Durable Construction - Made of zinc-plated carbon steel, hollow style, lightweight, corrosion-resistant, and durable. Round bore collars are commonly used as positioners, spacers, stops, and bearing surfaces.Adjustable Positioning - The set screw design allows for adjustable positioning along the shaft. This flexibility enables fine-tuning and precise alignment of components to achieve optimal functionality and performance.Various Applications - These collars are widely used across different industries, including automotive, robotics, shipbuilding, machinery, and appliances, where a lightweight yet durable bearing solution is required.Easy Installation - These collars are easy to install on the shaft. Simply slide the collar into the desired position and tighten the set screw using a compatible hex wrench. No additional tools or disassembly of other components are required.Easy Installation: These collars are easy to install on the shaft. Simply slide the collar into the desired position and tighten the set screw using a compatible hex wrench. No additional tools or disassembly of other components are required.