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Miki Pulley SFH Models | TKK Corporation


Miki Pulley SFH Models

SFH S Types

Specifications SFH-□S

Model 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］
Angular ［°］ Axial ［mm］
SFH-150S 1000 1 ±0.4 5900 1500000 244 12.60×10-3 4.71
SFH-170S 1300 1 ±0.5 5100 2840000 224 26.88×10-3 7.52
SFH-190S 2000 1 ±0.5 4700 3400000 244 43.82×10-3 10.57
SFH-210S 4000 1 ±0.55 4300 4680000 508 68.48×10-3 13.78
SFH-220S 5000 1 ±0.6 4000 5940000 448 102.53×10-3 18.25
SFH-260S 8000 1 ±0.7 3400 10780000 612 233.86×10-3 29.66

*Max. rotation speed does not take into account dynamic balance.
*The moment of inertia and mass are measured for the maximum bore diameter.

Dimensions SFH-□S

Unit [mm]
Model d1, d2 D N L LF S F K M
Pilot bore Min. Max.
SFH-150S 20 22 70 152 104 101 45 11 5 94 6-M8×36
SFH-170S 25 28 80 178 118 124 55 14 6 108 6-M10×45
SFH-190S 30 32 85 190 126 145 65 15 10 116 6-M12×54
SFH-210S 35 38 90 210 130 165 75 15 8 124 6-M16×60
SFH-220S 45 48 100 225 144 200 90 20 -2 132 6-M16×60
SFH-260S 50 55 115 262 166 223 100 23 11 150 6-M20×80

*Pilot bores are to be drilled into the part. See the standard hole-drilling standards for information on bore drilling.
*The nominal diameter of the reamer bolt is equal to the quantity minus the nominal diameter of the screw threads times the nominal length.

Specifications SFH-□S-□K-□K

Model 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］
Angular ［°］ Axial ［mm］
SFH-150S 1000 1 ±0.4 5900 1500000 244 25.14×10-3 8.95
SFH-170S 1300 1 ±0.5 5100 2840000 224 47.90×10-3 12.53
SFH-190S 2000 1 ±0.5 4700 3400000 244 60.40×10-3 14.21
SFH-210S 4000 1 ±0.55 4300 4680000 508 80.50×10-3 16.12

*Max. rotation speed does not take into account dynamic balance.
*The moment of inertia and mass in the table are measured for the maximum bore diameter.

Dimensions SFH-□S-□K-□K

Unit [mm]
Model D L d1, d2 N1, N2 LF S C K M M1 M2
SFH-150S 152 157 38, 40, 42, 45, 50 108 65 11 8 94 6-M8×36 6-M8×60 3-M8
55, 56, 60, 65, 70 128
SFH-170S 178 160 38, 40, 42, 45, 50 108 65 14 8 108 6-M10×45 6-M8×60 3-M8
55, 56, 60, 65, 70 128
75, 80 148
SFH-190S 190 175 38, 40, 42, 45, 50 108 70 15 10 116 6-M12×54 6-M10×65 3-M10
55, 56, 60, 65, 70 128
75, 80, 85 148
SFH-210S 210 181 38, 40, 42, 45, 50 108 73 15 10 124 6-M16×60 6-M10×65 3-M10
55, 56, 60, 65, 70 128
75, 80, 85, 90 148

*The nominal diameters of each bolt and tap are equal to the quantity minus the nominal diameter of the screw threads times the nominal length. The quantities for the pressure bolt M1 and detachment screw hole M2 are quantities for the hub on one side.

Standard bore diameter combinations

Model Standard bore diameters d1, d2 ［mm］
38 40 42 45 48 50 55 56 60 65 70 75 80 85 90
SFH-150S ● ● ● ● ● ● ● ● ● ● ●
SFH-170S 1100 1200 1250 ● ● ● ● ● ● ● ● ● ●
SFH-190S 1800 1900 ● ● ● ● ● ● ● ● ● ● ● ●
SFH-210S 1800 1900 2000 2150 2300 2400 2600 2650 2850 3100 3350 3600 3800 ● ●

*The bore diameters marked with ● or numbers are supported as standard bore diameter.
*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 value [N·m].

