S6904-2RS Ball Bearing Si3N4 Hybrid Ceramic Premium ABEC-5 Inner Diameter - 1 3/4 inch (1.75") S6203ZZ bearing is sealed and

S6203ZZ bearing is sealed and self lubricated

UCFC206-20 FYH Bearing

and arrives pre-lubricated for instant use

🟢 Balls: Silicon nitride (Si₃N₄)

Width/Height/thickness=35mm

S6904-2RS Ball Bearing Si3N4 Hybrid Ceramic Premium ABEC-5 Inner Diameter - 1 3/4 inch (1.75") S6203ZZ bearing is sealed andS6904 2RS Sealed Ball Bearing 20x37x9 Premium ABEC 5 Quality with Si3N4 Ceramic Balls Silicon Nitride Balls 20mm x 37mm x 9mm S6904 2RS is double sealed, radial and deep groove ball bearing, S6904 2RS bearing is made from stainless steel with silicon nitride Ceramic Balls (Si3N4) and Nylon cage, S6904 2RS bearing is closed with rubber seals to protect the bearing from dust or any possible contamination, S6904 2RS bearing is sealed and self