SKF
SKF 71914 ACE/P4AL Angular Contact Ball Bearing
Product Code:71914 ACE/P4AL
Description
Technical specification MetricImperial DIMENSIONS d 70 mmD 100 mmB 16 mmd1 79.3 mmd2 76.8 mmD1 90.52 mmb 2 mmC1 8.6 mmC2 2.8 mmC3 2.8 mmr1,2min. 1 mmr3,4min. 0.3 mma 29.1 mm ABUTMENT DIMENSIONS damin. 74.6 mmdbmin. 72 mmDamax. 95.4 mmDbmax. 98 mmramax. 1 mmrbmax. 0.3 mmdn 81.5 mm CALCULATION DATA Basic dynamic load ratingC 20.8 kNBasic static load ratingC0 15.3 kNFatigue load limitPu 0.655 kNAttainable speed for grease lubrication 16500 r/minAttainable speed for oil-air lubrication 26000 r/minContact angle? 25 °Ball diameterDw 9.525 mmNumber of ballsz 22Reference grease quantityGref 4.3 cm³PRELOAD AND STIFFNESS (BACK-TO-BACK, FACE-TO-FACE)Preload class AGA 190 NStatic axial stiffness, preload class A 131 N/µmPreload class BGB 570 NStatic axial stiffness, preload class B 197 N/µmPreload class CGC 1130 NStatic axial stiffness, preload class C 258 N/µmCALCULATION FACTORSCalculation factorf 1.14Calculation factorf1 0.99Calculation factorf2A 1Calculation factorf2B 1.04Calculation factorf2C 1.07Calculation factorfHC 1Calculation factore 0.68Calculation factor (single, tandem)Y2 0.87Calculation factor (single, tandem)Y0 0.38Calculation factor (single, tandem)X2 0.41Calculation factor (back-to-back, face-to-face)Y1 0.92Calculation factor (back-to-back, face-to-face)Y2 1.41Calculation factor (back-to-back, face-to-face)Y0 0.76Calculation factor (back-to-back, face-to-face)X2 0.67 MASS Mass bearing 0.32 kg
Technical Specifications
Technical specification 
DIMENSIONS
| d | 70 mm | |
|---|---|---|
| D | 100 mm | |
| B | 16 mm | |
| d1 | 79.3 mm | |
| d2 | 76.8 mm | |
| D1 | 90.52 mm | |
| b | 2 mm | |
| C1 | 8.6 mm | |
| C2 | 2.8 mm | |
| C3 | 2.8 mm | |
| r1,2 | min. 1 mm | |
| r3,4 | min. 0.3 mm | |
| a | 29.1 mm |
ABUTMENT DIMENSIONS
| da | min. 74.6 mm | |
|---|---|---|
| db | min. 72 mm | |
| Da | max. 95.4 mm | |
| Db | max. 98 mm | |
| ra | max. 1 mm | |
| rb | max. 0.3 mm | |
| dn | 81.5 mm |
CALCULATION DATA
| Basic dynamic load rating | C | 20.8 kN |
|---|---|---|
| Basic static load rating | C0 | 15.3 kN |
| Fatigue load limit | Pu | 0.655 kN |
| Attainable speed for grease lubrication | 16500 r/min | |
| Attainable speed for oil-air lubrication | 26000 r/min | |
| Contact angle | ? | 25 ° |
| Ball diameter | Dw | 9.525 mm |
| Number of balls | z | 22 |
| Reference grease quantity | Gref | 4.3 cm³ |
| Preload class A | GA | 190 N |
|---|---|---|
| Static axial stiffness, preload class A | 131 N/µm | |
| Preload class B | GB | 570 N |
| Static axial stiffness, preload class B | 197 N/µm | |
| Preload class C | GC | 1130 N |
| Static axial stiffness, preload class C | 258 N/µm |
| Calculation factor | f | 1.14 |
|---|---|---|
| Calculation factor | f1 | 0.99 |
| Calculation factor | f2A | 1 |
| Calculation factor | f2B | 1.04 |
| Calculation factor | f2C | 1.07 |
| Calculation factor | fHC | 1 |
| Calculation factor | e | 0.68 |
| Calculation factor (single, tandem) | Y2 | 0.87 |
| Calculation factor (single, tandem) | Y0 | 0.38 |
| Calculation factor (single, tandem) | X2 | 0.41 |
| Calculation factor (back-to-back, face-to-face) | Y1 | 0.92 |
| Calculation factor (back-to-back, face-to-face) | Y2 | 1.41 |
| Calculation factor (back-to-back, face-to-face) | Y0 | 0.76 |
| Calculation factor (back-to-back, face-to-face) | X2 | 0.67 |
MASS
| Mass bearing | 0.32 kg |
|---|