Deep Groove Ball Bearing 6904-2RS Premium Seal Bearings ABEC3 (20mmx37mmx9mm), Chromium Steel, for Industrial Machine, Power Tools and Mechanical Equipment 2PCS

["Product Specification: 6904-2RS Sealed Bearings, 2 pieces included per package for replacement and maintenance needs","Precision Dimensions: 1.457 inch outer diameter, 0.787 inch inner diameter, 0.354 inch height with ABEC tolerance 3 (P6) and Z1 noise level for reliable performance","Double Seal Protection: Double seal design effectively saves grease and prevents impurities from entering, suitable for machines with sufficient oil where protective covers on both sides prevent entry of grease and contaminants","Durable Construction Material: Bearing made of chromium steel with stamped steel shell, featuring deep and continuous raceway grooves that form tight expansion with balls to withstand bidirectional radial load and axial load","Versatile Application Range: Widely used in industrial machines, motorcycles, automobiles, power tools and mechanical equipment across various fields","Pre-Lubricated Design: Features double rubber seals working together with pre-lubrication to protect internal chrome steel bearing components and prevent impurities from entering the bearing"]