Precision Ground Ball Bearing Raceway Ring from United States
Outer race with superfinished raceway surface (RMS 8-12 μin) for miniature ball bearings in semiconductor crystal pullers. Critical for maintaining wafer boule diameter precision during grinding processes, ensuring high-quality output.
Duty Rate — United States → Canada
0%
Import Tips
• Ensure the raceway ring is not part of a complete bearing
• Provide technical drawings to CBSA for accurate classification
• Check if the product qualifies for duty-free treatment under certain programs