- Easy to install: With spring fixing, assembly is straightforward. Just push the spring in or pull it from the opposite side to install the roller into the conveyor frame. - Spring fixed bearing for heavy-duty use: The roller is built for strict industrial conditions and great for transporting or moving heavy objects. Maximum load capacity: 80 kg / 170 lbs. It features spring bearings inside with a shaft diameter of 12 mm. - Portable replacement roller: Designed for busy workshops, the built-in spring enables more convenient installation and removal. After receiving the new roller, simply press the spring and insert it directly to save time and energy. - Durable and quiet: The zinc-coated surface provides enhanced anti-rust protection for long-term use, while quiet operation and minimal vibration help keep work smooth and efficient. Use scenarios: - On a production line to move heavy components between workstations with minimal downtime. - In a warehouse to transport or reposition bulky items and to replace conveyor rollers quickly during maintenance. - In general repair or maintenance tasks where fast roller replacement reduces equipment downtime.