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KOYO 6912ZZ Deep Groove Ball Bearings
KOYO 6912ZZ single-row deep groove ball bearing – shielded (zz). Bore 60mm x OD 85mm x width 13mm. Dynamic load rating 25.2 kN.
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- Bore 60mm x OD 85mm x width 13mm
- Carries radial and axial loads in both directions
- Dynamic load rating 25.2 kN - static 17.3 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 | 6912 |
| Inner Diameter (Bore) | 60 mm |
| Outer Diameter | 85 mm |
| Width | 13 mm |
| Seal Type | ZZ |
| Material | Chrome Steel (AISI 52100) |
| Clearance | CN |
| Dynamic Load Rating (Cr) | 25200 N (25.2 kN) |
| Static Load Rating (C₀) | 17300 N |
| Limiting Speed (Grease) | 7500 rpm |
| Limiting Speed (Oil) | 8900 rpm |
| Fillet Radius (r min) | 1 mm |
| Fatigue Load Limit (Cu) | 0.940 kN |
| Weight | 0.192 kg |
| Features & Benefits | Bore 60mm x OD 85mm x width 13mm Carries radial and axial loads in both directions Dynamic load rating 25.2 kN - static 17.3 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 6912ZZ is a single-row deep groove ball bearing with double metal shields (ZZ) – measuring 60mm bore x 85mm outside diameter x 13mm width.
Load ratings: dynamic 25.2 kN (Cr) and static 17.3 kN (C0r) – fatigue load limit 0.940 kN. Limiting speed 7500 rpm with grease lubrication and 8900 rpm with oil lubrication. Minimum fillet radius 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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