New SFS・SFH - Kaishin · 2015. 5. 22. · sfs-140ss 45･48 98 36. 5 ― d1･d2 82 94 144 s k m1 8384 -m 6 8 42 4-m6 12 61 6-m8 d sfs-100ss 104 35 73 30.5 10 48 4-m6

11

■SFS-SS ■SFS-DS

■SFS-S ■SFS-S-M-M ■SFS-S-M-C

■SFS-W ■SFS-G ■SFH

Hexagon socket head cap screw: Equivalent of SCM435�Surface treatment: Black oxide finish

Element material: Plate spring SUS304�Collar Equivalent of S45C

Sleeve material: Equivalent of S45C�Surface treatment: Black oxide finish



Flange material: Equivalent of S45C�Surface treatment: Black oxide finish







Pressure bolt material: SCM435�Surface treatment: Black oxide finish









Collar Equivalent of S45C�Collar material: Equivalent of S45C




Collar Equivalent of S45C�Collar material: Equivalent of S45C


Reamer bolt material: SCM435�Surface treatment: Black oxide finish






Spacer material: Equivalent of S45C�Surface treatment: Black oxide finish



Spacer material: Carbon steel�Surface treatment: Black oxide finish or coating

SFS・SFH

Permissible torque [N・m] 20～ 8000

Pilot bore/Additional machining range [mm] φ7～ 115

Operational temperature [℃] －30～＋120

Backlash Zero

Max.permissiblemisalignment

Parallel offset [mm] 0.02～ 0.9

Angular misalignment [°] 1 (one side)

Axial displacement [mm] ±0.6～±0.9

■ Extra-high torsional stiffnessHigh torsional stiffness assures accurate shaft rotationand ultraprecision control.

■ No backlashBacklash is not caused due to the power transmission byfriction locking.It is most suitable for ultraprecision control.

■ Preassembled productThe SFS-SS/DS type is shipped from a factory as afinished product.

■ Structure and Material

12

SFS-SS/DS

●High rigidity and flexibilityThe single-element type with high rigidity (SFS-SS) and double-element type with high flexibility (SFS-DS) are available.

●Preassembled productBoth sides of flange are assembled with a high-accuracyexclusive jig to obtain a high-level concentricity. Assemblingtime can be reduced.

●Reliable shaft fasteningHigh fastening power can be obtained by tightening thepressure bolts on the flange edge in order. In addition, boresare already drilled on the flange circumference to insert a round barto prevent corotation.

●Corresponding to a large-diametershaft

Since there is no guide face which enhances the insertingaccuracy of sleeve, a large-diameter shaft can be used.

SFS-S/W/G

●Wide range of productsThe single-element type with high rigidity (SFS-S), double-element type with high flexibility (SFS-W) and SFS-F for a longcenter distance are available.

●Free mounting methodProducts are made with prepared bores as standard, whichenables shaft fastening by key or thermal fit.The SFS-S/W/F-M-M types using friction locking and SFS-S/W/G-M-C types corresponding to tapered shafts ofservomotors are also available.

●High-precision mountingThe SFS-S/W/G-M-M type has a design whose sleeve isinserted into the inside flange, which allows high-precisionmounting.

●Shipment of partly-finished productProduct is shipped in parts for easy mounting in any place.Preassembled product is also available upon request.

SFH-G

●High torque transmissionSFH model is a large-size double-element type coupling with aspacer in between. Six bolts are used to achieve high torque transmission andreliability.

■SFS-SS ■SFS-DS

■SFS-SS-K-K

■SFS-S ■SFS-W

■SFS-G

■SFS-S-M-M ■SFS-S-M-C

■SFH-G

13

■ Specification

■ Dimensions

K

φd2φN2

φD

LS LF C

φd1φN1

H

M

Screw bore for dismounting　Ｍ２�

Pressure bolt　M1

ModelPermissibletorque[N･m]

Max. permissible misalignment Max. rotationspeed[minー1]

Moment ofinertia[kg･m2]

Mass[kg] Parallel offset

[mm] Angular mis-

alignment [゜] Axial dis-

placement [mm]

SFS-080SS 100 0.02 1 ±0.55 15000 1.24×10－3 1.38SFS-090SS 180 0.02 1 ±1.2 15000 2.08×10－3 1.70SFS-100SS 250 0.02 1 ±1.4 15000 3.58×10－3 2.30SFS-120SS 450 0.02 1 ±1.6 15000 6.32×10－3 3.02SFS-140SS 800 0.02 1 ±1.8 15000 11.30×10－3 4.47

Torsionalstiffness[N･m/rad]

83000

170000

250000

430000

780000

Axialdisplacement[N/mm]

60

122

160

197

313

Price

－－－－－

Model N1･N2 LF CADfile No.

SFS-080SS

22 58

26.5 ―

SFS-090SS

32 68

26.5 ―

SFS-140SS

45･48 98

36.5 ―

d1･d2

82

94

144

S K M1

8 38 4-M6

8 42 4-M6

12 61

6-M8

D

SFS-100SS 104

35 73

30.5 10 48 4-M6 ―

SFS-120SS 122

38･40･42 78

30.5 11

C

5

5

5.5

5

5 54 4-M6 ―

L

71

71

81

82

96

25 63

28･30･32 68

35 73

35 73

38･40･42 78

45 83

48 88

38･40･42 78

45 83

48･50･52 88

55･60 98

45 83

48･50･52 88

55･60･62 98

65･70 108

50･52･55 108

60 118

62･65･70 128

75･80 138

6-M84-M84-M84-M8

H M

4-5.1 drill M8

4-6.8 drill M8

4-8.6 drill M8

4-8.6 drill M10

4-8.6 drill M12

M2

2-M6

2-M6

2-M6

2-M6

2-M8

* The indicated values in the moment of inertia and mass are measured with the maximum bore diameter.

SFS-SS

Unit [mm]

* The combination of d1 and d2 is not available if both bore diameters are greater than the dimension K. Refer to the "Combination of standard bore diameters".

