699 Deep Groove Ball Bearings
| 699 Deep Groove Ball Bearings | |||
|---|---|---|---|
| Part Number | 699 | Ball Number | 10 |
| d | 9 | Ball Size | 2.778 |
| D1 | 20 | Dynamic Load Co(N) | 2110 |
| B | 6 | Static Load Cor(N) | 1030 |
| R | 0.3 | Grease Speed | 30000 |
| Weight(Kg) | 0.0078 | Oil Speed | 36000 |
699 Deep Groove Ball Bearing | Open, ZZ, 2RS Micro Precision Bearings
The 699 deep groove ball bearing is a compact ultra-thin micro precision bearing belonging to the 6900 series, optimized with refined raceway geometry and well-proportioned rolling elements to deliver balanced rigidity and stable light-load capacity. Designed for ultra-narrow micro-space installation scenarios, this single-row thin-wall bearing features a miniaturized lightweight structure, ensuring low-friction operation, excellent dimensional consistency and reliable anti-fatigue performance. It supports long-term ultra-quiet and stable high-speed rotation for continuous light and medium cyclic loads, serving as a core rotary component for various miniaturized electromechanical and precision electronic devices. The 699 series provides three standard industrial sealing versions: open type, 699ZZ double metal shield type and 699-2RS double rubber sealed type, with five industrial-grade material options to meet economical, sanitary, wear-resistant and anti-corrosion industrial demands.
699 Open / ZZ / 2RS Structural Features
699 Open Type: The unsealed open structure delivers unobstructed air circulation and efficient heat dissipation, effectively avoiding thermal accumulation during long-duration high-speed micro operation. It allows straightforward grease refilling and tool-free routine maintenance with zero extra rotational resistance. Suitable for clean, dry indoor workshops and fully enclosed micro-precision equipment, it maintains stable running accuracy and consistent performance during long-cycle light-load operation.
699ZZ Double Metal Shields: Equipped with dual-sided non-contact steel shields, this dust-proof micro bearing effectively blocks fine dry dust, floating micro particles and tiny workshop debris. The non-contact structure retains original high-speed precision and rotational smoothness with minimal friction loss. Featuring durable service life and outstanding cost performance, 699ZZ bearings are widely used in dry miniature high-speed motors, precision consumer electronics, smart micro devices and compact micro transmission systems.
699-2RS Double Rubber Seals: This fully sealed model adopts double-sided contact rubber seals to fully isolate moisture, water splashes, oil mist and corrosive fine dust. It securely locks internal micro lubricating grease to prevent leakage, oxidation and aging, enabling long-term maintenance-free operation. It stably adapts to humid, dusty and mildly harsh working environments for portable, outdoor and industrial micro-precision electromechanical equipment.
699 Bearing Material Performance
Carbon Steel: High cost-performance industrial base material with uniform hardness and stable anti-fatigue properties. It provides reliable wear resistance and smooth high-speed rotation for conventional micro-precision equipment, delivering optimal cost efficiency for mass electronic and small industrial batch applications.
304 Stainless Steel: Food-grade stainless steel with excellent oxidation and rust resistance. It resists micro corrosion and precision degradation in humid and open environments, ideal for miniature food processing equipment, sanitary micro devices and daily precision gadgets.
316 Stainless Steel: Marine-grade corrosion-resistant material with strong resistance to acid, alkali and salt spray. It withstands mild chemical erosion and coastal high humidity, perfect for marine micro precision parts, sanitary instruments and chemical miniature equipment.
420 Stainless Steel: High-toughness martensitic stainless steel balancing moderate corrosion resistance and high surface hardness. It offers stable wear and impact resistance, maintaining accurate micro dimensional stability during long-term continuous high-speed operation.
440 Stainless Steel: Ultra-high hardness stainless steel with superior abrasion resistance and structural stability. It sustains precise and stable operation under severe wear and corrosive conditions, customized for high-end miniature ultra-thin precision industrial and electronic equipment.
Core Advantages And Industrial Applications
The 699 deep groove ball bearing features an ultra-compact micro size, ultra-thin lightweight structure, ultra-low noise and durable high-speed precision. Three versatile sealing structures and five professional material grades fully cover economical, anti-rust, wear-resistant and anti-corrosion micro-precision application scenarios. It is extensively applied in miniature precision motors, smart wearable devices, consumer electronics, small household appliances, micro medical devices, automated micro components and light-duty sanitary machinery, providing compact, low-maintenance and high-efficiency precision rotation solutions for modern micro-space limited miniaturized mechanical systems.
