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KOYO 6304-2RSC3 Deep Groove Ball Bearings
KOYO 6304-2RSC3 single-row deep groove ball bearing – contact sealed (2rs). Bore 20mm x OD 52mm x width 15mm. Dynamic load rating 19.9 kN. C3 internal clearance.
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| Brand | Koyo JTEKT |
|---|---|
| Bearing Type | Deep Groove Ball Bearings |
| Series | 6304 |
| Inner Diameter (Bore) | 20 mm |
| Outer Diameter | 52 mm |
| Width | 15 mm |
| Seal Type | 2RS |
| Material | Chrome Steel (AISI 52100) |
| Clearance | C3 |
| Dynamic Load Rating (Cr) | 19900 N (19.9 kN) |
| Static Load Rating (C₀) | 7850 N |
| Limiting Speed (Grease) | 9500 rpm |
| Fillet Radius (r min) | 1.1 mm |
| Fatigue Load Limit (Cu) | 0.660 kN |
| Weight | 0.144 kg |
The KOYO 6304-2RSC3 is a single-row deep groove ball bearing with double contact rubber seals (2RS) – measuring 20mm bore x 52mm outside diameter x 15mm width.
Load ratings: dynamic 19.9 kN (Cr) and static 7.85 kN (C0r) – fatigue load limit 0.660 kN. Limiting speed 9500 rpm with grease lubrication. Minimum fillet radius 1.1mm.
Deep groove ball bearings are the most widely used bearing type – carrying radial and axial loads in both directions with low friction and high running accuracy. The double contact rubber seals give superior protection against dust – dirt and moisture for contaminated environments – and retain the factory-filled grease for life.
C3 internal clearance: this bearing is supplied with greater than normal (CN) internal radial clearance. C3 suits applications with an interference fit on the shaft or in the housing – a temperature differential between the inner and outer rings – or shaft expansion under load – where the extra clearance prevents the bearing from becoming preloaded in service.
Manufactured by KOYO (JTEKT) in chrome steel to ISO standards.
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