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Flexible Couplings - Servo Flex, SFS series.

Volume Discount

Miki Pulley

Flexible Servo Flex couplings SFS series. Torsional stiffness is extremely high, super position control is possible. Since all power transmission is transmitted by friction coupling, there is no backlash.

Part Number

Configured Part Number is shown.

: 30; 45; 60

Part Number
SFS-05G
SFS-05S
SFS-06G
SFS-06S
SFS-06S 8H-8H
SFS-08G
SFS-08S
SFS-09G
SFS-09S
SFS-10S
SFS-10S 22H-28H
SFS-12S
SFS-12S 32H-32H

Minimum order quantity	Volume Discount	Days to Ship	RoHS	Allowable Misalignment	Allowable Torque Range (N•m)	Hole diameter d1 (mm)	Hole diameter d2 (mm)	O.D. (Ø)	Full Length (mm)	Max. Rotational Speed Range (r/min)	Feature	Allowable Torque (N•m)	Maximum Rotation Speed (r/min)	Allowable Angular Misalignment (deg)	Allowable Lateral Misalignment Range (mm)	Allowable Lateral Misalignment (mm)	Allowable Axial Misalignment (±) (mm)	Moment of Inertia (kg･m²)	The size of the tapered adapter (mm)	Shaft Hole Specifications	Shaft hole finished	Keyway Standard	Allowable Angular Misalignment Detail (deg)
1 Piece(s)	Available	23 Days or more	10	Angular Misalignment / Eccentricity / Axial Misalignment	10.01~20.00	-	-	56	74	10001~78000	High torsional rigidity / High Torque / High accuracy / High durability / Backlash 0 / Low Inertia Moment / Shaft hole Unfinished	20	20000	2	0.41~1.0	0.5	1.2	0.20×10^-3	-	-	-	-	1 (one side)
1 Piece(s)	Available	8 Days or more	10	Angular Misalignment / Axial Misalignment	10.01~20.00	-	-	56	45	10001~78000	High torsional rigidity / High Torque / High accuracy / High durability / Backlash 0 / Low Inertia Moment / Shaft hole Unfinished	20	25000	1	-	-	0.6	0.11×10^-3	-	-	-	-	-
1 Piece(s)	Available	23 Days or more	10	Angular Misalignment / Eccentricity / Axial Misalignment	20.01~50.00	-	-	68	86	10001~78000	High torsional rigidity / High Torque / High accuracy / High durability / Backlash 0 / Low Inertia Moment / Shaft hole Unfinished	40	16000	2	0.41~1.0	0.5	1.6	0.55×10^-3	-	-	-	-	1 (one side)
1 Piece(s)	Available	8 Days or more	10	Angular Misalignment / Axial Misalignment	20.01~50.00	-	-	68	56	10001~78000	High torsional rigidity / High Torque / High accuracy / High durability / Backlash 0 / Low Inertia Moment / Shaft hole Unfinished	40	20000	1	-	-	0.8	0.30×10^-3	-	-	-	-	-
1 Piece(s)		30 Days or more	-	Angular Misalignment / Axial Misalignment	20.01~50.00	8	8	68	56	10001~78000	High torsional rigidity / High Torque / High accuracy / High durability / Backlash 0 / Low Inertia Moment	40	20000	1	-	-	0.8	0.30×10^-3	-	Shaft hole processed products	Keyway + tap hole	d1, d2: new JIS	-
1 Piece(s)	Available	23 Days or more	10	Angular Misalignment / Eccentricity / Axial Misalignment	50.01~100.00	-	-	82	98	10001~78000	High torsional rigidity / High Torque / High accuracy / High durability / Backlash 0 / Low Inertia Moment / Shaft hole Unfinished	80	13000	2	0.41~1.0	0.5	2	1.50×10^-3	-	-	-	-	1 (one side)
1 Piece(s)	Available	8 Days or more	10	Angular Misalignment / Axial Misalignment	50.01~100.00	-	-	82	66	10001~78000	High torsional rigidity / High Torque / High accuracy / High durability / Backlash 0 / Low Inertia Moment / Shaft hole Unfinished	80	17000	1	-	-	1	0.87×10^-3	-	-	-	-	-
1 Piece(s)	Available	23 Days or more	10	Angular Misalignment / Eccentricity / Axial Misalignment	100～Less than 500	-	-	94	106	10001~78000	High torsional rigidity / High Torque / High accuracy / High durability / Backlash 0 / Low Inertia Moment / Shaft hole Unfinished	180	12000	2	0.41~1.0	0.6	2.4	2.90×10^-3	-	-	-	-	1 (one side)
1 Piece(s)	Available	23 Days or more	10	Angular Misalignment / Axial Misalignment	100～Less than 500	-	-	94	68	10001~78000	High torsional rigidity / High Torque / High accuracy / High durability / Backlash 0 / Low Inertia Moment / Shaft hole Unfinished	180	15000	1	-	-	1.2	1.60×10^-3	-	-	-	-	-
1 Piece(s)	Available	8 Days or more	10	Angular Misalignment / Axial Misalignment	100～Less than 500	-	-	104	80	10001~78000	High torsional rigidity / High Torque / High accuracy / High durability / Backlash 0 / Low Inertia Moment / Shaft hole Unfinished	250	13000	1	-	-	1.4	2.60×10^-3	-	-	-	-	-
1 Piece(s)	Available	32 Days or more	10	Angular Misalignment / Axial Misalignment	100～Less than 500	22	28	104	80	10001~78000	High torsional rigidity / High Torque / High accuracy / High durability / Backlash 0 / Low Inertia Moment	250	13000	1	-	-	1.4	2.60×10^-3	-	Shaft hole processed products	Keyway + tap hole	d1, d2: new JIS	-
1 Piece(s)	Available	23 Days or more	10	Angular Misalignment / Axial Misalignment	100～Less than 500	-	-	126	91	10001~78000	High torsional rigidity / High Torque / High accuracy / High durability / Backlash 0 / Low Inertia Moment / Shaft hole Unfinished	450	11000	1	-	-	1.6	6.50×10^-3	-	-	-	-	-
1 Piece(s)	Available	32 Days or more	10	Angular Misalignment / Axial Misalignment	100～Less than 500	32	32	126	91	10001~78000	High torsional rigidity / High Torque / High accuracy / High durability / Backlash 0 / Low Inertia Moment	450	11000	1	-	-	1.6	6.50×10^-3	-	Shaft hole processed products	Keyway + tap hole	d1, d2: new JIS	-

