12580/12520 NSK D_ 49.225 20.638×49.225×19.845mm Tapered roller bearings
| Bearing number | 12580/12520 |
| Size (mm) | 20.638×49.225×19.845 |
| Brand | NSK |
| Bore Diameter (mm) | 20.638 |
| Outer Diameter (mm) | 49.225 |
| Width (mm) | 19.845 |
| d | 20.638 mm |
| D | 49.225 mm |
| T | 19.845 mm |
| B | 19.845 mm |
| C | 15.875 mm |
| ra1 max. | 1.5 mm |
| a | 12.9 mm |
| r min. | 1.5 mm |
| r1 min. | 1.5 mm |
| Da | 42.5 mm |
| db | 26 mm |
| ra max. | 1.5 mm |
| da | 28.5 mm |
| Db | 45.5 mm |
| Weight | 0.181 Kg |
| Basic dynamic load rating (C) | 36 kN |
| Basic static load rating (C0) | 37 kN |
| (Grease) Lubrication Speed | 8000 r/min |
| (Oil) Lubrication Speed | 11000 r/min |
| Calculation factor (e) | 0.32 |
| Calculation factor (Y0) | 1 |
| LangID | 1 |
| ALP23 | 0 |
| outer r | 1.5 |
| ALP22 | 18 |
| D_ | 49.225 |
| ALP21 | 24 |
| SHOG_yobi | 12580R/12520R |
| RAr | 105.28 |
| inner r | 1.5 |
| GRS rpm | 8000 |
| D_b | 45.5 |
| D_a | 42.5 |
| DE_ | 41.386 |
| SLR | 13 |
| Prod_Type3 | TRBSR_ID_A |
| BETA_ | 2 |
| ALPHA_ | 12.15 |
| SDM_ | 34.815 |
| calcUrl | /BearingGuide/html/calculation.jsp |
| DA1 | 7.348 |
| DA2 | 6.445 |
| hidYobi | 12580/12520 |
| Y1 | 1.9 |
| B_ | 19.845 |
| Oil rpm | 11000 |
| hidTable | ecat_NSTPRI |
| Y0 | 1 |
| inner ra | 1.5 |
| outer rb | 1.5 |
| C0 | 37 |
| CUP | 0.067 |
| e | 0.32 |
| DA_ | 6.899 |
| BET21 | 4 |
| BET22 | 0 |
| BET23 | 0 |
| Z_ | 13 |
| C_ | 15.875 |
| yobi | 12580/12520 |
| KBRG | 3161 |
| CONE | 0.114 |
| DI_ | 27.98 |
Detailed Parameters
parameter：
| 5210AZ Angular contact ball bearings | Size :50x90x30.2mm ，d:50 mm ，Bore Diameter :50mm ，Width :30.2mm ，Outer Diameter :90mm ，Brand:NACHI |
| LMEFM40 Linear bearings | d:40 mm ，d1:9 mm ，Outer Diameter :62mm ，D:62 mm ，Bore Diameter :40mm ，Brand:Samick |
| PK28X33X13.8 Needle roller bearings | Fw:28.000 mm ，Bore Diameter :28.000mm ，Brand:NTN ，Outer Diameter :33.000mm |
| JH307749/JH307710 Tapered roller bearings | Size :55x110x39mm ，Brand:NSK ，Bore Diameter :55mm ，Outer Diameter :110mm ，Width :39mm |
| NUP3252 Cylindrical roller bearings | Brand:ISO ，Size :260x480x174mm ，Width :174mm ，Outer Diameter :480mm ，Bore Diameter :260mm |
| 6038M Deep groove ball bearings | Outer Diameter :290mm ，Size :190x290x46mm ，Width :46mm ，Bore Diameter :190mm ，Brand:CRAFT |
| R8 Deep groove ball bearings | Size :12.7x28.575x6.35mm ，Bore Diameter :12.7mm ，Width :6.35mm ，Outer Diameter :28.575mm ，Brand:CYSD |
| 691XZZ Deep groove ball bearings | Width :2.6mm ，Bore Diameter :1.5mm ，d:1.5 mm ，Size :1.5x5x2.6mm ，Brand:FBJ ，Outer Diameter :5mm |
| MF41X Deep groove ball bearings | Bore Diameter :1.2mm ，d:1.2 mm ，Outer Diameter :4mm ，Brand:ISO ，Width :1.8mm ，Size :1.2x4x1.8mm |
| NCF 2926 CV Cylindrical roller bearings | Width :30mm ，Size :180x130x30mm ，Outer Diameter :130mm ，Bore Diameter :180mm ，Brand:SKF |
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