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SFH MODELDesign Check Items¢ Operating limit rotation speedFor the SFH-G long spacer type, the rotation speed at which itcan be operated differs according to the spacer length selected.Check the table below and make sure that the operating rotationspeed is equal or lower than the operating limit rotation speed.(2) Insert a flange hub into the target shaft. Make sure that theinsertion length of the coupling is maintained so that thetarget shaft is in contact with the entire length of the flangehub (LF dimension) as illustrated below.100009000800070006000500040003000SFH-150GSFH-170GSFH-190GSFH-210GSFH-220GSFH-260G¢ SFH-S type¢ SFH-G typeLF LFLF LFSERVO FLEXSFHOperating limit rotation speed [min –1 ]20001000900800700600500400300200200 500 1000 2000 3000¢ MountingFloating length [mm]Coupling size (SFH-S/G) 150 170 190 210 220 260LF dimension [mm] 45 55 65 75 90 100(3) Install the other flange hub on the target shaft as in (1) and (2).(4) Center the shaft (parallel offset and angular misalignment)with the flange hub inserted and adjust the shaft intervals.(5) For the SFH-S type, move the flange hub parallel to theshaft, insert an element between the two flange hubs, andtemporarily assemble it using reamer bolts, a collar, andhexagon nuts. For the SFH-G type, insert reamer bolts intoboth flanges from the flange side and temporarily assembleit using hexagon nuts through the element and collar. Afterdoing this, move the flange hub parallel to the shaft, inserta spacer between the two flange hubs, and temporarilyassemble it using reamer bolts, a collar, and hexagon nuts.(6) Make sure that the dimension between flange hub parts (Sdimension) is kept within the axial displacement tolerance setfor the basic value. However, this value is a permissible valueassuming that both parallel offset and angular misalignmentvalues are zero. Adjust the value to be as small as possible.The SFH model is a parts-delivered product. Shafts are linkedafter installing the flange hub on each shaft, centering the flangehub, and finally installing the element (spacer). The SFH-S typecan even insert shafts after assembling couplings by installingelements on the flange hub and centering them.¢ SFH-S type ¢ SFH-G typeSSSFlange hubReamer boltElementSpacerHexagon nutCollar(1) Remove dust, dirt, and oil, etc. from the shaft and the innerdiameterpart of the flange hub. (Grease should be wipedaway with a waste cloth, etc. or by degreasing as required.)Coupling size (SFH-S/G) 150 170 190 210 220 260S dimension [mm] 11 14 15 15 20 23(7) Check that the element is not deformed. If any deformationis found, the following can be considered: unnecessaryforce has been applied in the axial direction or there is alack of lubrication among the collar, bolts, and plate spring.Adjust the deformation so that it is corrected to normal. Onthe reamer bolt-bearing surface, this might be improved bycoating a small amount of machine oil. However, do not useoils such as those containing molybdic extreme-pressureagents.64
¢ Example of mounting(8) To tighten reamer bolts, use a calibrated torque wrench at theappropriate tightening torque for all the bolts.Coupling size (SFH-S/G) 150 170 190 210 220 260Reamer bolt M8 M10 M12 M16 M16 M20Tightening torque [N·m] 34 68 118 300 300 570ò SFH-GThis is a combination of standard bore processed items.Although processing can be performed by Miki Pulley, customerscan also drill the pilot bore items freely.(9) If key/set screw method is selected for mounting the flangehub to the shaft, fix the flange hub to the shaft with setscrews.