SFH G Types

Specifications SFH-□G

Model 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］
SFH-150G 1000 1.4 1 (On one side) ±0.8 5900 750000 122 21.87×10-3 8.72
SFH-170G 1300 1.6 1 (On one side) ±1.0 5100 1420000 112 51.07×10-3 13.94
SFH-190G 2000 2.0 1 (On one side) ±1.0 4700 1700000 122 81.58×10-3 19.51
SFH-210G 4000 2.1 1 (On one side) ±1.1 4300 2340000 254 125.50×10-3 24.26
SFH-220G 5000 2.3 1 (On one side) ±1.2 4000 2970000 224 176.91×10-3 30.27
SFH-260G 8000 2.9 1 (On one side) ±1.4 3400 5390000 306 433.47×10-3 53.11

*Max. rotation speed does not take into account dynamic balance.
*The moment of inertia and mass are measured for the maximum bore diameter.

Dimensions SFH-□G

Unit [mm]
Model d1, d2 D N L LF LS S F K M
Pilot bore Min. Max.
SFH-150G 20 22 70 152 104 182 45 70 11 5 94 12-M8×36
SFH-170G 25 28 80 178 118 218 55 80 14 6 108 12-M10×45
SFH-190G 30 32 85 190 126 260 65 100 15 10 116 12-M12×54
SFH-210G 35 38 90 210 130 290 75 110 15 8 124 12-M16×60
SFH-220G 45 48 100 225 144 335 90 115 20 -2 132 12-M16×60
SFH-260G 50 55 115 262 166 391 100 145 23 11 150 12-M20×80

*Pilot bores are to be drilled into the part. See the standard hole-drilling standards for information on bore drilling.
*If you require a product with an LS dimension other than that above, contact Miki Pulley with your required dimension [mm]. Please contact Miki Pulley for assistance if LS ≧ 1000.
*The nominal diameter of the reamer bolt is equal to the quantity minus the nominal diameter of the screw threads times the nominal length.

Dimensions for Vertical Applications with Max. LS Dimensions SFH-□G-□K-□K

Unit [mm]
Model LS ［mm］
SFH-150G 1100
SFH-170G 800
SFH-190G 900
SFH-210G 2000
SFH-220G 1900
SFH-260G 2500

*When considering vertical use and the LS dimension is greater than that in the above table, consult Miki Pulley.

Specifications SFH-□G-□K-□K

Model 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］
SFH-150G 1000 1.4 1 (On one side) ±0.8 5900 750000 122 34.41×10-3 12.96
SFH-170G 1300 1.6 1 (On one side) ±1.0 5100 1420000 112 72.09×10-3 18.95
SFH-190G 2000 2.0 1 (On one side) ±1.0 4700 1700000 122 98.15×10-3 23.14
SFH-210G 4000 2.1 1 (On one side) ±1.1 4300 2340000 254 137.53×10-3 26.61

*Max. rotation speed does not take into account dynamic balance.
*The moment of inertia and mass in the table are measured for the maximum bore diameter.

Dimensions SFH-□G-□K-□K

Unit [mm]
Model D L d1, d2 N1, N2 LF LS S C K M M1 M2
SFH-150G 152 238 38, 40, 42, 45, 50 108 65 70 11 8 94 12-M8×36 6-M8×60 3-M8
55, 56, 60, 65, 70 128
SFH-170G 178 254 38, 40, 42, 45, 50 108 65 80 14 8 108 12-M10×45 6-M8×60 3-M8
55, 56, 60, 65, 70 128
75, 80 148
SFH-190G 190 290 38, 40, 42, 45, 50 108 70 100 15 10 116 12-M12×54 6-M10×65 3-M10
55, 56, 60, 65, 70 128
75, 80, 85 148
SFH-210G 210 306 38, 40, 42, 45, 50 108 73 110 15 10 124 12-M16×60 6-M10×65 3-M10
55, 56, 60, 65, 70 128
75, 80, 85, 90 148

