AP Racing Catalogue Issue 4

79 visit www.apracing.com for installation drawings & up to date product range details BALANCE BARS & CABLE ADJUSTERS HIGH EFFICIENCY TRUNNION TYPES These small and compact balance bars use needle roller bearings, to provide low hysteresis and high efficiency. These versions are designed to fit at the fixed end of master cylinders fitted with integral trunnions, such as CP6461, CP6465 & CP6467 (Pull Type) and CP7854. NOTE: For the latest Installation drawing and advice for installation of sleeve and balance bar visit our website: www.apracing.com CP5520-3 ANGLED TRUNNION 35.80 71.60 54.00 27.00 11.00 10.00 45.00 24.00 45.00 1.00 Ø10.00 M14x1.00 20.00 5.00x45° 50.00 MAX,5 TURNS 50.00 MAX,5 TURNS 32.00 74.00 24.00 7.00 16.04 40.50 R2.50 TYP 14.50° 13.50° MUST OPERATE WITHIN THESE LIMITS BALANCE BAR SHOWN CENTRAL 22.00 35.80 71.60 54.00 27.00 11.00 10.00 32.00 74.00 7.00 37.00 24.00 45.00 45.00 Ø10.00 1.00 20.00 5.00x45° M14x1.00 R2.50 TYP 50.00 MAX, 5 TURNS 50.00 MAX, 5 TURNS BALANCE BAR SHOWN CENTRAL CP5520-25 TRUNNION STYLE A new concept in balance bars where the central pivot is a trunnion rather than a spherical bearing. This has the advantage of preventing balance bar movement in the vertical plane, thus removing the largest cause of un- wanted balance variation. The centre trunnion and clevises employ needle roller bearings to reduce friction and hysteresis to a minimum, improving modulation. CP5520-25 can be attached to the pedal or to the fixed end of the pedal box. This specific version is designed to fit CP7855 type cylinder. This balance bar is available with or without clevis’s, Part Numbers: - CP5520-25L without Clevis. - CP5520-25LC with Clevis. Supercession: CP5520-25L replaces CP5520-2 and CP5520-25LC replaces CP5520-13. NOTE: For the latest Installation drawing and advice for installation of sleeve and balance bar visit our website: www.apracing.com 12.00 45.00 24.00 14.00 71.60 17.00 30.00 20.00 22.20 57.00 57.00 10.00 Ø4.0 HOLE FOR CABLE ADJUSTER 2 OFF M4x0.7 GRUB SCREW (4C) TO RETAIN CABLE INCLUDED BALANCE BAR THREAD M14x1.0 20.00 FULL THREAD 4 HOLES M4x0.7 6.00mm FULL THREAD 5/16" x 24UNF EACH CLEVIS CP5520-4 STRAIGHT TRUNNION RIGHT ANGLED DRIVE ASSEMBLY CP5500-66 is a device that connects the balance bar cable adjuster CP2905-8 directly to all AP Racing Balance bars, as well as others on the market. CP5500-66 improves the installation and keeps the cable out of the way of the clutch / throttle pedals. Specifications - Type 90° Bevel Gearbox. - Ratio 1:1 . - Max Torque 0.68Nm - Weight 33g. - Backlah 2° - Max Temp 80°C. CABLE ADJUSTERS CP2905-8 (WITH END CONNECTOR). CP2905-18 (NO END CONNECTOR). Are high quality balance bar cable adjusters ideal for any competition vehicle. Anodised aluminium alloy body with ¼ turn click stops for positive vibration proof positioning. The Ø3.8mm inner steel cable has a polyethylene ‘FR’ self extinguishing outer tube and is generally stiffer than most adjuster cables on the market to resist ‘windup’. The adjuster body can easily be fitted through a Ø20mm hole in the dashboard. CP2905-8 or -18 are available in 1200mm or 900mm lengths, with an adjustable end fitting, allowing the cable to be cut to the required length, the kit includes cable clips and two directional stickers. Note: Adjusters available with the following cable lengths, without end connector: - CP2905-29 - 900mm of cable / - CP2905-33 - 1800mm of cable. INSTALLATION OF ADJUSTER CABLES Ensure that the balance bar is correctly installed and turns freely (see above). The cable should not be installed with any bends of less than 50mm (2”) radius, otherwise wind-up may occur. For maximum stiffness, the outer cable should be securely fastened in place along its complete length, using the clips provided. Cut the cable to the required length, preferably using an elastic grinding wheel, secure end fitting to balance bar, insert cable and lock in place with grub screw. PANEL THICKNESS MIN 1.00 MAX 8.00 34.00 Ø19.05 BARREL DIA CABLE LENGTH 1200MM 3/8” x 24UNF 5.00 FULL THR’D DEPTH 20.00 Ø6.35 OUTER CABLE M3 x 0.5 23.20 CP2905-8 CP2905-18 16.5 8.0 40.5 27.4 9.0 17.0 R6 Ø 4.000 / 3.988 Ø 12.7 / 12.6 Note: Drawing for guidance only. Download latest issue installation drawing from www.apracing.com