AP Racing Catalogue Issue 4

41 visit www.apracing.com for installation drawings & up to date product range details BRAKE DISCS - Castings and Face Types DISC CASTING TYPES Details of the various disc castings types available from AP Racing are given below to help you choose the correct disc for your application. NB: AP Racing do not supply unmachined castings, as all discs go through special heat treatments processes during manufacture. CP2222 Solid with Int/Bell Max Dia = Ø280mm Max Thickness = 22mm CP2589 Ventilated with Int/Bell. No. of Vanes = 30 Air Gap = 15.25mm Max Dia = Ø280mm Max Thickness = 21mm DISCFACETYPES Disc Grooves and sometimes cross drilling are normally used on all racing brake discs to clean the surface of the pad & allow gases produced to escape. In doing so the friction characteristics are modified. Different groove and drilling patterns affect the friction characteristic in different ways, some affect overall friction and others the bite or release characteristics & therefore the best solution is not necessarily the same for each application. AP Racing is constantly developing and refining disc face patterns and new variations will be introduced from time to time. The most popular face types are detailed opposite. N.B. Not all Face Types are available for every disc. P = Plain. ( No grooves or holes). Mainly used for road cars where low noise is vital. CP2407 Solid with Int/Bell Max Dia = Ø278mm Max Thickness = 12mm CP3047 Ventilated Curved Vane. No. of Vanes = 24 Air Gap = 15.5mm Max Dia = Ø343mm Max Thickness = 32mm CP3770 Ventilated Curved Vane. No. of Vanes = 24 Air Gap = 6.5mm Max Dia = Ø285mm Max Thickness = 18mm CP3836 Ventilated Curved Vane. No. of Vanes = 36 Air Gap = 19.5mm Max Dia = Ø380mm Max Thickness = 36mm CP3860 Ventilated Curved Vane. No. of Vanes = 60 Air Gap = 18mm Max Dia = Ø310mm Max Thickness = 36mm CP3870 V entilated Curved Vane. No. of Vanes = 70 Air Gap = 16.5mm Max Dia = Ø330mm Max Thickness = 36mm CP3930 Ventilated Curved Vane. No. of Vanes = 30 Air Gap = 15.5mm Max Dia = Ø343mm Max Thickness = 36mm CP4284 Ventilated Curved Vane. No. of Vanes = 84 Air Gap = 21mm Max Dia = Ø410mm Max Thickness = 36mm CP4248 Ventilated Curved Vane. No. of Vanes = 48 Air Gap = 16mm Max Dia = Ø332mm Max Thickness = 30mm CP4348 Ventilated Curved Vane. No. of Vanes = 48 Air Gap = 9mm Max Dia = Ø315mm Max Thickness = 28mm CP4448 Ventilated Curved Vane. No. of Vanes = 48 Air Gap = 11mm Max Dia = Ø295mm Max Thickness = 36mm CP4470 Ventilated Curved Vane. No. of Vanes = 70 Air Gap = 24.5mm Max Dia = Ø332mm Max Thickness = 42mm RP4542 Ventilated Curved Vane. No. of Vanes = 48 Air Gap = 17.5mm Max Dia = Ø366mm Max Thickness = 32mm RP5125 Ventilated with Int/Bell. No. of Vanes = 36 Air Gap = 8mm Max Dia = Ø282mm Max Thickness = 23mm CP4540 Ventilated Curved Vane. No. of Vanes = 28 Air Gap = 8.82mm Max Dia = Ø300mm Max Thickness = 22mm CP4661 Ventilated Curved Vane. No. of Vanes = 61 Air Gap = 20mm Max Dia = Ø330mm Max Thickness = 40mm CP5254 Ventilated Curved Vane. No. of Vanes = 54 Air Gap = 16mm Max Dia = Ø334mm Max Thickness = 32mmm CP5154 Ventilated Curved Vane. No. of Vanes = 54 Air Gap = 20.5mm Max Dia = Ø334mm Max Thickness = 36mm CP5772 Ventilated Curved Vane. No. of Vanes = 72 Air Gap = 19.5mm Max Dia = Ø380mm Max Thickness = 40mm CP3575 Ventilated with Int/Bell. No. of Vanes = 36 Air Gap = 16mm Max Dia = Ø330mm Max Thickness = 36mm CP3580 Ventilated Curved Vane. No. of Vanes = 48 Air Gap = 14mm Max Dia = Ø332mm Max Thickness = 28mm CP3581 Ventilated Curved Vane. No. of Vanes = 48 Air Gap = 19.5mm Max Dia = Ø356mm Max Thickness = 36mm CP3718 Ventilated Curved Vane. No. of Vanes = 48 Air Gap = 17.5mm Max Dia = Ø378mm Max Thickness = 36mm CG4,CG8,CG12 & CG24 = Curved Grooves. (Backward facing). The number specifies grooves per face. Standard pattern. G4,G8,G12 & G24 = Grooved. (Straight forward facing). The number specifies grooves per face. Traditional style groove CR4, 8, 12, 24 = Curved Grooves. (Backward facing running out on O/D to clear debris. Only used on thick wall discs). The number specifies grooves per face. CP4136 Ventilated Straight Vane. No. of Vanes = 36 Air Gap = 9.3mm Max Dia = Ø285mm Max Thickness = 28mm CP4661 Ventilated Curved Vane. No. of Vanes = 61 Air Gap = 20mm Max Dia = Ø332mm Max Thickness = 42mm CP3948 Ventilated Curved Vane. No. of Vanes = 48 Air Gap = 21mm Max Dia = Ø332mm Max Thickness = 36mm CP3947 Ventilated Curved Vane. No. of Vanes = 47 Air Gap = 8mm Max Dia = Ø295mm Max Thickness = 22mm CP5775 Ventilated Curved Vane. No. of Vanes = 72 Air Gap = 17.5mm Max Dia = Ø378mm Max Thickness = 33mm CP4670 Ventilated Curved Vane. No. of Vanes = 70 Air Gap = 22mm Max Dia = Ø332mm Max Thickness = 38mm CP4095 Ventilated Curved Vane. No. of Vanes = 73 Air Gap = 19mm Max Dia = Ø410mm Max Thickness = 36mm CP5914 Ventilated Curved Vane. No. of Vanes = 48 Air Gap = 13.5mm Max Dia = Ø380mm Max Thickness = 32mm CP6072 Ventilated Curved Vane. No. of Vanes = 72 Air Gap = 25.5mm Max Dia = Ø380mm Max Thickness = 42mm CP3847 Ventilated Curved Vane. No. of Vanes = 36 Air Gap = 20mm Max Dia = Ø328mm Max Thickness = 32mm CP3837 Ventilated Curved Vane. No. of Vanes = 36 Air Gap = 14.5mm Max Dia = Ø332mm Max Thickness = 36mm CP3784 Ventilated Curved Vane. No. of Vanes = 48 Air Gap = 16mm Max Dia = Ø380mm Max Thickness = 36mm CP3781 Ventilated Curved Vane. No. of Vanes = 48 Air Gap = 16.5mm Max Dia = Ø356mm Max Thickness = 36mm CP2866 Solid Max Dia = Ø304mm Max Thickness = 10mm RP6565 Ventilated Curved Vane. No. of Vanes = 48 Air Gap = 13.5mm Max Dia = Ø366mm Max Thickness = 32mm CP6372 Ventilated Curved Vane. No. of Vanes = 72 Air Gap = 19.5mm Max Dia = Ø360mm Max Thickness = 36mm RD = Radiused Drilled. (Cross drilled but with radiused run out to reduce noise & improve life compared with standard cross drilling. Usually used on Road applications. D & SD = Cross Drilled. (Drilled holes chamfered). Still preferred with some pad materials but can compromise disc life. RA = ‘J’ Hook Design. Gives improved bite and debris clearance and reduces distortion / vibration, outer grooves run out to O/Diameter. GA = ‘J’ Hook Design. Gives improved bite & debris clearance & reduces distortion / vibration, outer grooves do not run out to O/Diameter. RC = ‘J’Hook Design. As RA design but with 3 hooks across face. Gives improved bite and debris clearance, reduces distortion / vibration, outer grooves run out to O/Diameter. GD = Grooved & Drilled. Usually used on road applications. PG = Partial Groove. Shorter length groove pattern CP6972 Ventilated ‘S’ Vane. No. of Vanes = 72 Air Gap = 19.5mm Max Dia = Ø380mm Max Thickness = 40mm T2= Continuous Grooves. Two continuous grooves per face. Usually for road applications. RP7177 Ventilated Curved Vane. No. of Vanes = 72 Air Gap = 17mm Max Dia = Ø390mm Max Thickness = 36mm GC = ‘J’Hook Design. As RC design but with outer grooves not running out to O/Diameter. Gives improved bite and debris clearance plus reduces distortion / vibration. CP7384 Ventilated ‘S’ Vane, ‘I’ Drive No. of Vanes = 84 Air Gap = 19.0mm Max Dia = Ø400mm Max Thickness = 36mm