62304 Deep Groove Ball Bearings

62304 Deep Groove Ball Bearing | Open, ZZ, 2RS High-Speed Bearings

The 62304 deep groove ball bearing is a high-performance thick-wall bearing in the 62300 series, upgraded with larger bore size and enhanced internal roller structure compared to the 62303 model. It delivers improved radial and axial load capacity, stronger impact resistance and outstanding high-speed stability, supporting low-noise continuous operation under medium-heavy loads. This versatile single-row ball bearing is widely used for industrial power transmission and precision rotating equipment. It is available in three mainstream configurations: 62304 open type, 62304ZZ metal shield type and 62304-2RS rubber sealed type, with multiple material options to suit standard and harsh industrial environments.

62304 Open / ZZ / 2RS Structural Features

62304 Open Type: Featuring a fully open unshielded structure, this base model offers maximum heat dissipation efficiency and unobstructed lubricant flow. It allows quick grease refilling and easy routine maintenance, with no extra friction from sealing components. Ideal for clean, dry indoor machinery and fully enclosed equipment requiring long-cycle high-speed operation with regular upkeep schedules.

62304ZZ Double Metal Shields: Designed with dual-sided non-contact steel shields, this dust-proof variant effectively blocks dry dust, fine particles and floating workshop debris. The non-contact structure preserves original high rotational precision and minimizes running resistance, ensuring stable high-speed performance. Cost-efficient and reliable, it is perfect for dry production lines, automation systems and indoor medium-load transmission machinery.

62304-2RS Double Rubber Seals: Equipped with double-sided contact rubber seals, this fully sealed version provides comprehensive protection against moisture, splash water, oil contaminants and corrosive dust. It tightly retains internal lubrication to prevent grease leakage and pollution, achieving long-term maintenance-free operation. It is the best choice for outdoor, humid, dusty and dynamically changing working conditions.

62304 Bearing Material Specifications

Carbon Steel: The standard industrial-grade material for mass-produced 62304 bearings. It features uniform hardness, excellent wear resistance and stable rotational performance under medium-speed and heavy-load conditions. With superior cost performance and long fatigue life, it is the ideal solution for general industrial machinery and commercial electromechanical equipment.

304 Stainless Steel: Eco-friendly anti-rust stainless steel with excellent oxidation and atmospheric corrosion resistance. It effectively prevents surface rust and precision degradation in humid, outdoor and dusty environments, maintaining consistent operating accuracy. It is widely used for light industrial, food-grade and outdoor precision mechanical equipment.

316 Stainless Steel: Premium marine-grade corrosion-resistant material. It offers stronger acid, alkali and salt spray resistance than 304 stainless steel, tolerating mild chemical erosion and coastal high-humidity environments. It is specially applied in chemical processing, marine equipment and sanitary food production machinery.

Core Advantages And  Industrial Applications

The 62304 deep groove ball bearing features a reinforced thick-wall structure, upgraded load capacity and stable low-noise high-speed rotation. Three sealing types and three material grades fully cover economical, anti-rust and anti-corrosion application scenarios. It is extensively used in high-power industrial fans, large water pumps, heavy-duty packaging machines, automated production equipment, outdoor engineering machinery, food processing devices and light chemical transmission systems, delivering durable, low-maintenance and cost-effective precision rotation solutions for modern medium-heavy industrial mechanical systems.