:Make 6-10 slow-downs from approximately 30-35 mph to 5 mph. applying moderate pressure. Do not come to a complete stop.
  • Step 2:Make an additional 2 to 3 harder stops from approximately 40-45 mph. to zero.
  • Step 3:DO NOT DRAG THE BRAKES! (after stopping - do not leave your foot on the brake pedal)
  • Step 4:Allow 15 mintutes or more for the brake system to cool down.
  • Step 5:Your new Hawk pads are ready for use.

Ferodo Brake Bedding-in Procedure:

To achieve optimum performance from Ferodo Racing brake pads please follow the instructions below:

  • 1) Perform 25 to 30 trial brake applications, each of approximately 4 seconds, using around 50% of normal race pedal pressure. To shorten the procedure applications can be made along the straights as well as through bends.
  • 2) On completion of trial applications return to the pit lane. Inspect the surface of the brake pads from the two wheels which have been working the hardest. There should be evidence of contact over the full pad area but without glazing. The pads are now ready to race.
Whilst we recommend that pads are inspected, if time does not allow this, assuming procedure (1) has been carried out and a short period of time has elapsed to allow the brake system to cool, the pads will be ready to race.

Important: to optimize the performance and life of both brake pads and discs, during the bedding-in period heat in the braking system should be built up progressively. Pad wear inspection: brake pads must have at least 2mm of friction material. Excessively worn brake pads must be replaced.

Thermal paint temperature control. Using this procedure, if none of the 3 paints has changed appearance and the braking performance is not considered satisfactory, it may be necessary to reduce cooling to the discs. If all 3 paints have changed appearance, it may be necessary to increase cooling to the discs.

Rofren Brake Pad Bedding-in Procedure:

Step 1: Decelerate from 35mph to 5mph - using moderate brake pressure (70-75%) Do not come to a complete stop. Gently re-accelerate to 40mph. Repeat this process 4-6 times.

Step 2: Decelerate from 45mph to 0mph - using more brake pressure (85%) Do not lock the brakes. Do not STAY stopped with your foot on the brake pedal - allow the car to roll slightly. Gently re-accelerate to 45mph. Repeat this process 3 times.

Step 3: Drive a short distance - allowing the brakes to cool. Park the vehicle, and allow the brake system to fully cool to ambient (outside) temperatures (15-30 minutes). While stopped, do not apply the parking brake or keep your foot on the brake pedal for extended periods of time. Your new Rofren pads are now ready for use.

SP Performance Rotor Installation Guide:

Download SP Performance rotor installation guide here (PDF)

NOTE: SP Performance Rotors are direct-replacement parts. They are the same size as the FACTORY ORIGINAL parts.

If you are looking for rotors that are different diameters, thicknesses, bolt-patterns, etc. than the ORIGINAL part for the car.... We recommend that YOU determine what vehicle (year, make, model) has the rotor size that you are looking for.
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