MR104 Deep Groove Ball Bearing
| MR104 Deep Groove Ball Bearing | |||
|---|---|---|---|
| Part Number | MR104 | Ball Number | 7 |
| d | 4 | Ball Size | 1.588 |
| D1 | 10 | Dynamic Load Co(N) | 710 |
| B | 3 | Static Load Cor(N) | 270 |
| R | 0.2 | Grease Speed | 48000 |
| Weight(Kg) | 0.00104 | Oil Speed | 56000 |
MR104 Miniature Deep Groove Ball Bearing | Open, ZZ, 2RS High Precision Bearings
The MR104 deep groove ball bearing is a high-precision miniature rolling bearing designed for ultra-compact, space-limited micro mechanical systems. Built with optimized miniaturized dimensions, mirror-polished raceways and precision-calibrated rolling elements, this single-row bearing delivers ultra-low friction, minimal vibration and stable high-speed rotational performance. Tailored for long-term light-load and high-frequency cyclic operation, the MR104 features reliable dimensional stability and structural rigidity, perfectly meeting the precision demands of modern miniaturized electromechanical equipment. This bearing series provides three mainstream industrial configurations: open type, MR104ZZ double metal shield type and MR104-2RS double rubber sealed type. With five industrial-grade material options, it adapts seamlessly to economical, sanitary, high-wear and corrosive working environments for diverse micro-precision industrial applications.
MR104 Open / ZZ / 2RS Structural Features
MR104 Open Type: The unsealed open structure supports unobstructed air circulation and efficient heat dissipation, effectively preventing thermal fatigue during prolonged high-speed micro operation. It allows convenient manual grease replenishment and hassle-free daily maintenance without generating extra rotational resistance. Ideal for clean, dry indoor environments and fully enclosed precision micro machinery, it maintains ultra-high running accuracy and stable long-cycle operational consistency for lightweight micro assemblies.
MR104ZZ Double Metal Shields: Equipped with dual non-contact steel shields, the MR104ZZ miniature bearing effectively blocks dry fine 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. Boasting stable durability and superior cost performance, it is widely used in dry working conditions for micro high-speed motors, drone components, optical instruments and miniature transmission systems.
MR104-2RS Double Rubber Seals: The fully sealed MR104-2RS 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.
MR104 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 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 MR104 deep groove ball bearing features an ultra-compact miniature structure, lightweight design, ultra-low noise and durable high-speed precision. Three universal sealing solutions and five diversified material grades fully cover industrial demands for economy, rust resistance, wear resistance and corrosion resistance. 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. As a core ultra-small rotary component for space-constrained micro mechanical systems, the MR104 bearing provides high-efficiency, low-maintenance and ultra-precise rotation solutions for modern miniaturized industrial and commercial precision equipment.
