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Bearing steel is used to manufacture balls, rollers, and bearing rings. Carbon bearing steel is widely used in household appliances and financial equipment. The chemical composition uniformity, non-metallic inclusion content and distribution, and carbide distribution of bearing steel are all subject to very strict requirements, making it one of the most demanding types of steel in all steel production.ย Our carbon bearing steel is meticulously engineered to deliver exceptional performance in high-load and high-wear environments. Designed for applications requiring superior strength and fatigue resistance, this steel is ideal for manufacturing bearings that withstand extreme pressures and extended use.
Carbon bearing steel is known for its lower cost compared to traditional bearing steels, making it a popular choice for applications where budget constraints are a priority and extreme durability is not necessary. However, it is important to understand the trade-offs involved:
Affordability:ย One of the primary advantages of carbon bearing steel is its low cost, making it an economical choice for non-critical applications.
Moderate Wear Resistance: While carbon steel bearings can perform well under light loads, their wear resistance is generally lower. In many cases, low-carbon steel bearings are only surface-hardened through carburizing, resulting in suboptimal durability.
Variable Quality: The quality and performance of carbon bearing steel can vary significantly. In some cases, the material may not harden properly during heat treatment, leading to poor wear resistance and performance.
Appropriate Application: Despite its limitations, carbon bearing steel is suitable for applications where extreme hardness and high-speed rotation are not required. It can be effectively used in machinery where the bearing load is low and the operating conditions are not severe.
Durability:ย Carbon steel bearings have a shorter service life due to lower hardness and wear resistance, making them less durable than conventional bearing steels.
Wear Resistance: These bearings often exhibit reduced wear resistance, especially in demanding applications. Low-carbon variants may not fully harden, leading to poor wear performance.
Application Suitability:ย While not ideal for high-demand environments, carbon steel bearings are sufficient for machinery that does not require high-performance materials.
Material Properties: The materials used in carbon steel bearings do not match the performance of standard bearing steels in terms of fatigue strength, hardness, and precision, limiting their use to less demanding applications.
Carbon steel bearings are widely used across various industries, including:
Diameter:ย 20-120mm
Length: 4000-9000mm
The above specifications are common sizes; we can provide custom services according to customer requirements.
| Carbon Bearing Steel | ||||
| NO. | Grade | Chemical Composition (Mass Fraction) /% | ||
| C | Si | Mn | ||
| 1 | G55 | 0.52~0.60 | 0.15~0.35 | 0.60~0.90 |
| 2 | G55Mn | 0.52~0.60 | 0.15~0.35 | 0.90~1.20 |
| 3 | G70Mn | 0.65~0.75 | 0.15~0.35 | 0.80~1.10 |
| Carbon Bearing Steel | ||||
| GB | ISO 683-17 | ASTM A866 | DIN | JIS |
| G55 | C56E2 | C56E2 | C55 | S55C |
| G55Mn | 56Mn4 | 56Mn4 | 55Mn4 | S55CMn |
| G70Mn | 70Mn4 | 70Mn4 | S70CMn | |
