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NVH Strategies for Disc Brakes Fresno CA

Chamfers and slots change the natural frequency a which the pad oscillates. against a spinning rotor, they glide like a hockey puck on ice. If there is play between the pads and caliper, the pads can chatter and vibrate as they ride over the surface of the rotor. Depending on the frequency of the vibration, this can create a high pitched squeal that really annoys some people.

Triple A Automotive
(559) 321-7103
906 Barstow
Clovis, CA
Blackstone Brake & Auto Repair
(559) 264-7863
1558 N Effie Street%2C %23 102
Fresno, CA
Rick's Tire & Service
(559) 485-7970, 001-2004
1501 Fulton Street
Fresno, CA
A & J Auto Repair
(559) 222-3912
4323 N Blackstone Avenue %23 B
Fresno, CA
D & R Automotive of Fresno Inc
(559) 266-6060
901 M Street
Fresno, CA
Belmont Tire & Automotive
(559) 485-8970
1449 E Belmont Avenue
Fresno, CA
Cars
(559) 485-7296
2229 E McKinley Avenue
Fresno, CA
Goodguys Tire Center
(559) 221-1438
4140 N Blackstone Avenue
Fresno, CA
Brownie Muffler Service
(559) 237-2081
3316 E Ventura Avenue
Fresno, CA
Goodguys Tire Center
(559) 237-9383
2530 N Weber Avenue
Fresno, CA
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NVH Strategies for Disc Brakes


Pads may be supported by anti-rattle clips or springs that minimize play between the pads and caliper and further dampen vibrations.

Nobody likes noisy brakes. Vehicle manufacturers go to great lengths to minimize brake noise, vibration and harshness (NVH) because potential car buyers won’t tolerate it. A vehicle that has NVH problems is a vehicle that will have expensive warranty claims. The vehicle won’t make a favorable impression when taken for a test drive, nor will it receive good reviews in the press if the brakes are noisy.

Vehicle manufacturers depend on their brake suppliers to do much of the preliminary testing on the individual components that go into a vehicle’s disc brake system.  This includes testing the friction materials on a brake dynamometer to make sure the coefficients of friction are correct for the application, that the pad design provides adequate noise suppression without adversely affecting stopping power, pedal feel, fade resistance or wear. 

The brakes are then tested on the vehicle to make sure they meet FMVSS-135 requirements.  Test track drivers then provide objective and subjective evaluations of how well the brakes perform (including noise levels).  When everything passes muster, the brakes are approved and released for production.

Considering all the steps that are involved in the brake selection, design and refining process, you would think most OEM brakes are dead quiet. Mo...

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