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KOYO 6910ZZC3 Deep Groove Ball Bearings
KOYO 6910ZZC3 single-row deep groove ball bearing – shielded (zz). Bore 50mm x OD 72mm x width 12mm. Dynamic load rating 18.2 kN. C3 internal clearance.
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| Brand | Koyo JTEKT |
|---|---|
| Bearing Type | Deep Groove Ball Bearings |
| Series | 6910 |
| Inner Diameter (Bore) | 50 mm |
| Outer Diameter | 72 mm |
| Width | 12 mm |
| Seal Type | ZZ |
| Material | Chrome Steel (AISI 52100) |
| Clearance | C3 |
| Dynamic Load Rating (Cr) | 18200 N (18.2 kN) |
| Static Load Rating (C₀) | 11700 N |
| Limiting Speed (Grease) | 9000 rpm |
| Limiting Speed (Oil) | 11000 rpm |
| Fillet Radius (r min) | 0.6 mm |
| Fatigue Load Limit (Cu) | 0.640 kN |
| Weight | 0.133 kg |
The KOYO 6910ZZC3 is a single-row deep groove ball bearing with double metal shields (ZZ) – measuring 50mm bore x 72mm outside diameter x 12mm width.
Load ratings: dynamic 18.2 kN (Cr) and static 11.7 kN (C0r) – fatigue load limit 0.640 kN. Limiting speed 9000 rpm with grease lubrication and 11000 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.
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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