AP Racing Catalogue Issue 3

137 Visit www.apracing.com for full & up to date product range INTRODUCTION & GENERAL INFORMATION. AP Racing offer a range concentric slave cylinders suitable for use with most push type racing clutches. These concentric slave cylinders are lightweight hydraulically self-contained units that mount on the transmission casing and operate the clutch directly. The Aluminium alloy bodies are lightweight and compact, the units feature an integral piston support tube, high temperature seals and scraper ring plus a special high tech, low friction coating. CP6859 & CP3959 are interchangeable with the Saab derived slave cylinders that are in widespread use, but are hydraulically self contained and independent of the gearbox and therefore do not require an oil seal over the input shaft. The slave cylinders are supplied complete with a release bearing in a choice of three fulcrum diameters. Ensure that the unit is installed in the correct position, with the bleed port uppermost as shown in the installation drawings that follow. All fittings intended to seat at the bottom of the hydraulic ports must have an included angle of 90°. Details below apply to all slave cylinders within the range:- Body& Piston Material are AluminiumAlloy. / - Effective Area = 920mm² (1.426in²). - Max Pressure = 8.6N/mm² (1250psi). / - Fluid = Radi-CAL™ R4, R3, R2 or other high quality fluids. CLUTCH SLAVE CYLINDERS - Push Types Slave Part Number. Fulcrum Ø. Max Stroke. Bearing. Bearing Config. CP3959-38 38.0mm 18.0mm CP3457-16 1 CP3959-50 50.0mm 18.0mm CP3457-11 1 CP3959-54 54.0mm 18.0mm CP3457-6 1 CP3959-1250 50.0mm 12.0mm CP3457-9 2 CP3959-1254 54.0mm 12.0mm CP3457-10 2 CP3959-1238-IN 38.0mm 12.0mm CP3457-16 3 Slave Part Numbers. Fulcrum Ø. Max Stroke. Bearing. Bearing Config. CP6859-14 Flat 18.0mm CP3457-22 4 CP6859-38 38.0mm 18.0mm CP3457-16 1 CP6859-45-IN 45.0mm 18.0mm CP3457-19 1 CP6859-50 50.0mm 18.0mm CP3457-11 1 CP6859-54 54.0mm 18.0mm CP3457-6 1 CP6859-1245 45.0mm 12.0mm CP3457-19 2 CP6859-1250 50.0mm 12.0mm CP3457-9 2 CP6859-1254 54.0mm 12.0mm CP3457-10 2 CP6859-1238-IN 38.0mm 12.0mm CP3457-16 3 CP6859-1245-IN 45.0mm 12.0mm CP3457-26 3 CP6859-1250-IN 50.0mm 12.0mm CP3457-11 3 CP6859-1254-IN 54.0mm 12.0mm CP3457-6 3 CP6859-45 45.0mm 18.0mm CP3457-19 5 Note: Drawing for guidance only. Download latest issue installation drawing from www.apracing.com CP3959 SLAVE CYLINDER. CP6859 SLAVE CYLINDER. The CP3959 series of concentric slave cylinders offer a lightweight die cast Aluminium body and are hydraulically self contained with high temperature seals. Interchange- able with SAAB cylinder part no, 4776308 (8729840). TECHNICAL SPECIFICATION. ◘ Weight. - 425g ◘ Hydraulic threads.- M12x1.0 ◘ Replacement seal kit. CP3759-3 ◘ Hydraulic fitting kits available for -3 or -4 aeroquip: - 7/16” (Aluminium adaptor) for - 4 aeroquip - CP3859-15 - 3/8” (Steel adaptor) for -3 aeroquip - CP3859-16 PART NUMBERS The CP6859 series of concentric slave cylinders offer a lightweight forged Aluminium body and are hydraulically self contained with high temperature seals. . TECHNICAL SPECIFICATION. ◘ Weights - CP6859-XX - 361g / -12XX - 257g / -12XX-IN - 346g ◘ Hydraulic threads.