Product Information

SFC Models Specifications

SFC-SA2 Types

[Specifications]

ModelRated torque [N・m]MisalignmentMax. rotation speed [min-1Torsional stiffness [N・m/rad]Axial stiffness[N/mm]TypeMoment of inertia [kg・m2Mass [kg]
Parallel [mm]Angular [°]Axial [mm]
SFC-002SA20.250.010.5±0.041000019034C0.06×10-60.003
SFC-005SA20.60.020.5±0.0510000500140C0.26×10-60.007
SFC-010SA210.021±0.1100001400140C0.58×10-60.011
SFC-020SA220.021±0.1510000370064C2.39×10-60.025
SFC-025SA240.021±0.1910000560060C3.67×10-60.029
SFC-030SA250.021±0.210000800064A4.07×10-60.034
B6.09×10-60.041
C8.20×10-60.049
SFC-035SA2100.021±0.251000018000112C18.44×10-60.082
SFC-040SA2120.021±0.3100002000080A16.71×10-60.077
B22.55×10-60.085
C29.25×10-60.100
SFC-050SA2250.021±0.4100003200048A55.71×10-60.159
B76.26×10-60.177
C99.03×10-60.206
SFC-055SA2400.021±0.42100005000043C188.0×10-60.314
SFC-060SA2600.021±0.45100007000076.4A145.9×10-60.283
B205.0×10-60.326
C268.6×10-60.385
SFC-080SA21000.021±0.5510000140000128C710.6×10-60.708
SFC-090SA21800.021±0.6510000100000108C1236×10-60.946
SFC-100SA22500.021±0.7410000120000111C1891×10-61.202

*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]
Modeld1*1d2*1DDBNLLFSA1A2CKMTightening torque [N・m]Type
Min.Max.Min.Max.
SFC-002SA235351212.412.355.90.553.71.95.61-M1.60.23~0.28C
SFC-005SA236361616.77.8514.82.56.51-M20.4~0.5C
SFC-010SA238381919.359.151.055.8*23.158.51-M2.5*31.0~1.1*3C
SFC-020SA24104112623.1510.751.659.53.310.61-M2.51.0~1.1C
SFC-025SA25145142923.410.751.9113.314.51-M2.51.0~1.1C
SFC-030SA25105103421.627.312.42.583.7514.51-M31.5~1.9A
510Over 1016812.5B
Over 1014Over 101612.5C
SFC-035SA2616619393415.53144.5171-M43.4~4.1C
SFC-040SA28158154429.63415.53114.519.51-M43.4~4.1A
815Over 15241117B
Over 1519Over 152417C
SFC-050SA2819819563843.420.52.414.56261-M57.0~8.5A
819Over 193014.522B
Over 1925Over 193022C
SFC-055SA2103010306350.6242.6237.75311-M614~15C
SFC-060SA211241124684653.625.23.217.57.75311-M614~15A
1124Over 243517.526.5B
Over 2430Over 243526.5C
SFC-080SA2183518408268308289381-M827~30C
SFC-090SA2254025459468.3308.3349421-M827~30C
SFC-100SA23245324510469.8309.8399481-M827~30C

*The rated torque of the coupling may be limited for bore diameters marked with *1. Consult "Standard Bore Diameters".

*The øDB value is measured assuming that the head of the clamping bolt is larger than the external diameter of the 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.

*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 g6・h6・h7 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 bore diameter]

ModelStandard bore diameter d1 [mm]Standard bore diameter d2 [mm]
Min.Max.34566.357899.52510111213141516171819202224252830323538404245
SFC-002SA235              
SFC-005SA236             
SFC-010SA238            
SFC-020SA2410           
SFC-025SA2514 2.1         
SFC-030SA2514 2.83.4       
SFC-035SA2616 556.6      
SFC-040SA2819   9    
SFC-050SA2825   18202222   
SFC-055SA21030     31343638   
SFC-060SA21130     5051  
SFC-080SA21835          
SFC-090SA22540           
SFC-100SA23245             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. Example of product that cannot be manufactured: SFC-020SA2-11B-11B; example of product that can be manufactured: SFC-020SA2-10B-11B

*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].

*These range of applicable bore diameters is between the minimum and maximum bore diameters of the dimensions table. Consult Miki Pulley regarding special arrangements for other bore diameters.

