FR12 Flange Ball Bearings
| FR12 Flange Ball Bearings | |||
|---|---|---|---|
| Part Number | FR12 | Ball Number | 10 |
| d | 19.05 | Ball Size | 6.35 |
| R | 0.8 | Dynamic Load Co(N) | 5627 |
| D/D1 | 41.275/44.45 | Static Load Cor(N) | 3781 |
| B/C | 7.938/1.58 | Grease Speed | 14000 |
| Weight(Kg) | 0.135 | Oil Speed | 16500 |
FR12 Flange Deep Groove Bearing | Open, ZZ, 2RS High Precision Miniature Bearing
The FR12 flange deep groove ball bearing is a high-load miniature flange bearing engineered for compact, space-constrained micro mechanical systems requiring larger bore size, enhanced radial load capacity and stable long-term high-speed rotary performance. Featuring a thickened one-piece integrated flange and ultra-fine polished deep groove raceways, this bearing delivers outstanding structural rigidity, ultra-low vibration and consistent operational stability during continuous cyclic heavy-duty work. The integrated flange design removes extra positioning fasteners, simplifies rapid precision assembly, and effectively prevents shaft offset, axial play and mechanical shaking in densely arranged compact equipment layouts. Available in three standard industrial variants: FR12 open type, FR12ZZ double metal shield type and FR12-2RS double rubber sealed type, it reliably adapts to dry, dusty, humid and mildly corrosive indoor and outdoor working environments. Manufactured in carbon steel, 304 stainless steel, 316 stainless steel, 420 stainless steel and 440 stainless steel, the FR12 fully satisfies economical, sanitary, high-wear and anti-corrosion miniature precision industrial application demands.
FR12 Open / ZZ / 2RS Structural Features
FR12 Open Type: The unsealed open structure ensures unobstructed air circulation and efficient heat dissipation, eliminating thermal accumulation and precision degradation during prolonged high-speed and medium-heavy load operation. It supports convenient grease refilling and tool-free routine maintenance without increasing rotational resistance. Ideal for clean, dry indoor workshops and fully enclosed precision micro machinery, it maintains stable running accuracy and long-cycle operational consistency.
FR12ZZ Double Metal Shields: Equipped with dual non-contact steel shields, the FR12ZZ effectively blocks fine dry dust, floating particles and micro industrial debris. The non-contact protective design retains original high-speed smoothness and dimensional precision with minimal friction loss. Featuring excellent structural durability and cost performance, this model is widely applied in dry industrial workshops and long-running heavy-load miniature precision automation equipment.
FR12-2RS Double Rubber Seals: The fully sealed 2RS structure adopts double-sided contact rubber seals to comprehensively isolate moisture, water splashes, oil mist and corrosive fine dust. It tightly locks internal lubricating grease to prevent leakage, oxidation and aging, enabling long-term maintenance-free operation for humid, dusty and complex semi-corrosive industrial scenarios.
FR12 Bearing Material Performance
Carbon Steel: High cost-performance industrial base material with uniform hardness and stable anti-fatigue properties. Carbon steel FR12 bearings deliver reliable wear resistance and steady heavy-load rotation, ideal for mass production and budget-sensitive miniature precision automation projects.
304 Stainless Steel: Food-grade rust-resistant stainless steel with excellent oxidation resistance. It resists micro corrosion in humid and open environments, suitable for food processing machinery, medical devices and sanitary-grade precision mechanical systems.
316 Stainless Steel: Marine-grade anti-corrosion material with strong tolerance to salt spray, acid and alkali erosion. It maintains stable structural precision in coastal high-humidity and light chemical environments for marine instruments and miniature chemical equipment.
420 Stainless Steel: High-toughness martensitic stainless steel balancing moderate corrosion resistance and high surface hardness. It delivers stable wear resistance and precise dimensional stability during continuous high-speed cyclic operation.
440 Stainless Steel: Ultra-high hardness stainless steel with top-tier abrasion resistance. It withstands severe friction wear and weak corrosive conditions, ensuring long-term accurate and stable rotation for high-end micro precision mechanical systems.
Core Advantages And Industrial Applications
The FR12 miniature flange bearing features a thickened reinforced compact structure, upgraded heavy-load capacity, integrated flange positioning, ultra-quiet operation and durable high-speed stability. Multiple sealing grades and diversified material options fully cover industrial demands for cost efficiency, sanitation, wear resistance and corrosion protection. Widely applied in medium-heavy load miniature motors, large-scale drone precision assemblies, compact robotic transmission joints, optical precision detection instruments, micro transmission systems, high-precision power tools and miniature medical automation devices, the FR12 serves as a core rotary and positioning component for ultra-space-limited compact mechanical structures. It provides high-efficiency, low-noise and low-maintenance precision rotation solutions for modern miniaturized industrial, commercial and sanitary precision automation equipment.