*If you require a product with an LS dimension other than that above, contact Miki Pulley with your required dimension [mm]. Please contact Miki Pulley for assistance if LS ≧ 1000.
*The nominal diameters of each bolt and tap are equal to the quantity minus the nominal diameter of the screw threads times the nominal length. The quantities for the pressure bolt M1 and detachment screw hole M2 are quantities for the hub on one side.

Combination of Standard Bore Diameter

Model Standard bore diameters d1, d2 ［mm］
38 40 42 45 48 50 55 56 60 65 70 75 80 85 90
SFH-150G ● ● ● ● ● ● ● ● ● ● ●
SFH-170G 1100 1200 1250 ● ● ● ● ● ● ● ● ● ●
SFH-190G 1800 1900 ● ● ● ● ● ● ● ● ● ● ● ●
SFH-210G 1800 1900 2000 2150 2300 2400 2600 2650 2850 3100 3350 3600 3800 ● ●

*The bore diameters marked with ● or numbers are supported as standard bore diameter.
*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 value [N·m].

Dimensions for Vertical Applications with Max. LS Dimensions

Unit [mm]
Model LS ［mm］
SFH-150G 1100
SFH-170G 800
SFH-190G 900
SFH-210G 2000

*When considering vertical use and the LS dimension is greater than that in the above table, consult Miki Pulley.

