FR6 Flange Ball Bearings
| FR6 Flange Ball Bearings | |||
|---|---|---|---|
| Part Number | FR6 | Ball Number | 7 |
| d | 9.525 | Ball Size | 3.969 |
| R | 0.4 | Dynamic Load Co(N) | 3650 |
| D/D1 | 22.225/24.613 | Static Load Cor(N) | 1410 |
| B/C | 5.558/1.57 | Grease Speed | 32000 |
| Weight(Kg) | 0.010 | Oil Speed | 38000 |
FR6 Flange Deep Groove Bearing | Open, ZZ, 2RS High Precision Miniature Bearing
The FR6 flange deep groove ball bearing is a high-precision miniature bearing optimized for ultra-compact, space-constrained micro mechanical systems requiring stable load capacity, accurate positioning and consistent long-term high-speed rotation. Designed with an integral one-piece flange and finely polished deep groove raceways, this bearing delivers superior dimensional stability, ultra-low vibration and smooth rotary performance during continuous cyclic operation. The built-in flange structure eliminates additional positioning fasteners, simplifies rapid assembly, and effectively prevents shaft offset and axial play in compact precision equipment layouts. Available in three standard industrial configurations: FR6 open type, FR6ZZ double metal shield type and FR6-2RS double rubber sealed type, it reliably operates in dry, dusty, humid and mildly corrosive indoor and outdoor working environments. Offered in carbon steel, 304 stainless steel, 316 stainless steel, 420 stainless steel and 440 stainless steel, the FR6 fully meets economical, sanitary, high-wear and anti-corrosion precision micro machinery application requirements.
FR6 Open / ZZ / 2RS Structural Features
FR6 Open Type: The unsealed open structure enables unobstructed air circulation and efficient heat dissipation, preventing thermal accumulation and precision degradation during prolonged high-speed operation. It supports convenient grease refilling and tool-free routine maintenance without increasing rotational resistance. Ideal for clean, dry indoor workshops and fully enclosed miniature precision machinery, it maintains stable running accuracy and long-term operational consistency.
FR6ZZ Double Metal Shields: Equipped with dual non-contact steel shields, the FR6ZZ effectively blocks fine dry dust, floating particles and micro industrial debris. The non-contact protective design retains original high-speed smoothness and micro precision with minimal friction loss. Featuring reliable structural durability and outstanding cost performance, this model is widely applied in dry industrial environments and long-running high-speed miniature precision automation equipment.
FR6-2RS 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, realizing long-term maintenance-free operation for complex humid, dusty and semi-corrosive micro equipment working scenarios.
FR6 Bearing Material Performance
Carbon Steel: High cost-performance industrial base material with uniform hardness and stable anti-fatigue properties. Carbon steel FR6 bearings deliver reliable wear resistance and smooth high-speed 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 miniature food processing accessories, compact medical devices and sanitary-grade micro 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 miniature marine instruments and micro 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 FR6 miniature flange bearing features an upgraded compact structure, stable load capacity, integrated flange positioning, ultra-quiet operation and durable high-speed precision. Multiple sealing grades and diversified material options fully cover industrial demands for cost efficiency, sanitation, wear resistance and corrosion protection. Widely applied in miniature high-speed motors, micro drone precision components, compact robotic micro joints, portable optical precision instruments, micro transmission systems, small precision power tools and mini medical automation devices, the FR6 acts as a core rotary and positioning component for ultra-space-limited micro mechanical structures. It provides high-efficiency, low-noise and low-maintenance precision rotation solutions for modern miniaturized industrial, commercial and sanitary precision automation equipment.