14

Size

SFS - 080 SS- 25 K- 30 KType: SS�Single element, Iron hub

Bore diameter: d1-d2� K: Friction locking

■ Ordering Information

■Combination of standard bore diameters

52 410

●22

SFS-080SSStandard bore diameter d2 [mm]

22 25 28 30 32 35 38 40 42 45 48 50 52 55 60 62 65 70 75 80

2528303235

Standardbore dia.

d1[mm]

●●

●●●

●●●●

●●●●●

●●●●●●

45


22 25 28 30 32 35 38 40 42 45 48 50 52 55 60 62 65 70 75 80

4850525560

Standardbore dia.

d1[mm]

● ●●

●●●

●●●●

●●●●●

●●●●●●

●●●●●●

●●●●●●

●●●●●●

●●●●●●

●●●●●●

38


22 25 28 30 32 35 38 40 42 45 48 50 52 55 60 62 65 70 75 80

4042454850

Standardbore dia.

d1[mm]

300 300

315 315

300

330

315

300

330

350

315

300

330

350

370

315

300

330

350

370

390

315

300

330

350

370

390

410

315

300

330

350

370

390

410

315

300

330

350

370

390

410

315

300

330

350

370

390

410

315

300

330

350

370

390

410

315

300

330

350

370

390

35


22 25 28 30 32 35 38 40 42 45 48 50 52 55 60 62 65 70 75 80

38404245

Standardbore dia.d1[mm]

● ●●

●●●

●●●●

●●●●●

●●●●●

●●●●●

●●●●●

●●●●●

●●●●●

32


22 25 28 30 32 35 38 40 42 45 48 50 52 55 60 62 65 70 75 80

353840


● ●●

●●●

●●●●

●●●●

●●●●

●●●●

* The bore diameters with value or marked ● are supported as standard bore diameter.* The permissible torque of small bore diameter indicated in the column with value is limited by the shaft fixing mechanism. The value indicates its operating torque [N・m].

15

■ Specification

K

φd1

φd3

φN1

φd2

S

φN2

LLP CLF

φD

M

H

Pressure bolt　M1



Max. permissible misalignment Max. rotationspeed[minー1]



[mm] Angular mis-

alignment [゜] Axial dis-

placement [mm]

SFS-080DS 100 0.3 1 (one side) ±1.1 10000 1.61×10－3 1.74SFS-090DS 180 0.3 1 (one side) ±2.4 10000 2.71×10－3 2.16SFS-100DS 250 0.3 1 (one side) ±2.8 10000 4.53×10－3 2.86SFS-120DS 450 0.4 1 (one side) ±3.2 10000 7.93×10－3 4.18SFS-140DS 800 0.4 1 (one side) ±3.6 10000 16.60×10－3 6.16


41000

85000

125000

215000

390000


30

61

80

98

156

Price

－－－－－

N1･N2 LF M2

SFS-080DS

22 58

26.5 2-M6

SFS-090DS

32 68

26.5 2-M6

SFS-140DS

45･48 98

36.5 2-M8

d1･d2

82

94

144

LP S M1

10 8 4-M6

10 8 4-M6

14 12

6-M8

D

SFS-100DS 104

35 73

30.5 10 10 4-M6 2-M6

SFS-120DS 122

38･40･42 78

30.5 14 11

C

5

5

5.5

5

5

d3

40

50

70

60

62 4-M6 2-M6

L

89

89

101

107

122

25 63

28･30･32 68

35 73

35 73

38･40･42 78

45 83

48 88

38･40･42 78

45 83

48･50･52 88

55･60 98

45 83

48･50･52 88

55･60･62 98

65･70 108

50･52･55 108

60 118

62･65･70 128

75･80 138

6-M84-M84-M84-M8

K H

38 4-5.1 drill

42 4-6.8 drill

48 4-8.6 drill

54 4-8.6 drill

61 4-8.6 drill

M

M8

M8

M8

M10

M12

CADfile No.

―

―

―

―

―

■ Dimensions

* The indicated values in the moment of inertia and mass are measured with the maximum bore diameter.

SFS-DS

Unit [mm]

* The combination of d1 and d2 is not available if both bore diameters are greater than the dimension K. Refer to the "Combination of standard bore diameters".

16

Size

SFS - 090 DS- 35 K- 48 KType: DS� Double element, Iron hub

Bore diameter: d1-d2� K: Friction locking


■Combination of standard bore diameters

52 410

●22

SFS-080DSStandard bore diameter d2 [mm]

22 25 28 30 32 35 38 40 42 45 48 50 52 55 60 62 65 70 75 80

2528303235

Standardbore dia.

d1[mm]

●●

●●●

●●●●

●●●●●

●●●●●●

45


22 25 28 30 32 35 38 40 42 45 48 50 52 55 60 62 65 70 75 80

4850525560

Standardbore dia.

d1[mm]

● ●●

●●●

●●●●

●●●●●

●●●●●●

●●●●●●

●●●●●●

●●●●●●

●●●●●●

●●●●●●

38


22 25 28 30 32 35 38 40 42 45 48 50 52 55 60 62 65 70 75 80

4042454850


300 300

315 315

300

330

315

300

330

350

315

300

330

350

370

315

300

330

350

370

390

315

300

330

350

370

390

410

315

300

330

350

370

390

410

315

300

330

350

370

390

410

315

300

330

350

370

390

410

315

300

330

350

370

390

410

315

300

330

350

370

390

35


22 25 28 30 32 35 38 40 42 45 48 50 52 55 60 62 65 70 75 80

38404245


● ●●

●●●

●●●●

●●●●●

●●●●●

●●●●●

●●●●●

●●●●●

●●●●●

32


22 25 28 30 32 35 38 40 42 45 48 50 52 55 60 62 65 70 75 80

353840


● ●●

●●●

●●●●

●●●●

●●●●

●●●●

* The bore diameters with value or marked ● are supported as standard bore diameter.* The permissible torque of small bore diameter indicated in the column with value is limited by the shaft fixing mechanism. The value indicates its operating torque [N・m].

