SKF
SKF 71901 ACE/P4AH Angular Contact Ball Bearing
Product Code:71901 ACE/P4AH
Description
Technical specification MetricImperial DIMENSIONS d 12 mmD 24 mmB 6 mmd1 16 mmd2 15.26 mmD1 19.95 mmK 0.5 mmC1 3.65 mmr1,2min. 0.3 mmr3,4min. 0.15 mma 7.7 mm ABUTMENT DIMENSIONS damin. 14 mmdbmin. 14 mmDamax. 22 mmDbmax. 23.2 mmramax. 0.3 mmrbmax. 0.15 mmdn 16.8 mm CALCULATION DATA Basic dynamic load ratingC 2.03 kNBasic static load ratingC0 0.865 kNFatigue load limitPu 0.036 kNAttainable speed for grease lubrication 83000 r/minAttainable speed for oil-air lubrication 123000 r/minContact angle? 25 °Ball diameterDw 3.175 mmNumber of ballsz 12Reference grease quantityGref 0.1 cm³PRELOAD AND STIFFNESS (BACK-TO-BACK, FACE-TO-FACE)Preload class AGA 18 NStatic axial stiffness, preload class A 27 N/µmPreload class BGB 55 NStatic axial stiffness, preload class B 41 N/µmPreload class CGC 110 NStatic axial stiffness, preload class C 53 N/µmCALCULATION FACTORSCalculation factorf 1.04Calculation 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 0.01 kg
Technical Specifications
Technical specification 
DIMENSIONS
| d | 12 mm | |
|---|---|---|
| D | 24 mm | |
| B | 6 mm | |
| d1 | 16 mm | |
| d2 | 15.26 mm | |
| D1 | 19.95 mm | |
| K | 0.5 mm | |
| C1 | 3.65 mm | |
| r1,2 | min. 0.3 mm | |
| r3,4 | min. 0.15 mm | |
| a | 7.7 mm |
ABUTMENT DIMENSIONS
| da | min. 14 mm | |
|---|---|---|
| db | min. 14 mm | |
| Da | max. 22 mm | |
| Db | max. 23.2 mm | |
| ra | max. 0.3 mm | |
| rb | max. 0.15 mm | |
| dn | 16.8 mm |
CALCULATION DATA
| Basic dynamic load rating | C | 2.03 kN |
|---|---|---|
| Basic static load rating | C0 | 0.865 kN |
| Fatigue load limit | Pu | 0.036 kN |
| Attainable speed for grease lubrication | 83000 r/min | |
| Attainable speed for oil-air lubrication | 123000 r/min | |
| Contact angle | ? | 25 ° |
| Ball diameter | Dw | 3.175 mm |
| Number of balls | z | 12 |
| Reference grease quantity | Gref | 0.1 cm³ |
| Preload class A | GA | 18 N |
|---|---|---|
| Static axial stiffness, preload class A | 27 N/µm | |
| Preload class B | GB | 55 N |
| Static axial stiffness, preload class B | 41 N/µm | |
| Preload class C | GC | 110 N |
| Static axial stiffness, preload class C | 53 N/µm |
| Calculation factor | f | 1.04 |
|---|---|---|
| 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 | 0.01 kg |
|---|