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SFS MODELDesign Check Items¢ Centering method¢ DismountingSERVO FLEXSFSò Parallel Offset (ε)Fix the dial gauge on one side of the shaft and read the run-outof the outer periphery of the other flange while rotating the shaft.The models (SFS-S and SS types) 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 (SFS-G type),use the following formula to calculate the permissible paralleloffset values.ε = tan θ × LG(1) Confirm if any torque or axial direction load does not act onthe coupling. (Torque may be applied to the coupling when asafety break control system is activated. Make sure no torqueis applied to the coupling.)(2) Loosen all the pressure bolts about 2mm from the bearingsurface.¢ SFS-S/W/G type ¢ SFS-SS/DS typeAbout 2mmAbout 2mmε : Permissible parallel offsetθ : 1°LGò Anglular Misalignment (θ)LS = LS+SLS: Full length of spaceS : Dimension between flangeon one side and spacerFix the dial gauge on one side of the shaft and read the run-outof the end surface near the outer periphery of the other flangewhile rotating the shaft.Adjust run-out B so that (θ ≤1°) can be accomplished.In the tapered shaft fastening method that tightens thepressure bolts from the axial direction, the sleeve has a selflockingmechanism so that loosening the bolts does notrelease fastening of the flange hub and shaft. (In some cases,fastening power could be released by just loosening thepressure bolts.) Therefore, a space for inserting a dismountingscrew must be considered in the coupling design phase. Ifthere is no space in the axial direction, contact us for furtherinformation.(3) Remove two pressure bolts loosened in (2) and insert theminto the two screw bores for dismounting located on thesleeve. Tighten them alternately little by little. Fastening of theflange hub and shaft will be released.B = D × tan θDB: Run-outD: Flange outer diameterθ : 1°Sò Axial 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 SFS-S/SS is a dimension between twoflange hubs. The S dimension of SFS-W/G/DS is a dimensionbetween a flange and a spacer.40
¢ Example of mounting¢ SFS-S/W/G typeò SFS-S-M-MXPressure boltThis is a combination of high-precision friction lock flanges.In this case, shafts can be jointed together after finishing thecoupling.Ball screw shaftServo motor shaft(Straight)SERVO FLEXSFSNScrew bore fordismountingX–XCoupling size 06 08 09 10 12 14Pressure bolt nominal desig. × length M5×20 M6×24 M6×24 M6×24 M8×25 M8×25Recommended N dimensions [mm] 26 30 30 30 31.5 31.5¢ SFS-SS/DS typeXò SFS-S-M-CThis is a combination of a high-precision friction lock flange andtaper shaft-compatible flange. They are assembled by tighteningthe servo motor shaft ends with nuts.Ball screw shaftServo motor shaft(1/10 taper)XPressure boltScrew bore for dismountingNX–XCoupling size 080 090 100 120 140Pressure bolt nominal desig. × length M6×22 M6×22 M6×24 M6×24 M8×35Recommended N dimensions [mm] 28 28 30 30 40.5ò SFS-SThis is an example of a pilot bore-type flange hub processed forMiki Pulley’s shaft lock, POSI LOCK PSL-K, and jointed with astraight shaft.Ball screw shaftPOSI LOCKPSL-KPOSI LOCKPSL-KServo motor shaft(Straight)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.41
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: ¢ Mounting (SFS-S/W/G-M-M type)SFS
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 and 62: SFH MODELDesign Check Items¢ Selec
Page 63 and 64: ¢ Example of mounting(8) To tighte
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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