The SBR45SLL is a linear guideway product by SBC, engineered to offer high - performance linear motion solutions. I. Model and General Information The model SBR45SLL is part of SBC's range of linear guideways, designed to meet specific requirements in terms of load - bearing capacity, dimensional compatibility, and motion precision. Overall Dimensions: The mounting dimensions are crucial for proper installation. The height (H) is 70mm, the width (W) is 86mm, and the length (L) for the mounting structure is 179.8mm. These dimensions help users accurately plan the installation space within their machinery or equipment. Installation Structure: The installation structure dimensions such as the distance between key mounting points (E), hole spacings (B), and specific position dimensions (J, J1) are precisely designed. The mounting tap hole has a thread specification of M10. This standard thread size ensures a secure connection when using the appropriate bolts, providing stability during operation. The related dimensions for the mounting holes, such as DP and Dt, also contribute to the overall installation accuracy. III. Block Dimensions Length: The length of the block (L1) is 133.8mm. This length affects the contact area with the rail and plays a significant role in distributing loads evenly, ensuring smooth and stable linear movement. Height Tolerance and Other Dimensions: The height tolerance (T±) and other structural dimensions like K and T1 are carefully controlled. These dimensions contribute to the overall rigidity and alignment of the block on the rail, allowing for precise linear motion. The outer shape and key dimensions of the block, denoted as A, W1, W2, and H1, are also designed to fit specific application requirements, providing compatibility with other components in the system. IV. Rail Dimensions Width: The width of the rail part (F) is 50mm. This width is optimized to support the block's movement and withstand the applied loads. Bolt Holes: The bolt holes on the rail have a diameter (d) of 14mm and a depth (h) of 20mm. The spacing between the bolt holes (G) is 19mm. These bolt hole dimensions are designed to securely fasten the rail to the supporting structure, ensuring that the rail remains in place during operation. V. Maximum Rail Length The maximum length of the rail (LO) can reach up to 4000mm. This long - length option makes the SBR45SLL suitable for applications that require extended linear travel, such as in large - scale machinery, automated production lines, or precision - positioning systems. VI. Load - Bearing Capacity Basic Load Rating: The basic dynamic load rating (C) is 119.5kN. This means that during dynamic motion, the guideway can effectively handle loads of up to this value without significant wear or performance degradation. The basic static load rating (Co) is 242.2kN, ensuring excellent stability when the guideway is in a stationary state, capable of withstanding high static loads. Permissible Static Moment: In terms of permissible static moment, the longitudinal torque under static load (Mto) is 3.29kN - m, and under dynamic load (Mt) is 2.44kN - m. The transverse torque under static load (MLO) is 6.67kN - m, and under dynamic load (ML) is 4.95kN - m. These values are important for applications where moments and torques are applied to the guideway, as they help in determining the guideway's ability to maintain its integrity and performance under complex loading conditions. VII. Mass The rail has a mass of 10.7kg per meter. This mass information is crucial for system designers to calculate the overall weight of the linear motion system. It helps in assessing the impact on the supporting structure, as well as in determining the energy requirements for moving the system, especially in applications where the length of the rail used is significant.