440C Stainless Steel Ball Bearings with ZZ Metal Shields – ABEC-9 Precision Unlock corrosion-resistant reliability and ultra-smooth, high-speed rotation with our premium 440C stainless steel ball bearings.

•440C Stainless Steel, 58HRC Hardness 

Rings and balls crafted from 440C stainless steel, hardened to 58HRC for excellent wear resistance and long service life. Weak magnetic response and general corrosion resistance ensure stable, reliable performance in humid or hygiene-sensitive environments.

•ZZ Double Stainless Steel Shields 

Non-contact metal shields on both sides effectively block dust and debris while retaining internal grease. Adds virtually no friction or heat, delivering lower starting torque and higher speed capability than rubber-sealed alternatives.

•ABEC-9 Ultra-High Precision 

Precision-ground to ABEC-9 tolerance standards with finely machined raceways for superior rotational accuracy, ultra-low noise, and minimal vibration — smooth and stable even at high RPM.

•Grease Lubrication & C0 Clearance

Pre-filled with premium grease and built to C0 standard clearance for smooth, quiet, maintenance-free operation — ready to install directly out of the box.

•Versatile Applications 

Ideal for fishing reels, food processing equipment, kitchen appliances, medical instruments, and other compact precision machinery requiring high-speed, low-noise performance.