6004-2RS Sealed Ball Bearings, the inner diameter is 20mm, outer diameter is 42mm and the width is 12mm, Bearings are made of Chrome Steel, each bearing has 2 Blue Rubber Seals to protect the bearing from dust or any possible contamination, also bearings are pre-lubricated with grease, Bearings are packed 10 bearings in one plastic tube.

• Item: 6004-2RS Ball Bearings
• Type: Deep Groove Ball Bearings
• Material: Chrome Steel
• Closures: 2 Rubber Seals
• Lubrication: Self Lubricated (Grease)
• Dimensions: 20mm x 42mm x 12mm/Metric
• ID (inner diameter)/Bore: 20mm
• OD (outer diameter): 42mm
• Width/Height/thickness: 12mm
• Size: 20 x 42 x 12 mm
• Dynamic load rating Cr: 9,400 N
• Static load rating Cor: 5,000 N
• Limiting Speed:
  • Grease Lubrication: 11,000 RPM
• Quantity: 10 Bearings
• Packing: 10 bearings packed individually each in a High density plastic bag.
• MARKING: 6004RS
• Equal: 6004-2RS1
• Fits: Athete Upgrade
• Equal: 6004-2RS1 & 6004-2RZ