SFC-DA2 Types

[Specifications]

ModelRated torque [N・m]MisalignmentMax. rotation speed [min-1Torsional stiffness [N・m/rad]Axial stiffness[N/mm]TypeMoment of inertia [kg・m2Mass [kg]
Parallel [mm]Angular [°]Axial [mm]
SFC-002DA20.250.030.5 (On one side)±0.08100009517C0.07×10-60.004
SFC-005DA20.60.050.5 (On one side)±0.11000025070C0.37×10-60.010
SFC-010DA210.111 (On one side)±0.21000070070C0.80×10-60.015
SFC-020DA220.151 (On one side)±0.3310000185032C3.43×10-60.035
SFC-025DA240.161 (On one side)±0.3810000280030C5.26×10-60.040
SFC-030DA250.181 (On one side)±0.410000400032A7.43×10-60.054
B9.45×10-60.060
C11.56×10-60.068
SFC-035DA2100.241 (On one side)±0.510000900056C26.93×10-60.121
SFC-040DA2120.241 (On one side)±0.6100001000040A29.98×10-60.124
B35.82×10-60.131
C42.52×10-60.146
SFC-050DA2250.281 (On one side)±0.8100001600024A98.34×10-60.250
B118.9×10-60.268
C141.7×10-60.298
SFC-055DA2400.311 (On one side)±0.9100002500021.5C261.3×10-60.459
SFC-060DA2600.341 (On one side)±0.9100003500038.2A256.6×10-60.447
B315.7×10-60.489
C379.3×10-60.549
SFC-080DA21000.521 (On one side)±1.10100007000064C1039×10-61.037
SFC-090DA21800.521 (On one side)±1.30100005000054C1798×10-61.369
SFC-100DA22500.551 (On one side)±1.48100006000055.5C2754×10-61.739

*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]
Modeld1*1d2*1DDBNLLFLPSA1A2Cd3KMTightening torque [N・m]Type
Min.Max.Min.Max.
SFC-002DA235351212.415.75.92.80.553.71.95.25.61-M1.60.23~0.28C
SFC-005DA236361623.27.855.514.82.56.56.51-M20.4~0.5C
SFC-010DA238381925.99.155.51.055.8*23.158.58.51-M2.5*31.0~1.1*3C
SFC-020DA24104112632.310.757.51.659.53.310.610.61-M2.51.0~1.1C
SFC-025DA25145142932.810.757.51.9113.31514.51-M2.51.0~1.1C
SFC-030DA25105103421.637.812.482.583.751514.51-M31.5~1.9A
510Over 1016812.5B
Over 1014Over 101612.5C
SFC-035DA2616619394815.5113144.517171-M43.4~4.1C
SFC-040DA28158154429.64815.5113114.52019.51-M43.4~4.1A
815Over 15241117B
Over 1519Over 152417C
SFC-050DA2819819563859.820.5142.414.5626261-M57.0~8.5A
819Over 193014.522B
Over 1925Over 193022C
SFC-055DA2103010306368.72415.52.6237.7531311-M614~15C
SFC-060DA211241124684673.325.216.53.217.57.7531311-M614~15A
1124Over 243517.526.5B
Over 2430Over 243526.5C
SFC-080DA21835184082983022828940381-M827~30C
SFC-090DA2254025459498.630228.334947421-M827~30C
SFC-100DA232453245104101.630229.839950481-M827~30C

*The rated torque of the coupling may be limited for bore diameters marked with *1. Consult "Standard Bore Diameters".

*The øDB value is measured assuming that the head of the clamping bolt is larger than the external diameter of the 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.

*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 range from φ3 mm to φ7 mm. The value is M2 for a d1 or d2 of φ8 mm. The tightening torque for M2 is 0.4 N·m to 0.5 N·m.

*The recommended processing tolerance for paired mounting shafts is g6・h6・h7 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 bore diameter]

ModelStandard bore diameter d1 [mm]Standard bore diameter d2 [mm]
Min.Max.34566.357899.52510111213141516171819202224252830323538404245
SFC-002DA235
SFC-005DA236
SFC-010DA238
SFC-020DA2410
SFC-025DA25142.1
SFC-030DA25142.83.4
SFC-035DA2616556.6
SFC-040DA28199
SFC-050DA282518202222
SFC-055DA2103031343638
SFC-060DA211305051
SFC-080DA21835
SFC-090DA22540
SFC-100DA23245226

*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. Example of product that cannot be manufactured: SFC-020DA2-11B-11B; example of product that can be manufactured: SFC-020DA2-10B-11B

*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].

*These range of applicable bore diameters is between the minimum and maximum bore diameters of the dimensions table. Consult Miki Pulley regarding special arrangements for other bore diameters.

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