Open type linear ball slide blocks from the SBR family are designed to provide smooth, precise linear guidance in compact actuation setups. This listing covers the SBR10UU, SBR12UU, SBR16UU, SBR20UU, and SBR25UU variants, sold as a 2 piece package with a reference to SBR13UU in parentheses. The blocks are built for open type guidance and are intended for easy mounting and maintenance along compatible rails. Key benefits Smooth and precise motion: low friction recirculating ball design for accurate linear guidance. Open type design: facilitates mounting, wiring access, and onsite maintenance. Paired supply: two blocks per package to support dualaxis or aligned parallel guidance. Broad size coverage: available across multiple SBR sizes (10, 12, 16, 20, 25 UU) to fit a range of applications. Reliable alignment: designed to deliver consistent performance in automation and positioning tasks. Key attributes Functionality: open type linear ball slide blocks for precise linear motion. Compatibility: compatible with SBR rails corresponding to the listed sizes (SBR10UU, SBR12UU, SBR16UU, SBR20UU, SBR25UU); listing notes SBR13UU in parentheses. Size: includes two pieces per package; available in SBR10UU, SBR12UU, SBR16UU, SBR20UU, and SBR25UU variants. Material: material details are not specified in the listing. Performance: intended to deliver smooth operation and reliable positioning in mechanical guidance applications. Specific use cases CNC machines and milling setups requiring precise X or Y axis guidance with two parallel blocks for stability. 3D printers or additive manufacturing platforms that need consistent linear motion along a supported rail. Automated assembly lines or pickandplace stations where easy access for mounting and maintenance of open type guides is beneficial. Notes This description reflects the product title and stated variations: SBR10UU, SBR12UU, SBR16UU, SBR20UU, SBR25UU Linear Ball Slide Block Open Type Guide 2Pcs, with a reference to (SBR13UU). Materials and exact mounting specifications are not detailed in the listing.