SKF linear motion in this category differs from bearings for rotation because the request begins with travel along a guide or shaft. The catalog contains LBC references and units from other series. Identifying a replacement requires recognizing the moving part, its guide and the portion of the assembly being replaced.
A diameter or exterior photograph is insufficient. Preserve the initial letters, numeric portion and any additional designation block. Photographing the unit together with its guide connects that marking to the installed arrangement. For a machine with several motion axes, distinguish each position so that codes from different assemblies remain separate.
Send the complete reference, quantity and photographs of the component, markings and fastening arrangement. Add verified dimensions, application and an available parts drawing. Clarify whether the request concerns a guiding component or its complete assembly. For a different configuration, describe the travel and intended mounting from the equipment documentation; exterior resemblance alone does not establish that two units suit the same installation.