1 pc SBR12UU linear bearing Key features - 12 mm open block design for straightforward mounting and alignment - Linear bearing slide intended for CNC router use - Provides smooth linear movement with reliable guidance - Compact 12 mm form factor suitable for tight installations - Designed to work as a linear slide to support precise motion What you get - 1 piece SBR12UU linear bearing Benefits and why you need it - Improves motion quality: delivers smooth, low-friction linear movement for better cut quality and repeatability - Easy installation: open block design simplifies mounting and alignment in CNC router projects - Versatile compatibility: sized for standard 12 mm motion systems, enabling easy integration into existing setups - Durable performance: built to function as a dedicated linear slide for dependable operation in routine CNC tasks Compatible applications and use scenarios - CNC router gantry sliding: use on the X or Y axis to achieve stable, precise gantry movement - Z-axis linear slide upgrade: replace worn or inconsistent bearings to restore smooth vertical motion - Small automation and DIY machines: suitable for 12 mm shaft and rail systems in hobby or light-industrial projects such as milling, engraving, or automated positioning tasks Summary A single SBR12UU linear bearing with a 12 mm open block design that serves as a reliable linear slide for CNC router applications, delivering smooth, precise movement and straightforward installation.