6306 Deep Groove Ball Bearings
| 6306 Deep Groove Ball Bearings | |||
|---|---|---|---|
| Part Number | 6306 | Ball Number | 8 |
| d | 30 | Ball Size | 12.7 |
| D1 | 72 | Dynamic Load Co(N) | 27000 |
| B | 19 | Static Load Cor(N) | 15200 |
| R | 1.1 | Grease Speed | 11000 |
| Weight(Kg) | 0.350 | Oil Speed | 14000 |
6306 Deep Groove Ball Bearing | Open, ZZ, 2RS High-Speed Bearings
The 6306 deep groove ball bearing is a robust mid-to-large size precision component in the 6300 series, designed with enlarged rolling elements and reinforced thick raceway structure for boosted load capacity and structural rigidity. This single-row deep groove ball bearing delivers excellent radial and axial load resistance, superior anti-fatigue stability and low-friction operation, supporting long-term low-noise, high-speed rotation under continuous medium and heavy cyclic loads. Optimized for balanced performance and durability, it acts as a critical core rotary part for industrial precision machinery and electromechanical automation systems. The 6306 series includes three standard industry configurations: open type, 6306ZZ double metal shield type and 6306-2RS double rubber sealed type, with five industrial-grade materials to fit economical, sanitary, wear-resistant and corrosive complex industrial environments.
6306 Open / ZZ / 2RS Structural Features
6306 Open Type: The unsealed open structure enables unobstructed air circulation and efficient heat dissipation, effectively preventing thermal accumulation during prolonged high-speed operation. It allows easy grease replenishment and routine daily maintenance without generating extra rotational resistance. Suited for clean, dry indoor workshops and fully enclosed precision equipment, it maintains stable running accuracy and consistent performance during long-cycle medium and heavy-load operation.
6306ZZ Double Metal Shields: Equipped with dual-sided non-contact steel shields, this heavy-duty 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 outstanding durability and cost performance, 6306ZZ bearings are widely applied in dry automated production lines, medium and large industrial motors, precision transmission systems and general heavy electromechanical devices.
6306-2RS 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 securely locks internal lubricating grease to prevent leakage, oxidation and aging, enabling long-term maintenance-free operation. It perfectly adapts to humid, dusty and mild outdoor harsh working conditions for industrial precision mechanical equipment.
6306 Bearing Material Performance
Carbon Steel: High cost-performance standard industrial material with uniform hardness and stable anti-fatigue properties. It delivers reliable wear resistance and smooth high-speed rotation for conventional medium-heavy load machinery, ideal for mass industrial and commercial economical applications.
304 Stainless Steel: Food-grade stainless steel with excellent oxidation and rust resistance. It avoids surface corrosion and precision degradation in humid and open environments, perfect for food processing machinery, sanitary equipment and daily precision mechanical devices.
316 Stainless Steel: Premium marine-grade corrosion-resistant material with strong acid, alkali and salt spray tolerance. It withstands 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 heavy-load operation.
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 heavy-duty precision equipment.
Core Advantages And Industrial Applications
The 6306 deep groove ball bearing features upgraded heavy-load capacity, rigid integrated structure, ultra-low noise and long-lasting high-speed performance. Three diversified sealing structures and five professional material grades fully cover economical, anti-rust, wear-resistant and anti-corrosion industrial scenarios. It is extensively used in industrial drive motors, automation transmission equipment, precision testing instruments, household appliances, miniature medical devices, food processing machinery and general heavy-duty mechanical systems, providing stable, low-maintenance and high-efficiency precision rotation solutions for modern medium and heavy-load industrial equipment.
