SFC Models Specifications
SFC-SA2 Types
[Specifications]
Model | Type | Rated torque [N・m] | Misalignment | Max. rotation speed [min-1] | Torsional stiffness [N・m/rad] | Axial stiffness [N/mm] | Moment of inertia [kg・m2] | Mass[kg] |
Parallel[mm] | Angular[゜] | Axial[mm] |
SFC-002SA2 | C | 0.25 | 0.01 | 0.5 | ±0.04 | 10000 | 190 | 34 | 0.06×10-6 | 0.003 |
---|
SFC-005SA2 | C | 0.6 | 0.02 | 0.5 | ±0.05 | 10000 | 500 | 140 | 0.26×10-6 | 0.007 |
---|
SFC-010SA2 | C | 1 | 0.02 | 1 | ±0.1 | 10000 | 1400 | 140 | 0.58×10-6 | 0.011 |
---|
SFC-020SA2 | C | 2 | 0.02 | 1 | ±0.15 | 10000 | 3700 | 64 | 2.39×10-6 | 0.025 |
---|
SFC-025SA2 | C | 4 | 0.02 | 1 | ±0.19 | 10000 | 5600 | 60 | 3.67×10-6 | 0.029 |
---|
SFC-030SA2 | A | 5 | 0.02 | 1 | ±0.2 | 10000 | 8000 | 64 | 4.07×10-6 | 0.034 |
---|
B | 6.09×10-6 | 0.041 |
C | 8.20×10-6 | 0.049 |
SFC-035SA2 | C | 10 | 0.02 | 1 | ±0.25 | 10000 | 18000 | 112 | 18.44×10-6 | 0.082 |
---|
SFC-040SA2 | A | 12 | 0.02 | 1 | ±0.3 | 10000 | 20000 | 80 | 16.71×10-6 | 0.077 |
---|
B | 22.55×10-6 | 0.085 |
C | 29.25×10-6 | 0.100 |
SFC-050SA2 | A | 25 | 0.02 | 1 | ±0.4 | 10000 | 32000 | 48 | 55.71×10-6 | 0.159 |
---|
B | 76.26×10-6 | 0.177 |
C | 99.03×10-6 | 0.206 |
SFC-055SA2 | C | 40 | 0.02 | 1 | ±0.42 | 10000 | 50000 | 43 | 188.0×10-6 | 0.314 |
---|
SFC-060SA2 | A | 60 | 0.02 | 1 | ±0.45 | 10000 | 70000 | 76.4 | 145.9×10-6 | 0.283 |
---|
B | 205.0×10-6 | 0.326 |
C | 268.6×10-6 | 0.385 |
SFC-080SA2 | C | 100 | 0.02 | 1 | ±0.55 | 10000 | 140000 | 128 | 710.6×10-6 | 0.708 |
---|
SFC-090SA2 | C | 180 | 0.02 | 1 | ±0.65 | 10000 | 100000 | 108 | 1236×10-6 | 0.946 |
---|
SFC-100SA2 | C | 250 | 0.02 | 1 | ±0.74 | 10000 | 120000 | 111 | 1891×10-6 | 1.202 |
---|
* Check the Standard Bore Diameter list as rated torque may be restricted by the holding power of the shaft connection component.
* Max. rotation speed does not take into account dynamic balance.
* Torsional stiffness 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]
Model | Type | d1[mm] | d2[mm] | D[mm] | DB[mm] | N[mm] | L[mm] | LF[mm] | S[mm] | A1[mm] | A2[mm] | C[mm] | K[mm] | M Qty - Nominal dia | Tightening torque[N・m] |
Min. | Max. | Min. | Max. |
SFC-002SA2 | C | 3 | 5 | 3 | 5 | 12 | 12.4 | ─ | 12.35 | 5.9 | 0.55 | ─ | 3.7 | 1.9 | 5.6 | 1-M1.6 | 0.23~0.28 |
---|
SFC-005SA2 | C | 3 | 6 | 3 | 6 | 16 | ─ | ─ | 16.7 | 7.85 | 1 | ─ | 4.8 | 2.5 | 6.5 | 1-M2 | 0.4~0.5 |
---|
SFC-010SA2 | C | 3 | 8 | 3 | 8 | 19 | ─ | ─ | 19.35 | 9.15 | 1.05 | ─ | 5.8(6) | 3.15 | 8.5 | 1-M2.5(M2) | 1.0~1.1(0.4~0.5) |
---|
SFC-020SA2 | C | 4 | 10 | 4 | 11 | 26 | ─ | ─ | 23.15 | 10.75 | 1.65 | ─ | 9.5 | 3.3 | 10.6 | 1-M2.5 | 1.0~1.1 |
---|
SFC-025SA2 | C | 5 | 14 | 5 | 14 | 29 | ─ | ─ | 23.4 | 10.75 | 1.9 | ─ | 11 | 3.3 | 14.5 | 1-M2.5 | 1.0~1.1 |
---|
SFC-030SA2 | A | 5 | 10 | 5 | 10 | 34 | ─ | 21.6 | 27.3 | 12.4 | 2.5 | 8 | ─ | 3.75 | 14.5 | 1-M3 | 1.5~1.9 |
---|
B | 5 | 10 | Over 10 | 16 | 8 | 12.5 |
C | Over 10 | 14 | Over 10 | 16 | ─ | ─ | 12.5 |
SFC-035SA2 | C | 6 | 16 | 6 | 19 | 39 | ─ | ─ | 34 | 15.5 | 3 | ─ | 14 | 4.5 | 17 | 1-M4 | 3.4~4.1 |
---|
SFC-040SA2 | A | 8 | 15 | 8 | 15 | 44 | ─ | 29.6 | 34 | 15.5 | 3 | 11 | ─ | 4.5 | 19.5 | 1-M4 | 3.4~4.1 |
---|
B | 8 | 15 | Over 15 | 24 | 11 | 17 |
C | Over 15 | 19 | Over 15 | 24 | ─ | ─ | 17 |
SFC-050SA2 | A | 8 | 19 | 8 | 19 | 56 | ─ | 38 | 43.4 | 20.5 | 2.4 | 14.5 | ─ | 6 | 26 | 1-M5 | 7.0~8.5 |
---|
B | 8 | 19 | Over 19 | 30 | 14.5 | 22 |
C | Over 19 | 25 | Over 19 | 30 | ─ | ─ | 22 |
SFC-055SA2 | C | 10 | 30 | 10 | 30 | 63 | ─ | ─ | 50.6 | 24 | 2.6 | ─ | 23 | 7.75 | 31 | 1-M6 | 14~15 |
---|
SFC-060SA2 | A | 11 | 24 | 11 | 24 | 68 | ─ | 46 | 53.6 | 25.2 | 3.2 | 17.5 | ─ | 7.75 | 31 | 1-M6 | 14~15 |
---|
B | 11 | 24 | Over 24 | 35 | 17.5 | 26.5 |
C | Over 24 | 30 | Over 24 | 35 | ─ | ─ | 26.5 |
SFC-080SA2 | C | 18 | 35 | 18 | 40 | 82 | ─ | ─ | 68 | 30 | 8 | ─ | 28 | 9 | 38 | 1-M8 | 27~30 |
---|
SFC-090SA2 | C | 25 | 40 | 25 | 45 | 94 | ─ | ─ | 68.3 | 30 | 8.3 | ─ | 34 | 9 | 42 | 1-M8 | 27~30 |
---|
