6819 Deep Groove Ball Bearings
| 6819 Deep Groove Ball Bearings | |||
|---|---|---|---|
| Part Number | 6819 | Ball Number | 25 |
| d | 95 | Ball Size | 4.762 |
| D1 | 120 | Dynamic Load Co(N) | 19300 |
| B | 13 | Static Load Cor(N) | 22000 |
| R | 1 | Grease Speed | 5000 |
| Weight(Kg) | 0.297 | Oil Speed | 6000 |
6819 Deep Groove Ball Bearing | Open, ZZ, 2RS Ultra-Thin Precision Bearings
The 6819 deep groove ball bearing is a premium large-bore ultra-thin heavy-duty component in the 6800 series, featuring reinforced thickened raceways and optimized oversized rolling elements to maximize structural rigidity and heavy-load endurance. Retaining the series’ signature ultra-slim space-saving design, this single-row thin-wall bearing solves extreme space-limited installation challenges for large compact precision machinery without sacrificing operational stability. It delivers low-friction smooth rotation, superior anti-fatigue performance and consistent dimensional accuracy, supporting long-term ultra-quiet, stable high-speed cyclic operation under sustained heavy loads. The 6819 series offers three standard industrial configurations: open type, 6819ZZ double metal shield type and 6819-2RS double rubber sealed type, with five industrial-grade materials adapting to economical, sanitary, wear-resistant and corrosive complex industrial environments.
6819 Open / ZZ / 2RS Structural Features
6819 Open Type: The unsealed open structure enables unobstructed air circulation and efficient heat dissipation, completely eliminating thermal accumulation during prolonged high-speed continuous operation. It supports convenient regular grease replacement and tool-free daily maintenance with zero extra rotational resistance. Ideal for clean, dry indoor workshops and fully enclosed large slim precision equipment, it maintains stable running accuracy and reliable performance during long-cycle heavy-load operation.
6819ZZ Double Metal Shields: Equipped with dual-sided non-contact steel shields, this high-performance dust-proof bearing effectively blocks fine dry dust, floating micro particles and industrial debris. The non-contact protective design preserves original high-speed precision and rotational smoothness with minimal friction loss. Featuring long-lasting durability and superior cost performance, 6819ZZ bearings are widely deployed in dry precision automation systems, large slim high-power motors, precision electronic devices and compact heavy-duty transmission machinery.
6819-2RS Double Rubber Seals: This fully sealed premium variant adopts double-sided contact rubber seals to comprehensively isolate moisture, splash water, oil mist and corrosive fine dust. It firmly locks internal lubricating grease to prevent leakage, oxidation and aging, achieving long-term maintenance-free operation. It reliably adapts to humid, dusty and mildly harsh workshop and outdoor working conditions for large-scale compact high-precision electromechanical equipment.
6819 Bearing Material Performance
Carbon Steel: High cost-performance standard industrial material with uniform hardness and stable anti-fatigue properties. It provides reliable wear resistance and smooth high-speed rotation for conventional heavy-load precision equipment, delivering optimal cost efficiency for mass industrial and electronic batch applications.
304 Stainless Steel: Food-grade stainless steel with superior oxidation and rust resistance. It prevents surface corrosion and precision degradation in humid and open environments, suitable for food processing machinery, sanitary equipment and slim precision devices.
316 Stainless Steel: Marine-grade corrosion-resistant material with strong acid, alkali and salt spray tolerance. It withstands mild chemical erosion and coastal high humidity, perfect for marine precision parts, sanitary processing equipment and chemical precision instruments.
420 Stainless Steel: High-toughness martensitic stainless steel balancing moderate corrosion resistance and high surface hardness. It features stable wear and impact resistance, maintaining accurate dimensional stability during long-term continuous precision operation.
440 Stainless Steel: Ultra-high hardness stainless steel with top-tier abrasion resistance and structural stability. It sustains precise, stable operation under severe wear and corrosive environments, customized for high-end ultra-thin precision industrial equipment.
Core Advantages And Industrial Applications
The 6819 deep groove ball bearing integrates an ultra-thin space-saving structure, lightweight design, supreme heavy-load capacity, ultra-low noise and long-lasting high-speed stability. Three versatile sealing structures and five professional material grades fully cover economical, anti-rust, wear-resistant and anti-corrosion precision application scenarios. It is extensively applied in large slim high-power precision motors, industrial automation transmission systems, smart mechanical components, high-end consumer electronics, miniature medical devices and food processing machinery, providing compact, low-maintenance and high-efficiency precision rotation solutions for modern space-limited heavy-duty precision mechanical systems.