17

■ Specification

K

FLLFS

φＤ�

φＮ�

φｄv

Reamer bolt M


Max. rotationspeed[minー1]



[mm] Axial dis-

placement [mm]

SFS-05S 20 1 ±0.6 25000 0.11×10－3 0.30SFS-06S 40 1 ±0.8 20000 0.30×10－3 0.50

SFS-10S 250 1 ±1.4 13000 2.60×10－3 2.10SFS-12S 450 1 ±1.6 11000 6.50×10－3 3.40SFS-14S 800 1 ±1.8 9500 9.90×10－3 4.90

Price

－－

－－－

SFS-08S 80 1 ±1.0 17000 0.87×10－3 1.00 －SFS-09S 180 1 ±1.2 15000 1.60×10－3 1.40 －

Max. permissible misalignment Torsionalstiffness[N･m/rad]


16000 43

29000 45

83000 60

170000 122

250000 160

430000 197

780000 313

Model

SFS-05SSFS-06S

SFS-14S

7

7

20

L

45

56

102

d1・d2

Pilot bore Min. Max.

SFS-08S 12 66

SFS-09S 12 68

8 20

25

35

38

42

50

60

8

14

14

22

D N

56 32

68 40

82 54

94 58

144 88

SFS-10S 20 22 104 68 80

SFS-12S 20 22 126 78 91

LF S F K M

20 5 11 24 4-M5×22

25 6 10 30 4-M6×25

30 6 11 38 4-M6×29

30 8 21 42 4-M8×36

35 10 16 48 4-M8×36

40 11 23 54 4-M10×45

45 12 31 61 4-M12×54

Size

SFS - 10 S- 25 H- 30 HType: S� Single element, iron hub

Bore diameter: d1- d2 with standard bore processing�* Blank if bore processing is not required.��


CADfile No.

SFS-S1SFS-S2SFS-S3SFS-S4SFS-S5SFS-S6SFS-S7

* For additional processing, refer to the "Standard bore processing specification" on page34.* Prepared bores are drilled bores.

SFS-S

* Specification above indicates SFS-□S type, and values of moment of inertia and mass are at max. bore diameter.* The max. rotation speed of SFS-□S-□M-□M type and SFS-□S-□M-□C type, and moment of inertia and mass is different from the specification above. Please contact us for details.* The table indicates the prices based on prepared bores.

Unit [mm]

■ Dimensions SFS-□S

18

Size

SFS - 08 S- 20 M- 16 CType: S� Single element, iron hub

Bore diameter: d1-d2� M: Friction locking� C: Tapered shaft correspondence

�


ModelW＋0.0300

T＋0.30

M2

SFS-06S

ｄ2 ｄ4 J LBoredia.

SFS-08SSFS-09S

ｄ1

11 4

16 5

16 5

16 5

D N1

68 40

82 54

94 58

N2

□M-11C 12･14･15 12.2 18 9 30 60.82-M5

□M-16C 15 17.3 28 10 40 75.8□M-16C 15･16･20･22 17.3 28 10 40 80.8 2-M6□M-16C 25･28 17.3 28 10 40 82.8 2-M6

LF1 LF2 S C K M M1

25 6 4.8 30 4-M6×2525

4-M540

30 6 4.8 38 4-M6×2940 4-M630 8 4.8 42 4-M8×3640 6-M6

CADfile No.

SFS-M11～M13,C1SFS-M13,C2SFS-M14～M17,C3SFS-M18,C4

* CAD file numbers differ in accordance with the bore diameter. Combine d1・d2 CAD file numbers when using them.

Unit [mm]

■ Dimensions SFS-□S-□M-□C

Model M2

SFS-08S 2-M6

SFS-09S 2-M6

2-M62-M82-M8

ｄ2

□M-□M□M-□M

L

75.677.6

Bore dia.

SFS-10S□M-□M＊1 101.6SFS-12S

ｄ1

15･16･20･22 15･16･20･22

35

25･28･30･35

35

D N1

82 54

94 58

68

78

144

N2

54

58

78

SFS-14S

104

88

12630･35

25･2825･2825･28

68 85.6□M-□M 25･28･30･35 68 89.6

35M-35M＊2 88 112.6

□M-35M

30･3535

LF1 LF2 S C K M M1

30 30 6 4.8 38 4-M6×29 4-M6

3030

8 4.8 42

48

54

61

4-M8×36 6-M638

6-M63535

40

10 4.85.35.3

4-M8×36

4-M10×45

4-M12×54

4-M86-M845

40 11

1245

CADfile No.

SFS-M14～M17SFS-M18～M110SFS-M24SFS-M21～M24SFS-M25～M26SFS-M27

* *1 The permissible torque of SFS-12S-30M-□M is limited by the shaft fixing mechanism of (30) and will be 380 [N・m].* *2 The permissible torque of SFS-14S-35M-35M is limited by the shaft fixing mechanism of (35) and will be 580 [N・m].* CAD file numbers differ in accordance with the bore diameter. Combine d1・d2 CAD file numbers when using them.