SFC-100SA2 | C | 32 | 45 | 32 | 45 | 104 | ─ | ─ | 69.8 | 30 | 9.8 | ─ | 39 | 9 | 48 | 1-M8 | 27~30 |
---|
* The øDB value is measured assuming that the head of the clamping bolt is larger than the external diameter of the hub.
* The K dimension is the inner diameter of the element. For d2 dimension exceeding this value, shaft can be inserted only up to LF dimension to the d2 side hub.
* 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.
* The figures in parentheses ( ) for the SFC-010 are the values when d1 or d2 is ø8 mm.
[Standard bore diameter]
Standard (option) bore diameter, d1/d2 [mm] and restricted rated torque [N∙m] |
Nominal bore diameter | 3 | 4 | 5 | 6 | 6.35 | 7 | 8 | 9 | 9.525 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 22 | 24 | 25 | 28 | 30 | 32 | 35 | 38 | 40 | 42 | 45 |
Shaft tolerance | h7(h6・g6) | B | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● |
---|
j6(Option) | J | | | | | | | | | | | | | | | | | | | ○ | | ○ | ○ | | ○ | | | | | | | |
k6(Option) | K | | | | | | | ○ | ○ | | | | | | ○ | | ○ | | | ○ | | ○ | ○ | | | | ○ | | ○ | | | |
Supported bore diameter for each mode | SFC-002SA2 | d1 | ● | ● | ● | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
---|
d2 | ● | ● | ● | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
SFC-005SA2 | d1 | ● | ● | ● | ● | | | | | | | | | | | | | | | | | | | | | | | | | | | |
d2 | ● | ● | ● | ● | | | | | | | | | | | | | | | | | | | | | | | | | | | |
SFC-010SA2 | d1 | ● | ● | ● | ● | ● | ● | ● | | | | | | | | | | | | | | | | | | | | | | | | |
d2 | ● | ● | ● | ● | ● | ● | ● | | | | | | | | | | | | | | | | | | | | | | | | |
SFC-020SA2 | d1 | | ● | ● | ● | ● | ● | ● | ● | ● | ● | | | | | | | | | | | | | | | | | | | | | |
d2 | | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | | | | | | | | | | | | | | | | | | | | |
SFC-025SA2 | d1 | | | 2.1 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | | | | | | | | | | | | | | | | | |
d2 | | | 2.1 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | | | | | | | | | | | | | | | | | |
SFC-030SA2 | d1 | | | 2.8 | 3.4 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | | | | | | | | | | | | | | | | | |
d2 | | | 2.8 | 3.4 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | | | | | | | | | | | | | | | |
SFC-035SA2 | d1 | | | | 5 | 5 | 6.6 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | | | | | | | | | | | | | | | |
d2 | | | | 5 | 5 | 6.6 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | | | | | | | | | | | | |
SFC-040SA2 | d1 | | | | | | | 9 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | | | | | | | | | | | | |
d2 | | | | | | | 9 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | | | | | | | | | |
SFC-050SA2 | d1 | | | | | | | 18 | 20 | 22 | 22 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | | | | | | | | |
d2 | | | | | | | 18 | 20 | 22 | 22 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | | | | | | |
SFC-055SA2 | d1 | | | | | | | | | | 31 | 34 | 36 | 38 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | | | | | | |
d2 | | | | | | | | | | 31 | 34 | 36 | 38 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | | | | | | |
SFC-060SA2 | d1 | | | | | | | | | | | 50 | 51 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | | | | | | |
d2 | | | | | | | | | | | 50 | 51 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | | | | |
SFC-080SA2 | d1 | | | | | | | | | | | | | | | | | | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | | | | |
d2 | | | | | | | | | | | | | | | | | | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | | |
SFC-090SA2 | d1 | | | | | | | | | | | | | | | | | | | | | | | ● | ● | ● | ● | ● | ● | ● | | |
d2 | | | | | | | | | | | | | | | | | | | | | | | ● | ● | ● | ● | ● | ● | ● | ● | ● |
SFC-100SA2 | d1 | | | | | | | | | | | | | | | | | | | | | | | | | | 226 | ● | ● | ● | ● | ● |
d2 | | | | | | | | | | | | | | | | | | | | | | | | | | 226 | ● | ● | ● | ● | ● |
* The shaft tolerance for standard bore diameter is h7 (h6 or g6): designation B. However, for a shaft diameter of ø35, the tolerance is + 0.010~- 0.025 .
