Linear Bushing is a high precision linear motion rolling guide which travels along the shaft to achieve endless linear motion. In the external cylinder, a retainer , steel balls, end plates etc. are compactly incorporated. Wide variations in size are available for selections suitable for each applications. For each dimensional series, standard adjustable clearence and open types are available with and without seals so the best linear bushing for the applications may be selected. Sizes available from Bore: 2mm to 100 mm Inches: 1/4 " to 4 " Series: LBD , LBE, LM (Steel cage) Inches: LBB , LMB (Steel Cage) Open type: LBD ..OP Adjustable: LBD ..AJ Sea.