6304 Open Deep Groove Ball Bearing For Internal Machinery & Gearboxes | 20×52×15 mm

The 6307-2RS is a robust, single-row radial bearing designed for demanding environments where both high load capacity and superior sealing are critical. Featuring a 35 mm bore, 80 mm outer diameter, and 21 mm width, this 63-series bearing is equipped with contact rubber seals (2RS/RS) on both faces. These reinforced seals act as a physical barrier against liquid splashes and fine abrasive dust, ensuring the internal raceways remain pristine during heavy-duty operation in outdoor or industrial settings.

The 6307 is a robust single-row deep groove ball bearing engineered for medium-duty rotating equipment that demands consistent performance under continuous load. Built to the ISO 63 medium series, this component balances a 35 mm bore with a 21 mm cross-section, making it a preferred choice for industrial drives, conveyor systems, and heavy-duty electric motors. Welink Bearing manufactures this series to strict dimensional tolerances, ensuring reliable operation in demanding mechanical environments where uptime and load capacity are critical.

The B17-99-2RS is a specialized, heavy-duty single-row deep groove ball bearing tailored predominantly for high-stress automotive electrical systems and demanding industrial components. Recognized for its unique, wider cross-section relative to standard bearings, this model excels at absorbing severe belt tensions and radial loads. Equipped with dual advanced Nitrile Butadiene Rubber (NBR) contact seals, it effectively isolates the internal rolling elements from engine grime, road salt, and moisture. Boasting a 17mm bore, 52mm outer diameter, and a robust 17mm width, the B17-99-2RS is the industry benchmark for rebuilding alternators and high-output generators.

The 6314-2RS is a robust, heavy-series metric deep groove ball bearing built specifically to endure demanding industrial environments and high-load applications. Equipped with heavy-duty dual contact rubber seals (2RS), this model provides superior defense against moisture, dirt, and heavy particulate contamination. Measuring 70 mm in the bore, 150 mm in outer diameter, and 35 mm in width, the 6314-2RS is an indispensable mechanical component for large-scale electric motors, heavy automotive transmissions, and rugged agricultural machinery requiring maintenance-free reliability.

The 6310-2RS is a robust, medium-series deep groove ball bearing specifically engineered to accommodate substantial radial and axial loads in demanding industrial environments. Unlike miniature or thin-wall models, this heavy-duty bearing features thick cross-sections and large rolling elements, making it an absolute powerhouse for rigorous applications. Outfitted with dual contact rubber seals (2RS), it forms an impenetrable barrier against harsh contaminants, water ingress, and abrasive dust. With standardized metric dimensions—a 50 mm bore, 110 mm outer diameter, and 27 mm width—the 6310-2RS delivers unyielding structural integrity for heavy machinery, automotive transmissions, and large-scale industrial motors.

The 6309-2RS is a high-end, mid-sized heavy metric deep groove ball bearing engineered to deliver balanced load capacities and exceptional structural rigidity in harsh working conditions. Fitted with dual-lip synthetic rubber contact seals (2RS), this bearing offers an impermeable barrier against airborne grit, moisture, and fine particulates. Featuring a 45 mm bore, 100 mm outer diameter, and 25 mm width, the 6309-2RS represents the ideal mechanical solution for medium-to-large rotating machinery, industrial pumping systems, and heavy-duty electric power drives requiring long-term, maintenance-free operation.

The 6308-2RS is a robust, single-row deep groove ball bearing engineered to deliver superior load-carrying capacity and extended service life in demanding environments. Equipped with tight-fitting, dual contact rubber seals (2RS), this model provides an impenetrable barrier against moisture, heavy dust, and external contaminants while securely retaining its factory-filled lubrication. Built to exact metric dimensions—a 40 mm bore, 90 mm outer diameter, and 23 mm width—the 6308-2RS is the definitive mechanical solution for medium-to-heavy industrial machinery, automotive hubs, and high-torque electric motors.

The 6306-2RS is a robust, high-precision single-row deep groove ball bearing engineered for exceptional endurance in medium-to-heavy mechanical setups. Unlike metal-shielded models, this bearing is equipped with synthetic rubber seals (2RS) on both sides, which are securely bonded to the outer ring to form a reliable contact seal against the inner ring. This design offers superior defense against water splashes, moisture, and fine dust particles while effectively retaining the internal factory grease. Featuring standard metric dimensions—a 30 mm bore, 72 mm outer diameter, and 19 mm width—the 6306-2RS serves as a highly dependable component for electric motors, agricultural equipment, and heavy industrial machinery.