Unit [mm]

■ Dimensions SFS-□S-□M-□M

Size

SFS - 10 S- 25 M- 30 MType: S� Single element, iron hub

Bore diameter: d1-d2� M: Frictional locking


Reamer bolt M

φＮ２�

φｄ１�

φｄ２�

LLF1 LF2S

φＤ�

φＮ１�

Ｍ1Screw bore for dismounting Ｍ2Screw bore for dismounting M2 Ｍ１�

CC

K

J

C

φｄ１�

φd4 T

φｄ２�

W

φＤ�

L

φＮ１�

φＮ２�

LF2LF1S

Taper １/１０�

Screw bore for dismounting Ｍ２�M1

Reamer bolt M

K

19

■ Specification





[mm] Axial dis-

placement [mm]

SFS-05W 20 0.2 ±1.2 10000 0.14×10－3 0.40SFS-06W 40 0.3 ±1.6 8000 0.41×10－3 0.70

SFS-10W 250 0.5 ±2.8 5200 3.60×10－3 2.80SFS-12W 450 0.6 ±3.2 4400 9.20×10－3 4.90SFS-14W 800 0.7 ±3.6 3800 15.00×10－3 7.10

Price

－－

－－－

Model

SFS-05WSFS-06W

SFS-14W

7

7

20

L

58

74

144

SFS-08W 12 84

SFS-09W 12 98

8

8

14

14

22

D N

56 32

68 40

82 54

94 58

144 88

SFS-08W 80 0.3 ±2.0 6800 1.10×10－3 1.30 －SFS-09W 180 0.5 ±2.4 6000 2.20×10－3 2.10 －

Max. permissible misalignment

SFS-10W 20 22 104 68 110

SFS-12W 20 22

20

25

35

38

60

42

50 126 78 127

LF S F d3 K M

20 5 4 20 24 8-M5×15

25 6 3 24 30 8-M6×18

30 6 2 28 38 8-M6×20

30 8 12 32 42 8-M8×27

35 10 7 34 48 8-M8×27

40 11 10 40 54 8-M10×32

45 12 15 46 61 8-M12×38

Size

SFS - 10 W- 25 H- 30 H

Type: W� Double element, iron hub

Bore diameter: d1- d2 with standard bore processing�* Blank if bore processing is not required.


Angular mis-

alignment [゜]

1 (one side)1 (one side)1 (one side)1 (one side)1 (one side)1 (one side)1 (one side)

LP

8

12

12

22

20

25

30



8000 21

14000 22

41000 30

85000 61

125000 80

215000 98

390000 156

CADfile No.

SFS-W1

SFS-W2

SFS-W3

SFS-W4

SFS-W5

SFS-W6

SFS-W7

* For additional processing, refer to the "Standard bore processing specification" on page34.* Prepared bores are drilled bores.

FLLP

K

LFS

φＤ�

φＮ�

φｄv

Reamer bolt M

φd3

SFS-W

* Specification above indicates SFS-□W type, and values of moment of inertia and mass are at max. bore diameter.* The max. rotation speed of SFS-□W-□M-□M type and SFS-□W-□M-□C type, and moment of inertia and mass is different from the specification above. Please contact us for details.* The table indicates the prices based on prepared bores.

Unit [mm]

■ Dimensions SFS-□W

d1・d2

Pilot bore Min. Max.

20

ModelW＋0.0300

T＋0.30

M2

SFS-06W4 12.2

2-M5

SFS-08WSFS-09W

5 17.3

ｄ2

□M-11C□M-16C

d4 J L

18 9 78.828 10 93.8

Boredia. ｄ1

12･14･15 11

15 16

16 5

16 5

D N1

68 40

82

94

54

58

N2

30

40

□M-16C 15･16･20･22 17.3 28 10 40 98.8 2-M62-M6□M-16C 25･28 17.3 28 10 40 112.8

LF1 LF2 S C d3 K M M1

2525

6 4.8 24 30 8-M6×18 4-M5

30

30

40

6

8

4.84.8

28

32

38

42

8-M6×20

8-M8×27

40 4-M66-M640

Size

SFS - 08 W- 20 M- 16 C




LP

12

12

22

CADfile No.

――――

Unit [mm]

Model M2

SFS-08W 2-M6

SFS-09W

SFS-10WSFS-12WSFS-14W

2-M6

ｄ2

□M-□M□M-□M

L

93.6107.6

Bore dia.

□M-□M＊1 137.6 2-M8

ｄ1

15･16･20･22 15･16･20･2225･28 25･28

30･35 30･35

35

25･28･30･35

D N1

82 54

94

104

126

144

58

68

78

88

N2

54

58

78

□M-35M 25･28 68 115.62-M6□M-□M 25･28･30･35 68 119.6

35M-35M＊2 35 35 88 154.6 2-M8

LF1 LF2 S C d3 K M M1

30 30 6 4.8 28 38 8-M6×20 4-M6

3030

8 4.8 32 42 8-M8×27 6-M638

6-M63535

40

45

40

10

11

12

4.85.35.3

34

40

46

48

54

61

8-M8×27

8-M10×32

8-M12×38

4-M845 6-M8

Size

SFS - 10 W- 25 M- 30 M


Bore diameter: d1-d2� M: Friction locking


LP

12

22

20

25

30

CADfile No.

――――――

* *1 The permissible torque of SFS-12W-30M-□M is limited by the shaft fixing mechanism of (30) and will be 380 [N・m].* *2 The permissible torque of SFS-14W-35M-35M is limited by the shaft fixing mechanism of (35) and will be 580 [N・m].

Unit [mm]

■ Dimensions SFS-□W-□M-□C

■ Dimensions SFS-□W-□M-□M

φN2

K

φN1

φD φd2

φd1

φd3

Screw bore for dismounting Ｍ2

Screw bore for dismounting Ｍ２�

M1M1

LLF2C CS SLF1 LP

Reamer bolt M

φd2

T

W J

φN2

φd4

LLF2C S SLF1

K

φN1

LP

φD φd1

Taper １/１０�


M1

φd3

Reamer bolt M

21

■ Specification

FLSL

K

LFS

φＤ�

φＮ�

φｄ1

φｄ2

Reamer bolt M





[mm] Axial dis-

placement [mm]

SFS-05G 20 0.5 ±1.2 20000 0.20×10－3 0.50SFS-06G 40 0.5 ±1.6 16000 0.55×10－3 0.90

SFS-10G 250 0.6 ±2.8 10000 4.60×10－3 3.30SFS-12G 450 0.8 ±3.2 8000 11.80×10－3 5.80SFS-14G 800 0.9 ±3.6 7000 21.20×10－3 8.60

Price

－－

－－－

SFS-08G 80 0.5 ±2.0 13000 1.50×10－3 1.70 －SFS-09G 180 0.6 ±2.4 12000 2.90×10－3 2.40 －

Max. permissible misalignmentAngular mis-

alignment [゜]

1 (one side)1 (one side)1 (one side)1 (one side)1 (one side)1 (one side)1 (one side)



8000 21

14000 22

41000 30

85000 61

125000 80

215000 98

390000 156

* Specify the required LS dimensions when requiring products other than the above LS dimensions. (Ex: SFS-10G LS=500) Contact us if the LS is greater than or equal to 1000. * Prepared bores are drilled bores. For additional processing, refer to the "Standard bore processing specification" on page34.

