They went in great!! Fit perfectly and they feel so nice when gliding down the road. Super smooth, zero resistance I also like that they're red.
Nachi 6004 -2NSE9C3 Deep Groove Ball Bearing - 20 mm ID, 42 mm OD, 12 mm Width, C3
1 (248) 429-9073
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The Nachi 6004 -2NSE9C3 pairs a 20 mm bore with a 42 mm outside diameter and 12 mm width. Rubber contact seals ride on the inner ring land at both sides, giving a far tighter barrier against water, dust and washdown than a shield can manage, at the cost of a little more running torque. The grease is sealed in for the life of the bearing. C3 clearance offsets the fit-up and thermal losses that would otherwise leave the bearing preloaded, the cage is sheet steel, and the assembly is rated from -20 to +130 degrees C. Well suited to dirty or damp duty where relubrication is impractical.
| Bore Diameter | 20 mm |
| Outside Diameter | 42 mm |
| Width | 12 mm |
| Ball rows | Single row bearing |
| Bore | Cylindrical bore |
| Cage | Sheet steel cage |
| Clearance | Slightly increased radial clearance |
| Current insulation | No current insulation |
| Material | Standard bearing steel |
| Material of rolling elements | Standard bearing steel |
| Outer ring | Without flange/groove |
| Seal | Contact seal on both sides |
| Temperature range | -20 to +130 °C |
| Tolerance class | Tolerance class P0/PN2 / ABEC 1 |
| Product Net Weight | 0.07 |