Our company produces bearing steel and 440C 1mm steel balls that meet the G10 grade standard, ensuring high precision and quality. The key technical specifications are as follows:

Roundness precision: ≤ 0.19μm

Batch variation: ≤ 0.21μm

Measurement tool: 0.2μm three-pin gauge for quality control and precision assurance

Material selection: All raw materials are sourced from renowned manufacturers to ensure consistency and quality.

Production process: The large-cycle production process guarantees long-term supply stability and punctual delivery.

Below is a detailed explanation of the applications of our GCr15 bearing steel balls and 440C steel balls in micro ball cages:

GCr15 Bearing Steel 1mm Steel Balls

Material Characteristics

GCr15 bearing steel, a high-carbon chromium alloy steel, is well-known for its high hardness and excellent wear resistance. After heat treatment, the hardness can reach HRC 58-64, providing outstanding fatigue strength and making it ideal for applications requiring high load capacity and high-speed operation in micro ball cages. Its ability to support heavy loads ensures extended service life in miniaturized mechanical equipment.

Application Scenarios

High Load and High-Speed Equipment

Bearing steel balls are highly suitable for high load and high-speed micro ball cages due to their superior mechanical properties. They effectively enhance load-bearing capacity and reduce frictional losses, prolonging the operational lifespan of the device.

Dry or Lubricated Environments

In well-lubricated or dry environments, GCr15 bearing steel exhibits excellent rolling performance, significantly reducing friction and wear while maintaining a long service cycle. As a result, these steel balls are widely used in precision instruments, consumer-grade electronic devices, and industrial machinery.

Performance Characteristics

High Wear Resistance: Excellent performance under repeated friction and heavy load conditions.

Cost-Effectiveness: Lower production cost, making it ideal for large-scale industrial applications.

Wide Applicability: Commonly used in electronics, instrumentation, and general industrial machinery.

Limitations

The corrosion resistance of bearing steel is relatively low, making it susceptible to damage in humid, saline, or chemical environments. This limits its use in highly corrosive or hygienically sensitive scenarios.

440C 1mm Steel Balls

Material Characteristics

440C is a high-carbon, high-chromium stainless steel that combines superior corrosion resistance with high hardness, making it the material of choice for high-end applications. After heat treatment, its hardness reaches HRC 58-62, ensuring reliable performance in demanding environments.

Application Scenarios

Corrosive Environments

440C steel balls demonstrate outstanding corrosion resistance, making them suitable for long-term stability in moist, saline, and chemical-rich environments. This makes them ideal for use in marine equipment, food processing machinery, and chemical industries.

Hygiene and High-Standard Requirements

In food processing and medical devices, 440C stainless steel is highly favored due to its excellent chemical stability and ability to meet stringent hygiene standards. It ensures pollution-free processing and maintains precise rolling performance over time.

Lightweight and High-Precision Equipment

In robotics, aerospace, and high-precision electronics, 440C steel balls are ideal for micro ball cages due to their high hardness, low friction coefficient, and lightweight characteristics. These properties effectively reduce noise, improve operational efficiency, and ensure long-term reliability.

Performance Characteristics

Superior Corrosion Resistance: Performs exceptionally well in humid and corrosive environments.

High Surface Finish: Excellent surface quality reduces rolling friction and enhances the overall efficiency of the ball cage.

High-End Suitability: Despite higher production costs, 440C steel balls are irreplaceable in premium equipment and extreme environments.

Comparison of Applications

Environmental Conditions

Bearing steel balls are ideal for dry or well-lubricated environments, such as consumer electronics, industrial machinery, and precision instruments.

440C steel balls excel in humid, highly corrosive environments or those with strict hygiene requirements, such as food machinery, medical equipment, and marine engineering.

Load and Speed Requirements

Bearing steel is more suitable for high load and high-speed conditions due to its excellent fatigue resistance and wear properties.

440C steel balls are better suited for moderate load and corrosion-prone environments requiring long-term operational stability.

Cost and Volume Production

Bearing steel offers superior cost-effectiveness, making it the preferred choice for large-scale industrial production.

440C steel, while more expensive, is indispensable in high-end, specialized applications where performance outweighs cost considerations.

Conclusion

Our bearing steel and 440C 1mm steel balls both meet the highest international precision standards, ensuring reliable performance in micro ball cage applications.

Bearing steel balls provide excellent hardness, wear resistance, and affordability, making them the top choice for industrial-scale production and applications in low to medium corrosion environments.

440C steel balls offer unmatched corrosion resistance and high precision, meeting the demands of high-end equipment and challenging environments.

With our large-cycle production process and strict quality control system, we guarantee consistent product quality, long-term supply stability, and on-time delivery. Whether for high-volume industrial applications or high-end custom equipment, our products provide the best solutions tailored to your needs.