Specification Brand : HARFINGTON BulletPoint1 : Size - The round hole shaft collar is 2-1/4 inch outside diameter, 9/16 inch wide (thick) for 1-3/8 inch rod. Double-split design collar provides a firm and stable fit onto the shaft, preventing components from sliding or moving out of position without damaging the shaft. BulletPoint2 : Material - Each hole collar is made of carbon steel, high strength, strong locking force, black oxide plating anti-corrosion and durability. Round bore collars are common use as positioners, spacers, stops and bearing surfaces. BulletPoint3 : Usage - Quickly installed by sliding the collar onto the shaft and tightening the set screw, it can be easily removed or adjusted, reducing downtime. BulletPoint4 : Applications - Clamping collars are suitable for various machinery and industries, such as drive shafts, agricultural implements, gearbox assemblies, motor bases, machine tools, steel plant equipment, the automotive industry, manufacturing and other industries. BulletPoint5 : Package Contents - You will receive 1pcs shaft collar and 2pcs set screws. Using high-strength inner hexagonal screws, the locking force is strong, stable and firm without slipping. Color : Black ExteriorFinish : Black Oxide ExternallyAssignedProductIdentifier1 : 0783710142153 ExternallyAssignedProductIdentifier2 : 783710142153 ItemDisplayWeight : 0.73 pounds ItemName : HARFINGTON Shaft Collar for 1-3/8" Rod 2-1/4" OD 9/16" Width Black Oxide Plating Double Split Axle Clamp-On Collar with Set Screw ItemPackageDimensions_Height : 16.9 centimeters ItemPackageDimensions_Length : 3.6 centimeters ItemPackageDimensions_Width : 7.5 centimeters ItemPackageQuantity : 1 ItemShape : round ItemTypeKeyword : clamp-on-shaft-collars Manufacturer : HARFINGTON Material : carbon steel ModelNumber : SCA-D16-E28-B12 NumberOfItems : 4 PartNumber : hta230713hh000105 ProductDescription : Each hole collar is made of carbon steel, high strength, strong locking force, black oxide plating anti-corrosion and durability. Round bore collars are common use as positioners, spacers, stops and bearing surfaces. Double-split design collar provides a firm and stable fit onto the shaft, preventing components from sliding or moving out of position without damaging the shaft. Using high-strength inner hexagonal screws, the locking force is strong, stable and firm without slipping. Quickly installed by sliding the collar onto the shaft and tightening the set screw, it can be easily removed or adjusted, reducing downtime. Clamping collars are suitable for various machinery and industries, such as drive shafts, agricultural implements, gearbox assemblies, motor bases, machine tools, steel plant equipment, the automotive industry, manufacturing and other industries.