SKF 71911 CD/P4AL Angular Contact Ball Bearing

Technical specification MetricImperial DIMENSIONS d 55 mmD 80 mmB 13 mmd1 62.7 mmd2 62.7 mmD1 72.3 mmb 2.2 mmC1 6.5 mmC2 3.2 mmC3 2 mmr1,2min. 1 mmr3,4min. 0.3 mma 15.6 mm ABUTMENT DIMENSIONS damin. 59.6 mmdbmin. 59.6 mmDamax. 75.4 mmDbmax. 78 mmramax. 1 mmrbmax. 0.3 mmdn 64.7 mm CALCULATION DATA Basic dynamic load ratingC 19.5 kNBasic static load ratingC0 14.6 kNFatigue load limitPu 0.62 kNAttainable speed for grease lubrication 16000 r/minAttainable speed for oil-air lubrication 26000 r/minContact angle? 15 °Ball diameterDw 7.938 mmNumber of ballsz 23Reference grease quantityGref 2.49 cm³PRELOAD AND STIFFNESS (BACK-TO-BACK, FACE-TO-FACE)Preload class AGA 70 NStatic axial stiffness, preload class A 49 N/µmPreload class BGB 140 NStatic axial stiffness, preload class B 65 N/µmPreload class CGC 280 NStatic axial stiffness, preload class C 89 N/µmPreload class DGD 560 NStatic axial stiffness, preload class D 126 N/µmCALCULATION FACTORSCalculation factorf 1.15Calculation factorf1 1Calculation factorf2A 1Calculation factorf2B 1.04Calculation factorf2C 1.09Calculation factorf2D 1.15Calculation factorfHC 1Calculation factorf0 10.4 MASS Mass bearing 0.18 kg