Compact Linear Bushing is a linear motion rolling guide, incorporated steel balls and a retainer compactly in an external cylinder which is made from a thin special-steel plate by precision drawing, carburizing and quenching. It can be used to greatly reduce the size and weight of linear motion part of a machine, because its sectional height is as small as 4 to 5 mm and it is mounted directly on the shaft which is used as the race way .Steel balls are guided accurately by the retainer, so frictional resistance is small and a highly accurate linear motion can be obtained. Sizes available from Shaft Dia: 16 mm to 30mm Series: LK 1630 (KH 1630) , LK1630 UU (both side Sealed)..