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MAN GENUINE DISC BRAKES The product comparison shows: there’s greater safety with MAN quality.
MAN GeNuiNe Disc BrAkesThe product comparison shows: there’s greater safety with MAN quality.
In critical driving situations you have to be able to rely 100% on your brakes. They are decisive for your own safety, that of your passengers or cargo, and for the safety of other road users. The heavy work is done by the brake discs and linings because they slow down tonnes of load every time the brake is applied. This subjects the brake callipers, discs and linings to huge forces – the heat generated here pushes the material to the max. In extreme situations, temperatures can reach up to 900°C, which tells you just how important the quality of brakes discs and linings is.This means that MAN Genuine Disc Brakes have to function with no compromises, last for a long time and provide the highest possible level of safety so that you reach your destination safely, day after day.
In black and white in the DEKRA test report: the combination of MAN Genuine Brake Discs and Brake Linings was significantly better than the products of the other manufacturers tested. A clear plus for your safety and for cost effectiveness.
Your advantages at a glance:n No compromises on your safety
n Long service life and excellent cost effectiveness thanks to optimal wear behaviour
n Perfectly coordinated with your vehicle, your driving profile and your use
n Consistent quality from the first braking through to the wear limit
n Ideal frictional pairing of the brake disc and the brake lining
No coMproMises oN your sAfety.
First choice.
In your MAN you have chosen outstanding quality. Similarly, when it comes to spare parts, don’t compromise on performance, service life or safety either. MAN Genuine Parts are unsurpassed in terms of reliability, quality and safety. The development competence of more than a century in vehicle production flows directly into research and development. For future success.
Thanks to its long history of development competence, MAN not only meets the highest requirements but sets standards that go far beyond prescribed statutory minimum requirements. To ensure this, MAN practises a sophisticated development, test and approval process. Bound by quality.
MAN Genuine Brake Discs are made exclusively from special alloys of the highest quality. The friction material of MAN Genuine Brake Linings is also subject to stringent requirements and is manufactured from a highly complex mixture of organic and metallic components. MAN Genuine Brake Discs and Brake Linings are perfectly matched to each another and it is this combination that generates optimum brake output with minimal wear.
Moreover, different frictional pairings have been developed, depending on the type of operation and driving profile of the respective vehicle. In this way, MAN offers you the ideal product for your purposes – from the very first braking right up to the wear limit.
No coMproMises oN sAfety AND quAlity.
Test results:
MAN Genuine Brake Linings
TROST Repstar brake linings
Winkler brake linings
Fading
The high quality of MAN Genuine Brake Linings is unequalled – as confirmed by a product comparison* carried out by the independent inspection institute DEKRA. Brake lining pairings from various manufacturers together with MAN Genuine Brake Discs were tested for performance, wear and thermal cracks. These individual tests were performed in accordance with applicable standards and provide information on the most important quality characteristics of the brake linings.
* The tests were performed in accordance with internationally recognised regulations and were monitored and documented by the German inspection institute DEKRA. The documented tests are not representative tests, so the results cannot be generalised. In other words, the results published here refer solely to the products named in the test and not to others that are also on the market. The DEKRA test records are archived at MAN Truck & Bus and may be viewed at any time.
The test.In the test series, the performance and fading behaviour of the friction materials were measured and evaluated, then compared with the characteristics of the other products.
Fading is the chemical/physical phenomenon that decreases the braking effect at increasing operating temperatures – from a technical point of view, increasing operating temperature decreases the coefficient of friction between the brake lining and the disc.
Fading may occur in driving operation, for example during continual braking on a downhill drive. Slight fading or a constant coefficient of friction gives the driver an even and predictable braking feeling and greater safety due to shorter braking distances.
An important quality feature of brake lining performance is thus minimal fading, as well as highly stable braking torque in all operating situations. With MAN Genuine Parts you’re always on the safe side.
Your advantages with MAN Genuine Brake Linings:n High level of safety thanks to constant braking effect across all temperature
rangesn Optimum driving comfort due to predictable braking feeling at constant pedal
pressure
Excerpt from the DEKRA test report:
n ‚In the EC fading test, a more constant braking effect was achieved with the MAN brake lining, which was reflected in both the curve progression in the systems and the delta analysis.‘
Variance from initial braking torque at increasing temperatures
As the temperature rises, MAN Genuine Brake Linings provide the most constant brake torque. The biggest variance is a mere 4.5%.
