Import Ball Bearing Disc Belleville Spring (Plain) — Buy in Bulk from Supplier in China

The plain disc belleville spring from Yangzhou Sunzo Spring Ind.Co., Ltd. is a conical washer designed to provide high axial load capacity with minimal space requirements. This component is manufactured from 50CrV4 or 60Si2MnA spring steel, standard materials for belleville springs due to their high yield strength and fatigue resistance. The plain design, without slots, offers uniform load distribution and is suited for static or low-frequency dynamic applications.

Typical dimensions for this spring include an outer diameter of 50 mm to 200 mm, with a standard thickness range of 1 mm to 6 mm and a cone height of 3 mm to 12 mm, depending on the load and deflection requirements. The spring’s deflection characteristics are defined by its h0/t ratio (free height to thickness), with values between 0.4 and 1.5 typical for industrial use. Surface treatments such as zinc plating or phosphating are standard to enhance corrosion resistance.

These springs are commonly used in bolted connections, valve assemblies, and bearing preload applications where precise axial force is critical. Yangzhou Sunzo Spring Ind.Co., Ltd. supplies them in bulk, with packaging usually in cartons or wooden cases to prevent deformation during transit. Buyers confirm incoterms such as FOB Yangzhou and payment methods like T/T, with lead times varying based on production schedules.

Yangzhou Sunzo Spring Ind.Co., Ltd. is located in Yangzhou, Jiangsu Province, with its office at Room 501 in the Kaixuan Building. The company specializes in the production and supply of disc springs, including belleville springs, for industrial applications. Its harbor trust tier indicates a verified business presence in China, though no additional certifications or production details are listed in its profile.

The supplier does not provide a response rate or average response time, so buyers should expect to follow up directly for technical or logistical inquiries. Yangzhou Sunzo Spring Ind.Co., Ltd. focuses on standard disc spring models, and its ability to handle custom specifications or non-standard materials should be confirmed prior to ordering. The company’s primary market appears to be domestic and export buyers requiring reliable spring components for machinery and equipment.