6912 Deep Groove Ball Bearings
| 6912 Deep Groove Ball Bearings | |||
|---|---|---|---|
| Part Number | 6912 | Ball Number | 16 |
| d | 60 | Ball Size | 7.938 |
| D1 | 85 | Dynamic Load Co(N) | 19800 |
| B | 13 | Static Load Cor(N) | 15300 |
| R | 0.6 | Grease Speed | 7200 |
| Weight(Kg) | 0.19 | Oil Speed | 8500 |
6912 Deep Groove Ball Bearing | Open, ZZ, 2RS Ultra-Thin Precision Bearings
The 6912 deep groove ball bearing is a high-performance ultra-thin precision component in the 6900 series, built with reinforced raceway structures and optimized rolling element layouts to enhance structural rigidity and stable medium-load capacity. Engineered for ultra-compact, space-limited installation scenarios, this single-row thin-wall bearing delivers ultra-low friction rotation, consistent dimensional accuracy and excellent anti-fatigue performance. It supports long-term ultra-quiet, high-speed continuous cyclic operation, serving as a core rotary component for medium-sized miniaturized electromechanical devices and precision industrial systems. The 6912 series offers three mainstream industrial configurations: open type, 6912ZZ double metal shield type and 6912-2RS double rubber sealed type, with five industrial-grade materials adapting to economical, sanitary, wear-resistant and corrosive complex working environments.
6912 Open / ZZ / 2RS Structural Features
6912 Open Type: The unsealed open structure enables unobstructed air circulation and efficient heat dissipation, effectively eliminating thermal accumulation during prolonged high-speed operation. It supports tool-free grease replenishment and routine daily maintenance without generating extra rotational resistance. Ideal for clean, dry indoor workshops and fully enclosed precision equipment, it maintains stable running accuracy and reliable performance during long-cycle medium-load operation.
6912ZZ Double Metal Shields: Equipped with dual-sided non-contact steel shields, this dust-proof precision bearing effectively blocks fine dry dust, floating micro particles and industrial debris. The non-contact protective design preserves original high-speed precision and rotational smoothness with minimal friction loss. Featuring long-term durability and superior cost performance, 6912ZZ bearings are widely applied in dry high-speed miniature motors, precision consumer electronics, smart automated components and compact transmission systems.
6912-2RS 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 lubricating grease to prevent leakage, oxidation and aging, enabling long-term maintenance-free operation. It reliably adapts to humid, dusty and mildly harsh working conditions for outdoor and industrial precision electromechanical equipment.
6912 Bearing Material Performance
Carbon Steel: High cost-performance standard industrial material with uniform hardness and stable anti-fatigue properties. It delivers dependable wear resistance and smooth high-speed rotation for conventional precision equipment, providing optimal cost efficiency for mass industrial and electronic batch applications.
304 Stainless Steel: Food-grade stainless steel with outstanding oxidation and rust resistance. It prevents corrosion and precision degradation in humid and open environments, ideal for food processing machinery, sanitary equipment and daily precision devices.
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 precision parts, sanitary instruments and chemical processing 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 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 ultra-thin precision industrial equipment.
Core Advantages And Industrial Applications
The 6912 deep groove ball bearing features an ultra-thin compact structure, lightweight 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 precision application scenarios. It is extensively used in precision miniature motors, smart wearable devices, consumer electronics, small household appliances, micro medical devices, automated mechanical components and light-duty sanitary machinery. This bearing provides compact, low-maintenance and high-efficiency precision rotation solutions for modern space-limited miniaturized mechanical systems, meeting diverse commercial and industrial precision operation requirements.
