SKF
SKF 71915 ACB/HCP4AL Angular Contact Ball Bearing
Product Code:71915 ACB/HCP4AL
Description
Technical specification MetricImperial DIMENSIONS d 75 mmD 105 mmB 16 mmd1 85.94 mmd2 84.55 mmD2 97.5 mmb 1.5 mmC1 8.6 mmC2 3.8 mmC3 2.7 mmr1,2min. 1 mmr3,4min. 0.6 mma 32.3 mm ABUTMENT DIMENSIONS damin. 79.6 mmdbmin. 79.6 mmDamax. 100 mmDbmax. 101.8 mmramax. 1 mmrbmax. 0.6 mmdn 86.9 mm CALCULATION DATA Basic dynamic load ratingC 13.3 kNBasic static load ratingC0 12.5 kNFatigue load limitPu 0.39 kNAttainable speed for grease lubrication 18000 r/minAttainable speed for oil-air lubrication 28000 r/minContact angle? 25 °Ball diameterDw 6.35 mmNumber of ballsz 34Reference grease quantityGref 4.76 cm³PRELOAD AND STIFFNESS (BACK-TO-BACK, FACE-TO-FACE)Preload class AGA 80 NStatic axial stiffness, preload class A 135 N/µmPreload class BGB 160 NStatic axial stiffness, preload class B 173 N/µmPreload class CGC 480 NStatic axial stiffness, preload class C 262 N/µmCALCULATION FACTORSCalculation factorf 1.11Calculation factorf1 0.99Calculation factorf2A 1Calculation factorf2B 1.02Calculation factorf2C 1.08Calculation factorfHC 1.01Calculation 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 0.34 kg
Technical Specifications
Technical specification 
DIMENSIONS
| d | 75 mm | |
|---|---|---|
| D | 105 mm | |
| B | 16 mm | |
| d1 | 85.94 mm | |
| d2 | 84.55 mm | |
| D2 | 97.5 mm | |
| b | 1.5 mm | |
| C1 | 8.6 mm | |
| C2 | 3.8 mm | |
| C3 | 2.7 mm | |
| r1,2 | min. 1 mm | |
| r3,4 | min. 0.6 mm | |
| a | 32.3 mm |
ABUTMENT DIMENSIONS
| da | min. 79.6 mm | |
|---|---|---|
| db | min. 79.6 mm | |
| Da | max. 100 mm | |
| Db | max. 101.8 mm | |
| ra | max. 1 mm | |
| rb | max. 0.6 mm | |
| dn | 86.9 mm |
CALCULATION DATA
| Basic dynamic load rating | C | 13.3 kN |
|---|---|---|
| Basic static load rating | C0 | 12.5 kN |
| Fatigue load limit | Pu | 0.39 kN |
| Attainable speed for grease lubrication | 18000 r/min | |
| Attainable speed for oil-air lubrication | 28000 r/min | |
| Contact angle | ? | 25 ° |
| Ball diameter | Dw | 6.35 mm |
| Number of balls | z | 34 |
| Reference grease quantity | Gref | 4.76 cm³ |
| Preload class A | GA | 80 N |
|---|---|---|
| Static axial stiffness, preload class A | 135 N/µm | |
| Preload class B | GB | 160 N |
| Static axial stiffness, preload class B | 173 N/µm | |
| Preload class C | GC | 480 N |
| Static axial stiffness, preload class C | 262 N/µm |
| Calculation factor | f | 1.11 |
|---|---|---|
| Calculation factor | f1 | 0.99 |
| Calculation factor | f2A | 1 |
| Calculation factor | f2B | 1.02 |
| Calculation factor | f2C | 1.08 |
| Calculation factor | fHC | 1.01 |
| 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 | 0.34 kg |
|---|