F6902 Flange Ball Bearings
| F6902 Flange Ball Bearings | |||
|---|---|---|---|
| Part Number | F6902 | Ball Number | 11 |
| d | 15 | Ball Size | 2.778 |
| R | 0.3 | Dynamic Load Co(N) | 2450 |
| D/D1 | 28/30 | Static Load Cor(N) | 1420 |
| B/C | 7/1 | Grease Speed | 25000 |
| Weight(Kg) | 0.0148 | Oil Speed | 30000 |
F6902 Flange Deep Groove Bearing | Open, ZZ, 2RS High Precision Thin Section Bearing
The F6902 flange deep groove ball bearing is a premium ultra-thin miniature bearing optimized for slim, space-restricted micro mechanical systems requiring balanced load capacity, lightweight structure and stable high-speed rotary accuracy. Designed with an integrated one-piece flange and finely polished deep groove raceways, this thin-section bearing delivers excellent dimensional stability, ultra-low noise and vibration, and consistent rotary smoothness during long-cycle continuous operation. The built-in flange removes the need for extra locking fixtures, accelerates precision assembly, and effectively prevents shaft offset and axial play in compact equipment layouts. Available in three industrial standard versions: F6902 open type, F6902ZZ double metal shield type and F6902-2RS double rubber sealed type, it adapts perfectly to dry, dusty, humid and mildly corrosive working conditions. Offered in carbon steel, 304 stainless steel, 316 stainless steel, 420 stainless steel and 440 stainless steel, the F6902 meets full-spectrum industrial needs for economical, sanitary, wear-resistant and anti-corrosion precision machinery applications.
F6902 Open / ZZ / 2RS Structural Features
F6902 Open Type: The unsealed open structure enables unobstructed air circulation and efficient heat dissipation, eliminating thermal accumulation and precision degradation during prolonged high-speed operation. It supports easy grease replenishment and tool-free routine maintenance without increasing rotational resistance. Ideal for clean, dry indoor environments and fully enclosed precision micro machinery, it maintains stable running accuracy and long-term operational consistency.
F6902ZZ Double Metal Shields: Equipped with dual non-contact steel shields, the F6902ZZ effectively blocks fine dry dust, floating particles and micro industrial debris. The non-contact protective design preserves original high-speed smoothness and micro precision with minimal friction loss. Featuring stable durability and superior cost performance, this model is widely used in dry industrial workshops and long-running high-speed micro precision automation equipment.
F6902-2RS 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, achieving long-term maintenance-free operation for complex humid and dusty industrial scenarios.
F6902 Bearing Material Performance
Carbon Steel: High cost-performance industrial base material with uniform hardness and stable anti-fatigue properties. Carbon steel F6902 bearings deliver reliable wear resistance and smooth high-speed rotation, ideal for mass production and budget-sensitive precision automation projects.
304 Stainless Steel: Food-grade rust-resistant stainless steel with excellent oxidation resistance. It withstands mild humid corrosion, making it suitable for food processing parts, medical devices and sanitary-grade precision mechanical systems.
316 Stainless Steel: Marine-grade anti-corrosion stainless steel with strong resistance to salt spray, acid and alkali erosion. It retains stable precision in coastal high-humidity and light chemical environments for marine instruments and miniature chemical equipment.
420 Stainless Steel: High-toughness martensitic stainless steel with balanced hardness and corrosion resistance. It provides stable wear resistance and dimensional stability during repeated high-speed cyclic operation.
440 Stainless Steel: Ultra-high hardness stainless steel with top-tier abrasion resistance. It resists heavy friction and weak corrosion, guaranteeing long-term accurate rotation for high-end micro precision mechanical systems.
Core Advantages And Industrial Applications
The F6902 ultra-thin flange bearing features a lightweight slim structure, accurate flange positioning, ultra-quiet operation and durable high-speed precision. Multiple sealing options and diverse material grades fully satisfy industrial demands for cost efficiency, sanitation, wear resistance and corrosion protection. Widely applied in slim miniature high-speed motors, micro drone precision assemblies, compact robotic micro joints, portable optical instruments, micro transmission systems, mini precision power tools and small-scale medical automation devices, the F6902 acts as a core rotary and positioning component for ultra-space-limited micro mechanical structures. It delivers low-noise, high-efficiency and low-maintenance precision rotation solutions for modern miniaturized industrial, commercial and sanitary precision automation equipment.
