Product Information

Options of SFC Models

Tapered shaft supported Allows coupling clamping hub when a taper adapter is mounted on the tapered shaft of a servo motor.

SFC SA2

Specifications

ModelRated torque [N·m]MisalignmentMax. rotation speed [min-1]Torsional stiffness [N·m/rad]Axial stiffness [N/mm]TypeMoment of inertia[kg·m2]Mass [kg]
Parallel [mm]Angular [°]Axial [mm]
SFC-040SA2-□B-11BC120.021±0.3100002000080B26.58×10-60.131
C33.28×10-60.146
SFC-050SA2-□B-11BC250.021±0.4100003200048B82.91×10-60.240
C103.5×10-60.258
SFC-050SA2-□B-14BC250.021±0.4100003200048B88.72×10-60.271
C111.5×10-60.301
SFC-050SA2-□B-16BC250.021±0.4100003200048B95.44×10-60.309
C118.2×10-60.338
SFC-055SA2-□B-14BC400.021±0.42100005000043C201.1×10-60.409
SFC-055SA2-□B-16BC400.021±0.42100005000043C207.8×10-60.446
SFC-060SA2-□B-16BC600.021±0.45100007000076.4B228.7×10-60.475
C287.8×10-60.517

*Max. rotation speed does not take into account dynamic balance.

*Torsional stiff ness values given are measured values for the element alone.

*The moment of inertia and mass are measured for the maximum bore diameter.

Dimensions

 

Unit [mm]
Modeld2WTWALAdADALLDLLFCA1A2M
SFC-040SA2-□B-11BC11412.21816172244443415.54.511171-M4
SFC-050SA2-□B-11BC11412.21816172248.45643.420.5614.5221-M5
SFC-050SA2-□B-14BC14415.12419222853.45643.420.5614.5221-M5
SFC-050SA2-□B-16BC16517.32429263063.45643.420.5614.5221-M5
SFC-055SA2-□B-14BC14415.12419222856.66350.6247.75-231-M6
SFC-055SA2-□B-16BC16517.32429263066.66350.6247.75-231-M6
SFC-060SA2-□B-16BC16517.32429263069.66853.625.27.7517.526.51-M6

*The shape is type B or type C.

SFC DA2

Specifications

ModelRated torque [N·m]MisalignmentMax. rotation speed [min-1]Torsional stiffness [N·m/rad]Axial stiffness [N/mm]TypeMoment of inertia[kg·m2]Mass [kg]
Parallel [mm]Angular [°]Axial [mm]
SFC-040DA2-□B-11BC120.241(On one side)±0.6100001000040B39.42×10-60.180
C46.12×10-60.195
SFC-050DA2-□B-11BC250.281 (On one side)±0.8100001600024B125.5×10-60.331
C146.1×10-60.349
SFC-050DA2-□B-14BC250.281 (On one side)±0.8100001600024B131.1×10-60.362
C154.1×10-60.392
SFC-050DA2-□B-16BC250.281 (On one side)±0.8100001600024B138.1×10-60.400
C160.8×10-60.430
SFC-055DA2-□B-14BC400.311 (On one side)±0.84100002500021.5C274.0×10-60.530
SFC-055DA2-□B-16BC400.311 (On one side)±0.84100002500021.5C280.5×10-60.567
SFC-060DA2-□B-16BC600.341 (On one side)±0.9100003500038.2B339.4×10-60.638
C398.5×10-60.681

*Max. rotation speed does not take into account dynamic balance.

*Torsional stiff ness values given are measured values for the element alone.

*The moment of inertia and mass are measured for the maximum bore diameter.

Dimensions

Unit [mm]
Modeld2WTWALAdADALLDLLFCA1A2M
SFC-040DA2-□B-11BC11412.21816172258444815.54.511171-M4
SFC-050DA2-□B-11BC11412.21816172264.85659.820.5614.5221-M5
SFC-050DA2-□B-14BC14415.12419222869.85659.820.5614.5221-M5
SFC-050DA2-□B-16BC16517.32429263079.85659.820.5614.5221-M5
SFC-055DA2-□B-14BC14415.12419222874.46368.7247.75-231-M6
SFC-055DA2-□B-16BC16517.32429263084.76368.7247.75-231-M6
SFC-060DA2-□B-16BC16517.32429263089.36873.325.27.7517.526.51-M6

*The shape is type B or type C.

