Standard LUCS/LUCE linear units have a similar design as LUCR/LUCD units. They offer adjustable clearance or preload of the units via the slotted housing functionality. Please use the clearance adjustment carefully as it has an impact on service life. LUCS units from size 8 mm to 80 mm are equipped with rigid LBCR linear ball bearings or plain bearings, while LUCE units from size 12 mm to 50 mm are supplied with self-aligning LBCD linear ball bearings. All units are factory pre-greased and can be relubricated if necessary via the grease fitting. The grease fitting is also used for the fixation of the bearing in the housing. Exception is the size 8 mm unit as it has bearings axially fixed with retaining rings.