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KOYO 6008ZZC3 Deep Groove Ball Bearings
KOYO 6008ZZC3 single-row deep groove ball bearing – shielded (zz). Bore 40mm x OD 68mm x width 15mm. Dynamic load rating 20.9 kN. C3 internal clearance.
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| Brand | Koyo JTEKT |
|---|---|
| Bearing Type | Deep Groove Ball Bearings |
| Series | 6008 |
| Inner Diameter (Bore) | 40 mm |
| Outer Diameter | 68 mm |
| Width | 15 mm |
| Seal Type | ZZ |
| Material | Chrome Steel (AISI 52100) |
| Clearance | C3 |
| Dynamic Load Rating (Cr) | 20900 N (20.9 kN) |
| Static Load Rating (C₀) | 11500 N |
| Limiting Speed (Grease) | 10000 rpm |
| Limiting Speed (Oil) | 12000 rpm |
| Fillet Radius (r min) | 1 mm |
| Fatigue Load Limit (Cu) | 0.690 kN |
| Weight | 0.192 kg |
The KOYO 6008ZZC3 is a single-row deep groove ball bearing with double metal shields (ZZ) – measuring 40mm bore x 68mm outside diameter x 15mm width.
Load ratings: dynamic 20.9 kN (Cr) and static 11.5 kN (C0r) – fatigue load limit 0.690 kN. Limiting speed 10000 rpm with grease lubrication and 12000 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.
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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