¢ Centering methodò Parallel Offset (ε)Fix the dial gauge on one side of the shaft and read the runoutof the outer periphery of the other flange while rotating theshaft. The models (SFH-S type) with one pair of elements (platesprings) do not allow parallel offset and should be moved closeto 0. For Models whose full length can be set freely (SFH-G type),use the following formula to calculate the permissible paralleloffset values.ε = tan θ × LGε : Permissible parallel offsetθ : 1°ò SFH-SThis is an example where a pilot bore-type flange hub isprocessed for POSI LOCK PSL-K, one of Miki Pulley’s shaft locks,and combined with the standard pilot drilled bore flange hub.POSI LOCKPSL-KSERVO FLEXSFHLS = LS+SLS: Full length of spaceS : Dimension between flangeon one side and spacerLGò Anglular Misalignment (θ)Fix the dial gauge on one side of the shaft and read the run-outof the edge surface near the outer periphery of the other flangewhile rotating the shaft.Adjust run-out B so that (θ ≤1°) can be accomplished.ò SFH-S SpecialThis is a combination of a flange hub processed for the servomotor taper shaft and a flange hub processed for Miki Pulley’sshaft lock PSL-G.DB = D × tan θPOSI LOCKPSL-GSB: Run-outD: Flange outer diameterθ : 1°ò Radial Displacement (S)The face-to-face dimension between flange hubs (S) must bewithin the permissible error of the axial displacement in the basicvalue. However, the value is allowable when the parallel offsetand angular misalignment are assumed to be 0 (zero). Adjust toachieve them to be as small as possible.* The S dimension of SFH-S is a dimension between two flangehubs. The S dimension of SFH-G is a dimension between aflange hub and a spacer.The latest CAD data can be downloaded from our website. ht tp://w w w.mikipulley.co.jp/C A DThe CAD mark indicates that CAD data is available by CD-ROM.The CAD file No. represents the file name in the CD-ROM.65
Page 1 and 2:
Flexible Couplings and Hub-shaft Co
Page 4 and 5:
S E R V O F L E XHigh-reliability M
Page 6 and 7:
S E R V O F L E XFull SelectionSFC
Page 8:
SFC MODELSERVO FLEXSFCSERVO FLEX: A
Page 11 and 12: ¢ Wide Range of Installation Metho
Page 13 and 14: ¢ Standard bore diameterModelSFC-0
Page 15 and 16: 0¢ Standard bore diameterModelSFC-
Page 17 and 18: ¢ Selection procedure(1) Calculate
Page 19 and 20: (5) As a principle, the target shaf
Page 21 and 22: Available to Assemble in Partsò Th
Page 23 and 24: ¢ Installing the Shaft on the Coup
Page 25 and 26: ¢ DimensionsSFS-£S-£M-£MC A DSc
Page 27 and 28: ¢ DimensionsSFS-£W-£M-£MC A DSc
Page 29 and 30: ¢ DimensionsSFS-£G-£M-£MC A DSc
Page 31 and 32: ¢ Centering and finishing in flang
Page 33 and 34: ¢ Combination of standard bore dia
Page 37 and 38: ¢ Mounting (SFS-S/W/G-M-M type)SFS
Page 39 and 40: ¢ Example of mounting¢ SFS-S/W/G
Page 41 and 42: High-speed Rotation, High-precision
Page 43 and 44: ¢ Structure and MaterialSFF-SSHexa
Page 53 and 54: ¢ Dismounting(1) Confirm if any to
Page 55 and 56: Specially Designed for Realizing Hi
Page 57 and 58: ¢ Specially Designed for Realizing
Page 59 and 60: SFH MODELSFH-G¢ SpecificationModel
Page 61: SFH MODELDesign Check Items¢ Selec
Page 65 and 66: SFC modelAssembly specificationSFS-
Page 67 and 68: SERVO FLEX SFM model for machine to
Page 69 and 70: ¢ 3. Cautions during operationDANG
Page 71 and 72: 2Technical DataDimensions and Toler
Page 73 and 74: Technical DataPermissible Dimension
Page 75 and 76: Technical DataConfiguration and Dim
Page 77 and 78: ò Mechanical Properties and Maximu
Page 79 and 80: slTechnical DataConfiguration and D
Page 81 and 82: ò Set Screw and Length of FitBecau
Page 83 and 84: ò ALS-£ R/Y/B (Set screw)Nominal
Page 85 and 86: ò Approximate Converted Values of
Page 87 and 88: Please Consult Our Website.More inf
Page 89 and 90: 5147 48 50490325 INDONESIAPT. HIMAL
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