Size

SFS - 12 G- 35 H- 35 HBore diameter: d1-d2 with standard bore processing�* Blank if bore processing is not required.Type: G�

Double-element� Floating shaft� Iron hub


Model D L

SFS-05G 20 56 74

SFS-06G 25 68 86

SFS-14G 60 144 160

Pilot bore Max.7

7

20

LF S M

20 5 8-M5×22

25 6 8-M6×25

45 12 8-M12×54

d1・d2

SFS-08G 12 35 82 98 30 6 8-M6×29

SFS-09G 12 38 94 106 30 8 8-M8×36

Min.8

8

14

14

22

N

32

40

54

58

88

LS

24

24

26

30

46

F K

11 24

10 30

11 38

21 42

31 61

CADfile No.SFS-G1SFS-G2SFS-G3SFS-G4

SFS-G7

SFS-10G 20 22 42 104 68 120 35 30 10 16 48 8-M8×36 SFS-G5SFS-12G 20 22 50 126 78 140 40 38 11 23 54 8-M10×45 SFS-G6

SFS-G

* Specification above indicates SFS-□G type, and values of moment of inertia and mass are at max. bore diameter.* The max. rotation speed of SFS-□G-□M-□M type and SFS-□G-□M-□C type, and moment of inertia and mass is different from the specification above. Please contact us for details.* The table indicates the prices based on prepared bores.

Unit [mm]

■ Dimensions SFS-□G

22

Model M2

SFS-08G 2-M6

SFS-09G

SFS-10GSFS-12GSFS-14G

2-M6

ｄ2

□M-□M□M-□M

L

93.6107.6

Bore dia.

□M-□M＊1 137.6 2-M8

ｄ1

15･16･20･22 15･16･20･2225･28 25･28

30･35 30･35

35

25･28･30･35

D N1

82 54

94

104

126

144

58

68

78

88

N2

54

58

78

□M-35M 25･28 68 115.62-M6□M-□M 25･28･30･35 68 119.6

35M-35M＊2 35 35 88 154.6 2-M8

LF1 LF2 S C K M M1

30 30 6 4.8 38 8-M6×20 4-M6

3030

8 4.8 42 8-M8×27 6-M638

6-M63535

40

45

40

10

11

12

4.85.35.3

48

54

61

8-M8×27

8-M10×32

8-M12×38

4-M845 6-M8

Size

SFS - 10 G- 25 M- 16 M

Type: G� Double element, � Floating shaft� iron hub

Bore diameter: d1-d2� M: Friction locking


LS

26

30

30

38

46

CADfile No.

――――――

* *1 The permissible torque of SFS-12G-30M-□M is limited by the shaft fixing mechanism of (30) and will be 380 [N・m].* *2 The permissible torque of SFS-14G-35M-35M is limited by the shaft fixing mechanism of (35) and will be 580 [N・m].

Unit [mm]

■ Dimensions SFS-□G-□M-□M

ModelW＋0.0300

T＋0.30

M2

SFS-06G4 12.2

2-M5

SFS-08GSFS-09G

5 17.3

ｄ2

□M-11C□M-16C

d4 J L

18 9 78.828 10 93.8

Boredia. ｄ1

12･14･15 11

15 16

16 5

16 5

D N1

68 40

82

94

54

58

N2

30

40

□M-16C 15･16･20･22 17.3 28 10 40 98.8 2-M62-M6□M-16C 25･28 17.3 28 10 40 112.8

LF1 LF2 S C K M M1

2525

6 4.8 30 8-M6×18 4-M5

30

30

40

6

8

4.84.8

38

42

8-M6×20

8-M8×27

40 4-M66-M640

Size

SFS - 10 G- 25 M- 16 C

Type: G� Double element,� Floating shaft� iron hub



LS

24

26

30

CADfile No.

――――

Unit [mm]

■ Dimensions SFS-□G-□M-□C

φN2

K

φN1

φD φd2

φd1

Screw bore for dismounting Ｍ2

Screw bore for dismounting Ｍ２�

M1M1

LLF2C CS SLF1 LS

Reamer bolt M

φd2

TW

J

φN2

φd4

LLF2C S SLF1

K

φN1

LS

φD φd1

Taper １/１０�


M1 Reamer bolt M

23

■ Specification

■ Dimensions

S

φD

φN

FφK

φd1

φd2

LLS LF

Reamer bolt M





[mm] Axial dis-

placement [mm]

SFH-15G 700 1.4 ±0.8 5900 21.70×10－3 7.70SFH-17G 1300 1.6 ±1.0 5100 46.60×10－3 11.00

SFH-22G 5000 2.3 ±1.2 4000 175.20×10－3 28.00SFH-26G 8000 2.9 ±1.4 3400 410.40×10－3 46.00

Price

－－

－－

SFH-19G 2000 2.0 ±1.0 4700 76.40×10－3 16.00 －SFH-21G 4000 2.1 ±1.1 4300 122.90×10－3 22.00 －

Max. permissible misalignmentAngular mis-

alignment [゜]

1 (one side)1 (one side)1 (one side)1 (one side)1 (one side)1 (one side)



750000 122

1420000 112

1700000 122

2340000 254

2970000 224

5390000 306

* Prepared bores are drilled bores.

Size

SFH - 26 G - 　 -Bore diameter: d1- d2 with standard bore processing�* Blank if bore processing is not required.

Model: SFH


* The indicated values in the moment of inertia and mass are measured with the maximum bore diameter. * The table indicates the prices based on prepared bores.

