697 Deep Groove Ball Bearings
| 697 Deep Groove Ball Bearings | |||
|---|---|---|---|
| Part Number | 697 | Ball Number | 9 |
| d | 7 | Ball Size | 2.381 |
| D1 | 17 | Dynamic Load Co(N) | 1610 |
| B | 5 | Static Load Cor(N) | 710 |
| R | 0.3 | Grease Speed | 36000 |
| Weight(Kg) | 0.00526 | Oil Speed | 43000 |
697 Deep Groove Ball Bearing | Open, ZZ, 2RS Micro Precision Bearings
The 697 deep groove ball bearing is a high-stability miniature ultra-thin precision bearing in the 6900 series, featuring optimized raceway geometry and upgraded rolling element distribution for balanced rigidity and improved load capacity. Designed for ultra-compact micro-space installation requirements, this single-row thin-wall micro bearing maintains lightweight miniaturized dimensions while delivering consistent low-friction rotation, excellent dimensional stability and reliable anti-fatigue performance. It supports long-term ultra-quiet, high-speed continuous operation under light and medium loads, widely used in miniaturized electromechanical and precision electronic systems. The 697 series includes three mainstream industrial configurations: open type, 697ZZ double metal shield type and 697-2RS double rubber sealed type, with five industrial-grade material options to suit economical, sanitary, wear-resistant and corrosive complex working environments.
697 Open / ZZ / 2RS Structural Features
697 Open Type: The unsealed open structure enables unobstructed air circulation and efficient heat dissipation, effectively preventing heat accumulation during prolonged high-speed micro operation. It allows quick grease replacement and tool-free routine maintenance without generating extra rotational resistance. Suited for clean, dry indoor environments and fully enclosed micro-precision equipment, it maintains stable running accuracy and consistent performance during long-cycle light-load operation.
697ZZ 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 protective design retains original high-speed precision and rotational smoothness with minimal friction loss. Featuring stable long-term durability and excellent cost performance, 697ZZ bearings are extensively applied in dry miniature high-speed motors, precision consumer electronics, smart micro devices and compact micro-transmission systems.
697-2RS 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 micro lubricating grease to prevent leakage, oxidation and aging, achieving long-term maintenance-free operation. It perfectly adapts to humid, dusty and mildly harsh working conditions for portable, outdoor and industrial micro-precision electromechanical equipment.
697 Bearing Material Performance
Carbon Steel: Cost-effective standard industrial material with uniform hardness and stable anti-fatigue properties. It delivers reliable wear resistance and smooth high-speed rotation for conventional micro-precision equipment, providing outstanding cost efficiency for mass electronic products and small industrial batch applications.
304 Stainless Steel: Food-grade stainless steel with superior oxidation and rust resistance. It prevents 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 tolerance to acid, alkali and salt spray. It withstands mild chemical erosion and coastal high humidity, suitable 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 features 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 top-tier abrasion resistance and structural stability. It sustains precise, stable operation under severe wear and corrosive environments, customized for high-end miniature ultra-thin precision industrial and electronic equipment.
Core Advantages And Industrial Applications
The 697 deep groove ball bearing features an ultra-compact micro-size structure, lightweight ultra-thin design, ultra-low noise and durable high-speed precision performance. Three diversified sealing structures and five professional material grades fully cover economical, anti-rust, wear-resistant and anti-corrosion micro-precision application scenarios. It is widely deployed 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.
