NSK Angular Contact Ball Bearings - 72 Series High Speed Angular Contact Ball Bearing NBC’s specification says these sleeves

NBC’s specification says these sleeves cover shaft sizes from ~25 mm to ~500 mm

Cannot support axial loads (similar to NN series)

Product Overview:Micro Grain Solid Carbide Reamers are precision-engineered tools designed for high-accuracy hole finishing in hardened steels

and contaminants

and maintenance-free (lubricated for life) operation under standard conditions

NSK Angular Contact Ball Bearings - 72 Series High Speed Angular Contact Ball Bearing NBC’s specification says these sleevesNSK Angular Contact Ball Bearings 72 Series High Performance Bearings for Precision and Speed The NSK 72 Series Angular Contact Ball Bearings are designed to deliver high radial and axial load capacity, excellent speed performance, and superior rigidity. With a 30 contact angle, the 72 series is optimized for applications requiring strong axial load support in one direction while maintaining smooth, high speed rotation. Manufactured using NSKs