MR52 is an Open Miniature Ball Bearing, MR52 Bearing has an inner diameter of 2mm, MR52 small Bearing outer diameter is 5mm and MR52 Bearing width is 2mm, MR52 Bearing is made of Chrome Steel, 52100 is a high carbon, chromium containing low alloy steel, heat treatment and hardening of 52100 alloy steels will get you 60 Rockwell hardness and very common in bearings.

• Item: MR52 Bearing
• Type: Miniature Bearing
• MR52 Dimensions: 2mm x 5mm x 2mm
• Size: 2 x 5 x 2 mm
• Closures: Open
• Material: 52100 Chrome Steel
• Bearing Inner Diameter: 2mm
• Bearing Outer Diameter: 5mm
• Bearing Width: 2mm
• Standard: Metric
• Quality: Standard Precision
• Quantity: One Bearing