* Shaft tolerances j6/k6: designations J/K are optional, and are only supported for bore diameters marked with ○ .
* Bore diameters marked with ● or numbers are supported as the standard bore diameters. Consult Miki Pulley regarding special arrangements which may be possible for other bore diameters.
* Bore diameters whose fields 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].
SFC-DA2 Types
[Specifications]
Model | Type | Rated torque [N・m] | Misalignment | Max. rotation speed [min-1] | Torsional stiffness [N・m/rad] | Axial stiffness [N/mm] | Moment of inertia [kg・m2] | Mass[kg] |
Parallel[mm] | Angular[゜] | Axial[mm] |
SFC-002DA2 | C | 0.25 | 0.03 | 0.5(On one side) | ±0.08 | 10000 | 95 | 17 | 0.07×10-6 | 0.004 |
---|
SFC-005DA2 | C | 0.6 | 0.05 | 0.5(On one side) | ±0.1 | 10000 | 250 | 70 | 0.37×10-6 | 0.010 |
---|
SFC-010DA2 | C | 1 | 0.11 | 1(On one side) | ±0.2 | 10000 | 700 | 70 | 0.80×10-6 | 0.015 |
---|
SFC-020DA2 | C | 2 | 0.15 | 1(On one side) | ±0.33 | 10000 | 1850 | 32 | 3.43×10-6 | 0.035 |
---|
SFC-025DA2 | C | 4 | 0.16 | 1(On one side) | ±0.38 | 10000 | 2800 | 30 | 5.26×10-6 | 0.040 |
---|
SFC-030DA2 | A | 5 | 0.18 | 1(On one side) | ±0.4 | 10000 | 4000 | 32 | 7.43×10-6 | 0.054 |
---|
B | 9.45×10-6 | 0.060 |
C | 11.56×10-6 | 0.068 |
SFC-035DA2 | C | 10 | 0.24 | 1(On one side) | ±0.5 | 10000 | 9000 | 56 | 26.93×10-6 | 0.121 |
---|
SFC-040DA2 | A | 12 | 0.24 | 1(On one side) | ±0.6 | 10000 | 10000 | 40 | 29.98×10-6 | 0.124 |
---|
B | 35.82×10-6 | 0.131 |
C | 42.52×10-6 | 0.146 |
SFC-050DA2 | A | 25 | 0.28 | 1(On one side) | ±0.8 | 10000 | 16000 | 24 | 98.34×10-6 | 0.250 |
---|
B | 118.9×10-6 | 0.268 |
C | 141.7×10-6 | 0.298 |
SFC-055DA2 | C | 40 | 0.31 | 1(On one side) | ±0.84 | 10000 | 25000 | 21.5 | 261.3×10-6 | 0.459 |
---|
SFC-060DA2 | A | 60 | 0.34 | 1(On one side) | ±0.9 | 10000 | 35000 | 38.2 | 256.6×10-6 | 0.447 |
---|
B | 315.7×10-6 | 0.489 |
C | 379.3×10-6 | 0.549 |
SFC-080DA2 | C | 100 | 0.52 | 1(On one side) | ±1.10 | 10000 | 70000 | 64 | 1039×10-6 | 1.037 |
---|
SFC-090DA2 | C | 180 | 0.52 | 1(On one side) | ±1.30 | 10000 | 50000 | 54 | 1798×10-6 | 1.369 |
---|
SFC-100DA2 | C | 250 | 0.55 | 1(On one side) | ±1.48 | 10000 | 60000 | 55.5 | 2754×10-6 | 1.739 |
---|
* Check the "Standard Bore Diameters" as rated torque may be restricted by the holding power of the shaft connection component.
* Max. rotation speed does not take into account dynamic balance.
