Size - for shaft: 14mm / 0.55inch, outer diameter: 35mm / 1.38inch, width: 12mm / 0.47inch. The set screw collar is a ring-shaped device. They can also be used as spacers between positioners, mechanical stops, and other components. Material - Made of 6061 grade aluminum alloy, and the surface is anodized, solid and durable, has good gloss, long service life. Provides good stability, high working performance, and durability. The two-piece design of the collar allows for better pressure distribution on the shaft, reducing the risk of damage or deformation. Feature - The set screw shaft collar has better holding force when the shaft material is softer than the set screw material, which can withstand low axial loads and simple positioning. Comes with a cup-point clamping screw to secure the collar to the shaft. Double-split collars are designed to be gentler on the shaft than one-piece collars. Application - Shaft collars are often used as stoppers, or to position and hold timing pulleys, etc. Good axial and radial support performance, durable choice for almost all types of machinery and industries, such as drive shafts, wheelbarrow axles, CNC machine tools, agricultural implements, gearbox assemblies, engine bases, rolling mill equipment, automotive industry, manufacturing industry. Use - Simply slide these collars onto a shaft and tighten the clamping screw to hold the collar in place. The collars are easy to adjust with their clamping screws. Effective on both hard and soft shafts.