Shanghai Yisio Trading Co., Ltd. has provided a comprehensive explanation of the materials and properties of its bearing products, demonstrating its professional technology and innovative strength in the field of bearing manufacturing.

As a key component in mechanical equipment, the quality of a bearing’s component materials directly determines its service life, reliability and performance. Shanghai Yisio Trading Co., Ltd. widely adopts high-performance materials in bearing manufacturing to meet application requirements under different working conditions.

For bearing retaining rings and steel balls, the company selects GCr15 high-carbon chromium bearing steel, the most widely used grade. This material delivers excellent performance, ensuring stable operation of bearings under various complex working conditions. The chemical composition reference table of GCr15 shows that the rational ratio of carbon, silicon, manganese and other elements gives the material outstanding comprehensive properties.

In the field of stainless steel bearings, the company offers a diversified selection. The inner and outer rings and balls of stainless steel bearings usually adopt 9Cr18Mo, 9Cr18, AISI440C and AISI440 stainless steel. Other raw materials can also be used according to customers’ specific requirements. The cages and sealing covers of stainless steel bearings are generally made of AISI314 and AISI316 stainless steel.

These stainless steel materials feature unique performance advantages. Compared with ordinary bearings, stainless steel bearings can adapt to a wider range of environments where standard bearings cannot meet requirements, such as acid resistance, corrosion resistance, and service in corrosive media including seawater, river water, distilled water, dilute nitric acid, marine climate and steam. They also feature excellent temperature resistance, with an operating range of -70°C to 350°C.

Notably, the company’s hybrid ceramic ball bearings demonstrate outstanding performance. Hybrid ceramic ball bearings combine the advantages of ceramic balls and metal components (such as bearing steel or stainless steel). Ceramic balls feature low thermal expansion, oil-free self-lubrication, electrical insulation, lightweight design and low friction.

For example, their operating temperature can reach above 220°C, rotational speed is normally more than 1.5 times that of ordinary bearings, and service life is 2–3 times longer. They can continue operating even when grease is depleted. These characteristics make hybrid ceramic ball bearings perform excellently under extreme conditions such as high-frequency current environments, poor lubrication or high temperatures, significantly improving equipment reliability and durability.

In addition, the company produces electrically insulated bearings, solid-oil bearings, tapered roller bearings, cylindrical roller bearings and other types to meet the diversified needs of different industries and equipment. Electrically insulated bearings effectively prevent electric current from passing through the bearing and avoid electrical erosion; solid-oil bearings adopt special lubrication technology to reduce maintenance and prevent lubricant contamination; tapered roller bearings and cylindrical roller bearings are suitable for applications with high combined loads and heavy radial loads respectively.

With mastery of the full industrial chain manufacturing technology for bearings and precise control over the materials and properties of various bearings, Shanghai Yisio Trading Co., Ltd. provides high-quality bearing solutions for aerospace, automotive, railway, food equipment, precision instruments and many other fields. In the future, the company will continue to uphold the spirit of innovation, continuously improve product quality and technical level, and contribute more to the development of the industry.

Shanghai Yisiou Trading Co., Ltd. is a powerful enterprise with a registered capital of 5 million RMB. Its product matrix includes ceramic bearings, hybrid ceramic bearings, solid oil bearings, tapered roller bearings, cylindrical roller bearings, etc. The products are widely used in aerospace, automotive and other fields, and have reliable performance under extreme conditions. The company is customer-centric and holds an important position in the industry.