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Flexible Couplings - Servo Flex.

Volume Discount

Miki Pulley

Uses lightweight, high-strength aluminum alloy for clamp hub. Extremely high torsional rigidity supporting high responsiveness.

Part Number

Configured Part Number is shown.

Product TOP

: 30; 45; 60

Part Number
SFC-050DA2-8B-8B
SFC-050DA2-8B-9B
SFC-050DA2-8B-9.525B
SFC-050DA2-8B-10B
SFC-050DA2-8B-11B
SFC-050DA2-8B-11BC
SFC-050DA2-8B-12B
SFC-050DA2-8B-14B
SFC-050DA2-8B-14BC
SFC-050DA2-8B-15B
SFC-050DA2-8B-16B
SFC-050DA2-8B-16BC
SFC-050DA2-8B-17B
SFC-050DA2-8B-18B
SFC-050DA2-8B-19B
SFC-050DA2-8B-20B
SFC-050DA2-8B-22B
SFC-050DA2-8B-24B
SFC-050DA2-8B-25B
SFC-050DA2-8B-28B
SFC-050DA2-8B-30B
SFC-050DA2-9B-9B
SFC-050DA2-9B-9.525B
SFC-050DA2-9B-10B
SFC-050DA2-9B-11B
SFC-050DA2-9B-11BC
SFC-050DA2-9B-12B
SFC-050DA2-9B-14B
SFC-050DA2-9B-14BC
SFC-050DA2-9B-15B
SFC-050DA2-9B-16B
SFC-050DA2-9B-16BC
SFC-050DA2-9B-17B
SFC-050DA2-9B-18B
SFC-050DA2-9B-19B
SFC-050DA2-9B-20B
SFC-050DA2-9B-22B
SFC-050DA2-9B-24B
SFC-050DA2-9B-25B
SFC-050DA2-9B-28B
SFC-050DA2-9B-30B
SFC-050SA2-8B-8B
SFC-050SA2-8B-9B
SFC-050SA2-8B-9.525B
SFC-050SA2-8B-10B
SFC-050SA2-8B-11B
SFC-050SA2-8B-11BC
SFC-050SA2-8B-12B
SFC-050SA2-8B-14B
SFC-050SA2-8B-14BC
SFC-050SA2-8B-15B
SFC-050SA2-8B-16B
SFC-050SA2-8B-16BC
SFC-050SA2-8B-17B
SFC-050SA2-8B-18B
SFC-050SA2-8B-19B
SFC-050SA2-8B-20B
SFC-050SA2-8B-22B
SFC-050SA2-8B-24B
SFC-050SA2-8B-25B

