Martin Sprocket & Gear Incorporated SF-BB Idler Bushing is a dedicated replacement part from Martin Sprocket & Gear, designed for use in idler assemblies. The SF-BB designation identifies the model within Martin's line of idler bushings. As an idler bushing, it serves as the bearing surface in an idler configuration when paired with the appropriate shaft and housing, helping maintain proper clearance and alignment in driven systems that require the SF-BB part.
