Developed for mechanical assemblies utilizing fractional inch shaft dimensions, the R18-ZZ is a high-grade single-row deep groove ball bearing built for sustained operational efficiency. Equipped with dual-sided steel shields (ZZ), it provides exceptional protection against debris while keeping the pre-applied industrial grease safely locked inside. Since these metallic shields do not make physical contact with the inner ring, the R18-ZZ minimizes frictional resistance and torque spikes, serving as an optimal solution for 1.125-inch shafts in electric motors, power transmissions, and manufacturing machinery.