THK LM Guide, Instruction Manual

Page 1: ...Instruction Manual No 1030 T34667 LM Guide THK Linear Motion System...

Page 2: ...2 3 3 Marking on the Master Rail and Combined Use 3 1 3 1 Marking on the Master LM Guide 3 1 3 2 Marking on the Reference Surface 3 1 3 3 Serial Number Marking and Combined Use of an LM Rail and LM Bl...

Page 3: ...ecessary 1 2 3 Notice and Attention z z Do not handle or use this product in any way other than as described in this manual z z No part of this manual may be duplicated reproduced or loaned without pe...

Page 4: ...completely rule out product failure When using this product in equipment where failure of this product could cause a severe accident or damage install a safety device or backup device to prevent the o...

Page 5: ...a dolly or other conveyance Failure to do so could cause injury or damage the product Do not disassemble z z Do not disassemble the parts This could impair the product s functions Falling objects z z...

Page 6: ...functions z z When work unavoidably requires removing mounting the LM block from onto the LM rail use the removing mounting jig to perform the work The removing mounting jig is not provided as standar...

Page 7: ...ase is adequately integrated and dispersed z z Excess grease may spatter immediately after lubrication Wipe off spattered grease as necessary z z The properties of the grease deteriorate over time the...

Page 8: ...sed as the master LM rail 3 2 Marking on the Reference Surface In the LM Guide the reference surface of the LM block is opposite the surface marked with the THK logo and the reference surface of the L...

Page 9: ...4 are correctly positioned When two LM Guides with connected LM rails are to be arranged in parallel to each other the two LM Guides will be manufactured so that the two LM Guides are axisymmetrically...

Page 10: ...by wiping the surface with washing oil before using the LM Guide Once the anti rust oil has been removed the reference surface is prone to getting rusted We recommend applying low viscosity spindle oi...

Page 11: ...the same level as the top face of the rail Mounting the LM Blocks 1 Gently place the table on the LM blocks and temporarily fasten the mounting bolts 2 Press the master side LM blocks against the sid...

Page 12: ...fully fasten the bolt Perform this in the proper order from one rail end to the other Figure 4 9 Mounting the Subsidiary LM Rail To mount the subsidiary LM rail in parallel with the correctly mounted...

Page 13: ...w the Master LM Rail Place the table on the LM blocks of the correctly mounted master LM rail and the temporarily fastened subsidiary LM rail and fully fasten the two LM blocks on the master rail and...

Page 14: ...to achieve straight ness of the LM rail from the rail end In this method two LM blocks must be joined together and fixed to a mea surement plate as shown in Figure 4 15 z z Using a Straight edge After...

Page 15: ...are tightened with bolts for the final grinding of the raceways and for the accuracy inspection When mounting a high precision LM rail onto a machine we recommend using the corresponding tightening to...

Page 16: ...nternal components or slight inclination Mounting the LM block with some of the rolling elements missing may cause early damage When using the removing mounting jig do not incline the jig and be sure...

Page 17: ...error of the LM Guide may affect the service life See the general catalog for the error allowance of the mounting surface for each model number in general use P Figure 5 1 Error Allowance in the Paral...

Page 18: ...g for the installation direction of the LM Guide Even with an LM Guide with seals the internal lubricant gradually seeps out during operation Therefore the system needs to be lubricated at an appropri...

Page 19: ...performance In such locations apply a lubricant with high viscosity kinematic viscosity approx 68 cst and high emulsification resistance and adjust the lubrication frequency or the amount of the appli...

Page 20: ...LM rail This reduces abrasion of the dust prevention seal and protects the seal When using the LM Guide in an environment where foreign materials can adhere easily to the LM rail we recommend taking m...

Page 21: ...hod With this method a given amount of lubricant is forcibly fed at set intervals using an automatic pump Figure 6 2 Although a special lubrication system using a pipe or the like needs to be designed...

Page 22: ...Appendix Revision History The instruction manual number is on the back cover Publication Date Instruction Manual No Revisions December 2017 No 1030 T34667 First edition...

Page 23: ...No 1030 T34667 Inquiries Website URL https www thk com eng Technical support site URL https tech thk com...