2303 KOYO 17x47x19mm Oil lub. 18000 Self aligning ball bearings
| Bearing number | 2303 |
| Size (mm) | 17x47x19 |
| Brand | KOYO |
| Bore Diameter (mm) | 17 |
| Outer Diameter (mm) | 47 |
| Width (mm) | 19 |
| d | 17 mm |
| D | 47 mm |
| B | 19 mm |
| C | 19 mm |
| r min. | 1 mm |
| da min. | 22 mm |
| Da max. | 42 mm |
| ra max. | 1 mm |
| Weight | 0.158 Kg |
| Basic dynamic load rating (C) | 14.5 kN |
| Basic static load rating (C0) | 3.60 kN |
| (Grease) Lubrication Speed | 13000 r/min |
| (Oil) Lubrication Speed | 18000 r/min |
| Calculation factor (e) | 0.49 |
| Calculation factor (Y0) | 1.34 |
| Calculation factor (Y1) | 1.28 |
| Bearing No. | 2303 |
| r(min) | 1 |
| Cr | 14.5 |
| C0r | 3.60 |
| Cu | 0.23 |
| Grease lub. | 13000 |
| Oil lub. | 18000 |
| da(min) | 22 |
| Da(max) | 42 |
| ra(max) | 1 |
| e | 0.49 |
| Y1 | 1.28 |
| Y2 | 1.98 |
| Y0 | 1.34 |
| (Refer.)Mass(kg) | 0.158 |
Detailed Parameters
parameter：
| AST090 21570 Plain bearings | Shaft Dia., Nominal (d):215.0000 ，Outer Diameter :220mm ，Bore Diameter :215mm ，Bearing Type:straight ，Brand:AST |
| GEGZ57HS/K Plain bearings | Size :57.15x100.013x58.877mm ，Brand:LS ，Bore Diameter :57.15mm ，Outer Diameter :100.013mm ，Width :58.877mm |
| K 60x68x30 - ZW Needle roller bearings | Outer Diameter :68mm ，Bore Diameter :60mm ，Bearing number : K 60x68x30:ZW ，Brand:NBS |
| 23218-E1A-K-M Spherical roller bearings | Brand:FAG ，Size :90x160x52.4mm ，Bore Diameter :90mm ，Width :52.4mm ，Outer Diameter :160mm |
| UKTX08+H2308 Bearing units | Bore Diameter :35mm ，L3:83 mm ，Brand:NACHI ，L2:15 mm ，d:35 mm |
| WC87013 Deep groove ball bearings | Brand:NTN ，Size :13x32x12.700mm ，Bore Diameter :13.000mm ，Outer Diameter :32.000mm |
| 52393/52618 Tapered roller bearings | Brand:FBJ ，Outer Diameter :157.162mm ，Bore Diameter :100.012mm ，Size :100.012x157.162x36.512mm ，Width :36.512mm |
| BB1B362637A Deep groove ball bearings | Size :20x52x15mm ，Brand:SKF ，Bore Diameter :20mm ，Outer Diameter :52mm |
| 2313 K Self aligning ball bearings | Size :65x140x48mm ，Brand:NSK ，Outer Diameter :140mm ，Bore Diameter :65mm |
| NK21/16R+IR17X21X16 Needle roller bearings | Outer Diameter :29.000mm ，Size :17x29x16mm ，Brand:NTN ，Bore Diameter :17.000mm |
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