High quality and Speed Star Handpiece Dental Bearing ABEC-7 Bearing that fits most of the Star Handpiece applications. Bearing is closed from one side and it is Stainless Steel bearing with solid SI3N4 Ceramic Balls, bearing is one side Metal shield and Bearing is made of Stainless Steel and has Solid Ceramic balls Si3N4 (Silicon Nitride), the cage is made of Torlon for lowest fricion and highest speed.This bearing can go up to 450,000 RPM with no problem.

• Item: High Speed Ball Bearing
• Type: Deep groove ball bearings
• Bearings: Stainless Steel
• Quality: ABEC-7
• Closures: One Metal Shield
• Balls: Si3N4 Solid Ceramic
• Balls retainer: Torlon
• Speed: 400,000 RPM
• Quantity One Bearing
• Fits: Star Concentric Handpiece