Page 8 of catalogue Precision rail guides of SKF Linearsysteme GmbH

Other products In addition to the Modular Range, the selection of SKF products also includes a wide variety of rail guides and rolling elements. LWM/LWV rail guides (see table on pages 38-40) LWM/LWV rail guides differ from the LWRM/LWRV guides of the Modular Range only in their external dimensions. Their internal geometry is identical and the same needle roller assemblies are therefore used. In contrast to LWRM/LWRV (two series), the LWM/LWV guides comprise 6 series up to a size of A x B = 80 mm x 50 mm. LWM/LWV rail guides are supplied as standard with holes of type 15, namely through holes with counterbore. If for design reasons it is necessary to screw both rails from the same side, then one of the rails should have holes of type 13, i.e. with thread insert. LWML rail guides (no table) The LWML rail guide consists of a modified LWM rail guide with the addition of an adjustment wedge. Used in conjunction with an LWV guide and a needle roller assembly this provides an adjustable guide unit. The inclination of the wedge surface is 1,5 % so that a displacement of the wedge by 1 mm brings about a 15 μm alteration in the height. LWML rail guides are supplied as standard with holes of type 15, i.e. through holes with counterbore. If required holes of type 13, i.e. with thread insert, are also available. LWML rail guides can be supplied to tolerance classes P10 and P5. These guides, as well as the appropriate needle roller assemblies and end pieces, are made to order. Because of the many permutations available, each part of an LWML/LWV rail guide must be ordered separately, e.g.:
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1 rail LWML 55200400 1 rail LWM 40200400 2 rails LWV 40200400 2 end pieces LWEML 4020 2 end pieces LWEM 4020 It should also be stated whether the holes should comprise righthand or left-hand threads. LWN/LWO rail guides (no table) LWN/LWO rail guides differ from the LWM/LWV rail guides only in height, width and attachment holes. The internal geometry is identical to that of the LWM/LWV guides, i.e. they have the same load rating. LWN/LWO rail guides are available in tolerance classes P10, P5 and P2 to order. LWW/LWZ flat rail guides (no table) LWW/LWZ flat rail guides are used in conjunction with LWR rail guides for incorporation in floating slides. LWW/LWZ flat rail guides and the appropriate rolling element assemblies and end pieces are available to order. LWJ/LWS flat rail guides (no table) LWJ/LWS flat rail guides are used in conjunction with LWRM/LWRV, LWM/LWV or LWN/LWO rail guides as non-locating linear guides. They are incorporated in floating slides. LWJ/LWS flat rail guides as well as the appropriate rolling element assemblies and end pieces are available to order. Special rail guides and recirculating roller assemblies In addition to the standard rail guides included in this catalogue, SKF also manufactures flat rail guides with recirculating roller assemblies as well as special rail guides to customer drawings for such applications as machine Tools, Handling systems

and robotics. Further information on these special versions and their availability will be supplied on request.