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KOYO 6312ZZ Deep Groove Ball Bearings
KOYO 6312ZZ single-row deep groove ball bearing – shielded (zz). Bore 60mm x OD 130mm x width 31mm. Dynamic load rating 102 kN.
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- Bore 60mm x OD 130mm x width 31mm
- Carries radial and axial loads in both directions
- Dynamic load rating 102 kN - static 52.2 kN
- KOYO (JTEKT) chrome steel quality
- Metal shields retain grease and exclude dust - permitting higher speeds
- Single-row deep groove ball bearing - Shielded (ZZ)
| Brand | Koyo JTEKT |
|---|---|
| Bearing Type | Deep Groove Ball Bearings |
| Series | 6312 |
| Inner Diameter (Bore) | 60 mm |
| Outer Diameter | 130 mm |
| Width | 31 mm |
| Seal Type | ZZ |
| Material | Chrome Steel (AISI 52100) |
| Clearance | CN |
| Dynamic Load Rating (Cr) | 102000 N (102 kN) |
| Static Load Rating (C₀) | 52200 N |
| Limiting Speed (Grease) | 5200 rpm |
| Limiting Speed (Oil) | 6200 rpm |
| Fillet Radius (r min) | 2.1 mm |
| Fatigue Load Limit (Cu) | 3.95 kN |
| Weight | 1.7 kg |
| Features & Benefits | Bore 60mm x OD 130mm x width 31mm Carries radial and axial loads in both directions Dynamic load rating 102 kN - static 52.2 kN KOYO (JTEKT) chrome steel quality Metal shields retain grease and exclude dust - permitting higher speeds Single-row deep groove ball bearing - Shielded (ZZ) |
The KOYO 6312ZZ is a single-row deep groove ball bearing with double metal shields (ZZ) – measuring 60mm bore x 130mm outside diameter x 31mm width.
Load ratings: dynamic 102 kN (Cr) and static 52.2 kN (C0r) – fatigue load limit 3.95 kN. Limiting speed 5200 rpm with grease lubrication and 6200 rpm with oil lubrication. Minimum fillet radius 2.1mm.
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 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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