Hot sales 608 bearing roller single convex roller is a must-have product for anyone looking to replace their old, worn-out window rollers. Made with high-quality materials, this plastic window roller wheel with housing is robust, durable, and long-lasting. It features a single convex roller design that ensures smooth and easy window operation. The 608 bearing roller provides excellent load bearing capacity and reduced friction resistance, ensuring a smooth and quiet operation. Moreover, we are a factory that prides itself on producing only the best quality products. Our stringent manufacturing standards ensure that every product that leaves our facility is of the highest quality and meets our customers' specifications. With our extensive experience in the industry, we strive to provide our clients with the best product at a competitive price.