For length-specifi ed special order parts SFC DA2 couplings can be made in specific lengths that match the distance between shafts by changing the length of the spacer. Specify the length in 1 mm units.

SFC DA2

Specifications

ModelRated torque [N·m]MisalignmentMax. rotation speed [min-1]TypeMoment of inertia[kg·m2]Mass [kg]
Parallel [mm] Min. LParallel [mm] Max. LAngular [°]Axial [mm]
Min. LMax. LMin. LMax. L
SFC-005DA20.60.030.200.5 (On one side)±0.110000C0.33×10-60.62×10-60.0090.017
SFC-010DA210.080.441 (On one side)±0.210000C0.72×10-61.38×10-60.0140.026
SFC-020DA220.100.461 (On one side)±0.3310000C3.02×10-65.30×10-60.0310.054
SFC-025DA240.090.461 (On one side)±0.3810000C4.55×10-67.95×10-60.0360.061
SFC-030DA250.110.481 (On one side)±0.410000A6.09×10-612.80×10-60.0460.085
B8.11×10-614.82×10-60.0530.091
C10.22×10-616.93×10-60.0610.099
SFC-035DA2100.150.541 (On one side)±0.510000C23.85×10-635.97×10-60.1080.161
SFC-040DA2120.150.541 (On one side)±0.610000A25.06×10-644.76×10-60.1070.174
B30.89×10-650.62×10-60.1160.182
C37.58×10-657.31×10-60.1300.197
SFC-050DA2250.160.631 (On one side)±0.810000A77.42×10-6144.3×10-60.2050.347
B97.97×10-6164.8×10-60.2250.365
C120.8×10-6187.6×10-60.2520.394
SFC-055DA2400.160.601 (On one side)±0.8410000C226.8×10-6325.0×10-60.3780.538
SFC-060DA2600.190.631 (On one side)±0.910000A210.8×10-6340.1×10-60.3820.567
B269.9×10-6399.2×10-60.4240.609
C333.5×10-6462.8×10-60.4840.669

*Max. rotation speed does not take into account dynamic balance.

*The moment of inertia and mass are measured for the maximum bore diameter.

Dimensions

Unit [mm]
Modeld1*1d2*1DNLLFSA1A2Cd3KMTightening torque [N·m]Type
Min.Max.Min.Max.Std.Min.Max.
SFC-005DA2363616--23.221407.851--4.82.56.56.51-M20.4 to 0.5C
SFC-010DA2383819--25.924459.151.05--5.8*23.158.58.51-M2.5*31.0 to 1.1*3C
SFC-020DA241041126--32.3295010.751.65--9.53.310.610.61-M2.51.0 to 1.1C
SFC-025DA251451429--32.8295010.751.9--113.31514.51-M2.51.0 to 1.1C
SFC-030DA25105103421.637.8345512.42.58--3.751514.51-M31.5 to 1.9A
>101612.5B
>1014----C
SFC-035DA261661939--48436515.53--144.517171-M43.4 to 4.1C
SFC-040DA28158154429.648436515.5311--4.52019.51-M43.4 to 4.1A
>152417B
>1519----C
SFC-050DA2819819563859.8538020.52.414.5--626261-M57.0 to 8.5A
>193022B
>1925----C
SFC-055DA21030103063--68.76085242.6--237.7531311-M614 to 15C
SFC-060DA211241124684673.3659025.23.217.5--7.7531311-M614 to 15A
>243526.5B
>2430----C

*Check "Standard Bore Diameters," for the standard bore diameters. Also, the rated torque of the coupling may be limited for bore diameters marked with *1, so check that as well.

*The nominal diameter for the clamping bolt M is equal to the quantity minus the nominal diameter of the screw threads, where the quantity is for a hub on one side.

