Resin Dust Covers: The Eco-Friendly Series of diamond-flanged, eccentric ring-locked spherical outer ball bearings are manufactured using environmentally compliant materials and processes that leave no harmful residues. The entire production process meets environmental standards, making them suitable for applications in the food, pharmaceutical and light industrial sectors where hygiene and environmental requirements are stringent. Fitted with a resin dust cover, these bearings offer excellent sealing performance, effectively preventing dust, impurities and moisture from entering the bearing interior. This extends the product’s service life whilst maintaining bearing cleanliness, meeting the requirements for hygienic applications. The compact design of the diamond-shaped flange housing is suitable for applications where installation space at the equipment end face is limited, ensuring easy installation and secure positioning; the eccentric ring locking mechanism is simple to operate, providing uniform and stable locking force, effectively preventing loosening during bearing operation, and enabling efficient and convenient disassembly and maintenance. The product features excellent self-aligning capabilities, allowing flexible compensation for installation misalignment and shaft alignment errors. It operates smoothly with low noise and offers high wear resistance and durability. Combining environmental friendliness, sealing performance and practicality, it is widely used in transmission components of environmental protection equipment, automated conveying systems and food processing machinery, where both environmental standards and cleanliness, as well as transmission stability, are critical requirements.