MR83 Deep Groove Ball Bearing
| MR83 Deep Groove Ball Bearing | |||
|---|---|---|---|
| Part Number | MR83 | Ball Number | 6 |
| d | 3 | Ball Size | 1.588 |
| D1 | 8 | Dynamic Load Co(N) | 615 |
| B | 2.5 | Static Load Cor(N) | 179 |
| R | 0.15 | Grease Speed | 60000 |
| Weight(Kg) | 0.00075 | Oil Speed | 67000 |
MR83 Miniature Deep Groove Ball Bearing | Open, ZZ, 2RS High Precision Bearings
The MR83 deep groove ball bearing is a high-precision miniature bearing tailored for ultra-compact, space-constrained micro mechanical systems. Featuring compact dimensional design, finely polished raceways and precision-machined rolling elements, this single-row micro bearing delivers ultra-low friction, minimal vibration and stable high-speed operational performance. Optimized for long-term light-load and high-frequency cyclic work, the MR83 bearing maintains excellent dimensional accuracy and structural stability despite its miniature size. It is available in three standard industrial specifications: open type, MR83ZZ double metal shield type and MR83-2RS double rubber sealed type. Equipped with five industrial-grade material options, it perfectly adapts to economical, sanitary, wear-resistant and anti-corrosion working environments for diverse micro-precision industrial and commercial applications.
MR83 Open / ZZ / 2RS Structural Features
MR83 Open Type: The unsealed open structure realizes unobstructed air circulation and efficient heat dissipation, effectively preventing thermal accumulation during prolonged high-speed micro operation. It supports convenient grease replenishment and simple daily maintenance without generating extra rotational resistance. Ideal for clean, dry indoor workshops and fully enclosed micro precision machinery, it sustains ultra-high running accuracy and stable long-cycle performance for lightweight micro mechanical assemblies.
MR83ZZ Double Metal Shields: Fitted with dual non-contact steel shields, the MR83ZZ miniature bearing effectively blocks fine dry dust, floating micro particles and tiny industrial debris. The non-contact protective design retains original high-speed smoothness and micro precision with negligible friction loss. Featuring reliable durability and outstanding cost performance, it is widely applied in dry working conditions for micro high-speed motors, drone precision components, optical instruments and miniature transmission systems.
MR83-2RS Double Rubber Seals: The fully sealed MR83-2RS variant adopts double-sided contact rubber seals to comprehensively isolate moisture, water splashes, oil mist and corrosive fine dust. It tightly locks internal micro lubricating grease to prevent leakage, oxidation and aging, enabling long-term maintenance-free operation. This versatile sealed model operates stably in humid, dusty and mildly harsh scenarios for portable micro precision devices and outdoor miniature electromechanical equipment.
MR83 Bearing Material Performance
Carbon Steel: High cost-performance industrial base material with uniform hardness and stable anti-fatigue properties. It provides reliable wear resistance and smooth high-speed rotation for conventional micro precision machinery, ideal for mass batch production and cost-sensitive miniature equipment projects.
304 Stainless Steel: Food-grade stainless steel with excellent anti-rust and anti-oxidation performance. It resists micro corrosion in humid and open environments, perfectly suitable for food processing accessories and sanitary micro precision equipment.
316 Stainless Steel: Marine-grade corrosion-resistant material with strong resistance to acid, alkali and salt spray erosion. It withstands coastal high humidity and mild chemical corrosion, 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 sustains accurate and stable micro operation under severe wear and corrosive conditions, customized for high-end micro precision mechanical systems.
Core Advantages And Industrial Applications
The MR83 deep groove ball bearing features an ultra-compact miniature structure, lightweight design, ultra-low vibration and durable high-speed precision. Three universal sealing solutions and five diversified material grades fully meet industrial demands for economy, rust resistance, wear resistance and corrosion resistance. It is extensively applied in miniature high-speed motors, drone core parts, optical precision instruments, micro transmission components, portable micro power tools and compact medical precision devices. As a core ultra-small rotary component for space-limited micro mechanical systems, the MR83 bearing delivers high-efficiency, low-maintenance and ultra-precise rotation solutions for modern miniaturized industrial and commercial precision equipment.
