GoTo Miniature Products, Runner Blocks and Rail - Ships in 24 Hours1 Miniature Ball Rail Systems were developed specifically for high-precision applications, such as optical or electronic data processing systems, which require rolling element linear guideways with extremely compact dimensions and high load capacity. Features of Rexroth's Miniature Products include: - High load capacity in all directions of load application, including moments about all axes, due to construction with the largest possible ball size - Lubrication access from either front or side faces, dependent upon size - Optional stainless steel cover strip - All steel parts of the runner block and guide rail are made of rust and acid resistant material similar to ISO 683-17 / EN 10088 - Accuracy class available in the GoTo Program: H - Rail length limited to 1 meter To get details about Rexroth's GoTo Miniature Products, click on the part numbers below. To buy online, click on the eShop USA links below. Runner Blocks Part Number  Description  Buy Online  R044279301  Mini Runner Blocks 7, clearance  eShop USA  R044271301  Mini Runner Blocks 7, preload  eShop USA  R044289301  Mini Runner Blocks 9, clearance  eShop USA  R044281301  Mini Runner Blocks 9, preload  eShop USA  R044229301  Mini Runner Blocks 12, clearance  eShop USA  R044221301  Mini Runner Blocks 12, preload  eShop USA  R044259301  Mini Runner Blocks 15, clearance  eShop USA  R044251301  Mini Runner Blocks 15, preload  eShop USA  Rails Part Number  Description  Buy Online  R044570331  Mini Rails 7mm    R044580331  Mini Rails 9mm    R044520331  Mini Rails 12mm    R044550331  Mini Rails 15mm    Shipment/Quantity Info: All of the products listed above have a shipping time of 24 hours with 10 maximum quantity. 1 GoTo product focused delivery times are available only for the quantities and if applicable, the preferred options listed for the product. Order spikes can cause temporary extended lead times. If your need is critical please contact the factory for confirmed delivery times.