6302 Deep Groove Ball Bearings
| 6302 Deep Groove Ball Bearings | |||
|---|---|---|---|
| Part Number | 6302 | Ball Number | 7 |
| d | 15 | Ball Size | 7.938 |
| D1 | 42 | Dynamic Load Co(N) | 11400 |
| B | 13 | Static Load Cor(N) | 5400 |
| R | 1 | Grease Speed | 18000 |
| Weight(Kg) | 0.082 | Oil Speed | 22000 |
6302 Deep Groove Ball Bearing | Open, ZZ, 2RS High-Speed Bearings
The 6302 deep groove ball bearing is a high-precision medium miniature model in the 6300 series, featuring optimized raceway design and upgraded rolling element configuration for improved load capacity and structural stability. This single-row deep groove ball bearing delivers reliable dimensional accuracy, excellent anti-fatigue performance and stable low-friction operation, supporting long-term high-speed rotation under light and medium cyclic loads. Slightly upgraded from the 6301 model, it balances compact size and enhanced bearing toughness, serving as a core rotary component for micro electromechanical and precision automation systems. The 6302 series includes three standard configurations: open type, 6302ZZ double metal shield type and 6302-2RS double rubber sealed type, with five industrial-grade materials to adapt to economical, sanitary, wear-resistant and anti-corrosion industrial environments.
6302 Open / ZZ / 2RS Structural Features
6302 Open Type: The unsealed open structure enables unobstructed air circulation and efficient heat dissipation during continuous high-speed operation. It allows convenient grease replacement and routine maintenance without generating extra rotational resistance. Ideal for clean, dry indoor workshops and fully enclosed precision machinery, it maintains stable running accuracy and consistent performance during long-cycle light and medium-load operation.
6302ZZ Double Metal Shields: Equipped with dual-sided non-contact steel shields, this dust-proof bearing effectively blocks fine dry dust, floating micro particles and workshop debris. The non-contact design preserves original high-speed precision and rotational smoothness with minimal friction loss. Featuring reliable durability and outstanding cost performance, 6302ZZ bearings are widely applied in dry automation equipment, small industrial motors, precision electronics and general miniature transmission systems.
6302-2RS 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, realizing long-term maintenance-free operation. It perfectly adapts to humid, dusty and mild outdoor working conditions for precision electromechanical equipment.
6302 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 precision 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 equipment, sanitary machinery and daily precision devices.
316 Stainless Steel: Premium marine-grade corrosion-resistant material with strong acid, alkali and salt spray tolerance. It withstands mild chemical erosion and coastal high humidity, suitable for marine auxiliary equipment, sanitary processing devices and 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 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 severe wear and complex corrosive environments, customized for high-end industrial and electronic precision equipment.
Core Advantages And Industrial Applications
The 6302 deep groove ball bearing features compact structure, ultra-low noise, vibration-free operation and stable high-speed performance. Three diversified sealing structures and five professional material grades fully cover economical, anti-rust, wear-resistant and anti-corrosion application scenarios. It is extensively used in micro drive motors, precision instruments, consumer electronics, smart device accessories, small household appliances, miniature medical devices, automated precision components and food processing machinery, providing durable, low-maintenance and high-efficiency precision rotation solutions for modern light and medium-load precision mechanical systems.