* Torsional stiffness 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]
Model | Type | d1[mm] | d2[mm] | D[mm] | DB[mm] | N[mm] | L[mm] | LF[mm] | LP[mm] | S[mm] | A1[mm] | A2[mm] | C[mm] | d3[mm] | K[mm] | M Qty - Nominal dia | Tightening torque[N・m] |
Min. | Max. | Min. | Max. |
SFC-002DA2 | C | 3 | 5 | 3 | 5 | 12 | 12.4 | ─ | 15.7 | 5.9 | 2.8 | 0.55 | ─ | 3.7 | 1.9 | 5.2 | 5.6 | 1-M1.6 | 0.23~0.28 |
---|
SFC-005DA2 | C | 3 | 6 | 3 | 6 | 16 | ─ | ─ | 23.2 | 7.85 | 5.5 | 1 | ─ | 4.8 | 2.5 | 6.5 | 6.5 | 1-M2 | 0.4~0.5 |
---|
SFC-010DA2 | C | 3 | 8 | 3 | 8 | 19 | ─ | ─ | 25.9 | 9.15 | 5.5 | 1.05 | ─ | 5.8(6) | 3.15 | 8.5 | 8.5 | 1-M2.5(M2) | 1.0~1.1(0.4~0.5) |
---|
SFC-020DA2 | C | 4 | 10 | 4 | 11 | 26 | ─ | ─ | 32.3 | 10.75 | 7.5 | 1.65 | ─ | 9.5 | 3.3 | 10.6 | 10.6 | 1-M2.5 | 1.0~1.1 |
---|
SFC-025DA2 | C | 5 | 14 | 5 | 14 | 29 | ─ | ─ | 32.8 | 10.75 | 7.5 | 1.9 | ─ | 11 | 3.3 | 15 | 14.5 | 1-M2.5 | 1.0~1.1 |
---|
SFC-030DA2 | A | 5 | 10 | 5 | 10 | 34 | ─ | 21.6 | 37.8 | 12.4 | 8 | 2.5 | 8 | ─ | 3.75 | 15 | 14.5 | 1-M3 | 1.5~1.9 |
---|
B | 5 | 10 | Over 10 | 16 | 8 | 12.5 |
C | Over 10 | 14 | Over 10 | 16 | ─ | ─ | 12.5 |
SFC-035DA2 | C | 6 | 16 | 6 | 19 | 39 | ─ | ─ | 48 | 15.5 | 11 | 3 | ─ | 14 | 4.5 | 17 | 17 | 1-M4 | 3.4~4.1 |
---|
SFC-040DA2 | A | 8 | 15 | 8 | 15 | 44 | ─ | 29.6 | 48 | 15.5 | 11 | 3 | 11 | ─ | 4.5 | 20 | 19.5 | 1-M4 | 3.4~4.1 |
---|
B | 8 | 15 | Over 15 | 24 | 11 | 17 |
C | Over 15 | 19 | Over 15 | 24 | ─ | ─ | 17 |
SFC-050DA2 | A | 8 | 19 | 8 | 19 | 56 | ─ | 38 | 59.8 | 20.5 | 14 | 2.4 | 14.5 | ─ | 6 | 26 | 26 | 1-M5 | 7.0~8.5 |
---|
B | 8 | 19 | Over 19 | 30 | 14.5 | 22 |
C | Over 19 | 25 | Over 19 | 30 | ─ | ─ | 22 |
SFC-055DA2 | C | 10 | 30 | 10 | 30 | 63 | ─ | ─ | 68.7 | 24 | 15.5 | 2.6 | ─ | 23 | 7.75 | 31 | 31 | 1-M6 | 14~15 |
---|
SFC-060DA2 | A | 11 | 24 | 11 | 24 | 68 | ─ | 46 | 73.3 | 25.2 | 16.5 | 3.2 | 17.5 | ─ | 7.75 | 31 | 31 | 1-M6 | 14~15 |
---|
B | 11 | 24 | Over 24 | 35 | 17.5 | 26.5 |
C | Over 24 | 30 | Over 24 | 35 | ─ | ─ | 26.5 |
SFC-080DA2 | C | 18 | 35 | 18 | 40 | 82 | ─ | ─ | 98 | 30 | 22 | 8 | ─ | 28 | 9 | 40 | 38 | 1-M8 | 27~30 |
---|
SFC-090DA2 | C | 25 | 40 | 25 | 45 | 94 | ─ | ─ | 98.6 | 30 | 22 | 8.3 | ─ | 34 | 9 | 47 | 42 | 1-M8 | 27~30 |
---|
SFC-100DA2 | C | 32 | 45 | 32 | 45 | 104 | ─ | ─ | 101.6 | 30 | 22 | 9.8 | ─ | 39 | 9 | 50 | 48 | 1-M8 | 27~30 |
---|
* The øDB value is measured assuming that the head of the clamping bolt is larger than the external diameter of the hub.
* The K dimension is the inner diameter of the element. For d2 dimension exceeding this value, shaft can be inserted only up to LF dimension to the d2 side hub.
* 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.
* The figures in parentheses ( ) for the SFC-010 are the values when d1 or d2 is ø8 mm.
