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KOYO 6321ZZX Deep Groove Ball Bearings
KOYO 6321ZZX single-row deep groove ball bearing – shielded (zzx). Bore 105mm x OD 225mm x width 49mm. Dynamic load rating 230 kN.
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- Bore 105mm x OD 225mm x width 49mm
- Carries radial and axial loads in both directions
- Dynamic load rating 230 kN - static 153 kN
- KOYO (JTEKT) chrome steel quality
- Metal shields retain grease and exclude dust - permitting higher speeds
- Single-row deep groove ball bearing - Shielded (ZZX)
| Brand | Koyo JTEKT |
|---|---|
| Bearing Type | Deep Groove Ball Bearings |
| Series | 6321 |
| Inner Diameter (Bore) | 105 mm |
| Outer Diameter | 225 mm |
| Width | 49 mm |
| Seal Type | ZZX |
| Material | Chrome Steel (AISI 52100) |
| Clearance | CN |
| Dynamic Load Rating (Cr) | 230000 N (230 kN) |
| Static Load Rating (C₀) | 153000 N |
| Limiting Speed (Grease) | 2900 rpm |
| Limiting Speed (Oil) | 3500 rpm |
| Fillet Radius (r min) | 3 mm |
| Fatigue Load Limit (Cu) | 11.7 kN |
| Weight | 8.05 kg |
| Features & Benefits | Bore 105mm x OD 225mm x width 49mm Carries radial and axial loads in both directions Dynamic load rating 230 kN - static 153 kN KOYO (JTEKT) chrome steel quality Metal shields retain grease and exclude dust - permitting higher speeds Single-row deep groove ball bearing - Shielded (ZZX) |
The KOYO 6321ZZX is a single-row deep groove ball bearing with double metal shields (ZZX) – measuring 105mm bore x 225mm outside diameter x 49mm width.
Load ratings: dynamic 230 kN (Cr) and static 153 kN (C0r) – fatigue load limit 11.7 kN. Limiting speed 2900 rpm with grease lubrication and 3500 rpm with oil lubrication. Minimum fillet radius 3mm.
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 metal shields retain the factory-filled grease and keep out dust and debris while allowing higher speeds than a contact seal.
Manufactured by KOYO (JTEKT) in chrome steel to ISO standards.
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