AP Racing Catalogue Issue 3

139 Visit www.apracing.com for full & up to date product range STANDARD RELEASE BEARING. 35MM INNER DIAMETER - OUTER RACE ROTATES. RELEASE BEARINGS. These high quality Release Bearings are designed for use with AP Racing Clutches and are suitable for high loads and continuous high speed high temperature operation. They offer a greater release load capability and superior performance under arduous racing conditions compared to standard production bearings. The bearings have steel cages and hardened steel shells for durability and are filled with a special high temperature grease. Of the six bearings within the range, Three have a radiused release fulcrum and are suitable for all straight fingered diaphragm spring clutches and are available with either a 38mm, 45mm 50mm or 54mm diameter release fulcrum suitable for all AP Racing Sintered or Cerametallic Racing Clutches. Two have flat faces which are suitable for production type curly fingered diaphragm clutches. - CP3457-1 Release Fulcrum Dia ‘A’ = 50mm. This bearing is suitable for use with most Ø115, Ø127 & Ø140mm racing clutches. - CP3457-2 Release Fulcrum Dia ‘A’ = 54mm. This bearing is suitable for use with most Ø184, Ø200 & Ø215mm racing clutches - CP3457-9 Release Fulcrum Dia ‘A’ = 50mm. This bearing is suitable for use with most Ø115, Ø127 & Ø140mm racing clutches. - CP3457-10 Release Fulcrum Dia ‘A’ = 54mm. This bearing is suitable for use with most Ø184, Ø200 & Ø215mm racing clutches. - CP3457-19 Release Fulcrum Dia ‘A’ = 45mm. This bearing is suitable for use with most Ø115, Ø127 & Ø140mm racing clutches. RELEASE MECHANISM.) As the spring rate and clamp load of the clutch in- creases so does the release bearing load required to release the clutch. The release bearing used should be a highquality steel caged radius contact ball bearing either 38mm, 45mm or 50mm (for Ø115mm, Ø127mm, Ø138mm and Ø140mm carbon / race clutches) or 54mm for (Ø184mm, Ø200mm and Ø215mm carbon / race clutches). The release mechanism should be arranged so that the bearing is free of the spring fingers when the clutch is fully engaged. The release travel should be limited by means of an external stop to avoid damage to the diaphragm spring. Suitable release bearings are available from AP Racing see details opposite and below. IMPORTANT NOTE / INSTALLATION OF BEARINGS. T o prevent internal damage to ball races when fitting bearings onto release mechanism, use only the minimum force necessary on the surfaces marked ‘B’ only. The following bearing assemblies are filled with Kluber Asonic HQ72-102 grease, CP3457-1, -2, -6, -11, -16. STANDARD RELEASE BEARING. 40MM INNER DIAMETER - OUTER RACE ROTATES. - CP3457-23 Operates on round nose diaphragm spring fingers with a fulcrum diamter between Ø49mm to Ø56mm. - CP3457-11 Release Fulcrum Dia ‘A’ = 50mm. This bearing is suitable for use with most Ø115, Ø127 & Ø140mm racing clutches. - CP3457-6 Release Fulcrum Dia ‘A’ = 54mm. This bearing is suitable for use with most Ø184, Ø200 & Ø215mm racing clutches. - CP3457-16 Release Fulcrum Dia ‘A’ = 38mm. This bearing is suitable for some Ø115mm racing clutches, and clutches from other manufacturers. - CP3457-26 Release Fulcrum Dia ‘A’ = 45mm. This bearing is suitable for use with most Ø115, Ø127 & Ø140mm racing clutches. FLAT FACED RELEASE BEARING. 40MM INNER DIAMETER - OUTER RACE ROTATES. HIGH SPEED RELEASE BEARING - INNER RACE ROTATES. Ø70.25 MAX Ø45.00 Ø60.00 Ø45.0 MIN (ABUTMENT DIA) 40.000 39.988 Ø FLAT 16.0 18.25 15.0 - CP3457-22 Operates on round nose diaphragm spring fingers with a fulcrum diamter between. - CP3457-22 for Ø50mm to Ø56mm. FLAT FACED, HIGH SPEED RELEASE BEARING. - INNER RACE ROTATES. 17.00 8.89 14.00 Ø62.000 61.987 Ø57.00 MINIMUM ABUTMENT Ø32.75 MINIMUM Ø50.05 Ø57.00 B B CLUTCH RELEASE BEARINGS - CP3457 - CP3457-24 Release Fulcrum Dia ‘A’ = 50mm. This bearing is suitable for use with most Ø115, Ø127 & Ø140mm racing clutches. REDUCED THICKNESS BEARING. - OUTER RACE ROTATES. 15.25 12.00 13.25 Ø’A’ B* B* Ø63.25 m ax Ø40.000 39.388 Note: Drawings for guidance only. Download latest issue installation drawings from www.apracing.com

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