R22 Deep groove ball bearing
| R22 Deep groove ball bearing | |||
|---|---|---|---|
| Part Number | R22 | Ball Number | 10 |
| d | 34.925 | Ball Size | 6.35 |
| D1 | 63.5 | Dynamic Load Co(N) | 16280 |
| B | 11.113 | Static Load Cor(N) | 10520 |
| R | 1.2 | Grease Speed | 8000 |
| Weight(Kg) | 0.1225 | Oil Speed | 13000 |
R22 Miniature Deep Groove Ball Bearing | Open, ZZ, 2RS High Precision Bearings
The R22 deep groove ball bearing is a high-precision imperial miniature bearing engineered for compact, space-constrained micro mechanical systems requiring stable high-speed performance, low noise and long service life. Featuring standard imperial sizing, ultra-smooth polished raceways and precision-calibrated rolling elements, this single-row micro bearing delivers ultra-low friction, minimal vibration and consistent dimensional stability. Optimized for light-load, high-frequency cyclic operation, the R22 offers enhanced structural rigidity and excellent fatigue resistance, maintaining reliable precision during long-term continuous operation. Available in three industrial configurations including open type, R22ZZ double metal shield type and R22-2RS double rubber sealed type, this imperial micro bearing comes with five industrial-grade materials to suit economical, sanitary, high-wear and corrosive working environments for diverse micro-precision industrial applications.
R22 Open / ZZ / 2RS Structural Features
R22 Open Type: The unsealed open structure supports unobstructed air circulation and efficient heat dissipation, effectively avoiding thermal buildup during prolonged high-speed operation. It allows easy grease refilling and tool-free routine maintenance without adding extra rotational resistance. Ideal for clean, dry indoor workshops and fully enclosed micro precision machinery, it retains exceptional running accuracy and stable long-cycle performance for lightweight micro mechanical assemblies.
R22ZZ Double Metal Shields: Equipped with dual non-contact steel shields, the R22ZZ miniature bearing reliably blocks fine dry dust, floating micro particles and tiny industrial debris. The non-contact protective design preserves original high-speed smoothness and micro precision with negligible friction loss. Offering stable durability and superior cost performance, it is widely used in dry industrial conditions for micro high-speed motors, drone precision components, optical instruments and miniature transmission systems.
R22-2RS Double Rubber Seals: The fully sealed R22-2RS variant adopts double-sided contact rubber seals to fully isolate moisture, water splashes, oil mist and corrosive fine dust. It securely locks internal lubricant to prevent leakage, oxidation and aging, enabling long-term maintenance-free operation. This versatile sealed model performs consistently in humid, dusty and mildly harsh environments for portable micro precision devices and outdoor miniature electromechanical equipment.
R22 Bearing Material Performance
Carbon Steel: High cost-performance industrial base material with uniform hardness and stable anti-fatigue properties. It delivers reliable wear resistance and smooth high-speed rotation for standard micro precision machinery, perfect for mass production and cost-sensitive miniature equipment projects.
304 Stainless Steel: Food-grade stainless steel with excellent rust and oxidation resistance. It prevents micro corrosion in humid and open environments, well-suited for food processing accessories and sanitary micro precision equipment.
316 Stainless Steel: Marine-grade corrosion-resistant material with strong tolerance to acid, alkali and salt spray erosion. It withstands coastal humidity and mild chemical exposure, applicable for marine micro instruments and light chemical miniature machinery.
420 Stainless Steel: High-toughness martensitic stainless steel balancing moderate corrosion resistance and high surface hardness. It maintains stable wear resistance and precise dimensional stability during continuous high-speed micro cyclic operation.
440 Stainless Steel: Ultra-high hardness stainless steel with top-tier abrasion resistance and structural stability. It ensures accurate and stable micro operation under severe wear and corrosive conditions, optimized for high-end micro precision mechanical systems.
Core Advantages And Industrial Applications
The R22 imperial miniature bearing features a compact lightweight structure, ultra-quiet operation and durable high-speed precision. Three universal sealing grades and five diversified material options fully meet industrial requirements for cost efficiency, rust resistance, wear resistance and anti-corrosion performance. It is extensively applied in miniature high-speed motors, drone precision parts, optical precision instruments, micro transmission components, portable micro power tools and compact medical devices. Serving as a core imperial miniature rotary component for space-constrained micro systems, the R22 bearing provides stable, high-efficiency and low-maintenance rotation solutions for modern miniaturized industrial and commercial precision equipment.
