Specification Brand : uxcell BulletPoint1 : Size - BF15: 70 x 20 x 48mm/2.76 x 0.79 x 1.89 inch (L*W*H); BK15: 70 x 27 x 48mm/2.76 x 1.06 x 1.89 inch (L*W*H)). Applicable to 15mm diameter ball screw. BulletPoint2 : Material - The ball screw end support is made of quality bearing steel, which has the advantages of high strength, no deformation, high precision, and low noise. BulletPoint3 : Surface Electrophoresis - The surface of the ball screw kit uses electrophoresis treatment to improve corrosion resistance and surface smoothness, making the appearance smooth and beautiful. BulletPoint4 : Application - Ball screw is suitable for CNC, machine DIY, factory automation equipment, large transmission equipment, etc. BulletPoint5 : Package Includes - 1 set End Support Units (BK10+BF10), matching lock nut, and gasket. Color : black ItemName : uxcell Ball Screw BK15/BF15 End Supports with Metal Ball Screw Nut for CNC Machine 1 Set ItemPackageDimensions_Height : 2.44 inches ItemPackageDimensions_Length : 4.13 inches ItemPackageDimensions_Width : 2.76 inches ItemPackageQuantity : 1 ItemTypeKeyword : ball-screws Manufacturer : uxcell Material : Alloy Steel NumberOfItems : 2 PartNumber : a23103000ux0214 ProductDescription : Parameter: Ball screws End Supports inner hole diameter 15mm(0.59"), Length 70mm (2.76"), Height 48mm(1.89"). Size - BF15: 70 x 20 x 48mm/2.76 x 0.79 x 1.89 inch (L*W*H); BK15: 70 x 27 x 48mm/2.76 x 1.06 x 1.89 inch (L*W*H)). Applicable to 15mm diameter ball screw. Material: The ball screw end support is made of quality bearing steel, which has the advantages of high strength, no deformation, high precision, and low noise. Surface Electrophoresis: The surface of the ball screw kit uses electrophoresis treatment to improve corrosion resistance and surface smoothness, making the appearance smooth and beautiful. Application: Ball screw is suitable for CNC, machine DIY, factory automation equipment, large transmission equipment, etc. Package Includes: 1 set end support unit (BK15+BF15), nut x 1, and gasket x 1.