R720ZZ Shielded Ball Bearing, this is a popular size that could be used in many RC Cars and Trucks, Bearings are made of Chrome Steel, each bearing has 2 metal shields to protect the bearing from dust or any possible contamination, also bearing is pre-lubricated with grease.

• Item: R720ZZ Ball Bearing
• Type: Deep Groove Ball Bearing
• Closures: Metal Shields
• Lubrication: Self Lubricated (Grease)
• Size: 2mm x 7mm x 3.5mm
• Inner Diameter: 2mm
• Outer Diameter: 7mm
• Width: 3.5mm
• Quantity: One Bearing
• Dynamic load rating Cr: 390 N
• Static load rating Cor: 130 N
• Limiting Speed:
  • Grease Lubrication: 67,000 RPM