1.55 x 4 x 2.5 Shielded Ball Bearing, each bearing has 2 metal shields to protect the bearing from dust or any possible contamination, inner diameter is 1.55mm, outer diameter is 4mm and width is 2.5mm.

• Item: 1.55 x 4 x 2.5 Ball Bearing
• Type: Deep Groove Ball Bearing
• Closures: 2 Metal Shields
• Dimensions: 1.55mm x 4mm x 2.5mm/Metric
• ID (inner diameter)/Bore: 1.55mm
• OD (outer diameter): 4mm
• Width/Height/thickness: 2.5mm
• Size: 1.55 x 4 x 2.5 mm
• Quantity: One Bearing
• Dynamic load rating Cr: 100 N
• Static load rating Cor: 30 N
• Limiting Speed:
  • Grease Lubrication: 130,000 RPM