- M10x1.0 ◘ Replacement seal kit. CP3759-3 ◘ Hydraulic fitting kits available for -3 or -4 aeroquip: - Hydraulic fitting kit (Steel adaptor 7/16” ‘-4’) CP3759-6. - Hydraulic fitting kit (Steel adaptor 3/8” ‘-3’) CP3759-5. PART NUMBERS Ø 74 . 00 P . C . 45 . 00 10 . 00° 33 . 50° Ø 30 . 40 M I N MTG HOLES 3x Ø 7 . 15 7 . 05 7 . 00° P I STON FULLY RETRACTED P I STON FULLY RETRACTED 48 . 45 BEARING CONFIGURATION 2 : The bearing is housed on the piston via the inner race with the outer race rotating. The stroke has been shortened so as to reduce the overall length . BEARING CONFIGURATION 3: The bearing is housed in the piston via the outer race with the inner race rotating. The stroke has been shortened so as to reduce the overall length . Ø BRG FULCRUM P I STON AT FULL STROKE P I STON AT FULL STROKE Ø 70 . 00 60 . 45 MAX STROKE 12 . 00 77 . 20 MAX 12 . 00 24 . 00 Ø BRG FULCRUM Ø 66 . 00 STROKE 18 . 00 P I STON AT FULL STROKE P I STON FULLY RETRACTED BEARING CONFIGURATION 1: The bearing is housed in the piston via the outer race with the inner race rotating. This is more suitable for high speed applications. 8 . 20 Ø 58 . 99 / 58 . 96 R0 . 25 MAX 2 . 00 59 . 20 Ø BRG FULCRUM 51 . 20 63 . 20 MAX STROKE 12 . 00 Ø 66 . 00 Note: Drawing for guidance only. Download latest issue installation drawing from www.apracing.com P I STON AT FULL STROKE P I STON AT FULL STROKE P I STON AT FULL STROKE P I STON FULLY RETRACTED P I STON FULLY RETRACTED P I STON FULLY RETRACTED REDUCED LENGTH-OUTER RACE ROTATING.BEARING CONFIGURATION 2 (12MM STROKE) - TH I S SLAVE CYL I NDER FEATURES: A SHORTENED STROKE SO AS TO REDUCE THE OVERALL LENGTH . THE BEAR I NG HOUSED ON THE P I STON V I A THE I NNER RACE W I TH THE OUTER RACE ROTAT I NG . REDUCED LENGTH - INNER ROTATING RACE BEARING CONFIGURATION 3 (12MM STROKE) - TH I S SLAVE CYL I NDER FEATURES: A SHORTENED STROKE SO AS TO REDUCE THE OVERALL LENGTH . THE BEAR I NG HOUSED I N THE P I STON V I A THE OUTER RACE . THE I NNER RACE ROTATES , SU I TABLE FOR H I GH SPEED APPL I CAT I ONS . REDUCED LENGTH - FLAT FULCRUM BEARING CONFIGURATION 4 (18MM STROKE) THE BEAR I NG HOUSED I N THE P I STON V I A THE OUTER RACE W I TH THE I NNER RACE ROTATES , SU I TABLE FOR H I GH SPEED APPL I CAT I ONS . FULCRUM D I AMETER 45 . 18 44 . 68 20 . 00° 8 . 50 10 . 00° 5 . 00° 53 . 00° Ø 76 . 00 ALL CONFIGURATIONS 16 . 50 3 X Ø 14 . 90 MOUNT I NG BOSS 3 X Ø 7 . 15 / 7 . 05 MOUNT I NG HOLES FULCRUM D I AMETER Ø 66 . 00 Ø 66 . 00 Ø 70 . 00 53 . 25 41 . 25 56 . 00 44 . 00 R0 . 25 MAX P I STON AT FULL STROKE P I STON FULLY RETRACTED 70 . 00 BEARING CONFIGURATION 1: (18MM STROKE) TH I S SLAVE CYL I NDER FEATURES:THE BEAR I NG I S HOUSED I N THE P I STON V I A THE OUTER RACE THE I NNER RACE ROTATES , SU I TABLE FOR H I GH SPEED APPL I CAT I ONS . 52 . 00 2 . 00 Ø 62 . 60 62 . 50 FULCRUM D I AMETER 7 . 50 Ø 57 . 00 Ø 50 . 00 69 . 00 51 . 00 Ø 66 . 00 CONFIGURATION 5 18MM STROKE - OUTER ROTATING RACE PART NUMBER - CP6859-45 THE BEAR I NG HOUSED ON THE P I STON V I A THE I NNER RACE W I TH THE OUTER RACE ROTAT I NG .

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