21304CDKE4 NSK e 0.31 20x52x15mm Spherical roller bearings
| Bearing number | 21304CDKE4 |
| Size (mm) | 20x52x15 |
| Brand | NSK |
| Bore Diameter (mm) | 20 |
| Outer Diameter (mm) | 52 |
| Width (mm) | 15 |
| d | 20 mm |
| D | 52 mm |
| B | 15 mm |
| C | 15 mm |
| r min. | 1.1 mm |
| da min. | 27 mm |
| da max | 28 mm |
| Da min | 42 mm |
| Da max. | 45 mm |
| ra max. | 1 mm |
| Weight | 0.17 Kg |
| Basic dynamic load rating (C) | 29.3 kN |
| Basic static load rating (C0) | 26.9 kN |
| (Grease) Lubrication Speed | 6300 r/min |
| (Oil) Lubrication Speed | 8200 r/min |
| Calculation factor (e) | 0.31 |
| Calculation factor (Y0) | 2.1 |
| Calculation factor (Y2) | 3.2 |
| Y3 | 2.1 |
| hidYobi | 21304CDKE4 |
| LangID | 1 |
| Y1 | 2.1 |
| D_ | 52 |
| Y2 | 3.2 |
| Macha rpm | 0 |
| B_ | 15 |
| CAD | https://service.web2cad.co.jp/pcom/maker_login.php?Maker=NSK_RB&language=ja&info=nsk_rb/roller_bearings/spherical_rb/tapered_bore_asmtab.prj&varset={STAN=-}.{ORDER=21304CDKE4}.{SD=20}.{D=52}.{B=15.0}.{R=1.1}.{CR1=29300}.{COR1=26900}.{LT=10000}.{LM=-}.{LG=6300}.{LO=8200}.{DA1=27}.{DA2=28}.{DA3=45}.{DA4=42}.{RA=1.0}.{E=0.31}.{Y2=3.2}.{Y3=2.1}.{Y0=2.1}.{MASS=0.17} |
| da min | 27 |
| hidTable | ecat_NSSPHR |
| Oil rpm | 8200 |
| Y0 | 2.1 |
| mass | 0.17 |
| GRS rpm | 6300 |
| ra | 1 |
| TSR rpm | 10000 |
| C0 | 26.9 |
| DE_ | 43.065 |
| X0 | 1 |
| Prod_Type3 | SRB_CTB_TB |
| X1 | 1 |
| X2 | 0.67 |
| SIR | 4.5 |
| e | 0.31 |
| DA_ | 7 |
| bomp | 21304CDKE4 |
| Z_ | 13 |
| ALP2 | 50 |
| ALP1 | 11 |
| ALP3 | 0 |
| D_a max | 45 |
| D_a min | 42 |
| yobi | 21304CDKE4 |
| ALPHA_ | 0.207 |
| SDM_ | 36.214 |
| r | 1.1 |
| KBRG | 2321 |
| SBRG | 3 |
| DI_ | 29.362 |
| calcUrl | /BearingGuide/html/calculation.jsp |
Detailed Parameters
parameter：
| LL352149/LL352110 Tapered roller bearings | Brand:Timken ，Bore Diameter :279.4mm ，Size :279.4x317.5x24.384mm ，Outer Diameter :317.5mm |
| 23056 CW33 Spherical roller bearings | Width :106mm ，Size :280x420x106mm ，Outer Diameter :420mm ，Bore Diameter :280mm ，Brand:CX ，d:280 mm |
| K20x26x20 Needle roller bearings | Brand:ISO ，Outer Diameter :26mm ，Size :20x26x20mm ，Bore Diameter :20mm |
| HJ-8811240 Needle roller bearings | Size :139.7x177.8x63.5mm ，Fw:139.7 mm ，Brand:Timken ，Outer Diameter :177.8mm ，Width :63.5mm ，Bore Diameter :139.7mm |
| R173.13 Wheel bearings | Designation SKF:VKBA 1961 ，Designation Ruville:7313 ，Designation FAG:713619260 ，Brand:SNR ，Designation SX:CX370 |
| SA1021 Angular contact ball bearings | Size :40x90x23.1mm ，Brand:FAG ，Bore Diameter :40mm ，d:40 mm ，Width :23.1mm ，Outer Diameter :90mm |
| NUP2315 Cylindrical roller bearings | d:75 mm ，Size :75x160x55mm ，Outer Diameter :160mm ，Bore Diameter :75mm ，Brand:KOYO ，Width :55mm |
| W678AZZ Deep groove ball bearings | Outer Diameter :12.000mm ，Size :8x12x3.500mm ，Width :3.500mm ，Bore Diameter :8.000mm ，Brand:NTN |
| 22340 CCK/W33 Spherical roller bearings | Outer Diameter :200mm ，Size :420x200x138mm ，Brand:SKF ，Bore Diameter :420mm |
| 2RT20501 Thrust roller bearings | Size :1023x1600x192mm ，Width :192.000mm ，Outer Diameter :1600.000mm ，Bore Diameter :1023.000mm ，Brand:NTN |
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