Standard Hole-drilling Standards

Unit [mm]
Models compliant with the old JIS standards (Class 2) Models compliant with the new JIS standards Models compliant with the new motor standards
Nominal bore diameter Bore diameter (d1, d2) Keyway width (W1, W2) Keyway height (T1, T2) Set screw hole (M) Nominal bore diameter Bore diameter (d1, d2) Keyway width (W1, W2) Keyway height (T1, T2) Set screw hole (M) Nominal bore diameter Bore diameter (d1, d2) Keyway width (W1, W2) Keyway height (T1, T2) Set screw hole (M)
Tolerance SFM DS E9 — Tolerance H7 H9 — Tolerance G7, F7 H9 —
22 22+0.0210 7+0.061+0.025 25.0+0.30 2-M6 22H 22+0.0210 6+0.0300 24.8+0.30 2-M5 — — — — —
24 24+0.0210 7+0.061+0.025 27.0+0.30 2-M6 24H 24+0.0210 8+0.0360 27.3+0.30 2-M6 24N 24+0.028+0.007 8+0.0360 27.3+0.30 2-M6
25 25+0.0210 7+0.061+0.025 28.0+0.30 2-M6 25H 25+0.0210 8+0.0360 28.3+0.30 2-M6 — — — — —
28 28+0.0210 7+0.061+0.025 31.0+0.30 2-M6 28H 28+0.0210 8+0.0360 31.3+0.30 2-M6 28N 28+0.028+0.007 8+0.0360 31.3+0.30 2-M6
30 30+0.0210 7+0.061+0.025 33.0+0.30 2-M6 30H 30+0.0210 8+0.0360 33.3+0.30 2-M6 — — — — —
32 32+0.0250 10+0.061+0.025 35.5+0.30 2-M8 32H 32+0.0250 10+0.0360 35.3+0.30 2-M8 — — — — —
35 35+0.0250 10+0.061+0.025 38.5+0.30 2-M8 35H 35+0.0250 10+0.0360 38.3+0.30 2-M8 — — — — —
38 38+0.0250 10+0.061+0.025 41.5+0.30 2-M8 38H 38+0.0250 10+0.0360 41.3+0.30 2-M8 38N 38+0.050+0.025 +0.036010 41.3+0.30 2-M8
40 40+0.0250 10+0.061+0.025 43.5+0.30 2-M8 40H 40+0.0250 12+0.0430 43.3+0.30 2-M8 — — — — —
42 42+0.0250 12+0.061+0.025 45.5+0.30 2-M8 42H 42+0.0250 12+0.0430 45.3+0.30 2-M8 42N 42+0.050+0.025 12+0.0430 45.3+0.30 2-M8
45 45+0.0250 12+0.061+0.025 48.5+0.30 2-M8 45H 45+0.0250 14+0.0430 48.8+0.30 2-M10 — — — — —
48 48+0.0250 12+0.061+0.025 51.5+0.30 2-M8 48H 48+0.0250 14+0.0430 51.8+0.30 2-M10 48N 48+0.050+0.025 14+0.0430 51.8+0.30 2-M10
50 50+0.0250 12+0.061+0.025 53.5+0.30 2-M8 50H 50+0.0250 14+0.0430 53.8+0.30 2-M10 — — — — —
55 55+0.0300 15+0.075+0.032 60.0+0.30 2-M10 55H 55+0.0300 16+0.0430 59.3+0.30 2-M10 55N 55+0.060+0.030 16+0.0430 59.3+0.30 2-M10
56 56+0.0300 15+0.075+0.032 61.0+0.30 2-M10 56H 56+0.0300 16+0.0430 60.3+0.30 2-M10 — — — — —
60 60+0.0300 15+0.075+0.032 65.0+0.30 2-M10 60H 60+0.0300 18+0.0430 64.4+0.30 2-M10 60N 60+0.060+0.030 18+0.0430 64.4+0.30 2-M10
65 65+0.0300 18+0.075+0.032 71.0+0.30 2-M10 65H 65+0.0300 18+0.0430 69.4+0.30 2-M10 65N 65+0.060+0.030 18+0.0430 69.4+0.30 2-M10
70 70+0.0300 18+0.075+0.032 76.0+0.30 2-M10 70H 70+0.0300 20+0.0520 74.9+0.50 2-M10 — — — — —
75 75+0.0300 20+0.092+0.040 81.0+0.50 2-M10 75H 75+0.0300 20+0.0520 79.9+0.50 2-M10 75N 75+0.060+0.030 20+0.0520 79.9+0.50 2-M10
80 80+0.0300 20+0.092+0.040 86.0+0.50 2-M10 80H 80+0.0300 22+0.0520 85.4+0.50 2-M12 — — — — —
85 85+0.0350 24+0.092+0.040 93.0+0.50 2-M12 85H 85+0.0350 22+0.0520 90.4+0.50 2-M12 85N 85+0.071+0.035 22+0.0520 90.4+0.50 2-M12
90 90+0.0350 24+0.092+0.040 98.0+0.50 2-M12 90H 90+0.0350 25+0.0520 95.4+0.50 2-M12 — — — — —
95 95+0.0350 24+0.092+0.040 103.0+0.50 2-M12 95H 95+0.0350 25+0.0520 100.4+0.50 2-M12 95N 95+0.071+0.035 25+0.0520 100.4+0.50 2-M12
100 100+0.0350 28+0.092+0.040 109.0+0.50 2-M12 100H 100+0.0350 28+0.0520 106.4+0.50 2-M12 — — — — —
115 115+0.0350 32+0.112+0.050 125.0+0.50 2-M12 115H 115+0.0350 32+0.0520 122.4+0.50 2-M12 — — — — —

Agent Brand
TKK Corporation
1023 MS Siam Tower, 24 Floor, Room 244-247, Rama 3 Road,
Chong Nonsi, Yannawa, Bangkok 10120 Thailand
Tel. +66 2164 1515    Fax. +66 2164 1516
Email: info@tkkcorporation.com
Contact for Oversea
Ms. Alyce (Senior Oversea Sales)
Tel. +6685 111 7620 #126
Email : oversea@tkkcorporation.com
Contact Japanese
Tel. +66 63-373-2764
Email : japanese@tkkcorporation.com
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