SIRONA Dental Handpiece SR144K1TLZ1WN Ceramic Hybrid Dental handpiece ABEC-7 Angular Contact Ball Bearing. Bearing is made of Stainless Steel and has Solid Si3N4 Ceramic balls. Cage is made of Torlon for lowest friction, long life and highest speed. Bearing is closed from one side by one metal Shield. Bearing has a groove on the inner ring. Shield and outer ring is combine

• Item: SR144K1Z1 Dental handpiece Ball Bearing
• Type: Angular Contact with separate inner ring ball bearing
• Material: Stainless Steel
• Quality: ABEC-7
• Closures: One Shield,shield and outer ring is combined
• Balls: Si3N4 Ceramic (Silicon Nitride)
• Balls retainer: Torlon
• Speed: 400,000 RPM
• Size: 3.175 x 6.35 x 2.78 mm/Metric
• Dimension: 1/8" x 1/4" x 7/64"
• Quantity: One Bearing