Specification Brand : Yichu BulletPoint1 : Double Shaft Collar Bore Diameter: 1/2"(0.5 Inch / 12.7mm) ; BulletPoint2 : Outside Diameter : 1-1/8" (1.125 inch / 28.575mm) ;Width : 13/32"(0.40625 inch / 10.34875mm) BulletPoint3 : Material : Solid Carbon Steel with Black Oxide Coating; Collar Style: Clamp Outside ; BulletPoint4 : Superior fit, finish and holding power: Width tolerance: +.003”/-.010”; Bore tolerance: +.002”/+.0005" BulletPoint5 : Packing listing: 4 Pieces Bore 1/2" Double Split Shaft Collars ExteriorFinish : Black Oxide ExternallyAssignedProductIdentifier1 : 783710142146 ExternallyAssignedProductIdentifier2 : 0783710142146 ItemName : Bore 1/2 Inch Double Split Shaft Collar Black Oxide Set Screw Style Two-Piece Clamping 4Pcs ItemPackageDimensions_Height : 8.5 centimeters ItemPackageDimensions_Length : 1 centimeters ItemPackageDimensions_Width : 6.4 centimeters ItemPackageQuantity : 4 ItemTypeKeyword : clamp-on-shaft-collars Manufacturer : Carbon Steel with Black Oxide Material : Carbon Steel ModelNumber : 4 NumberOfItems : 4 PartNumber : 4 ProductDescription : Features: 1. The double opening shaft sleeve can be fixed on one side of rotating parts and used as an axial fixation for rotating parts; 2. Fix the fixed shaft on one end of the guide shaft as the stop of the Straight-line mechanism with the guide rail; 3. Side threaded holes or through holes can be used to connect the workpiece, and the fixed ring can be locked and connected to the workpiece, thereby playing a positioning role in the work; 4. As it is achieved by locking the shaft with open end screws, it can avoid damage to the shaft; 5. Compared to the fixed ring with a stop screw, the open type has a stronger tightening force This manufacture two-piece clamp shaft collars in Carbon steel with a proprietary black oxide finish. The two-piece shaft collar design is easily installed and disassembled, reducing labor and downtime when adjustment, removal, or replacement is necessary. Double Split shaft collars Suitable for nearly all types of machinery and industry, such as drive shafts, agricultural implements, gearbox assemblies, motor bases, machine tools