[Standard bore diameter]
Standard (option) bore diameter, d1/d2 [mm] and restricted rated torque [N∙m] |
Nominal bore diameter | 3 | 4 | 5 | 6 | 6.35 | 7 | 8 | 9 | 9.525 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 22 | 24 | 25 | 28 | 30 | 32 | 35 | 38 | 40 | 42 | 45 |
Shaft tolerance | h7(h6・g6) | B | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● |
---|
j6(Option) | J | | | | | | | | | | | | | | | | | | | ○ | | ○ | ○ | | ○ | | | | | | | |
k6(Option) | K | | | | | | | ○ | ○ | | | | | | ○ | | ○ | | | ○ | | ○ | ○ | | | | ○ | | ○ | | | |
Supported bore diameter for each mode | SFC-002DA2 | d1 | ● | ● | ● | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
---|
d2 | ● | ● | ● | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
SFC-005DA2 | d1 | ● | ● | ● | ● | | | | | | | | | | | | | | | | | | | | | | | | | | | |
d2 | ● | ● | ● | ● | | | | | | | | | | | | | | | | | | | | | | | | | | | |
SFC-010DA2 | d1 | ● | ● | ● | ● | ● | ● | ● | | | | | | | | | | | | | | | | | | | | | | | | |
d2 | ● | ● | ● | ● | ● | ● | ● | | | | | | | | | | | | | | | | | | | | | | | | |
SFC-020DA2 | d1 | | ● | ● | ● | ● | ● | ● | ● | ● | ● | | | | | | | | | | | | | | | | | | | | | |
d2 | | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | | | | | | | | | | | | | | | | | | | | |
SFC-025DA2 | d1 | | | 2.1 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | | | | | | | | | | | | | | | | | |
d2 | | | 2.1 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | | | | | | | | | | | | | | | | | |
SFC-030DA2 | d1 | | | 2.8 | 3.4 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | | | | | | | | | | | | | | | | | |
d2 | | | 2.8 | 3.4 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | | | | | | | | | | | | | | | |
SFC-035DA2 | d1 | | | | 5 | 5 | 6.6 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | | | | | | | | | | | | | | | |
d2 | | | | 5 | 5 | 6.6 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | | | | | | | | | | | | |
SFC-040DA2 | d1 | | | | | | | 9 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | | | | | | | | | | | | |
d2 | | | | | | | 9 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | | | | | | | | | |
SFC-050DA2 | d1 | | | | | | | 18 | 20 | 22 | 22 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | | | | | | | | |
d2 | | | | | | | 18 | 20 | 22 | 22 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | | | | | | |
SFC-055DA2 | d1 | | | | | | | | | | 31 | 34 | 36 | 38 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | | | | | | |
d2 | | | | | | | | | | 31 | 34 | 36 | 38 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | | | | | | |
SFC-060DA2 | d1 | | | | | | | | | | | 50 | 51 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | | | | | | |
d2 | | | | | | | | | | | 50 | 51 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | | | | |
SFC-080DA2 | d1 | | | | | | | | | | | | | | | | | | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | | | | |
d2 | | | | | | | | | | | | | | | | | | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | | |
SFC-090DA2 | d1 | | | | | | | | | | | | | | | | | | | | | | | ● | ● | ● | ● | ● | ● | ● | | |
d2 | | | | | | | | | | | | | | | | | | | | | | | ● | ● | ● | ● | ● | ● | ● | ● | ● |
SFC-100DA2 | d1 | | | | | | | | | | | | | | | | | | | | | | | | | | 226 | ● | ● | ● | ● | ● |
d2 | | | | | | | | | | | | | | | | | | | | | | | | | | 226 | ● | ● | ● | ● | ● |
* The shaft tolerance for standard bore diameter is h7 (h6 or g6): designation B. However, for a shaft diameter of ø35, the tolerance is + 0.010~-0.025 .
* Shaft tolerances j6/k6: designations J/K are optional, and are only supported for bore diameters marked with ○ .
* Bore diameters marked with ● or numbers are supported as the standard bore diameters. Consult Miki Pulley regarding special arrangements which may be possible for other bore diameters.
* Bore diameters whose fields 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].
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
Model | Rated torque [N·m] | Misalignment | Max. rotation speed [min-1] | Torsional stiffness [N·m/rad] | Axial stiffness [N/mm] | Type | Moment of inertia[kg·m2] | Mass [kg] |
Parallel [mm] | Angular [°] | Axial [mm] |
SFC-040SA2-□B-11BC | 12 | 0.02 | 1 | ±0.3 | 10000 | 20000 | 80 | B | 26.58×10-6 | 0.131 |
C | 33.28×10-6 | 0.146 |
SFC-050SA2-□B-11BC | 25 | 0.02 | 1 | ±0.4 | 10000 | 32000 | 48 | B | 82.91×10-6 | 0.240 |
C | 103.5×10-6 | 0.258 |
SFC-050SA2-□B-14BC | 25 | 0.02 | 1 | ±0.4 | 10000 | 32000 | 48 | B | 88.72×10-6 | 0.271 |
C | 111.5×10-6 | 0.301 |
SFC-050SA2-□B-16BC | 25 | 0.02 | 1 | ±0.4 | 10000 | 32000 | 48 | B | 95.44×10-6 | 0.309 |
C | 118.2×10-6 | 0.338 |
SFC-055SA2-□B-14BC | 40 | 0.02 | 1 | ±0.42 | 10000 | 50000 | 43 | C | 201.1×10-6 | 0.409 |
SFC-055SA2-□B-16BC | 40 | 0.02 | 1 | ±0.42 | 10000 | 50000 | 43 | C | 207.8×10-6 | 0.446 |
SFC-060SA2-□B-16BC | 60 | 0.02 | 1 | ±0.45 | 10000 | 70000 | 76.4 | B | 228.7×10-6 | 0.475 |
C | 287.8×10-6 | 0.517 |
*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]
Model | d2 | W | T | WA | LA | dA | DA | LL | D | L | LF | C | A1 | A2 | M |
SFC-040SA2-□B-11BC | 11 | 4 | 12.2 | 18 | 16 | 17 | 22 | 44 | 44 | 34 | 15.5 | 4.5 | 11 | 17 | 1-M4 |
SFC-050SA2-□B-11BC | 11 | 4 | 12.2 | 18 | 16 | 17 | 22 | 48.4 | 56 | 43.4 | 20.5 | 6 | 14.5 | 22 | 1-M5 |
SFC-050SA2-□B-14BC | 14 | 4 | 15.1 | 24 | 19 | 22 | 28 | 53.4 | 56 | 43.4 | 20.5 | 6 | 14.5 | 22 | 1-M5 |
SFC-050SA2-□B-16BC | 16 | 5 | 17.3 | 24 | 29 | 26 | 30 | 63.4 | 56 | 43.4 | 20.5 | 6 | 14.5 | 22 | 1-M5 |
SFC-055SA2-□B-14BC | 14 | 4 | 15.1 | 24 | 19 | 22 | 28 | 56.6 | 63 | 50.6 | 24 | 7.75 | - | 23 | 1-M6 |
SFC-055SA2-□B-16BC | 16 | 5 | 17.3 | 24 | 29 | 26 | 30 | 66.6 | 63 | 50.6 | 24 | 7.75 | - | 23 | 1-M6 |
SFC-060SA2-□B-16BC | 16 | 5 | 17.3 | 24 | 29 | 26 | 30 | 69.6 | 68 | 53.6 | 25.2 | 7.75 | 17.5 | 26.5 | 1-M6 |
*The shape is type B or type C.
