LM Guide THK - Industrial Technologies

Индастриал Технолоджис www.industrial‐technologies.com.ua +38 044 498 21 94[Service environment]• LubricationWhen using an LM system, it is necessary to provide effective lubrication. Without lubrication, therolling elements or the raceway may be worn faster and the service life may be shortened.A lubricant has effects such as the following.(1) Minimizes friction in moving elements to prevent seizure and reduce wear.(2) Forms an oil film on the raceway to decrease stress acting on the surface and extend rollingfatigue life.(3) Covers the metal surface to prevent rust formation.To fully bring out an LM system's functions, it is necessary to provide lubrication according to theconditions.Even with an LM system with seals, the internal lubricant gradually seeps out during operation.Therefore, the system needs to be lubricated at an appropriate interval according to the conditions.• Corrosion Prevention•Determining a MaterialAny LM system requires a material that meets the environments. For use in environments where corrosionresistance is required, some LM system models can use martensite stainless steel.(Martensite stainless steel can be used for LM Guide models SSR, SHW, SRS, HSR, SR, HRW,RSR, RSR-Z, RSH RSH-Z and HR.)The HSR series includes HSR-M2, a highly corrosion resistant LM Guide using austenite stainlesssteel, which has high anti-corrosive effect. For details, see A1-274.•Surface TreatmentThe surfaces of the rails and shafts of LM systems can be treated for anti-corrosive or aesthetic purposes.THK offers THK-AP treatment, which is the optimum surface treatment for LM systems.There are roughly three types of THK-AP treatment: AP-HC, AP-C, and AP-CF. (See A0-20.)• Contamination ProtectionWhen foreign material enters an LM system, it will cause abnormal wear or shorten the service life,and it is necessary to prevent foreign material from entering the system. When entrance of foreignmaterial is predicted, it is important to select an effective sealing device or dust-control device thatmeets the environment conditions.THK offers contamination protection accessories for LM Guides by model number, such as end sealsmade of special synthetic rubber with high wear resistance, and side seals and inner seals for furtherincreasing dust-prevention effect.In addition, for locations with adverse environment, Laminated Contact Scraper LaCS and dedicatedbellows are available by model number. Also, THK offers dedicated caps for LM rail mounting holes,designed to prevent cutting chips from entering the LM rail mounting holes.When it is required to provide contamination protection for a Ball Screw in an environment exposedto cutting chips and moisture, we recommend using a telescopic cover that protects the whole systemor a large bellows.Industrial TechnologiesA1-36