AP Racing Catalogue Issue 4

43 visit www.apracing.com for installation drawings & up to date product range details BRAKE DISCS - Standard Float & Wide Bobbin Mounting Bobbins & Kit Part Numbers for ‘Float in Disc’ Mounting. (Dimensions in mm) Flange Thickness Bobbin Part No. CP2494 Dim’n ‘L’. Nom Float. Bobbin Kit Part No. CP2494 Bolt Part No. CP3845 4.35/4.30 -595MA 4.70/4.75 0.4 -595K08(S) -100 -595K12 -101 4.85/4.80 -593MB 5.20/5.25 0.4 -593K10 -101 -593K12 5.05/5.00 -592MC 5.40/5.45 0.4 -592K10 -101 -592K12 5.55/5.50 -591MH 5.90/5.95 0.4 -591K12 -101 5.65/5.60 -1341MD 5.80/5.85 0.2 -1341K12 -101 5.65/5.60 -589MJ 6.00/6.05 0.4 -589K08 -101 -589K12 -101 -589K12L -102 5.65/5.60 -626ML 6.30/6.35 0.7 -626K12 -101 6.35/6.30 -1342MM 6.50/6.55 0.2 -1342K12 -101 6.35/6.30 -504MP 6.70/6.75 0.4 -504K10 -101 -504K12 -101 -504K12L -102 Note: bobbin kit with ‘L’ suffix denotes longer CP3845-102 bolt in kit. HEAVY DUTY ‘WIDE’ BOBBINS AP Racing offer two options of wide bobbins for heavy duty disc arrangements offering improved stability in high torque applications. - CP4135 a forged one piece bobbin & stud providing improved and unrestricted airflow. (Replaces CP4015 bobbins). - CP7016 a two piece alternative for thicker mounting bell flanges, using separate bolt. The drawings and tables below provide all information required to aid the user. Note: Special tool available, CP4015-137 to change bobbin orientation whilst assembling both CP4135 and CP7016 bobbins. CP4135 - Forged One Piece Bobbin & Stud CP4135 Bobbin & Stud Part Numbers (Dim’n in mm) Dim’n ‘A’ Dim’n ‘L’ Disc Flange Thickness Nominal Disc Float Ident Letter Bobbin / Stud Part No. 21.8/21.2 5.5/5.4 5.05/5.00 0.4 C CP4135-102FC 22.0/21.4 5.7/5.6 5.25/5.20 0.4 E CP4135-103FE 22.2/21.6 5.9/5.8 5.45/5.40 0.4 D CP4135-104FD 22.9/22.3 6.6/6.5 6.15/6.10 0.4 M CP4135-105FM 23.1/22.5 6.8/6.7 6.35/6.30 0.4 P CP4135-106FP 23.6/23.0 7.3/7.2 6.85/6.80 0.4 R CP4135-107FR 24.3/23.7 8.0/7.9 7.55/7.50 0.4 S CP4135-108FS 23.45/22.85 7.15/7.05 6.85/6.80 0.3 Q CP4135-109FQ Bobbin kits available. For part numbers, either look at CP4135 Installation drawing on www.apracing.com or contact AP Racing sales department for details. Ø14.00 6.45 (1 HOLE Ø6.40 THRU) 11.10 10.90 R0.10 MAX ALL ROUND ‘L’ 2.50 9.45 9.40 Ø CP7016 - Two Piece Bobbin/Bolt Alternative. VENTED DISC WITH WIDE BOBBIN FLOAT SYSTEM ¼” UNF KAYLOCK NUT & STEEL WASHER STANDARD BOLTED MOUNTING BELL DIMN ‘A’ DIMN ‘L’ 16.05 REF IDENTIFICATION LETTER R3.20 12.03 14.13 DISC 5.60 KAYLOCK NUT CP3819-108 MOUNTING BELL OLD BOLT HEAD FLOAT FORGED WIDE BOBBIN WITH ¼” UNF THREADED STUD UNRESTRICTED AIRFLOW 2.50 6.50 TYP BOBBIN LENGTH ‘L' DISC FLANGE THICKNESS MTG BELL FLANGE THICKNESS WASHER 0.90 7.20 WASHER CP2494-1305 0.90 2.50 CP2494-117 NUT TIGHTENING TORQUE 14Nm (10.5lb/ft) FLOAT = L - DISC FLANGE THICKNESS (TYPICALLY 0.25 TO 0.4MM NOM) C 7016 P TYPE BOBBIN ¼” UNF 6 LOBE BOLT B B ‘L1' ‘L2' ¼” UNF 6 LOBE BOLT BOBBINS HAVEALETTER STAMPED ON THEM THAT CORRESPONDS TO THE LAST LETTER IN THE PART No 11.96/11.92 5.00 Y R0.10 2.50 DIM ‘L’ 10.00 A A Ø19.05 (¾” STK) 1 HOLE Ø6.45/6.4 THRO Ø13.25 CP7016 Bobbin & Bolt Part Numbers (Dim’n in mm) Dim’n ‘L’ Disc Flange Thickness Nominal Disc Float Ident Letter Bobbin / Stud Part No. 6.525 6.125 0.4 M CP7016-120MM 6.725 6.325 0.4 P CP7016-121MP 6.975 6.575 0.4 T CP7016-125MT 7.075 6.675 0.4 V CP7016-126MV 7.225 7.825 0.4 R CP7016-127MR 7.775 7.375 0.4 X CP7016-132MX 7.925 7.525 0.4 S CP7016-139MS Bobbin kits available. For part numbers, either look at CP7016 Installation drawing on www.apracing.com or contact AP Racing sales department for details. STANDARD ‘FLOAT IN THE DISC’ BOBBIN The AP Racing ‘Float in the Disc’ system uses a disc with an elongated flat sided mounting hole. The harder disc is less prone to wear than the bell but regular maintenance / cleaning is required if float is to be maintained at the original level. N.B. Mounting bell thickness 8.00mm Max but is typically 6.5mm ◘ Float in the disc bobbins. The float in the disc bobbins available for AP Racing floating discs are given in the table below. - All bobbin kits comprise either, CP3845-100, CP3845-101, ¼”UNF bolts, CP2494-117 nut and CP2494-1305 washer and the specified bobbin. ◘ Tightening torque for bolts is 14Nm (10.5lb/ft). ALTERNATIVE ARRANGEMENT REVERSE BOBBIN BRAKE DISC MOUNTING BELL BOBBINS HAVE A LETTER STAMPED ON THEM THAT CORRESPONDS TO THE LAST LETTER IN THE PART No. CP5390-123 WASHER Ø18.0 x 1.60 THICK REVERSING THE BOBBIN AS SHOWN MOVES THE DISC C 2.5mm INBOARD RELATIVE TO THE BELL NORMAL RECOMMENDED ARRANGEMENT DISC FLANGE THICKNESS 0.90 7.2 CP2494-1305 WASHER Ø12.50 CP2494-117 NUT FLOAT CP3845 6 LOBE BOLT BOBBIN LENGTH (SEE DRAWING BELOW) L TIGHTENING TORQUE 14.0Nm (10.5 lb/ft)