Minimum order quantity	Volume Discount	Days to Ship	RoHS	Allowable Torque Range (N•m)	Hole diameter d1 (mm)	Hole diameter d2 (mm)	O.D. (Ø)	Full Length (mm)	Allowable Torque (N•m)	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)	Keyway Standard	Disc Specifications	Allowable Angular Misalignment Detail (deg)
1 Piece(s)	Available	16 Days or more	10	10.01~20.00	8	8	56	59.8	18	2	0.21~0.40	0.28	0.4	98.34×10^-6	-	-	Double	1 (one side)
1 Piece(s)	Available	16 Days or more	10	10.01~20.00	8	9	56	59.8	18	2	0.21~0.40	0.28	0.4	98.34×10^-6	-	-	Double	1 (one side)
1 Piece(s)	Available	16 Days or more	10	10.01~20.00	8	9.525	56	59.8	18	2	0.21~0.40	0.28	0.4	98.34×10^-6	-	-	Double	1 (one side)
1 Piece(s)	Available	16 Days or more	10	10.01~20.00	8	10	56	59.8	18	2	0.21~0.40	0.28	0.4	98.34×10^-6	-	-	Double	1 (one side)
1 Piece(s)	Available	16 Days or more	10	10.01~20.00	8	11	56	59.8	18	2	0.21~0.40	0.28	0.4	98.34×10^-6	-	-	Double	1 (one side)
1 Piece(s)	Available	20 Days or more	10	10.01~20.00	8	-	56	64.8	18	2	0.21~0.40	0.28	0.8	125.5×10^-6	11	-	Double	1 (one side)
1 Piece(s)	Available	16 Days or more	10	10.01~20.00	8	12	56	59.8	18	2	0.21~0.40	0.28	0.4	98.34×10^-6	-	-	Double	1 (one side)
1 Piece(s)	Available	16 Days or more	10	10.01~20.00	8	14	56	59.8	18	2	0.21~0.40	0.28	0.4	98.34×10^-6	-	-	Double	1 (one side)
1 Piece(s)	Available	20 Days or more	10	10.01~20.00	8	-	56	69.8	18	2	0.21~0.40	0.28	0.8	131.1×10^-6	14	-	Double	1 (one side)
1 Piece(s)	Available	16 Days or more	10	10.01~20.00	8	15	56	59.8	18	2	0.21~0.40	0.28	0.4	98.34×10^-6	-	-	Double	1 (one side)
1 Piece(s)	Available	16 Days or more	10	10.01~20.00	8	16	56	59.8	18	2	0.21~0.40	0.28	0.4	98.34×10^-6	-	-	Double	1 (one side)
1 Piece(s)	Available	20 Days or more	10	10.01~20.00	8	-	56	79.8	18	2	0.21~0.40	0.28	0.8	138.1 × 10^-6	16	-	Double	1 (one side)
1 Piece(s)	Available	16 Days or more	10	10.01~20.00	8	17	56	59.8	18	2	0.21~0.40	0.28	0.4	98.34×10^-6	-	-	Double	1 (one side)
1 Piece(s)	Available	16 Days or more	10	10.01~20.00	8	18	56	59.8	18	2	0.21~0.40	0.28	0.4	98.34×10^-6	-	-	Double	1 (one side)
1 Piece(s)	Available	16 Days or more	10	10.01~20.00	8	19	56	59.8	18	2	0.21~0.40	0.28	0.4	98.34×10^-6	-	-	Double	1 (one side)
1 Piece(s)	Available	16 Days or more	10	10.01~20.00	8	20	56	59.8	18	2	0.21~0.40	0.28	0.4	118.9×10^-6	-	-	Double	1 (one side)
1 Piece(s)	Available	16 Days or more	10	10.01~20.00	8	22	56	59.8	18	2	0.21~0.40	0.28	0.4	118.9×10^-6	-	-	Double	1 (one side)
1 Piece(s)	Available	16 Days or more	10	10.01~20.00	8	24	56	59.8	18	2	0.21~0.40	0.28	0.4	118.9×10^-6	-	-	Double	1 (one side)
1 Piece(s)	Available	16 Days or more	10	10.01~20.00	8	25	56	59.8	18	2	0.21~0.40	0.28	0.4	118.9×10^-6	-	-	Double	1 (one side)
1 Piece(s)	Available	16 Days or more	10	10.01~20.00	8	28	56	59.8	18	2	0.21~0.40	0.28	0.4	118.9×10^-6	-	-	Double	1 (one side)
1 Piece(s)	Available	16 Days or more	10	10.01~20.00	8	30	56	59.8	18	2	0.21~0.40	0.28	0.4	118.9×10^-6	-	-	Double	1 (one side)
1 Piece(s)	Available	16 Days or more	10	10.01~20.00	9	9	56	59.8	20	2	0.21~0.40	0.28	0.4	98.34×10^-6	-	-	Double	1 (one side)
1 Piece(s)	Available	16 Days or more	10	10.01~20.00	9	9.525	56	59.8	20	2	0.21~0.40	0.28	0.4	98.34×10^-6	-	-	Double	1 (one side)
1 Piece(s)	Available	16 Days or more	10	10.01~20.00	9	10	56	59.8	20	2	0.21~0.40	0.28	0.4	98.34×10^-6	-	-	Double	1 (one side)
1 Piece(s)	Available	16 Days or more	10	10.01~20.00	9	11	56	59.8	20	2	0.21~0.40	0.28	0.4	98.34×10^-6	-	-	Double	1 (one side)
1 Piece(s)	Available	20 Days or more	10	10.01~20.00	9	-	56	64.8	20	2	0.21~0.40	0.28	0.8	125.5×10^-6	11	-	Double	1 (one side)
1 Piece(s)	Available	16 Days or more	10	10.01~20.00	9	12	56	59.8	20	2	0.21~0.40	0.28	0.4	98.34×10^-6	-	-	Double	1 (one side)
1 Piece(s)	Available	16 Days or more	10	10.01~20.00	9	14	56	59.8	20	2	0.21~0.40	0.28	0.4	98.34×10^-6	-	-	Double	1 (one side)
