Dental high－speed turbine hand piece.  

Dental high－speed turbine hand piece used si3n4 ball bearing it’s long life and no voice

These bearings are of the highest quality and precision. They are ideal for use in dental handpieces, medical devices, and surgical tools. Most of the bearings feature Grade 3 balls, roundness control exceeding ABEC 7, and surface finish of 1RA or better. This effectively prolongs the bearing's useful life, minimizing maintenance and improving the overall performance of you equipment.