SFC DA2
Specifications
Model | Rated torque [N·m] | Misalignment | Max. rotation speed [min-1] | Torsional stiffness [N·m/rad] | Axial stiffness [N/mm] | Type | Moment of inertia[kg·m2] | Mass [kg] |
Parallel [mm] | Angular [°] | Axial [mm] |
SFC-040DA2-□B-11BC | 12 | 0.24 | 1(On one side) | ±0.6 | 10000 | 10000 | 40 | B | 39.42×10-6 | 0.180 |
C | 46.12×10-6 | 0.195 |
SFC-050DA2-□B-11BC | 25 | 0.28 | 1 (On one side) | ±0.8 | 10000 | 16000 | 24 | B | 125.5×10-6 | 0.331 |
C | 146.1×10-6 | 0.349 |
SFC-050DA2-□B-14BC | 25 | 0.28 | 1 (On one side) | ±0.8 | 10000 | 16000 | 24 | B | 131.1×10-6 | 0.362 |
C | 154.1×10-6 | 0.392 |
SFC-050DA2-□B-16BC | 25 | 0.28 | 1 (On one side) | ±0.8 | 10000 | 16000 | 24 | B | 138.1×10-6 | 0.400 |
C | 160.8×10-6 | 0.430 |
SFC-055DA2-□B-14BC | 40 | 0.31 | 1 (On one side) | ±0.84 | 10000 | 25000 | 21.5 | C | 274.0×10-6 | 0.530 |
SFC-055DA2-□B-16BC | 40 | 0.31 | 1 (On one side) | ±0.84 | 10000 | 25000 | 21.5 | C | 280.5×10-6 | 0.567 |
SFC-060DA2-□B-16BC | 60 | 0.34 | 1 (On one side) | ±0.9 | 10000 | 35000 | 38.2 | B | 339.4×10-6 | 0.638 |
C | 398.5×10-6 | 0.681 |
*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]
Model | d2 | W | T | WA | LA | dA | DA | LL | D | L | LF | C | A1 | A2 | M |
SFC-040DA2-□B-11BC | 11 | 4 | 12.2 | 18 | 16 | 17 | 22 | 58 | 44 | 48 | 15.5 | 4.5 | 11 | 17 | 1-M4 |
SFC-050DA2-□B-11BC | 11 | 4 | 12.2 | 18 | 16 | 17 | 22 | 64.8 | 56 | 59.8 | 20.5 | 6 | 14.5 | 22 | 1-M5 |
SFC-050DA2-□B-14BC | 14 | 4 | 15.1 | 24 | 19 | 22 | 28 | 69.8 | 56 | 59.8 | 20.5 | 6 | 14.5 | 22 | 1-M5 |
SFC-050DA2-□B-16BC | 16 | 5 | 17.3 | 24 | 29 | 26 | 30 | 79.8 | 56 | 59.8 | 20.5 | 6 | 14.5 | 22 | 1-M5 |
SFC-055DA2-□B-14BC | 14 | 4 | 15.1 | 24 | 19 | 22 | 28 | 74.4 | 63 | 68.7 | 24 | 7.75 | - | 23 | 1-M6 |
SFC-055DA2-□B-16BC | 16 | 5 | 17.3 | 24 | 29 | 26 | 30 | 84.7 | 63 | 68.7 | 24 | 7.75 | - | 23 | 1-M6 |
SFC-060DA2-□B-16BC | 16 | 5 | 17.3 | 24 | 29 | 26 | 30 | 89.3 | 68 | 73.3 | 25.2 | 7.75 | 17.5 | 26.5 | 1-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
Model | Rated torque [N·m] | Misalignment | Max. rotation speed [min-1] | Type | Moment of inertia[kg·m2] | Mass [kg] |
Parallel [mm] Min. L | Parallel [mm] Max. L | Angular [°] | Axial [mm] |
Min. L | Max. L | Min. L | Max. L |
SFC-005DA2 | 0.6 | 0.03 | 0.20 | 0.5 (On one side) | ±0.1 | 10000 | C | 0.33×10-6 | 0.62×10-6 | 0.009 | 0.017 |
SFC-010DA2 | 1 | 0.08 | 0.44 | 1 (On one side) | ±0.2 | 10000 | C | 0.72×10-6 | 1.38×10-6 | 0.014 | 0.026 |
SFC-020DA2 | 2 | 0.10 | 0.46 | 1 (On one side) | ±0.33 | 10000 | C | 3.02×10-6 | 5.30×10-6 | 0.031 | 0.054 |
SFC-025DA2 | 4 | 0.09 | 0.46 | 1 (On one side) | ±0.38 | 10000 | C | 4.55×10-6 | 7.95×10-6 | 0.036 | 0.061 |
SFC-030DA2 | 5 | 0.11 | 0.48 | 1 (On one side) | ±0.4 | 10000 | A | 6.09×10-6 | 12.80×10-6 | 0.046 | 0.085 |
B | 8.11×10-6 | 14.82×10-6 | 0.053 | 0.091 |
