604 Deep Groove Ball Bearings
| 604 Deep Groove Ball Bearings | |||
|---|---|---|---|
| Part Number | 604 | Ball Number | 7 |
| d | 4 | Ball Size | 2.0 |
| D1 | 12 | Dynamic Load Co(N) | 960 |
| B | 4 | Static Load Cor(N) | 345 |
| R | 0.2 | Grease Speed | 48000 |
| Weight(Kg) | 0.0021 | Oil Speed | 56000 |
604 Deep Groove Ball Bearing | Open / ZZ / RS | Bearing Steel And Stainless Steel Full Series
Product Overview
The 604 deep groove ball bearing is a high-precision miniature bearing with standard dimensions: 4mm inner diameter, 12mm outer diameter, and 4mm width. Featuring low friction, low noise, stable operation, compact structure and long service life, it is widely used in various miniature precision transmission equipment. This 604 bearing series provides three sealing structures: 604 Open type, 604ZZ double metal shield type, and 604RS double rubber sealed type.
604 Open Bearing
With no sealing structure, the 604 open bearing delivers minimal operating resistance, excellent heat dissipation and the highest limit speed, and allows regular re-lubrication maintenance. It is suitable for clean, dust-free, enclosed equipment and ultra-high-speed precision working conditions. Typical applications include precision micro motors, medical instruments, laboratory testing equipment and precision transmission components.
604ZZ Shielded Bearing
Equipped with double-sided metal shields adopting a non-contact protective design, the 604ZZ bearing does not affect high-speed operation and offers better high-temperature resistance than rubber-sealed bearings. It effectively blocks dry dust and particle impurities. Pre-filled with long-life grease at the factory, it supports long-term maintenance-free operation. Ideal for dry and slightly dusty environments with medium and high-speed continuous operation, it is commonly used in home appliance motors, cooling fans, power tools and general automated equipment.
604RS Sealed Bearing
Designed with double-sided nitrile rubber contact seals, the 604RS bearing features the highest protection level. It provides excellent dustproof, waterproof, oil-proof and anti-grease-leakage performance, adapting to humid, dusty, splash-prone and harsh outdoor environments with long-term maintenance-free performance. Widely applied in outdoor electronic devices, agricultural machinery parts, water washing equipment and food processing auxiliary equipment. It is not recommended for long-term operation above 100°C.
Material Characteristics And Applications
Bearing Steel (GCr15/SUJ2)
Features high hardness, superior wear resistance, smooth rotation and high cost performance with stable dimensional accuracy. As a standard general-purpose material, it is only applicable for dry, clean and non-corrosive environments. It is widely used in electronic toys, cooling fans, ordinary micro motors, household appliances, office equipment and general industrial scenarios.
420 Stainless Steel
Martensitic stainless steel with outstanding hardness and wear resistance and basic rust-proof performance. It resists daily water vapor and slight humid corrosion with moderate cost. Suitable for indoor humid equipment, precision toys, small medical accessories and light industrial machinery requiring mild rust and wear resistance.
440 Stainless Steel
High-hardness wear-resistant stainless steel with excellent rust resistance and weak anti-corrosion performance and stable comprehensive mechanical properties. It withstands mild salt spray environments and is widely used in outdoor monitoring, precision electronics, beauty and medical equipment, offshore miniature devices and high-end precision transmission parts.
304 Stainless Steel
Professional heat-resistant stainless steel with outstanding high-temperature oxidation resistance and thermal stability. It resists deformation and oxidation scaling under high temperatures. Specially designed for high-temperature working conditions, it applies to high-temperature hot air fans, heating equipment, high-temperature furnace accessories and thermal testing instruments.
316 Stainless Steel
High-grade molybdenum-containing anti-corrosion stainless steel with excellent resistance to seawater, acid, alkali and heavy salt spray. It features stable chemical performance, non-magnetism and rust & deformation resistance. As the preferred material for harsh corrosive conditions, it is widely used in marine equipment, chemical facilities, food and pharmaceutical medical devices and coastal anti-corrosion equipment.
Core Technical Parameters
Model: 604 (Open / ZZ / RS); Dimensions: 4×12×4mm; Structure: Single row deep groove ball bearing; Precision Grade: Standard P0, customizable P6/P5/P4; Working Temperature: -20℃~120℃ (Open/ZZ), -20℃~100℃ (RS); Features: Low noise, ultra-low friction, high speed, wear resistant, customizable anti-corrosion and high-temperature resistance.
