Super Precision Miniature Bearings
Characteristics: Inner diameter <10mm (MTWB’s smallest 0.6mm); ABEC 7-9 tolerances; ultra-low runout.
Advantages: Lifetime 3-5x longer than standard miniature bearings in medical application for example handpieces (turbines) due to optimized raceway waviness. Achievable 500,000 rpm vs. the standard of 300,000 rpm.
Technical Ceiling: Running accuracy <0.5 µm bore deviation; max speed 1.2 million DN (bore mm × rpm); noise level <20 dB.
Caution: Requires contamination-free assembly. Standard shaft fit (h5) is too loose – use tighter js4 fit. Lubricant quantity must be <1% of free space or torque spikes occur.
High-accuracy, low-friction bearings for ultra-compact applications. Ideal for medical devices, aerospace instruments, and high-speed spindles. Features ABEC 7/9 tolerances, low vibration, and extended lifespan. Optimized for limited radial space and demanding rotational precision.
