Maintenance-free bearings can run stably without maintenance from installation to failure. They are designed with optimized raceway geometry, surface finish, retainers, high - performance steel, unique heat treatment, and high - precision balls to reduce grease consumption. Benefits include less maintenance, lower lubricant use, less pollution, and quick cost - offset. They suit hard - to - relubricate applications.

Rangyun Technology keeps moving forward. We are always committed to the development, design, experimentation, validation, and application of bearings for new products, materials, and applications, just to provide customers with the most innovative bearing solutions and products.

Rangyun Technology always adheres to the principles of persistence, integrity, and innovation, focusing on how to make bearing movement more scientific, how to accelerate bearings more scientifically, and how to extend bearing life more scientifically. We break through limits in the cycle of life, aiming to overcome all unknowns, uncertainties, and unpredictables.