
High Speed 400000rpm Sr144 Dental Ceramic Bearing Dental Drill Handpiece Hybrid Ceramic Dental Bearing for NSK - W&H Bearing. Ultra-High Speed Capability: Designed for speeds up to 400,000 RPM with minimal heat generation and wear. Hybrid Ceramic Construction: Features steel rings with silicon nitride balls for 60% lighter weight and reduced centrifugal force. Superior Hardness: Hardness rated at HRC60-62 for greatly extended service life compared to standard steel. High Precision Grades: Manufactured to ABEC 7 or ABEC 9 precision grades to ensure low vibration and noise. Sterilization Compatibility: Withstands repeated autoclaving cycles at high temperatures and pressures without degrading. Customizable Clearance: Available in C2, C0, and C3 clearance options to suit specific operational needs. OEM Service Support: Full OEM service available for customized bearing specifications and packaging. Miniature Size Options: Compact outer diameters ranging from 4mm to 7mm for use in small dental handpieces.