6208 Deep Groove Ball Bearings
| 6208 Deep Groove Ball Bearings | |||
|---|---|---|---|
| Part Number | 6208 | Ball Number | 9 |
| d | 40 | Ball Size | 12.7 |
| D1 | 80 | Dynamic Load Co(N) | 29500 |
| B | 18 | Static Load Cor(N) | 18000 |
| R | 1.1 | Grease Speed | 11000 |
| Weight(Kg) | 0.368 | Oil Speed | 14000 |
6208 Deep Groove Ball Bearing | Open, ZZ, 2RS High-Speed Bearings
The 6208 deep groove ball bearing is a high-performance medium-heavy duty model in the 6200 series, optimized and upgraded from the 6207 version with enlarged rolling elements and thickened integrated raceway structure. This single-row deep groove ball bearing features upgraded radial and axial load capacity, enhanced structural rigidity and excellent anti-fatigue performance, supporting stable low-friction, low-noise high-speed operation under long-term continuous heavy cyclic loads. It balances compact structural size and strong load-bearing toughness, serving as a core rotary transmission component for medium and large electromechanical automation equipment. The 6208 series offers three mainstream configurations: open type, 6208ZZ double metal shield type and 6208-2RS double rubber sealed type, with five industrial-grade materials to adapt to economical, sanitary, high-wear and corrosive complex industrial working environments.
6208 Open / ZZ / 2RS Structural Features
6208 Open Type: The unsealed open structure achieves unobstructed air circulation and efficient heat dissipation, effectively solving heat accumulation during long-term high-speed operation. It supports quick lubricant replacement and daily routine maintenance without increasing extra rotational resistance. Ideal for clean, dry indoor workshops and fully enclosed precision machinery, it maintains stable running accuracy and consistent operational performance under long-cycle heavy-load working conditions.
6208ZZ Double Metal Shields: Equipped with dual-sided non-contact steel shields, this professional dust-proof bearing effectively isolates fine dry dust, floating micro particles and workshop debris. The non-contact design retains original high-speed stability and rotational precision with minimal friction loss. With reliable durability and excellent cost performance, it is widely applied in dry automated production lines, industrial heavy-duty motors, precision transmission equipment and general electromechanical devices.
6208-2RS Double Rubber Seals: This fully sealed variant adopts double-sided contact rubber seals to achieve comprehensive isolation from moisture, splash water, oil mist and corrosive dust. It tightly locks internal lubricating grease to prevent leakage, oxidation and aging, realizing long-term maintenance-free operation. It perfectly adapts to humid, dusty, splash-prone and mild outdoor harsh working environments.
6208 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 heavy-load mechanical equipment, delivering excellent cost performance for mass industrial and civilian conventional applications.
304 Stainless Steel: Universal food-grade stainless steel with outstanding anti-oxidation and rust resistance. It avoids surface corrosion and precision attenuation in humid and open environments, suitable for food processing equipment, light industry and daily precision mechanical devices.
316 Stainless Steel: Premium marine-grade corrosion-resistant material with strong tolerance to acid, alkali and salt spray. It resists mild chemical erosion and coastal high-humidity conditions, ideal for sanitary processing equipment, marine auxiliary devices and chemical precision instruments.
420 Stainless Steel: High-toughness martensitic stainless steel balancing moderate corrosion resistance and high surface hardness. It features superior wear and impact resistance, maintaining stable dimensional accuracy during long-cycle heavy-load continuous operation.
440 Stainless Steel: Ultra-high hardness stainless steel with top-tier abrasion resistance and structural stability. It sustains 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 6208 deep groove ball bearing features superior heavy-load capacity, ultra-high structural stability, ultra-low noise and durable 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 heavy-duty drive motors, automated transmission systems, precision instruments, large household appliances, food processing machinery, medical precision devices and outdoor industrial equipment, providing stable, low-maintenance and high-efficiency precision rotation solutions for modern medium-heavy duty mechanical systems.
