F6908 Flange Ball Bearings

F6908 Flange Deep Groove Bearing | Open, ZZ, 2RS High Precision Thin Section Bearing

The F6908 flange deep groove ball bearing is a high-load thin-section precision bearing designed for ultra-compact mechanical systems requiring larger bore size, enhanced radial load capacity and stable long-term high-speed operation. Built with a thickened integrated flange and high-precision polished deep groove raceways, this bearing delivers superior dimensional stability, ultra-low vibration and excellent wear resistance during continuous cyclic work. The one-piece flange design eliminates extra positioning fasteners, simplifies rapid assembly, and effectively prevents shaft offset and axial play in space-constrained precision equipment layouts. Available in three mainstream industrial versions: F6908 open type, F6908ZZ double metal shield type and F6908-2RS 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 F6908 meets full-spectrum industrial demands for economical, sanitary, high-wear and anti-corrosion precision applications.

F6908 Open / ZZ / 2RS Structural Features

F6908 Open Type: The unsealed open structure features unobstructed air circulation and efficient heat dissipation, effectively avoiding thermal accumulation and precision degradation during prolonged high-speed and medium-heavy load operation. 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-cycle operational consistency.

F6908ZZ Double Metal Shields: Equipped with dual non-contact steel shields, the F6908ZZ effectively blocks fine dry dust, floating particles and industrial micro 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 applied in dry industrial environments and long-running high-load precision automation equipment.

F6908-2RS 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 complex humid, dusty and semi-outdoor industrial scenarios.

F6908 Bearing Material Performance

Carbon Steel: High cost-performance industrial base material with uniform hardness and stable anti-fatigue properties. Carbon steel F6908 bearings deliver reliable wear resistance and stable heavy-load rotation, ideal for mass production and budget-sensitive medium-load automation projects.

Core Advantages And Industrial Applications

The F6908 thin-section flange bearing features a reinforced slim structure, upgraded large-bore 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 medium-load miniature motors, large-size drone precision assemblies, robotic transmission joints, optical precision detection instruments, micro transmission systems, high-precision power tools and medical automation equipment, the F6908 acts as a core rotary and positioning component for compact space-limited mechanical structures. It provides high-efficiency, low-noise and low-maintenance precision rotation solutions for modern industrial, commercial and sanitary precision automation devices.