F6203Flange Ball Bearings

F6203Flange Ball Bearings
Part Number F6203 dr 4750
d 17 Ball Number 8
R 0.6 Ball Size 6.35
D/D1 40/42.5 Dynamic Load Co(N) 9550
B/C 12/1.2 Static Load Cor(N) 4750
Weight(Kg) 0.0642 Grease Speed 18000
L 9550 Oil Speed 22000

F6203 Flange Deep Groove Bearing | Open, ZZ, 2RS High Precision Bearing

The F6203 flange deep groove ball bearing is a high-strength standard-size flanged bearing engineered for medium-to-heavy load compact mechanical systems requiring rigid stability and long-duration high-speed rotation. Built with a thickened integrated flange and optimized deep groove raceway structure, this bearing delivers upgraded radial load capacity, excellent structural rigidity and ultra-low vibration during continuous cyclic operation. The one-piece flange design removes the need for extra locking fixtures, simplifies precision assembly, and effectively eliminates shaft offset, axial play and mechanical shaking in space-limited installations. Available in three mainstream industrial versions: F6203 open type, F6203ZZ double metal shield type and F6203-2RS double rubber sealed type, it reliably operates in dry, dusty, humid and mildly corrosive working environments. Offered in carbon steel, 304 stainless steel, 316 stainless steel, 420 stainless steel and 440 stainless steel, the F6203 meets full-spectrum industrial demands for economical, sanitary, wear-resistant and anti-corrosion precision applications.

F6203 Open / ZZ / 2RS Structural Features

F6203 Open Type: The unsealed open structure ensures unobstructed air circulation and efficient heat dissipation, preventing thermal deformation and precision loss during prolonged high-speed running. It supports easy grease refilling and tool-free routine maintenance without increasing rotational resistance. Ideal for clean, dry indoor workshops and fully enclosed precision machinery, it maintains stable running accuracy and long-term operational consistency.

F6203ZZ Double Metal Shields: Equipped with dual non-contact steel shields, the F6203ZZ effectively blocks fine dry dust, floating particles and industrial debris. The non-contact protective structure preserves original high-speed smoothness and micro precision with minimal friction loss. Featuring excellent durability and cost performance, this model is widely used in dry industrial environments and long-cycle medium-to-high load precision equipment.

F6203-2RS Double Rubber Seals: The fully sealed 2RS structure adopts double-sided contact rubber seals to isolate moisture, splash water, oil mist and corrosive fine dust. It firmly locks internal lubricant to prevent grease leakage, oxidation and aging, achieving long-term maintenance-free operation. This versatile bearing runs stably in humid, dusty and complex indoor and outdoor industrial scenarios.

F6203 Bearing Material Performance

Carbon Steel: High cost-performance industrial base material with uniform hardness and stable anti-fatigue performance. Carbon steel F6203 bearings deliver reliable wear resistance and heavy-load rotary stability, ideal for mass production and budget-sensitive medium-heavy load automation projects.

304 Stainless Steel: Food-grade rust-resistant stainless steel with outstanding oxidation resistance. It resists micro corrosion in humid and open environments, suitable for food processing machinery, medical devices and sanitary-grade precision systems.

316 Stainless Steel: Marine-grade anti-corrosion material with strong resistance to salt spray, acid and alkali erosion. It maintains stable dimensional 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 provides stable wear resistance and precise stability during frequent high-speed cyclic operation.

440 Stainless Steel: Ultra-high hardness stainless steel with superior abrasion resistance. It withstands heavy friction and weak corrosion, ensuring long-term accurate rotation for high-end heavy-duty precision mechanical systems.

Core Advantages And Industrial Applications

The F6203 flange bearing features a thickened robust structure, superior heavy-load capacity, integrated flange positioning, ultra-quiet operation and durable high-speed stability. Multiple sealing grades and diversified material options fully cover industrial requirements for cost efficiency, sanitation, wear resistance and corrosion protection. Widely applied in heavy-duty miniature motors, industrial automation components, drone load-bearing assemblies, robotic transmission systems, optical detection equipment and high-power portable tools, the F6203 serves as a core rotary and positioning component for compact high-load mechanical structures. It provides low-noise, high-efficiency and low-maintenance precision rotation solutions for modern industrial, commercial and sanitary precision automation devices.

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