Basic Information

Type	Type of Flat Springs	Application	Servo Motor	Body Material	Steel
Category	Coupling body	Disc Part Material	Stainless Steel	Operating Temperature Range(℃)	-30::120

Configure

13 Part Numbers

View Part Numbers

Configure Remaining Specifications

Completed

Specification/Dimensions

Allowable Misalignment
- Angular Misalignment
- Eccentricity
- Axial Misalignment
Clear
Allowable Torque Range(N•m)
10.01~20.00

20.01~50.00

50.01~100.00

100～Less than 500

500～Less than 1000
Clear
Hole diameter d1(mm)
8

12

14

15

16

20

22

25

28

30

32

35

40
Clear
Hole diameter d2(mm)
8

12

14

15

16

20

22

25

28

30

32

35

55
Clear
O.D.(Ø)
56

68

82

94

104

126

144
Clear
Full Length(mm)
45

56

58

65.6

66

68

74

75.6

77.6

80

80.8

83.6

84

85.6

86

89.6

90.8

91

93.6

95.6

98

102

105.8

106

107.6

110

112.8

115.6

119.6

120

120.8

123.6

127

129.6

137.6

140

144

150.6

154.6

160

170.6
Clear
Feature
High torsional rigidity

High Torque

High accuracy

High durability

Backlash 0

Low Inertia Moment

Shaft hole Unfinished
Clear
Allowable Torque(N•m)
20

40

80

180

250

450

580

800
Clear
Maximum Rotation Speed(r/min)
3800

4400

5000

5200

6000

6800

7000

8000

9500

10000

11000

12000

13000

15000

16000

17000

20000

25000
Clear
Allowable Angular Misalignment(deg)
1

2
Clear
Allowable Lateral Misalignment Range(mm)
0.02~0.2

0.21~0.40

0.41~1.0
Clear
Allowable Lateral Misalignment(mm)
0.2

0.3

0.5

0.6

0.7

0.8

0.9
Clear
The size of the tapered adapter(mm)
- 11
- 16
Clear
Shaft Hole Specifications
- Shaft hole processed products
Clear
Shaft hole finished
- Keyway + tap hole
Clear
Keyway Standard
d1, d2: new JIS
Clear
type
- SFS
Clear
Max. Rotational Speed Range(r/min)
2001~4000

4001~10000

10001~78000
Clear
CAD
- 2D
Clear

Days to Ship

All

8 Days or Less

17 Days or Less

19 Days or Less

21 Days or Less

23 Days or Less

30 Days or Less

32 Days or Less
Clear

Specify Alterations

The specifications and dimensions of some parts may not be fully covered. For exact details, refer to manufacturer catalogs .

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Flexible Couplings - Servo Flex, SFS series.

Basic Information

Configure

Specification/Dimensions

Allowable Misalignment

Allowable Torque Range(N•m)

Hole diameter d1(mm)

Hole diameter d2(mm)

O.D.(Ø)

Full Length(mm)

Feature

Allowable Torque(N•m)

Maximum Rotation Speed(r/min)

Allowable Angular Misalignment(deg)

Allowable Lateral Misalignment Range(mm)

Allowable Lateral Misalignment(mm)

The size of the tapered adapter(mm)

Shaft Hole Specifications

Shaft hole finished

Keyway Standard

type

Max. Rotational Speed Range(r/min)

CAD