Model SSR-XTB Model No. (*1) See contamination protection accessory on 01-494. (*2) See 01-70. (*3) See 01-76. (*4) See 01-13. Note) This model number indicates that a single-rail unit constitutes one set. (i.e., required number of sets when 2 rails are used in parallel is 2 at a minimum.) Those models equipped with QZ Lubricator cannot have a grease nipple. When desiring a grease nipple for a model attached with QZ, contact THK. number LM block No. of LM blocks used on the same rail LM rail length (in mm) Applied to only 15 and 25 sizes Radial clearance symbol (*2) Normal (No symbol) Light preload (C1) Medium preload (C0) ' T ■ Symbol for LM rail jointed use Symbol for No. of rails used on the same plane (*4) Accuracy symbol (*3) Normal grade (No Symbol) High accuracy grade (H) Precision grade (P) Super precision grade (SP) Ultra precision grade (UP) 01-112 cn=c=hk To download a desired data, search for the corresponding model number in the Technical site.