SFH-G

Unit [mm]

Model D L

SFH-15G 70 152 182

SFH-17G 80 178 218

Pilot bore Max.20

25

LF S M

45 11 12-M 8×36

55 14 12-M10×45

d1・d2

SFH-19G 30 85 190 260 65 15 12-M12×55

SFH-21G 35 90 210 290 75 15 12-M16×60

Min.22

28

32

38

N

104

118

126

130

LS

70

80

100

110

F K

5 94

6 108

10 116

8 124

CADfile No.SFH-G1SFH-G2SFH-G3SFH-G4

SFH-22G 45 48 100 225 144 335 90 115 20 -2 132 12-M16×65 SFH-G5SFH-26G 50 55 115 262 166 391 100 145 23 11 150 12-M20×80 SFH-G6

24

Ball screw shaft Servomotor shaft (1/10 Taper)

Ball screw shaft Servomotor shaft (Straight)

ETP-KETP-K

Ball screw shaft Servomotor shaft (Straight)

■ Mounting Example

■SFS-S-M-C

■SFS-S-M-M

■SFS-S

25

q Calculate torque Ta applied to the coupling based on themotor output P and coupling operating rotation speed n.

Ta[N･m]＝9550×

w Calculate corrected torque Td applied to the coupling afterdeciding the service factor K based on load conditions.

Td = Ta × K (See table below)

¡ Oscillation phenomena of servomotors If the torsional eigenfrequency of the entire feed-screwsystem is under 400 ̃ 500Hz, oscil lation may occurdepending on the gain adjustment of the servomotor. Anoscillation phenomenon of a servomotor occurs mainly bythe problem of the eigenfrequency of the entire feed-screwsystem and the electric control system.These problems can be avoided by raising the torsionaleigenfrequency of the mechanical system from the designphase or adjusting the tuning function (filter function) of theservomotor.

Contact us for unclear points concerning oscillationphenomena of servomotors.

¡ Resonance caused by stepping motorsIt is a phenomenon that occurs within a certain rotationspeed range by the pulsation frequency of the steppingmotor and the torsional eigenfrequency of the entire system.Resonance can be avoided by not applying the resonantrotation speed, or by reviewing the torsional eigenfrequencyin the design phase.

Contact us for unclear points concerning resonance ofstepping motors.

■Selection Procedure

■Feed-screw systems

q Select the coupling according to the normal operatingtorque and maximum torque of the servomotor/steppingmotor.

w In the following feed-screw system, evaluate the entireeigenfrequency: Nf from the torsional stiffness: κ of thecoupling and feed screw, the moment of inertia: J1 of thedriving side and the moment of inertia: J2 of the driven side.

■ How to evaluate the eigenfrequency offeed-screw system

P[W]

n[min－1]

Load characterConstant Fluctuations: small Fluctuations: medium Fluctuations: large

1.0 1.25 1.75 2.25Nf: Eigenfrequency of the entire feed-screw system [Hz]κ: Torsional stiffness of the coupling and feed screw [N・m/rad]J1: Moment of inertia of the driving sideJ2: Moment of inertia of the driven side

MotorFeed �screw

Bearing

TableCoupling

J1 J2κ�

Nf＝�1２π�κ（１＋１）�J1 J2

In servomotor drive, multiply the service factor K=1.2̃ 1.5 by themaximum torque of servomotor Ts.

Td = Ts ×（1.2～1.5）

e Select the size in order that the coupling permissible torqueTn becomes greater than the corrected torque Td.

Tn ≧ Td

r Depending on the bore diameters, the coupling permissibletorque may be limited. Refer to the "Specification" and"Standard bore diameter".

t Confirm if the required shaft diameter does not exceed themaximum bore diameter of the selected size.

For machines whose load torques periodically fluctuatedrastically, contact us.

■ Selection

y Keep the position where the entire length of the flange hubcontacts both shafts, and tighten all the pressure boltsdiagonally by little and little. Refer to the above figure fortightening order.

u By using a torque wrench, tighten all the pressure bolts at thespecified torque. For tightening torque, refer to theappropriate tightening torque list on page 32.

zPreassembled before deliveryThe SFS-SS/DS type is an assembly finished product for easymounting. The concentricity of the right and left bore diameters isensured by adjusting with an exclusive jig.

xMounting Procedureq Loosen the pressure bolts of coupling and confirm if thesleeve is free to move. Remove the rust, dust and oilcontent sit on the inside diameter surface of the shaft andcoupling. (Wipe off the oil content completely with a wastecloth, etc.)

w Insert the coupling into one side of the shaft. At this time, donot apply more than necessary force such as compression orpulling to the element part of the coupling.

e Insert the other side of shaft into the coupling. Do not applymore than necessary force to the element part.

r Confirm if the pressure bolts are loosened and the coupling ismovable to the axial and rotative directions. If it doesn'tmove smoothly, adjust centering of both shafts again.

t The face-to-face dimension between flange hubs (S) mustbe within the permissible error of the axial displacement in thedimension table. However, the value is allowable when theparallel offset and angular misalignment are assumed as 0(zero). Adjust to achieve them to be small as possible.

●SFS-SS/DS type

S

Pressure bolt

■Mounting and dismounting

■ Design check items

26

¡ Parallel offset (ε)Fix the dial gauge on one side of the shaft and read the run-out of the outer periphery of the other flange while rotatingthe shaft. The models (SFS-S and SS types) with one pairof elements (plate springs) do not allow parallel offset andshould be moved close to 0. For Models whose full lengthcan be set freely (SFS-□-G/SFH-□-G), use the followingformula to calculate the permissible parallel offset values

¡Angular offset (θ)Fix the dial gauge on one side of the shaft and read the run-out of the end surface near the outer periphery of the otherflange while rotating the shaft. Adjust run-out B so that (θ≦1°) can be accomplished.