C | 10.22×10-6 | 16.93×10-6 | 0.061 | 0.099 |
SFC-035DA2 | 10 | 0.15 | 0.54 | 1 (On one side) | ±0.5 | 10000 | C | 23.85×10-6 | 35.97×10-6 | 0.108 | 0.161 |
SFC-040DA2 | 12 | 0.15 | 0.54 | 1 (On one side) | ±0.6 | 10000 | A | 25.06×10-6 | 44.76×10-6 | 0.107 | 0.174 |
B | 30.89×10-6 | 50.62×10-6 | 0.116 | 0.182 |
C | 37.58×10-6 | 57.31×10-6 | 0.130 | 0.197 |
SFC-050DA2 | 25 | 0.16 | 0.63 | 1 (On one side) | ±0.8 | 10000 | A | 77.42×10-6 | 144.3×10-6 | 0.205 | 0.347 |
B | 97.97×10-6 | 164.8×10-6 | 0.225 | 0.365 |
C | 120.8×10-6 | 187.6×10-6 | 0.252 | 0.394 |
SFC-055DA2 | 40 | 0.16 | 0.60 | 1 (On one side) | ±0.84 | 10000 | C | 226.8×10-6 | 325.0×10-6 | 0.378 | 0.538 |
SFC-060DA2 | 60 | 0.19 | 0.63 | 1 (On one side) | ±0.9 | 10000 | A | 210.8×10-6 | 340.1×10-6 | 0.382 | 0.567 |
B | 269.9×10-6 | 399.2×10-6 | 0.424 | 0.609 |
C | 333.5×10-6 | 462.8×10-6 | 0.484 | 0.669 |
*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]
Model | d1*1 | d2*1 | D | N | L | LF | S | A1 | A2 | C | d3 | K | M | Tightening torque [N·m] | Type |
Min. | Max. | Min. | Max. | Std. | Min. | Max. |
SFC-005DA2 | 3 | 6 | 3 | 6 | 16 | -- | 23.2 | 21 | 40 | 7.85 | 1 | -- | 4.8 | 2.5 | 6.5 | 6.5 | 1-M2 | 0.4 to 0.5 | C |
SFC-010DA2 | 3 | 8 | 3 | 8 | 19 | -- | 25.9 | 24 | 45 | 9.15 | 1.05 | -- | 5.8*2 | 3.15 | 8.5 | 8.5 | 1-M2.5*3 | 1.0 to 1.1*3 | C |
SFC-020DA2 | 4 | 10 | 4 | 11 | 26 | -- | 32.3 | 29 | 50 | 10.75 | 1.65 | -- | 9.5 | 3.3 | 10.6 | 10.6 | 1-M2.5 | 1.0 to 1.1 | C |
SFC-025DA2 | 5 | 14 | 5 | 14 | 29 | -- | 32.8 | 29 | 50 | 10.75 | 1.9 | -- | 11 | 3.3 | 15 | 14.5 | 1-M2.5 | 1.0 to 1.1 | C |
SFC-030DA2 | 5 | 10 | 5 | 10 | 34 | 21.6 | 37.8 | 34 | 55 | 12.4 | 2.5 | 8 | -- | 3.75 | 15 | 14.5 | 1-M3 | 1.5 to 1.9 | A |
>10 | 16 | 12.5 | B |
>10 | 14 | -- | -- | C |
SFC-035DA2 | 6 | 16 | 6 | 19 | 39 | -- | 48 | 43 | 65 | 15.5 | 3 | -- | 14 | 4.5 | 17 | 17 | 1-M4 | 3.4 to 4.1 | C |
SFC-040DA2 | 8 | 15 | 8 | 15 | 44 | 29.6 | 48 | 43 | 65 | 15.5 | 3 | 11 | -- | 4.5 | 20 | 19.5 | 1-M4 | 3.4 to 4.1 | A |
>15 | 24 | 17 | B |
>15 | 19 | -- | -- | C |
SFC-050DA2 | 8 | 19 | 8 | 19 | 56 | 38 | 59.8 | 53 | 80 | 20.5 | 2.4 | 14.5 | -- | 6 | 26 | 26 | 1-M5 | 7.0 to 8.5 | A |
>19 | 30 | 22 | B |
>19 | 25 | -- | -- | C |
SFC-055DA2 | 10 | 30 | 10 | 30 | 63 | -- | 68.7 | 60 | 85 | 24 | 2.6 | -- | 23 | 7.75 | 31 | 31 | 1-M6 | 14 to 15 | C |
SFC-060DA2 | 11 | 24 | 11 | 24 | 68 | 46 | 73.3 | 65 | 90 | 25.2 | 3.2 | 17.5 | -- | 7.75 | 31 | 31 | 1-M6 | 14 to 15 | A |
>24 | 35 | 26.5 | B |
>24 | 30 | -- | -- | 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 widths | Compatible with Js9 Class standard keyway widths |
Nominal bore diameter | Bore diameter (d1, d2) | Keyway width (W1, W2) | Keyway height (T1, T2) | Nominal bore diameter | Bore diameter (d1, d2) | Keyway width (W1, W2) | Keyway height (T1, T2) |
8BH | 8 | 3+0.0250 | 9.4+0.30 | 8BJ | 8 | 3±0.0125 | 9.4+0.30 |
