Introducing our factory-made product - the ABEC-5 Wheelchair Bearing Z1 6817 RS Deep Groove Ball Bearings! Designed with precision and quality, these ball bearings are perfect for enhancing the smoothness and durability of your wheelchair. Crafted to ABEC-5 standard, they ensure reliable performance and reduced friction. Meeting the needs of wheelchair users, these deep groove ball bearings offer exceptional load capacity and are sealed with RS to prevent dust and dirt intrusion. Trust our factory's expertise and enjoy improved mobility with our top-notch wheelchair bearings!