684 Bearing Open 4x9x4 Miniature

684 Open Ball bearing, inner diameter is 4mm, outer diameter is 9mm and width is 4mm, made from durable 52100 alloy steel, commonly known as chrome steel.

• 684 Ball Bearing
• Deep groove ball bearing
• Closures: Open
• Dimensions: 4mm x 9mm x 4mm/Metric
• ID (inner diameter)/Bore: 4mm
• OD (outer diameter): 9mm
• Width: 4mm
• Size: 4 x 9 x 4 mm
• Quantity: 1 Bearing
• Dynamic load rating Cr: 640 N
• Static load rating Cor: 230 N
• Limiting Speed:
  • Grease Lubrication: 59,000 RPM
  • Oil Lubrication: 70,000 RPM