This is the SBI45 - FL - K2 runner block, part of the recirculating ball bearing and guideway assemblies by SBC. It features a flange design in a standard length. 1. Size and Dimensions The size of this guideway block is designated as 45. The width of the unit measures 120mm, which is carefully designed to ensure stable support and interaction with the associated components. The height on the rail is 60mm, contributing to the overall structural layout and compatibility within the linear motion system. Additionally, it has a length of 142mm, which is crucial for determining the contact area and load - distribution capabilities along the rail. 2. Preload and Precision It comes with a middle preload, which is optimized to enhance the rigidity and stability of the linear motion. This preload setting helps in reducing vibrations and ensuring smooth operation, especially when subjected to dynamic loads. The precision class of the SBI45 - FL - K2 is standard, meeting the general requirements for a wide range of industrial applications. It provides reliable and accurate linear movement, making it suitable for various machinery and equipment that demand a certain level of positioning accuracy. 3. Sealing and Material The sealing of this runner block is of the standard type. This sealing mechanism effectively protects the internal components, such as the recirculating ball bearings, from dust, debris, and other contaminants. The use of standard sealing ensures that the product can operate in normal industrial environments without the risk of premature wear due to external particles. The material used for its construction is steel. Specifically, the cage is cageless and full complement, which contributes to a higher load - carrying capacity. The steel material offers excellent durability, high strength, and good wear - resistance, enabling the product to withstand heavy loads and continuous operation over an extended period. This makes the SBI45 - FL - K2 an ideal choice for applications where long - term reliability and performance are essential, such as in industrial machinery, automation systems, and precision - positioning equipment.