Caged Ball LM Guide Model SSR

www.thk.ru thk-mail@ya.ru Тел. (495) 727-22-72SSR OUTLINEModel SSR - Product OverviewShoulder Height of the Mounting Base and the Corner RadiusNormally, the mounting base for theLM rail and the LM block has areference-surface on the side face ofthe shoulder of the base in order toallow easy installation and highlyaccurate positioning.The corner of the mounting shoulder must bemachined to have a recess, or machined to besmaller than the corner radius "r," to preventinterference with the chamfer of the LM rail orthe LM block.Model No.15X20X25X30X35XCorner radiusr (max)0.50.51.01.01.0Shoulder heightfor the LM railH13.85.05.58.09.0rShoulder for the LM railMaximum shoulder heightfor the LM blockrH1 H3rDShoulder for the LM blockH2 H3 D5.57.58.011.516.04.56.06.89.511.50.30.30.40.40.4rH2Unit: mmNote: When closely contacting the LM block with the datum shoulder, the resin layer may stick out from the overall width of the LM block bythe dimension D. To avoid this, machine the datum shoulder to have a recess or limit the datum shoulder's height below thedimension H2.Error Allowance in the Parallelism Between Two RailsThe table shows error allowances inparallelism (P) between two rails that will notaffect the service life in normal operation.Unit:mModel No. Clearance C0 Clearance C1 Normal clearance15X20X25X30X35X—2530354525303540503540506070Error Allowance in Vertical Level Between Two RailsThe values in the tables indicate the errorallowances in vertical level (S) between tworails per axis-to-axis distance of 500mm andare proportional to the axis-to-axis distances.Unit:mModel No. Clearance C0 Clearance C1 Normal clearance15X20X25X30X35X—80100120170100100120150210180180200240300