Features: Optimized inner parameters, siutable for high speed inner cylindrical gringding.

A. Cantact angle: 15°

B. Cages: Outer ring guided phenolic resin cage (no mark)

C. Ball material: Steel (no mark), ceramic(HQ1)

D. only p2, p4 for high precision series.

E. High and super high speed capacity, suitable for rigid preload and oil mist/air lubrication.

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