NuPad follows my successful brake invention known as NRS sold to Nucap Industries.


Forced siding contact at a slight angle induces noise, vibration and harshness (NVH).

Small individual TOLERANCES STACK UP at final brake installation such that each individual caliper is at a slight random angle to the disc, some will be angled against rotation. These will vibrate intolerably with a costly warranty-squeal that can also weaken pad bonding.


The Cure NuPad

(NuPad follows on my first brake invention NRS sold to Nucap.) 

NuPad has a slightly raised (~0.010”) centre on which it pivots slightly to exactly match its caliper’s unique angle. NuPad begins its life’s wear flat to the disc and at that slight angle eliminating vibration, NVH, judder, and squeal And eliminates endless expensive warranty claims for ‘repairing’ what are otherwise perfectly good brakes.

I can convert samples of your existing pads to my -NuPads- for your evaluation and can suggest an evaluation method. 


DETAIL:

Production tolerances that stack together on brake-vehicle assembly include:

 • calipers: piston, cylinder, slide-pins and holes, and attachment bosses and holes; 

 • pad: imperfect flatness, thickness;

 • discs: concentricity, axle-hub, disc flange face and bearing bores;

 • vehicle: cast/machined caliper brackets, steering knuckles, hub carriers bosses and bolt holes;

 • the jigs, fixtures, and tooling used in manufacture, and their changing condition with use;

 • final brake and vehicle condition at installation, damage, burrs, defects, and bolt torques.


NuPads don’t require expensive chamfers or shims making them safer, cheaper, quieter, longer lasting, lighter and with less dust release in manufacture and use.

                

In addition, NuPad is a ‘no-cost’ solution. Manufacturing and evaluation methods have been devised for confidential discussion.


The NuPad pending patent application, and new, yet to be filed applications, with world potential, are for sale. They offer the potential fo decades of huge earnings from a small purchase price.


Contact: Winston MacKelvie, Inventor, (90+) 

winstonworks@me.com Tel 1-450-243-6850 Txt 1-450-330-4293 

www.inventure.ca

Some Background


Traditional friction chamfering is not a NVH fix but does reduce safety from its smaller contact area and increases pad wear from reduced friction volume, and increases toxic brake dust from faster wear, chamfering also results in brakes too big and heavy for what is functionally a smaller pad. Unneeded weight reduces EV range, fuel economy, performance, and handling. Brake shims are another no-fix (8 per car), that cost OEM’s more millions. 



Expert Quotes:

“Brake noise, even for vehicle manufacturers, continues to be the single largest brake warranty item, even after many hundreds of hours are spent on both brake dynamometer and vehicle to eliminate brake noises for each new vehicle platform,” observes Bob Peters chief engineer, friction material engineering with Akebono Brake Corporation. “The fact is that brake noise is nearly impossible to simulate on the computer and, consequently, most noise mitigation work is done on actual parts, using both special noise dynamometers and on the vehicle. This is expensive and time-consuming.” [and unsuccessful]

    https://thebrakereport.com/aftermarket-search-quieter-brake/

 

“In the last few decades, there have been extensive studies on analysis and investigation of disc brake vibrations done by many researchers around the world on the possibility of eliminating brake vibration to improve vehicle users' comfort. Despite these efforts, still no general solution exists.”

    https://www.researchgate.netpublication258725751


“Friction-induced vibration and noise emanating from car disc brakes is a source of considerable discomfort and leads to customer dissatisfaction. The high frequency noise above 1 kHz, known as squeal, is very annoying  and very difficult to eliminate.” 

    https://www.researchgate.net/publication/258994745_Recent_Studies_of_Car_disc_Brake_Squeal

   

“New Jersey lawsuit claims genuine Audi replacement brake pads and rotors are defective on Q7 model.

Audi Q7 squeaky brakes have caused a class-action lawsuit filed for all New Jersey  citizens who had brakes installed by Audi dealers between July 19, 2012, to the  present.”

“BMW was hit this week with a class action lawsuit over excessive brake squeal. In July, we reported that a similar law suit against Audi was settled.” The Brake Report Aug 8 2021

 Media News  

  

“In the last few decades, there have been extensive studies on analysis and investigation of disc brake vibrations done by many researchers around the world on the possibility of eliminating brake vibration to improve vehicle users' comfort. Despite these efforts, still no general solution exists.”  

www.researchgate.netpublication258725751 


“…. I hate brake squeal, I actually have an existing noise on my truck, tried 2 sets of different pads and rotors front and back and still can’t get rid of the noise!”

    J. Dutton, Florida, Auto parts salesperson