CNR Group - Brakes

CNR Brake Systems are the highest quality brakes, brake pads, brake rotors, and kits!Each brake will greatly enchance the performance of your vehicle.
The CNR Sport discs are premium OEM replacement units that meet or exceed all vehicle manufacturers’ specifications and tolerances. They are fully compatible with stock calipers wheels and other chassis components, easily mounting onto the vehicle. The brake discs are built in high carbon ductile iron and they are available either drilled or slotted. The brake discs are then plated for corrosion resistance and for a bold, aggressive appearance.
As a most experienced sports brake manufacture in China, all of our products have been put under extreme torture test, and for specification tests using an on - board data processing system. By utilizing this systematic production process, The prototypes are fitted onto actual car to check for proper fittings and performance,so CNR’s brakes can achieve a high quality product at a reasonable price.

Part #	Application
RONS-001F (1pc) RONS-001R (1pc)	Nissan 300zx 89—96(turbo or non-turbo), OEM fitting Diameter: F-280.3mm, R-296.5mm
RONS-002F (1pc) RONS-002R (1pc)	Nissan 350Z 03—05 standard, performance, enthusiast & touring models infiniti G35 Sedan 2WD 8/2002—2004 infiniti G35 coupe w/Auto trans 8/2002—2004 infiniti G35 Sedan 4WD 2004—2005 infiniti w/o dynamic control system 1/02—8/02, OEM fitting
ROTY-003F (2pcs)	Toyota Supra JZA80, OEM fitting Diameter:323mm
ROMT-004F (2pcs)	Mitsubishi Lancer EVO 8 , OEM fitting Diameter:320mm
ROHD-005F (2pcs)	Honda Integra DC5 Type - S, USA AND JAPAN MODEL Diameter:300mm
RONS-006F (2pcs)	Nissan Skyline R33 GT-R OEM fitting, OEM fitting Diameter:324mm
ROSB-007F (2pcs)	SUBARU wrx GDB STI , OEM fitting only
ROVW-008F (1pc)	VW Bora : 1.8 20V 98 and on , 1.8 20V 4motion 99 and on, 1.9 Diesel (Ch # 1JX400001 and on) 98 and on , 1.9 Turbo Diesel 98 and on , 1.9 Turbo Diesel 4motion 99 and on , 2.0 98 and on , 2.0 4motion 98 and on , Diameter: F-280mm

Material :

China

Germany
DIN 1693

France
NF

England
BS

Netherlands
NEN

Sweden
MNC

USA
ASTM A536

EN-GJS-450-10

420/12

65-45-12

Hardness
HB30

Tensile Strength
Rm N/mm2

0,2 Proof Stress
Rp0,2 N/mm2

Elonga tion
A5 %

Machinability

Microstructure

160-210

450-600

310-410

20-10

good

Ferrit and
Perlit

CNR rotors are made of ductile iron to offer a better friction surface and better heat dissipation.
The typical chemical analysis of ductile iron casting contain, Carbon 3.3 to 3.8%, Silicon 2.2 to 2.8%, Manganese 0.1 to 0.5%, Sulfur 0.005 to 0.02%, Phosphorus 0.005 to 0.04%, Magnesium 0.03 to 0.05%, balance (i.e., 100% minus the above elements) is the element iron. The unique characteris of ductile iron casting is that the graphite forms into a spherical shape.

The physics of Braking systems :
While the rotor serves as the primary heat sink in the braking system, it is the functional responsibility of the rotor to generate a retarding torque as a function of the brake pad frictional force. This torque is related to the brake pad frictional force as follow:

* where Tr=the torque generated by the rotor
* where Reff=the effective radius (effective moment arm) of the rotor (measured from the rotor center of rotation to the center of pressure of the caliper pistons)

Because the rotor is mechanically coupled to the hub and wheel assembly, and because the tire is assumed to be rigidly attached to the wheel, the torque will be constant throughout the entire rotating assembly as follows:

* where Tt=the torque found in the tire
* where Tw=the torque found in the wheel

Note that this relationship assumes 100% mechanical efficiency of all components at the wheel end. In practical application, mechanical deflection and relative motion between the rotating components prevents this condition.

Fully cast and CNC machined to ensure the highest quality; CNR's high performance brake system enables superior brake modulation while improving overall pedal feel to ensure equal distribution of weight transfer when braking.

HONDA CIVIC TYPE R , DC2, ED, EF, EG, EK 88-00 , EXCEPT DC5 BRAKE KITS (CALIPER IS 4 POTS ) -- COMING SOON .