9BH | 9 | 3+0.0250 | 10.4+0.30 | 9BJ | 9 | 3±0.0125 | 10.4+0.30 |
10BH | 10 | 3+0.0250 | 11.4+0.30 | 10BJ | 10 | 3±0.0125 | 11.4+0.30 |
11BH | 11 | 4+0.0300 | 12.8+0.30 | 11BJ | 11 | 4±0.0150 | 12.8+0.30 |
12BH | 12 | 4+0.0300 | 13.8+0.30 | 12BJ | 12 | 4±0.0150 | 13.8+0.30 |
13BH | 13 | 5+0.0300 | 15.3+0.30 | 13BJ | 13 | 5±0.0150 | 15.3+0.30 |
14BH | 14 | 5+0.0300 | 16.3+0.30 | 14BJ | 14 | 5±0.0150 | 16.3+0.30 |
15BH | 15 | 5+0.0300 | 17.3+0.30 | 15BJ | 15 | 5±0.0150 | 17.3+0.30 |
16BH | 16 | 5+0.0300 | 18.3+0.30 | 16BJ | 16 | 5±0.0150 | 18.3+0.30 |
17BH | 17 | 5+0.0300 | 19.3+0.30 | 17BJ | 17 | 5±0.0150 | 19.3+0.30 |
18BH | 18 | 6+0.0300 | 20.8+0.30 | 18BJ | 18 | 6±0.0150 | 20.8+0.30 |
19BH | 19 | 6+0.0300 | 21.8+0.30 | 19BJ | 19 | 6±0.0150 | 21.8+0.30 |
20BH | 20 | 6+0.0300 | 22.8+0.30 | 20BJ | 20 | 6±0.0150 | 22.8+0.30 |
22BH | 22 | 6+0.0300 | 24.8+0.30 | 22BJ | 22 | 6±0.0150 | 24.8+0.30 |
24BH | 24 | 8+0.0360 | 27.3+0.30 | 24BJ | 24 | 8±0.0180 | 27.3+0.30 |
25BH | 25 | 8+0.0360 | 28.3+0.30 | 25BJ | 25 | 8±0.0180 | 28.3+0.30 |
28BH | 28 | 8+0.0360 | 31.3+0.30 | 28BJ | 28 | 8±0.0180 | 31.3+0.30 |
30BH | 30 | 8+0.0360 | 33.3+0.30 | 30BJ | 30 | 8±0.0180 | 33.3+0.30 |
32BH | 32 | 10+0.0360 | 35.3+0.30 | 32BJ | 32 | 10±0.0180 | 35.3+0.30 |
35BH | 35 | 10+0.0360 | 38.3+0.30 | 35BJ | 35 | 10±0.0180 | 38.3+0.30 |
38BH | 38 | 10+0.0360 | 41.3+0.30 | 38BJ | 38 | 10±0.0180 | 41.3+0.30 |
40BH | 40 | 12+0.0430 | 43.3+0.30 | 40BJ | 40 | 12±0.0215 | 43.3+0.30 |
42BH | 42 | 12+0.0430 | 45.3+0.30 | 42BJ | 42 | 12±0.0215 | 45.3+0.30 |
45BH | 45 | 14+0.0430 | 48.8+0.30 | 45BJ | 45 | 14±0.0215 | 48.8+0.30 |
---|
*We can also handle standards not listed above. Consult Miki Pulley.
Standard Bore Diameter
Model | Standard bore diameter, d2 (mm) |
8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 22 | 24 | 25 | 28 | 30 | 32 | 35 | 38 | 40 | 42 | 45 |
SFC-025SA2/DA2 | ● | ● | ● | ● | ● | ● | ● | | | | | | | | | | | | | | | | | |
SFC-030SA2/DA2 | ● | ● | ● | ● | ● | ● | ● | ○ | ○ | | | | | | | | | | | | | | | |
SFC-035SA2/DA2 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ○ | ○ | ○ | | | | | | | | | | | | |
SFC-040SA2/DA2 | 9 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ○ | ○ | ○ | | | | | | | | | |
SFC-050SA2/DA2 | 18 | 20 | 22 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ○ | ○ | | | | | | |
SFC-055SA2/DA2 | | | 31 | 34 | 36 | 38 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | | | | | | |
SFC-060SA2/DA2 | | | | 50 | 51 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ○ | ○ | | | | |
SFC-080SA2/DA2 | | | | | | | | | | | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ○ | ○ | | |
SFC-090SA2/DA2 | | | | | | | | | | | | | | | | ● | ● | ● | ● | ● | ● | ● | ○ | ○ |
SFC-100SA2/DA2 | | | | | | | | | | | | | | | | | | | 226 | ● | ● | ● | ● | ● |
*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].