NEW High Quality Hybrid Ceramic 440C Stainless Steel Ball Bearings.

Bearings specified as 2OS are ABEC-7 Orange Seal.
Bearings specified as ZZ are ABEC-7 Metal Shields.
Bearings specified as Open are ABEC-7 without Shields or Seals.

Features: ABEC-7 tolerances, Grade 5 Si3N4 ceramic balls, and aircraft grade 440C stainless steel construction, makes these the closest precision, highest quality and longer lasting bearings we have to offer. Supplied Lube Dry, with Grease, or Oil.

Benefits Include:

- Greater Precision, Efficiency and Speed capabilities.
- Minimal time to reach peak spinning speed.
- Increase in velocities, running distance and accuracy.
- Great overall improvement in smoothness.