1 Piece(s)	Available	20 Days or more	10	10.01~20.00	9	-	56	69.8	20	2	0.21~0.40	0.28	0.8	131.1×10^-6	14	-	Double	1 (one side)
1 Piece(s)	Available	16 Days or more	10	10.01~20.00	9	15	56	59.8	20	2	0.21~0.40	0.28	0.4	98.34×10^-6	-	-	Double	1 (one side)
1 Piece(s)	Available	16 Days or more	10	10.01~20.00	9	16	56	59.8	20	2	0.21~0.40	0.28	0.4	98.34×10^-6	-	-	Double	1 (one side)
1 Piece(s)	Available	20 Days or more	10	10.01~20.00	9	-	56	79.8	20	2	0.21~0.40	0.28	0.8	138.1 × 10^-6	16	-	Double	1 (one side)
1 Piece(s)	Available	16 Days or more	10	10.01~20.00	9	17	56	59.8	20	2	0.21~0.40	0.28	0.4	98.34×10^-6	-	-	Double	1 (one side)
1 Piece(s)	Available	16 Days or more	10	10.01~20.00	9	18	56	59.8	20	2	0.21~0.40	0.28	0.4	98.34×10^-6	-	-	Double	1 (one side)
1 Piece(s)	Available	16 Days or more	10	10.01~20.00	9	19	56	59.8	20	2	0.21~0.40	0.28	0.4	98.34×10^-6	-	-	Double	1 (one side)
1 Piece(s)	Available	16 Days or more	10	10.01~20.00	9	20	56	59.8	20	2	0.21~0.40	0.28	0.4	118.9×10^-6	-	-	Double	1 (one side)
1 Piece(s)	Available	16 Days or more	10	10.01~20.00	9	22	56	59.8	20	2	0.21~0.40	0.28	0.4	118.9×10^-6	-	-	Double	1 (one side)
1 Piece(s)	Available	16 Days or more	10	10.01~20.00	9	24	56	59.8	20	2	0.21~0.40	0.28	0.4	118.9×10^-6	-	-	Double	1 (one side)
1 Piece(s)	Available	16 Days or more	10	10.01~20.00	9	25	56	59.8	20	2	0.21~0.40	0.28	0.4	118.9×10^-6	-	-	Double	1 (one side)
1 Piece(s)	Available	16 Days or more	10	10.01~20.00	9	28	56	59.8	20	2	0.21~0.40	0.28	0.4	118.9×10^-6	-	-	Double	1 (one side)
1 Piece(s)	Available	16 Days or more	10	10.01~20.00	9	30	56	59.8	20	2	0.21~0.40	0.28	0.4	118.9×10^-6	-	-	Double	1 (one side)
1 Piece(s)	Available	16 Days or more	10	10.01~20.00	8	8	56	43.4	18	1	0.02~0.2	0.02	0.4	55.71×10^-6	-	-	Single	-
1 Piece(s)	Available	16 Days or more	10	10.01~20.00	8	9	56	43.4	18	1	0.02~0.2	0.02	0.4	55.71×10^-6	-	-	Single	-
1 Piece(s)	Available	16 Days or more	10	10.01~20.00	8	9.525	56	43.4	18	1	0.02~0.2	0.02	0.4	55.71×10^-6	-	-	Single	-
1 Piece(s)	Available	16 Days or more	10	10.01~20.00	8	10	56	43.4	18	1	0.02~0.2	0.02	0.4	55.71×10^-6	-	-	Single	-
1 Piece(s)	Available	16 Days or more	10	10.01~20.00	8	11	56	43.4	18	1	0.02~0.2	0.02	0.4	55.71×10^-6	-	-	Single	-
1 Piece(s)	Available	20 Days or more	10	10.01~20.00	8	-	56	48.4	18	1	0.02~0.2	0.02	0.8	82.91×10^-6	11	-	Single	-
1 Piece(s)	Available	16 Days or more	10	10.01~20.00	8	12	56	43.4	18	1	0.02~0.2	0.02	0.4	55.71×10^-6	-	-	Single	-
1 Piece(s)	Available	16 Days or more	10	10.01~20.00	8	14	56	43.4	18	1	0.02~0.2	0.02	0.4	55.71×10^-6	-	-	Single	-
1 Piece(s)	Available	20 Days or more	10	10.01~20.00	8	-	56	53.4	18	1	0.02~0.2	0.02	0.8	88.72 x 10^-6	14	-	Single	-
1 Piece(s)	Available	16 Days or more	10	10.01~20.00	8	15	56	43.4	18	1	0.02~0.2	0.02	0.4	55.71×10^-6	-	-	Single	-
1 Piece(s)	Available	16 Days or more	10	10.01~20.00	8	16	56	43.4	18	1	0.02~0.2	0.02	0.4	55.71×10^-6	-	-	Single	-
1 Piece(s)	Available	20 Days or more	10	10.01~20.00	8	-	56	63.4	18	1	0.02~0.2	0.02	0.8	95.44×10^-6	16	-	Single	-
1 Piece(s)	Available	16 Days or more	10	10.01~20.00	8	17	56	43.4	18	1	0.02~0.2	0.02	0.4	55.71×10^-6	-	-	Single	-
1 Piece(s)	Available	16 Days or more	10	10.01~20.00	8	18	56	43.4	18	1	0.02~0.2	0.02	0.4	55.71×10^-6	-	-	Single	-
1 Piece(s)	Available	16 Days or more	10	10.01~20.00	8	19	56	43.4	18	1	0.02~0.2	0.02	0.4	55.71×10^-6	-	-	Single	-
1 Piece(s)	Available	16 Days or more	10	10.01~20.00	8	20	56	43.4	18	1	0.02~0.2	0.02	0.4	76.26×10^-6	-	-	Single	-
1 Piece(s)	Available	16 Days or more	10	10.01~20.00	8	22	56	43.4	18	1	0.02~0.2	0.02	0.4	76.26×10^-6	-	-	Single	-
1 Piece(s)	Available	16 Days or more	10	10.01~20.00	8	24	56	43.4	18	1	0.02~0.2	0.02	0.4	76.26×10^-6	-	-	Single	-
1 Piece(s)	Available	8 Days or more	10	10.01~20.00	8	25	56	43.4	18	1	0.02~0.2	0.02	0.4	76.26×10^-6	-	-	Single	-

