637ZZ Deep Groove Ball Bearings
| 637ZZ Deep Groove Ball Bearings | |||
|---|---|---|---|
| Part Number | 637 | Ball Number | 7 |
| d | 7 | Ball Size | 4.762 |
| D1 | 26 | Dynamic Load Co(N) | 4550 |
| B | 9 | Static Load Cor(N) | 1880 |
| R | 0.3 | Grease Speed | 28000 |
| Weight(Kg) | 0.024 | Oil Speed | 34000 |
637 Deep Groove Ball Bearing | Open, ZZ, 2RS High-Speed Mini Bearings
The 637 deep groove ball bearing is a high-precision miniature model in the 6300 series, designed with optimized raceway structure and refined rolling element layout to deliver stable low-friction and ultra-quiet high-speed operation. This single-row deep groove ball bearing features excellent dimensional stability and anti-fatigue durability, perfectly adapting to long-term light cyclic load operation of miniature precision equipment. With a compact and lightweight body, it is a core rotary component for micro electromechanical transmission systems. The 637 series provides three standard configurations: open type, 637ZZ double metal shield type and 637-2RS double rubber sealed type. Equipped with five industrial-grade materials, it meets economical, sanitary, wear-resistant and anti-corrosion demands for various miniature industrial scenarios.
637 Open / ZZ / 2RS Structural Features
637 Open Type: The unsealed open structure ensures unobstructed air circulation and efficient heat dissipation during continuous high-speed operation. It supports quick grease replacement and daily routine cleaning without generating extra rotational resistance. Suitable for clean, dry indoor environments and fully enclosed precision micro machinery, it maintains stable running accuracy and consistent operational performance under long-term light-load cycling conditions.
637ZZ Double Metal Shields: Featured with dual-sided non-contact steel shields, this dust-proof bearing effectively isolates fine dry dust, tiny floating particles and micro workshop debris. The non-contact design retains original high-speed precision and rotational smoothness with zero friction loss. With reliable durability and outstanding cost performance, 637ZZ bearings are widely used in dry micro automation equipment, small DC motors, precision electronic devices and general miniature transmission systems.
637-2RS Double Rubber Seals: This fully sealed version adopts double-sided contact rubber seals to comprehensively block moisture, splash water, oil mist and corrosive fine dust. It firmly locks internal lubricating grease to prevent leakage and aging, realizing long-term maintenance-free operation. It is ideal for humid, dusty and mild outdoor working conditions for miniature precision mechanical equipment.
637 Bearing Material Performance
Carbon Steel: High cost-performance industrial standard material with uniform hardness and stable anti-fatigue properties. It delivers reliable wear resistance and smooth high-speed rotation for conventional light-load miniature equipment, making it the preferred choice for mass consumer electronics and general industrial economical applications.
304 Stainless Steel: Universal food-grade stainless steel with excellent anti-oxidation and rust resistance. It avoids surface corrosion and precision attenuation in humid and open environments, perfectly suited for food processing micro devices, light industry and daily precision miniature machinery.
316 Stainless Steel: Premium marine-grade corrosion-resistant material with strong tolerance to acid, alkali and salt spray. It resists mild chemical erosion and coastal high humidity, applicable for sanitary miniature equipment, marine micro devices and light chemical precision instruments.
420 Stainless Steel: High-toughness martensitic stainless steel balancing moderate corrosion resistance and high surface hardness. It provides stable wear and impact resistance, ensuring long-term dimensional accuracy for miniature precision parts during continuous cyclic operation.
440 Stainless Steel: Ultra-high hardness stainless steel with top-tier abrasion resistance and structural stability. It maintains precise and stable operation under slight wear and complex corrosive environments, customized for high-end electronic and industrial precision miniature equipment.
Core Advantages And Industrial Applications
The 637 deep groove ball bearing boasts an ultra-compact lightweight structure, ultra-low noise and stable high-speed operational performance. Three diversified sealing structures and five professional material grades fully cover economical, anti-rust, wear-resistant and anti-corrosion miniature application scenarios. It is widely utilized in micro drive motors, precision instruments, consumer electronics, intelligent device accessories, small household appliances, miniature medical devices, automated precision components and food processing micro machinery, providing durable, low-maintenance and high-efficiency precision rotation solutions for modern light-load miniature mechanical systems.
