Ceramic Hybrid Dental handpiece ABEC-7 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.

• Item: SR144 Dental handpiece Ball Bearing
• Type: Deep groove ball bearing
• Material: Stainless Steel
• Quality: ABEC-7
• Closures: Open
• Balls: Si3N4 Ceramic (Silicon Nitride)
• Balls retainer: Torlon
• Speed: 400,000 RPM
• Size: 3.175 x 6.35 x 2.38 mm/Metric
• Dimension: 1/8" x 1/4" x 3/32" inches
• Quantity: One Bearing