Basic Information

Type	Type of Flat Springs	Allowable Misalignment	Angular Misalignment / Eccentricity / Axial Misalignment	Application	Servo Motor / Stepping Motor / Encoder
Max. Rotational Speed Range(r/min)	4001~10000	Feature	High torsional rigidity / High Torque / High accuracy / High durability / Backlash 0 / Low Inertia Moment / Small	Body Material	Aluminum
Category	Coupling body	Maximum Rotation Speed(r/min)	10000	Disc Part Material	Stainless Steel
Operating Temperature Range(℃)	-30::100

Configure

82 Part Numbers

View Part Numbers

Configure Remaining Specifications

Completed

Specification/Dimensions

Hole diameter d1(mm)
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
Clear
Hole diameter d2(mm)
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
Clear
O.D.(Ø)
12

16

19

26

29

34

39

44

56

63

68

82

94

104
Clear
Full Length(mm)
15.7

16.7

19.35

23.15

23.2

23.4

25.9

27.3

32.3

32.8

34

37.8

43.4

48

48.4

50.6

53.4

53.6

56.6

59.8

63.4

64.8

66.6

68

68.3

68.7

69.6

69.8

73.3

74.4

79.8

84.7

89.3

98

98.6

101.6
Clear
Allowable Torque(N•m)
0.25

0.6

1

2

2.1

2.8

3.4

4

5

6.6

8

9

10

18

20

22

25

40

50

51

60

100

180

226

250
Clear
Allowable Angular Misalignment(deg)
0.5

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)
0.02

0.03

0.05

0.11

0.15

0.18

0.24

0.28

0.31

0.34

0.52

0.55
Clear
The size of the tapered adapter(mm)
- 11
- 14
- 16
Clear
Keyway Standard
H9 grade with d1 keyway

Js9 grade with d1 keyway

H9 grade with d1 keyway+H9 grade with d2 keyway

H9 grade with d1 keyway+Js9 grade with d2 keyway

Js9 grade with d1 keyway+H9 grade with d2 keyway

Js9 grade with d1 keyway+Js9 grade with d2 keyway

H9 grade with d2 keyway

Js9 grade with d2 keyway

-
Clear
Disc Specifications
- Double
- Single
Clear
type
- SFC-DA2
- SFC-DA2-BC
- SFC-SA2
- SFC-SA2-BC
Clear
Allowable Torque Range(N•m)
0.05~1.00

1.01~3.00

3.01~5.00

5.01~10.00

10.01~20.00

20.01~50.00

50.01~100.00

100～Less than 500
Clear
CAD
- 2D
- 3D
Clear

Days to Ship

All

Same day

8 Days or Less

9 Days or Less

11 Days or Less

13 Days or Less

16 Days or Less

19 Days or Less

20 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.

Basic Information

Configure

Specification/Dimensions

Hole diameter d1(mm)

Hole diameter d2(mm)

O.D.(Ø)

Full Length(mm)

Allowable Torque(N•m)

Allowable Angular Misalignment(deg)

Allowable Lateral Misalignment Range(mm)

Allowable Lateral Misalignment(mm)

The size of the tapered adapter(mm)

Keyway Standard

Disc Specifications

type

Allowable Torque Range(N•m)

CAD