3D Printer Part and Spares for DIY and Industrial Builds

Hiwin HGH30 Linear Guide Block is a square-type carriage designed for HGR30 rails. Built from hardened bearing steel with precision-ground raceways, it delivers high load capacity, excellent rigidity, and smooth, low-friction motion with minimal vibration. The square design provides balanced load distribution in all directions, while end seals and a sealed ball circulation system protect against dust. Pre-lubricated and grease-lubricated for easy installation; compatible with CNC machines, automation systems, and other precision linear assemblies.

• Square-type block for balanced load in all directions
• Compatible with HGR30 (30 mm) rails
• Hardened bearing steel with precision-ground raceways
• Sealed ball circulation system for dust protection
• End seals for dust protection and longer service life
• Pre-lubricated; grease-lubricated for easy installation
• Top mounting design suitable for horizontal and vertical orientations

Hiwin HGW15 Linear Rail Block is a wide-body, 15mm heavy-load block designed for HGR15 rails. It delivers enhanced rigidity and higher moment load capacity with a wider mounting base to resist twisting and side loads. Built from hardened bearing steel with recirculating steel balls for smooth, low-friction motion; features top mounting holes and pre-greased (re-lubricatable) lubrication. Ideal for CNC machines, laser systems, 3D printers, and automation.

• Wide-body HGW15 block for 15mm HGR15 rails
• Wider mounting base increases rigidity and resists twisting
• Hardened bearing steel construction for wear resistance
• Recirculating steel balls provide smooth, low-friction motion
• Top mounting holes; pre-greased and re-lubricatable
• Applications: CNC machines, laser cutters/engravers, industrial automation, 3D printers
• Includes 1 piece Hiwin HGW15 block