The 6004-2RS is a high-grade, single-row radial ball bearing designed to supply dependable operational stability and efficient friction reduction across medium-duty setups. Distinct from open configuration components, this unit utilizes dual-sided synthetic rubber contact closures (2RS) to forge an impenetrable physical boundary against ambient moisture, particulate matter, and fine debris while securely sealing the internal lubricant. Complying with standard metric scaling—featuring a 20 mm bore diameter, 42 mm outer diameter, and 12 mm width—the 6004-2RS stands as a versatile mechanical assembly for compact power tools, light vehicle hubs, and household appliances.