4 x 8 x 2 ABEC-3 Stainless Steel Ball Bearings, Bearings are made of Stainless Steel, inner diameter is 4mm, outer diameter is 8mm, and width is 2mm.

• Item: 4 x 8 x 2 Ball Bearings
• Type: Deep Groove Ball Bearings
• Shields: Open
• Material: Stainless Steel
• Size: 4mm x 8mm x 2mm
• Inner Diameter: 4mm
• Outer Diameter: 8mm
• Width: 2mm
• Quantity: 10 Bearings
• Dynamic load rating Cr: 400 N
• Static load rating Cor: 140 N
• Limiting Speed:
  • Grease Lubrication: 61,000 RPM
  • Oil Lubrication: 73,000 RPM
• Packing: 10 bearings in One plastic tube
• KOYO: ML4008Z
• NSK: MR84
• NMB: L-840