6300 Deep Groove Ball Bearings

6300 Deep Groove Ball Bearings
Part Number 6300 Ball Number 7
d 10 Ball Size 6.350
D1 35 Dynamic Load Co(N) 8100
B 11 Static Load Cor(N) 3450
R 0.6 Grease Speed 22000
Weight(Kg) 0.053 Oil Speed 27000

6300 Deep Groove Ball Bearing | Open, ZZ, 2RS High-Speed Mini Bearings

The 6300 deep groove ball bearing is a classic high-precision miniature bearing in the 6300 series, featuring optimized raceway structure and refined rolling element layout for stable low-friction, ultra-quiet high-speed operation. This single-row deep groove ball bearing delivers excellent dimensional stability and reliable anti-fatigue performance, perfectly adapting to long-term light and medium cyclic loads of miniature precision electromechanical equipment. With ultra-compact size, lightweight design and high versatility, it serves as a fundamental core rotary component for micro transmission systems and precision automation devices. The 6300 series comes with three industry-standard configurations: open type, 6300ZZ double metal shield type and 6300-2RS double rubber sealed type. Five industrial-grade material options fully meet economical, sanitary, wear-resistant and anti-corrosion demands for diverse miniature industrial working scenarios.

6300 Open / ZZ / 2RS Structural Features

6300 Open Type: The unsealed open structure enables unobstructed air circulation and efficient heat dissipation during continuous high-speed operation. It supports convenient grease replacement and daily routine cleaning without generating extra rotational resistance. Ideal for clean, dry indoor workshops and fully enclosed precision micro machinery, it maintains stable running accuracy and consistent operational performance during long-cycle light-load operation.

6300ZZ Double Metal Shields: Equipped with dual-sided non-contact steel shields, this professional dust-proof bearing effectively blocks fine dry dust, tiny floating particles and micro workshop debris. The non-contact design preserves original high-speed precision and rotational smoothness with minimal friction loss. Featuring durable performance and outstanding cost efficiency, 6300ZZ bearings are widely applied in dry micro automation equipment, small precision motors, consumer electronics and general miniature transmission systems.

6300-2RS Double Rubber Seals: This fully sealed variant adopts double-sided contact rubber seals to comprehensively isolate moisture, splash water, oil mist and corrosive fine dust. It tightly locks internal lubricating grease to prevent leakage and aging, enabling long-term maintenance-free operation. It perfectly adapts to humid, dusty and mild outdoor working conditions for miniature precision mechanical equipment.

6300 Bearing Material Performance

Carbon Steel: Standard cost-effective industrial material with uniform hardness and stable anti-fatigue properties. It provides reliable wear resistance and smooth high-speed rotation for conventional light-load miniature equipment, delivering excellent cost performance for mass consumer electronics and general industrial applications.

304 Stainless Steel: Food-grade stainless steel with superior oxidation and rust resistance. It prevents surface corrosion and precision degradation in humid and open environments, ideal for food processing micro devices, sanitary equipment and daily precision miniature machinery.

316 Stainless Steel: Premium marine-grade corrosion-resistant material with strong tolerance to acid, alkali and salt spray. It withstands mild chemical erosion and coastal high humidity, suitable for marine micro equipment, sanitary devices and light chemical precision instruments.

420 Stainless Steel: High-toughness martensitic stainless steel balancing moderate corrosion resistance and high surface hardness. It features stable wear and impact resistance, ensuring consistent dimensional accuracy during long-cycle continuous operation of miniature precision parts.

440 Stainless Steel: Ultra-high hardness stainless steel with top-tier abrasion resistance and structural stability. It maintains precise and stable operation under slight wear and complex corrosive environments, customized for high-end electronic and industrial precision miniature equipment.

Core Advantages And Industrial Applications

The 6300 deep groove ball bearing features ultra-compact lightweight structure, ultra-low noise, vibration-free and stable high-speed performance. Three diversified sealing structures and five professional material grades fully cover economical, anti-rust, wear-resistant and anti-corrosion miniature application scenarios. It is extensively used in micro drive motors, precision testing instruments, consumer electronics, smart device accessories, small household appliances, miniature medical devices, automated precision components and food processing micro machinery, providing durable, low-maintenance and high-efficiency precision rotation solutions for modern light-load miniature mechanical systems.

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