Precision Spheres for Technical and Industrial Users
This copper-gold steel ball in 0.8mm and 1.0mm sizes is engineered for manufacturers, engineers, and technical users who demand consistent, small-diameter spheres with superior mechanical properties. The design caters to applications that require robust, uniform steel balls with stable hardness and excellent surface finish for optimized assembly integration. Users benefit from enhanced corrosion resistance due to copper plating, providing a solution suitable for environments where both durability and precision are paramount within various mechanical and electronic assemblies.
Compliance-Driven Manufacturing with High Hardness Standards
Constructed from tin steel with a refined copper-gold plating, these balls achieve a hardness rating of HB35-45, ensuring long service life and wear resistance under operational stress. Polished to precise uniformity and certified to ISO and RoHS standards, the balls meet stringent dimensional and material specifications (G1000 grade). Their smooth surface finish reduces friction and wear in high-precision bearings and devices. The consistent quality control and material composition guarantee performance stability in demanding engineering settings.
Applications in Mechanical Assemblies and Precision Devices
These copper-gold steel balls are utilized extensively in bearing balls manufacturers’ assemblies, precision tool calibration, automotive sliding mechanisms, and electronic components requiring miniature spheres. Their corrosion-resistant copper plating extends operational lifespan in humid or chemically aggressive environments. The product supports manufacturing workflows that depend on high-accuracy, durable steel balls and integrates seamlessly into automated assembly lines, ensuring reliability and efficiency across diverse technical industries.
Product Advantages
Innovative Design and Structural Integration
The copper-gold steel ball features a dual-material construction combining a tin steel core with copper plating, designed to optimize corrosion resistance without sacrificing hardness or mechanical strength. This design enables compatibility with existing assembly line components, including those manufactured by leading bearing balls manufacturers. The structural consistency supports modular integration into various mechanical systems, improving durability and reducing maintenance cycles. Its uniform sizing, with tolerances adhering strictly to G1000 grade, contributes to precise system calibration and stable operation within industrial assemblies.
Enhanced Performance, Durability, and User Efficiency
High hardness and polished surfaces reduce wear and friction, directly improving the operational lifespan of components utilizing these steel balls. Their corrosion resistance minimizes downtime due to environmental degradation. Users benefit from improved maintenance intervals and reliable system performance, with the product’s consistent quality supporting critical manufacturing and repair workflows. Efficient packaging options and substantial monthly supply capacity ensure uninterrupted availability for production lines requiring prompt replenishment of precision steel balls.
Use Scenarios
Precision Bearings in Automotive and Mechanical Manufacturing
Within automotive and mechanical engineering environments, copper-gold steel balls serve as critical components in precision bearing assemblies where dimensional accuracy and material hardness underpin system reliability. These balls can endure sliding contacts and rotational stresses while resisting corrosion from lubricants and moisture. Their integration enhances bearing performance, lowers friction coefficients, and maintains operational tolerances essential for automotive drivetrains and industrial equipment. Their consistent quality supports manufacturers looking for certified bearing balls manufacturers to supply reliable high-performance steel balls.
Integration in Electronic Components and Testing Devices
In environments focused on electronic instrumentation and quality control, copper-gold steel balls function as precision parts for miniature mechanisms, switches, and calibration standards. Their polished surface and uniform hardness enable smooth mechanical responses and accurate dimensional conformity. The corrosion-resistant copper plating ensures sustained performance in varying atmospheric conditions. These balls align with stringent industry standards, facilitating their deployment in sensitive electronic assemblies and testing devices, providing reliability and repeatability requisite for production and diagnostic workflows.
1. Established in 1998. Has 20 years of experience in production and marketing.
2. Possesses SGS/ROHS certification and an excellent management team.
3. Advanced production and testing equipment.
4. Fixed assets of over 10 million yuan.
5. Technical personnel with more than 10 years of production experience.
6. Our warehouse is located in a national AAAAA-level logistics park, which offers large inventory and fast delivery.
Based on 7.40% of domestic market sales.
8. High reputation, with a large number of customers from all over the world.
We sincerely look forward to establishing partnerships with any client at any time.
Copper-plated tin steel balls
Gcr15, AISI52100 chrome steel ball :
Application areas:
It is commonly used in bicycles, bearings, motorcycles, automobiles, slide rails, ISBs, luggage, electronics industry, etc.
Function:
high speed
low price
High hardness, HRC: 60-66
Chemical and physical composition of Gcr15, AISI52100 chromium steel balls
| C | 0.95-1.10% |
| Si | 0.15-0.35% |
| Mn | Maximum 0.50% |
| P | Maximum 0.025% |
| S | Maximum 0.025% |
| Cr | 1.30-1.60% |
Photo shows
Packaging details: Carton packaging, woven bags, cartons + pallets, rollers, or packaging according to customer requirements.
Delivery details: 3-5 days after order, depending on order quantity.
Our certification
Production process
Steel ball testing
The hardness of steel balls is generally tested using a Rockwell hardness tester, and is usually expressed as HRC+ value.
1. The hardness of bearing steel balls is generally HRC60-66;
2. The hardness of stainless steel balls is generally around HRC26;
3. The hardness of carbon steel balls is generally HRC55-65;
4. The hardness of a soft carbon steel ball is approximately HRC30;
G5 and G10 high-precision steel balls are mainly used to measure ellipticity, that is, the spherical error of the ball, which is mainly detected by a roundness meter. Through its measurement, a computer can draw a very precise trajectory, thereby determining whether the ellipticity is correct.
The most important aspect of measuring steel balls is the tolerance, which is checked using a micrometer or a spiral micrometer. Large steel balls are measured using vernier calipers.