*For items marked with *2, d1 or d2 may be from ø3 to ø7 in some cases. If d1 or d2 is ø8, this value is 6.

*For items marked with *3, d1 or d2 may be from ø3 to ø7 in some cases. If d1 or d2 is ø8, then this is M2. The M2 tightening torque is 04 to 0.5 N·m.

*The recommended processing tolerance for paired mounting shafts is h7(h6・g6) class. However, for a shaft diameter of ø35, the tolerance is -0.025 to +0.010. Consult Miki Pulley for special tolerances other than h7(h6・g6) class.

*Standard compatible lengths L range from the minimum L dimension shown in the above table to the maximum. Specify the length in 1 mm units.

*When the L dimension is shorter than the standard, the left/right clamping bolt phases will be off by 45°.

Keyway milling applications If you are using a keyed shaft, we can mill a keyway in the clamping hub to your specifications.

SFC SA2/DA2

Dimensions

Unit [mm]
Compatible with H9 Class standard keyway widthsCompatible with Js9 Class standard keyway widths
Nominal bore diameterBore diameter (d1, d2)Keyway width (W1, W2)Keyway height (T1, T2)Nominal bore diameterBore diameter (d1, d2)Keyway width (W1, W2)Keyway height (T1, T2)
8BH83+0.02509.4+0.308BJ83±0.01259.4+0.30
9BH93+0.025010.4+0.309BJ93±0.012510.4+0.30
10BH103+0.025011.4+0.3010BJ103±0.012511.4+0.30
11BH114+0.030012.8+0.3011BJ114±0.015012.8+0.30
12BH124+0.030013.8+0.3012BJ124±0.015013.8+0.30
13BH135+0.030015.3+0.3013BJ135±0.015015.3+0.30
14BH145+0.030016.3+0.3014BJ145±0.015016.3+0.30
15BH155+0.030017.3+0.3015BJ155±0.015017.3+0.30
16BH165+0.030018.3+0.3016BJ165±0.015018.3+0.30
17BH175+0.030019.3+0.3017BJ175±0.015019.3+0.30
18BH186+0.030020.8+0.3018BJ186±0.015020.8+0.30
19BH196+0.030021.8+0.3019BJ196±0.015021.8+0.30
20BH206+0.030022.8+0.3020BJ206±0.015022.8+0.30
22BH226+0.030024.8+0.3022BJ226±0.015024.8+0.30
24BH248+0.036027.3+0.3024BJ248±0.018027.3+0.30
25BH258+0.036028.3+0.3025BJ258±0.018028.3+0.30
28BH288+0.036031.3+0.3028BJ288±0.018031.3+0.30
30BH308+0.036033.3+0.3030BJ308±0.018033.3+0.30
32BH3210+0.036035.3+0.3032BJ3210±0.018035.3+0.30
35BH3510+0.036038.3+0.3035BJ3510±0.018038.3+0.30
38BH3810+0.036041.3+0.3038BJ3810±0.018041.3+0.30
40BH4012+0.043043.3+0.3040BJ4012±0.021543.3+0.30
42BH4212+0.043045.3+0.3042BJ4212±0.021545.3+0.30
45BH4514+0.043048.8+0.3045BJ4514±0.021548.8+0.30

*We can also handle standards not listed above. Consult Miki Pulley.


Standard Bore Diameter

ModelStandard bore diameter, d2 (mm)
8910111213141516171819202224252830323538404245
SFC-025SA2/DA2
SFC-030SA2/DA2
SFC-035SA2/DA2
SFC-040SA2/DA29
SFC-050SA2/DA2182022
SFC-055SA2/DA231343638
SFC-060SA2/DA25051
SFC-080SA2/DA2
SFC-090SA2/DA2
SFC-100SA2/DA2226

*Bore diameters marked with ● , ○ , or numbers are supported as the standard bore diameters.

*Bore diameters marked with ○ have restrictions on the inner diameter of the element, so they can only be used with d2 side hubs.

*Bore diameters whose fi elds contain numbers are restricted in their rated torque by the holding power of the shaft connection component because the bore diameter is small. The numbers indicate the rated torque [N•m].

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