ANWOK 2Pcs HGR20 800mm Linear Guide Rail + 1PCS SFU1605 850mm Ball Screw with BF12/BK12 Kit - CNC Machine Parts for Milling, Engraving, 3D Printing & DIY Projects - Anti-Backlash Ballscrew Set with DSG16H Nut Housing - WMB4158A1

Linear Rail Kits and Ball Screw Set Advantages of ANWOKIT Our shaft is made of steel and aluminum alloy. It is the perfect combination of spindle and aluminum bracket, The ball thread can run smoothly even under load, helping to achieve durable and high mechanical efficiency. The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked. High-precision, Low noise HGR20 Linear Guide Rail The CNC rail set is made of rigid steel and aluminum alloy. They are corrosion and wear resistant and suitable for harsh working conditions.The blocks are equipped with precise bearings that allow the blocks to slide freely and quickly on the rail. They are omnipresent in the field that requires high precision.Our linear motion set has fantastic quality and insulating property, a perfect choice for your machines. HGR20 Linear Slide Rail Specifications Material Carbon steel, Aluminium Alloy Dynamic base load rating 17.75 C(kN) Static base load Rating 27.76 C(kN) Guide Rail Width 20mm Height of Guide Rail 17.5mm HGH20CA Linear Slide 77.5mm * 44mm * 30mm Predrilling M5*16mm Performance Low-friction, Low-noise, Smooth Movement Wear Resistant & Long Service Life SFU1605 Ball Screw The stainless steel ball screw is characterized by high positioning accuracy and good repeatability.The recirculating ball screw is more wear-resistant, which significantly extends the life of the recirculating ball screw.Ball screws have extremely low friction resistance and are widely used in various commercial units and precision instruments. The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked. SFU1605 Ball Spindle Set Specifications Material Steel bearing, aluminium alloy Diameter 16mm Lead 5mm BK12 Support 60mm * 25mm * 43mm BF12 Support 60mm * 20mm * 43mm D25L30 Kupplung 6.35mm * 10mm Ball nut 52mm * 40mm * 40mm Nut housing 51 * 39 * 39mm How big is the pre-drilled hole fixed? Are they suitable for m4, m5 or m6 screws? The holes in the HGR 20 rails are for M5 Allen screws Is the material suitable for outdoor use, i.e. weather resistant? Stainless metal? Yes, they are made of high quality stainless steel, so you don't have to worry about rust when you use them outdoors. What size is the bearing cushion Block Top Hole Thread? The pitch is 5mm What screw size and distance do the holes in the rail have? The rails accept M5 socket head screws and the holes are 60mm center to center starting 30mm from the end.