100° 300° 500°
-3.6 %
4.5 %
-11.6 %
-35.6 %
-20.5 % -24.6 %
Brak
ing
perfo
rman
ce
MAN
TROST
Winkler
testeD to the liMit.Trust is good, but control is better.
The products:
MAN Genuine Brake LiningsItem no. 81.508206072MAN Truck & Bus AG
Repstar brake liningsPart no. ME 031 50 001TROST Vehicle Parts
Winkler brake liningsPart no. 327 929 059 00Christian Winkler GmbH & Co. KG
#1 perforMANce test
Test results:
MAN Genuine Brake Linings
TROST Repstar brake linings
Winkler brake linings
Number of test cycles passed
30
5
Test stopped prematurely because disc cracked right
through!
6
Test stopped prematurely because disc cracked right
through!
The test.In the wear test, brake lining and disc wear subsequent to standardised braking operations was measured and evaluated, then compared with the characteristics of the other products. For this purpose, the test parts were measured and weighed before and after the wear test, while interim measurements were made during the test after the program had been running for specified periods of time.
The decrease in brake lining thickness is the most important criterion for judging wear. Abrasive wear is caused by friction between the brake lining and brake disc. The lowest possible wear is thus a significant quality feature of the useful life of brake linings.
The test series in the temperature range up 300°C is especially important in the wear test. It reflects the operating state in normal road deployment. By contrast, increased wear at higher temperature ranges is generally desirable in order to prevent linings from glazing.
Weight advantage of MAN Genuine Brake Linings.Measurements of the weight prior to the wear test showed that MAN Genuine Brake Linings were – at the same thickness – the lightest of the products tested.
Greater lining weight at the same lining thickness in conjunction with a heavy vibration load may cause more damage to brake components. Lower lining weight can lengthen the useful life of a disc brake as a whole by a considerable amount.
The test.In the thermal cracking test, the condition of the respective brake disc after application of a specified thermomechanical load by the brake linings was inspected, evaluated and compared with the condition of the other products.
The most important test criterion here is material fatigue in the form of thermal cracks in the brake discs. Thermal cracks occur as a consequence of uneven temperature distribution and the resulting thermal stresses within the brake disc. To a certain extent, the occurrence of such cracks on the surface can be tolerated. However, a crack right through a brake disc necessitates expensive replacement.
MAN’s own specification requires 30 test cycles, which is more than the customary industry standard. If a brake disc cracks though to the cooling duct, the test has been failed.
Only the combination with MAN Genuine Brake Linings achieved the specified 30 test cycles. The thermal cracking test of the other brake linings had to be stopped prematurely after five and six test cycles respectively because the brake discs in each case were cracked right through.
Test results:
MAN Genuine Brake Linings
TROST Repstar brake linings
Winkler brake linings
Wear at 100300°C
6.24 mm
6.81 mm
8.80 mm
Excerpts from the DEKRA test report:
n ‚... the MAN and Repstar linings exhibit less wear in the 100°C to 300°C range.‘
n ‚... The Genuine Brake Lining from MAN, with similar values in the wear test, was the lightest prior to the test ...‘
Weight comparison:
MAN Genuine Brake Linings
TROST Repstar brake linings
Winkler brake linings
Average weight of single lining
2.34 kg 2.85 kg 2.61 kg
Difference per lining
+ 0.51 kg + 0.27 kg
Difference per set of linings (four single linings)
+ 2.04 kg
+ 1.08 kg
Your advantages with MAN Genuine Brake Linings:n Long service life and excellent cost effectiveness thanks to optimal wear
behaviourn Lower load on brake system due to lower lining weight
Your advantages with MAN Genuine Brake Linings:n Safety thanks to the high level of protection provided by ideally matched
frictional pairings against discs cracking throughn Increased durability of brake discs due to highquality lining material
#2 WeAr test #3 therMAl crAckiNG test
MAN Truck & Bus – a member of the MAN Group
D110.568/E · Printed in Germany Texts and illustrations are nonbinding. We reserve the right to make modifications for reasons of technical progress. All specifications in this publication represent the status at the time of going to press.
MAN Truck & Bus AGDachauer Straße 66780995 Münchenwww.mantruckandbus.com
