7003 Angular Contact Ball Bearings
| 7003 Angular Contact Ball Bearings | |||
|---|---|---|---|
| Part Number | 7003 | Ball Number | 12 |
| d | 17 | Ball Size | 4.762 |
| D1 | 35 | Dynamic Load Co(N) | 6300 |
| B | 10 | Static Load Cor(N) | 3600 |
| R | 0.3 | Grease Speed | 23000 |
| Weight(Kg) | 0.04 | Oil Speed | 30000 |
7003 Angular Contact Ball Bearing | High Precision Single Row Industrial Bearings
The 7003 angular contact ball bearing is a popular single-row precision bearing in the 7000 series, optimized for medium-load and high-speed industrial operation. Designed with a standard contact angle, it uniquely supports combined radial and unidirectional axial loads, featuring higher structural rigidity and running accuracy than ordinary deep groove bearings. The 7003 bearing supports diverse sealing and material customization, adapting to multiple complex working environments, making it a staple precision component for general industrial and automated mechanical transmission systems.
Common Sealing Types And Functional Features
7003 angular contact bearings adopt three mainstream sealing structures to meet different operational needs, stabilizing performance and extending service life:
Open Type: Seal-free design with ultra-low rolling resistance and superior heat dissipation. It supports regular grease replacement and circulating lubrication, suitable for clean, low-dust indoor equipment and continuous high-speed operating scenarios.
ZZ Metal Shield Seal: Double-sided non-contact metal shields that block solid dust and large particulate impurities. It preserves excellent high-speed performance with negligible friction loss, ideal for dry workshops and general medium-high speed industrial machinery.
2RS Rubber Contact Seal: Tight double-sided rubber sealing structure that isolates moisture, fine dust, oil stains and corrosive contaminants. It effectively prevents internal grease leakage, requiring minimal maintenance, perfect for humid, dusty and harsh working conditions.
Bearing Material Types And Professional Applications
Chrome Bearing Steel: Standard industrial material for 7003 precision bearings, delivering high hardness, exceptional wear resistance and anti-fatigue performance. It maintains stable precision under long-term high-speed and composite load operation, offering outstanding cost performance. Widely used in precision motors, small machine tools, fan equipment and industrial compressors.
304 Stainless Steel: Features reliable anti-rust and anti-oxidation properties, adapting to humid and dusty conventional environments. It ensures stable medium-load operation, serving as an economical anti-corrosion option for light industrial equipment and civilian precision electromechanical devices.
420 Stainless Steel: Balances high hardness and mechanical toughness with mild corrosion resistance. It resists high-speed friction and weak chemical erosion, ideal for precision instruments, optical devices and portable high-precision machinery.
440C Stainless Steel: Boasts ultra-high hardness and superior abrasion resistance, suitable for damp and moderately corrosive workshops. It avoids precision wear and aging, widely applied in automated precision equipment and light chemical machinery.
316 Stainless Steel: Premium corrosion-resistant material with excellent salt spray, acid and alkali resistance. It operates stably in harsh corrosive environments, perfect for food sanitation machinery, marine auxiliary parts and chemical testing equipment.
Core Advantages And Industrial Application Scenarios
The 7003 angular contact ball bearing features balanced medium-load capacity, high rotational precision, low vibration and stable high-speed operation. Diversified sealing and material options greatly improve environmental adaptability, covering dry, humid and mildly corrosive working scenarios. It is widely applied in industrial automation, precision machining, high-speed power equipment, pneumatic systems, food processing and marine auxiliary machinery, providing cost-effective and durable precision bearing solutions for medium-speed industrial mechanical systems.
