Linear Guides

About these articles Precision for CNC and automation: The HGR20 rails with RM1605 recirculating ball screws and matching ball nuts deliver backlash-free linear motion with low frictional torque – ideal for milling, engraving, positioning, and metrology. The ground raceways of the carriages distribute loads evenly and ensure smooth running, even over long strokes of 1000 mm to 1700 mm. Alternatively, the SFC16 and SFC20 round shafts with SC sliding blocks offer high repeatability for router slides, 3D printers, lasers, and DIY axes. Robust materials and surfaces: The rails and carriages are made of GCr15 carbon or bearing steel with a chrome-plated surface for high corrosion protection and hard raceways up to approximately HRC62. The combination of a tough core and hard outer layer increases service life and dimensional stability under continuous load. Well-designed complete kit: The HGR20 packages come ready-to-assemble with two rails, four carriages, an RM1605 spindle of the appropriate length, a BF12 ball nut, a BK12 end bearing, and a flexible plumb coupling, e.g., 6.35 x 10 mm or 8 x 12 mm. The machined spindle ends fit directly onto the bearing blocks for quick installation. Easy assembly & smooth operation: M4 x 16 mm mounting holes on the HGR rails and precise hole patterns on the SC blocks and brackets speed up installation. The carriages are pre-assembled and can be mounted directly after the rails have been aligned. Good parallelism of the rails and clean alignment of the end bearings increase smoothness and reduce vibrations during operation. The friction coefficient remains low, allowing smaller drives and sensitive movements. Wide range of applications: From CNC gantries, tool and measuring tables, and feed axes in fixtures to 3D printers and laser plotters – the sets cover many applications that require linear movements with smooth guidance. The HGR20 with recirculating ball screw is recommended for precise positioning and high rigidity with long strokes of 1000–1700 mm. The SFC round shaft systems are ideal for quick conversions and projects with moderate loads, such as trainer rocker plates, camera slides, router tables, or DIY automation. Specifications HGR20 Set 1000 mm: 2 x HGR20 rails 1000 mm • 4 x blocks • 1 x RM1605 ball screw 1000 mm machined. ends • 1 x RM1605 ball nut • BF12 BK12 end supports • Plum coupling • Material GCr15 bearing steel • Mounting holes M4 x 16 mm • Static load rating 25.31 • Perm. static torque 0.17 kN m • Block dimensions 7.3 x 4.2 x 3.4 cm • Net weight 11 kg HGR20 set 1500 mm: 2 x HGR20 rail 1500 mm • 4 x block • 1 x RM1605 ball screw 1500 mm with backstop • 1 x ball nut • BF12 BK12 • Plum coupling 6.35 x 10 mm • Material GCr15 • M4 x 16 mm • Static load rating 25.31 • Perm. stat. Torque 0.17 kN m • Block dimensions 7.3 x 4.2 x 3.4 cm • Net weight 8 kg HGR20 set 1700 mm: 2 x HGR20 rail 1700 mm • 4 x block • 1 x RM1605 ball screw 1700 mm • 1 x RM1605 ball nut • BF12 BK12 • Plum coupling 8 x 12 mm • Material GCr15 • M4 x 16 mm • Static load rating 25.31 • permissible static. Torque 0.17 kN m • Block dimensions 7.3 x 4.2 x 3.4 cm • Net weight 12 kg SFC16-1000 Set: 2 x SFC16 round shaft 1000 mm • Ø16 mm • 4 x SC16 sliding blocks • 4 x shaft supports • Dynamic load per block 774 N • Static load 1180 N • Materials: high-carbon steel and aluminum • Sliding block 44 x 50 x 38.5 mm • Product dimensions 1000 x 96 x 44 mm • Net weight 5.1 kg SFC20-1000 Set: 2 x SFC20 round shaft 1000 mm • Ø20 mm • 4 x SC20 sliding blocks • 4 x shaft supports • Dynamic load per block 882 N • Static load 1370 N • Materials: high-carbon steel and aluminum • Sliding block 50 x 54 x 41 mm • Product dimensions 1000 x 120 x 51 mm • Net weight 3.3 kg SFC20-1200 Set: 2 x SFC20 round shaft 1200 mm • Ø20 mm • 4 x SC20 sliding blocks • 4 x shaft supports • Dynamic load per block 882 N • Static load 1370 N • Materials: high-carbon steel and aluminum • Sliding block 50 x 54 x 41 mm • Product dimensions 1200 x 120 x 51 mm • Net weight 7.1 kg Scope of delivery HGR20 1000: 2 x HGR20 1000 mm linear guide rails • 4 x carriage blocks • 1 x RM1605 1000 mm ball screw • 1 x ball nut • 1 x BF12 BK12 end support set • 1 x plum coupling HGR20 1500: 2 x HGR20 1500mm Linear Guide Rails • 4 x Slide Blocks • 1 x RM1605 1500mm Ballscrew • 1 x Ball Nut • 1 x BF12 BK12 End Support Kit • 1 x Plum Coupling HGR20 1700: 2 x HGR20 1700mm Linear Guide Rails • 4 x Slide Blocks • 1 x RM1605 1700mm Ballscrew • 1 x RM1605 Ball Nut • 1 x BF12 BK12 End Support Kit • 1 x Plum Coupling SFC16-1000: 2 x SFC16 1000mm linear shaft • 4 x SC16 slide blocks • 4 x rail supports SFC20-1000: 2 x SFC20 1000mm linear shaft • 4 x SC20 Slide blocks • 4 x rail supports SFC20-1200: 2 x SFC20 1200 mm linear shafts • 4 x SC20 slide blocks • 4 x rail supports