D21 NOTES ON GUIDE ELEMENTS Precision slide guide, sintered ferrites This guide type consists of self-lubricating sintered ferrites with carbonitrided surface. The sintered material used has a porosity content of 18-20 by volume that is filled with an oil under vacuum. In ongoing operation, this oil enters the sliding zone, facilitating long-term lubrication (depending on the usage conditions). As initial and additional lubrication, a suitable grease can be filled into the supply grooves, which reduces the maintenance intervals. Carbonitriding - a case hardening process - considerably increases the wear resistance of the sliding layer. The precision ground running surface achieves very high quality in terms of dimensional and shape tolerances and low roughness. The guidance accuracy can be changed via pairing classification. For bearing clearance ranges, see chapter D. (1) Guide pillar (2) Sintered ferrite guide bush (3) Carbonitriding Precision slide guide, bronze-coated This guide type consists of a steel body with bronze-coated running surface with helical oil groove and a lubricating nipple for ongoing lubrication. The steel body used ensures a high level of intrinsic stability even with high side and edge loads due to its high tensile strength. The bronze running surface is optimally connected to the steel body and has very good emergency running properties. A permanent lubricant supply with grease is necessary for reliable continuous operation. The precision ground running surface achieves very high quality in terms of dimensional and shape tolerances and low roughness. (1) Guide pillar (2) Guide bushing (3) Bronze coating (4) Oil groove Slide guide, bronzeplated (ECO-LINE) This guide type consists of a steel body with bronzeplated running surface with helical oil groove and a lubricating nipple for ongoing lubrication. The steel body used ensures a high level of intrinsic stability even with high side and edge loads due to its high tensile strength. The bronze running surface is optimally connected to the steel body and has very good emergency running properties. A permanent lubricant supply with grease is necessary for reliable continuous operation. The precision ground running surface achieves high quality in terms of dimensional and shape tolerances and low roughness. (1) Guide pillar (2) Guide bushing (3) Bronze coating (4) Oil groove Slide guide with solid lubrication rings (ECO-LINE) This low-maintenance guide type consists of a copper alloy with integrated solid lubrication rings. The base frame material used offers good guide stability and very good emergency running properties. Following initial lubrication, the solid lubrication is slowly distributed into the sliding zone in ongoing operation of the solid lubrication and provides low-maintenance operation (depending on the usage conditions). The solid lubrication rings take up 25-35% of the total guide surface (depending on the design) and only permit linear movements. The ground running surface achieves good quality in terms of dimensional and shape tolerances and optimal roughness. see low-maintenance sliding elements - description (1) Guide pillar (2) Guide bushing (3) Solid lubrication ring
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