Linear motion guide assembly consists of rail, block, balls, retainer, recirculator(reverse unit), sealing gasket and side panel. When the block moves in a linear direction relative to the rail, balls run along four raceway grooves which have been quenched and precisely finished. In the top of the block, balls again pass through the recirculator(reverse unit) into reciprocating hole then into raceway repeatedly. The recirculator(reverse unit)
 

Description: XBD series linear guideway is possessed with high load capacity and high rigidity because of the four rows design. It also features the same load in four directions and self-aligning capability to absorb installation-error which can achieve high accuracy. Besides, the lower assembly height and the shorter length make the XBD series linear guide more suitable for the  high-speed automatic machines and the applications where space limit is considered.