9x17x4 ball bearing, this is a popular size that could be used in many RC Cars and Trucks, or any application that uses this size 9mm x 17mm x 4mm. Bearing is made of Chrome Steel.

• Item: 689 open
• Type: Deep groove ball bearings
• Closures: Open
• Size: 9mm x 17mm x 4mm
• Quantity: One Bearing
• Dynamic load rating Cr: 1,350 N
• Static load rating Cor: 660 N
• Limiting Speed:
  • Grease Lubrication: 39,000 RPM
  • Oil Lubrication: 46,000 RPM