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KOYO 6908ZZ Deep Groove Ball Bearings
KOYO 6908ZZ single-row deep groove ball bearing – shielded (zz). Bore 40mm x OD 62mm x width 12mm. Dynamic load rating 17.1 kN.
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- Bore 40mm x OD 62mm x width 12mm
- Carries radial and axial loads in both directions
- Dynamic load rating 17.1 kN - static 9.95 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 | 6908 |
| Inner Diameter (Bore) | 40 mm |
| Outer Diameter | 62 mm |
| Width | 12 mm |
| Seal Type | ZZ |
| Material | Chrome Steel (AISI 52100) |
| Clearance | CN |
| Dynamic Load Rating (Cr) | 17100 N (17.1 kN) |
| Static Load Rating (C₀) | 9950 N |
| Limiting Speed (Grease) | 11000 rpm |
| Limiting Speed (Oil) | 13000 rpm |
| Fillet Radius (r min) | 0.6 mm |
| Fatigue Load Limit (Cu) | 0.570 kN |
| Weight | 0.112 kg |
| Features & Benefits | Bore 40mm x OD 62mm x width 12mm Carries radial and axial loads in both directions Dynamic load rating 17.1 kN - static 9.95 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 6908ZZ is a single-row deep groove ball bearing with double metal shields (ZZ) – measuring 40mm bore x 62mm outside diameter x 12mm width.
Load ratings: dynamic 17.1 kN (Cr) and static 9.95 kN (C0r) – fatigue load limit 0.570 kN. Limiting speed 11000 rpm with grease lubrication and 13000 rpm with oil lubrication. Minimum fillet radius 0.6mm.
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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