626 Deep Groove Ball Bearings
| 626 Deep Groove Ball Bearings | |||
|---|---|---|---|
| Part Number | 626 | Ball Number | 7 |
| d | 6 | Ball Size | 3.5 |
| D1 | 19 | Dynamic Load Co(N) | 2600 |
| B | 6 | Static Load Cor(N) | 1050 |
| R | 0.3 | Grease Speed | 35000 |
| Weight(Kg) | 0.0081 | Oil Speed | 43000 |
626 Deep Groove Ball Bearing | Open, ZZ, 2RS High-Speed Mini Bearings
The 626 deep groove ball bearing is a high-precision miniature bearing in the 620 series, upgraded with optimized rolling elements and refined raceway structure for improved stability and load capacity compared to smaller micro bearings. This single-row deep groove ball bearing features compact dimensions, lightweight design, low friction and ultra-quiet high-speed operation, perfectly suited for light-load micro transmission systems and precision miniature machinery. Available in three standard configurations, including open type, 626ZZ double metal shield type and 626-2RS double rubber sealed type, it offers five industrial-grade material options to adapt to economic, sanitary, wear-resistant and corrosive working environments for diverse miniature precision equipment.
626 Open / ZZ / 2RS Structural Features
626 Open Type: Featuring a basic unsealed open structure, this model delivers unobstructed heat dissipation and smooth internal grease circulation with zero extra rotational resistance. It supports quick lubricant replacement and simple daily maintenance, ideal for clean, dry indoor environments and fully enclosed precision micro machinery. It maintains stable dimensional accuracy and consistent high-speed performance during long-cycle light-load continuous operation.
626ZZ 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 fine debris. The non-contact design preserves original high-speed stability and rotational precision without increasing operating friction. With reliable durability and excellent cost performance, it is widely applied in dry micro automation systems, small DC motors, precision electronics and general miniature transmission equipment.
626-2RS Double Rubber Seals: This fully sealed variant adopts double-sided contact rubber seals to achieve full isolation from 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 devices.
626 Bearing Material Performance
Carbon Steel: Standard cost-effective industrial material with uniform hardness and excellent anti-fatigue properties. It provides stable wear resistance and smooth high-speed rotation for conventional light-load miniature equipment, delivering optimal cost performance for mass civilian electronics and general industrial applications.
304 Stainless Steel: Universal food-grade stainless steel with superior anti-oxidation and rust resistance. It prevents surface corrosion and precision degradation in humid and open environments, suitable for food processing mini devices, light industry and daily precision machinery.
316 Stainless Steel: Premium marine-grade corrosion-resistant material with excellent acid, alkali and salt spray tolerance. It withstands mild chemical erosion and coastal high-humidity conditions, ideal for sanitary equipment, marine micro devices and light chemical precision instruments.
420 Stainless Steel: High-toughness martensitic stainless steel balancing moderate corrosion resistance and high surface hardness. It features reliable wear and impact resistance, ensuring stable dimensional accuracy for long-cycle operating miniature precision parts.
440 Stainless Steel: Ultra-high hardness stainless steel with top-tier abrasion resistance and structural stability. It maintains precise operation under slight wear and complex corrosive environments, customized for high-end electronic and industrial precision miniature equipment.
Core Advantages And Industrial Applications
The 626 deep groove ball bearing integrates ultra-compact size, lightweight design, ultra-low noise 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 motors, precision instruments, consumer electronics, intelligent toy transmission parts, small household appliances, miniature medical devices, automated precision accessories and food processing micro equipment, providing durable, low-maintenance and high-efficiency precision rotation solutions for modern light-load miniature mechanical systems.