¡Axial displacement (S)The face-to-face dimension between flange hubs (S) mustbe within the permissible error of the axial displacement inthe dimension table. However, the value is allowable whenthe parallel offset and angular misalignment are assumedas 0 (zero). Adjust to achieve them to be small as possible.

* The S dimension of SFS-S/SS is a dimension betweentwo flange hubs. The S dimension of SFS-DS/W/G/H is adimension between a flange and a spacer.

z SFS (except SFS-SS/ DD type) is not apreassembled product. The product isdelivered by parts.

x Mounting (In the case that the element ismounted at the last.)

q Remove the rust, dust and oil content sit on the inside surface ofthe shaft and coupling.

w Loosen the pressure bolts of the coupling and confirm if thesleeve is free to move. Insert the flange hub into the matemounting shaft.

e Keep the position where the entire length of the flange hubcontacts the shaft, and tighten all the pressure bolts diagonallyfrom each other. (The pressure bolts should be tightenedequally in several batches.)

r Insert the other flange hub into the mating shaft as theprocedure of w and e.

t The face-to-face dimension between flange hubs (S) must bewithin the permissible error of the axial displacement in thedimension table. However, the value is allowable when theparallel offset and angular misalignment are assumed as 0(zero). Adjust to achieve them to be small as possible.

y Insert the element into the space between two flange hubs and fixwith the reamer bolts. Confirm the element is not deformed. If anyforce is applied in the axial direction, or if there is a lack oflubrication between the plate spring and collar or bolt, it maycause deformation in the element. Deformation may beimproved by coating a little machine oil onto the bearing surface ofthe reamer bolts. However, do not use any oil containing anextreme-pressure additive such as molybdenum.

u Tighten the reamer bolts and pressure bolts by using a torquewrench at the specified torque. As the other mounting method, theelement can be set to the flange hub first before inserting the shaft.

●SFS-S/W/G-M-MType ●Centering method

Reamer bolt Element

Collar

hexagon nut

Pressure bolt

Flange

Sleep

ε�

LG

θ�

θ�ε�

S

D

●A list of bolt sizes and appropriate tightening torque

ε＝ tanθ × LGε: Permissible parallel offsetθ: Full length of spacerLG=LS+SLG: Total spacerS: Dimension between flange

on one side and spacer

B＝ D × tanθB: Run-outD: Flange outer diameterθ: 1°

¡Tighten the pressure bolts as the following order.

Pressurebolt

Size

M6

14

SFS-SS/DS080

SFS-S/W/G SFH090 100 120 140 Size 05 06 08 09 10 12 14 Size 15 17 19 21 22 26

Tighteningtorque[N･m]

Reamerbolt


Reamerbolt


M6

14

M6

14

M6

14

M8

34

M5

8

M6

14

M6

14

M8

34

M8

34

M10

68

M12

118

M8

34

M10

68

M12

118

M16

300

M16

300

M20

570

27

zDismounting procedureq Confirm if any torque or axial direction load does not act onthe coupling. (Torque may be applied to the coupling whena safety break control system is activated. Make sure notorque is applied to the coupling.)

w Loosen all the pressure bolts about 2mm from the bearingsurface.

In the tapered shaft fastening method that tightens thepressure bolts from the axial direction, the sleeve has a self-locking mechanism so that loosening the bolts does notrelease fastening of the flange hub and shaft. (In somecases, fastening power could be released by just looseningthe pressure bolts.) Therefore, a space for inserting adismounting screw must be considered in the couplingdesign phase. If there is no space in the axial direction,contact us for further information.

e Remove two pressure bolts loosened in w and insert theminto the two screw bores for dismounting located on thesleeve. Tighten them alternately by little and little. Fasteningof the flange hub and shaft will be released.

●Dismounting (Friction locking method)

NX

X

Pressure boltScrew bore for dismounting XーX

■SFS-SS/DS type

NX

X Pressure bolt

Screw bore for dismounting XーX

■SFS-S/W/G-M-M type

Pressure boltNominal desig x length

Recommended N Dimensions [mm]

SFS-08S/W/G（MM） M6×24 30

SFS-09S/W/G（MM） M6×24 30

SFS-10S/W/G（MM） M6×24 30

SFS-12S/W/G（MM） M8×25 31.5M6×25 31

M6×22 28

SFS-090SS/DS（KK） M6×22 28

SFS-100SS/DS（KK） M6×24 30

Model

M6×24 30

SFS-140SS/DS（KK） M8×35 40.5

SFS-14S/W/G（MM）SFS-080SS/DS（KK）

SFS-120SS/DS（KK）

●Screw space for dismounting (N)

* If there is no space toward shaft, please contact us.

¡ Check center run-out of each size by the flange outerdiameter. Adjust the chuck to achieve the followingaccuracy and finish the inner diameter.

¡ Finish as illustrated below when machining to SPANNRING.

■Centering and finishing in flange bore drilling

φd

0.7

0.02

0.02

Flange

Chuck

6.3

1.61.6

C 0.5

C 0.8

C 0.5

R 0.2

E

0.2

15°�

Details of the E portion

About 2mm About 2mm

■SFS-SS/DS type ■SFS-S/W/G-M-M type

28

■ Standard bore processing specification¡ Bore processing is available upon request.Products are stored with pilot bores.

¡ Bores are machined based on the followingspecification.

¡ Assign as described below when ordering.EExx)) SSFFSS--WW 3322HH--3388HH

¡ The positions of setscrews will not be on thesame plane.

¡ For the standardized sizes other thandescribed below, refer to the technical dataat the end of the catalog.

T1

W1

φd1

M

M

T1

W1

φd1

M

T1

W1

φd1

T2W2

φd2

M

M

T2W2

φd2

M

T2

W2

φd2

Previous JIS (2nd class) correspondence New JIS correspondence New standard motor correspondence

Bore dia.（d1-d2）

Keywayheight（T1･T2）

Nominal

boredia.



