2304 AST 20x52x21mm Material 52100 Chrome steel (or equivalent) Self aligning ball bearings
| Bearing number | 2304 |
| Size (mm) | 20x52x21 |
| Brand | AST |
| Bore Diameter (mm) | 20 |
| Outer Diameter (mm) | 52 |
| Width (mm) | 21 |
| Bearing Type – double row self-aligning | double row selfaligning |
| Bore Dia (d) | 20.0000 |
| Outer Dia (D) | 52.0000 |
| Width (B) | 21.0000 |
| Radius (min) (rs) | 1.100 |
| Dynamic Load Rating (Cr) | 18.500 |
| Static Load Rating (Cor) | 4.700 |
| Max Speed (Grease) (X1000 RPM) | 11.000 |
| Max Speed (Oil) (X1000 RPM) | 14.000 |
| Max. Shaft Shoulder Dia. Inner (Li) | 26.5 |
| Min. Housing Shoulder Dia., Outer (Lo) | 45.5 |
| Weight (g) | 193.00 |
| Precision | A1 |
| Standard Clearance | C0 |
| Material | 52100 Chrome steel (or equivalent) |
Detailed Parameters
parameter：
| 4T-22780/22720 Tapered roller bearings | Y0:0.82 ，Y2:1.49 ，d1:63 mm ，e:0.4 |
| 6379/6320 Tapered roller bearings | Bore Diameter :65.088mm ，Size :65.088x135.755x53.975mm ，Outer Diameter :135.755mm ，Brand:NACHI |
| SI35TXE-2LS Plain bearings | d:35 mm ，Brand:SKF ，Bore Diameter :35mm ，d2 max.:84 mm |
| 6922NR Deep groove ball bearings | Outer Diameter :150mm ，Brand:NTN ，Size :110x150x20mm ，Width :20mm ，Bore Diameter :110mm |
| 513246 Tapered roller bearings | Width :38mm ，Brand:Timken ，Bore Diameter :40mm ，Outer Diameter :80mm ，Size :40x80x38mm |
| HK0709 Needle roller bearings | Size :7x11x9mm ，Outer Diameter :11mm ，Bore Diameter :7mm ，Brand:FBJ |
| GE 10 C Plain bearings | Weight / Kilogram:0.01 ，BDI Inventory:2.0 ，Minimum Buy Quantity:N/A ，EAN:7316576609176 ，Category:Spherical Plain Bearings - Radial ，Manufacturer Name:SKF |
| SQ 14 C RS Plain bearings | Brand:ISB ，L2:8 mm ，d:14 mm ，S1:17 mm |
| EGB4020-E50 Plain bearings | Size :40x44x20mm ，Brand:INA ，Bore Diameter :40mm ，Outer Diameter :44mm |
| 30324-A Tapered roller bearings | Bore Diameter :120mm ，Outer Diameter :260mm ，Brand:FAG ，d:120 mm ，Width :59.5mm ，Size :120x260x59.5mm |
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