Tolerance H7, H8 ＋0.30 Tolerance H7 ＋0.3

0 Tolerance H9 ―

9 9 ― ― ― ― ― ― ―10 10 ― ― ― ― ― ― ―11 11 ― ― ― ― ― ― ―12 12 13.5 12H 12 13.8 ― ― ―

G7,F7

――――

＋0.30

――――

14 14 16.0 14H 14 16.3 14N 14 5 16.3 2-M415 15 17.0 15H 15 17.3 ― ― ― ― ―16 16 18.0 16H 16 18.3 ― ― ― ― ―17 17 19.0 17H 17 19.3 ― ― ― ― ―18 18 20.0 18H 18 20.8 ― ― ― ― ―19 19 21.0 19H 19 21.8 19N 19 6 21.8 2-M520 20 22.0 20H 20 22.8 ― ― ― ― ―22 22 25.0 22H 22 24.8 ― ― ― ― ―24 24 27.0 24H 24 27.3 24N 24 8 27.3 2-M625 25 28.0 25H 25 28.3 ― ― ― ― ―28 28 31.0 28H 28 31.3 28N 28 8 31.3 2-M630 30 33.0 30H 30 33.3 ― ― ― ― ―32 32 35.5 32H 32 35.3 ― ― ― ― ―

56 56 61.0 56H 56 60.3 ― ― ― ― ―60 60 65.0 60H 60 64.4 60N 60 18 64.4 2-M10

Nominal

boredia.

Keywaywidth

（W1･W2）

Setscrewbore（M）

E9 ―

― 2-M4― 2-M4― 2-M4

4 2-M45 2-M45 2-M45 2-M45 2-M45 2-M45 2-M45 2-M47 2-M67 2-M67 2-M67 2-M67 2-M610 2-M8

15 2-M1015 2-M10

Setscrewbore（M）―

―――

2-M42-M42-M42-M42-M42-M52-M52-M52-M52-M62-M62-M62-M62-M8

2-M102-M10

Nominal

boredia.


Keywaywidth

（W1･W2）


Setscrewbore（M）

Keywaywidth

（W1･W2）

H9

―――

4

5

5

5

5

6

6

6

6

8

8

8

8

10

16

18

35 35 10 38.5 2-M8 35H 35 10 38.3 2-M8 ― ― ― ― ―38 38 10 41.5 2-M8 38H 38 10 41.3 2-M8 38N 38 10 41.3 2-M840 40 10 43.5 2-M8 40H 40 12 43.3 2-M8 ― ― ― ― ―42 42 12 45.5 2-M8 42H 42 12 45.3 2-M8 42N 42 12 45.3 2-M845 45 12 48.5 2-M8 45H 45 14 48.8 2-M10 ― ― ― ― ―48 48 12 51.5 2-M8 48H 48 14 51.8 2-M10 48N 48 14 51.8 2-M1050 50 12 53.5 2-M8 50H 50 14 53.8 2-M10 ― ― ― ― ―55 55 15 60.0 2-M10 55H 55 16 59.3 2-M10 55N 55 16 59.3 2-M10

8 8 ― ― 2-M4 ― ― ― ― ― ― ― ― ― ―＋0.0220

＋0.0220

＋0.0220

＋0.0180

＋0.0180

＋0.0180

＋0.0180

＋0.0180

＋0.0180

＋0.0180

＋0.0210

＋0.0210

＋0.0210

＋0.0210

＋0.0210

＋0.0210

＋0.0210

＋0.0250

＋0.0250

＋0.0250

＋0.0250

＋0.0250

＋0.0250

＋0.0250

＋0.0250

＋0.0300

＋0.0300

＋0.0300

＋0.050＋0.020

＋0.050＋0.020

＋0.050＋0.020

＋0.050＋0.020

＋0.050＋0.020

＋0.050＋0.020

＋0.050＋0.020

＋0.050＋0.020

＋0.061＋0.025

＋0.061＋0.025

＋0.061＋0.025

＋0.061＋0.025

＋0.061＋0.025

＋0.061＋0.025

＋0.061＋0.025

＋0.061＋0.025

＋0.061＋0.025

＋0.075＋0.032

＋0.075＋0.032

＋0.075＋0.032

＋0.075＋0.032

＋0.075＋0.032

＋0.075＋0.032

＋0.075＋0.032

＋0.0180

＋0.0180

＋0.0180

＋0.0180

＋0.0180

＋0.0180

＋0.0210

＋0.0210

＋0.0210

＋0.0210

＋0.0210

＋0.0210

＋0.0210

＋0.0250

＋0.0250

＋0.0250

＋0.0250

＋0.0250

＋0.0250

＋0.0250

＋0.0250

＋0.0300

＋0.0300

＋0.0300

＋0.0300

＋0.0300

＋0.0300

＋0.0300

＋0.0300

＋0.0300

＋0.0300

＋0.0300

＋0.0300

＋0.0360

＋0.0360

＋0.0360

＋0.0360

＋0.0360

＋0.0360

＋0.0360

＋0.0430

＋0.0430

＋0.0430

＋0.0430

＋0.0430

＋0.0430

＋0.0430

＋0.0430

＋0.024＋0.006

＋0.028＋0.007

＋0.028＋0.007

＋0.028＋0.007

＋0.050＋0.025

＋0.050＋0.025

＋0.050＋0.025

＋0.060＋0.030

＋0.060＋0.030

＋0.0300

＋0.0300

＋0.0360

＋0.0360

＋0.0360

＋0.0430

＋0.0430

＋0.0430

＋0.0430

■Distance from the edge surface of setscrew

05Distance [mm] 7

06 08 09 10 149 10 10 12 15

* Below (11) of New JIS correspondence and below (11) of New standard motor correspondence have the same contents as Previous JIS correspondence (Second class).

1212

Size

■SFS-S

■SFS-W

■SFS-G

Unit [mm]

Documents

New SFS・SFH - Kaishin · 2015. 5. 22. · sfs-140ss 45･48 98 36. 5 ― d1･d2 82 94 144 s k m1 8384 -m 6 8 42 4-m6 12 61 6-m8 d sfs-100ss 104 35 73 30.5 10 48 4-m6