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Flexible Couplings - Slotted type, MST/MSTS series.

Volume Discount

NBK

Flexible grooved type couplings, MST/MSTS series. Ideal for stepper and general purpose motors, not ideal for servo motors. Zero backlash. High torque. High torsional stiffness. Allow moderate misalignment.

Part Number

Configured Part Number is shown.

: 30; 45; 60

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Part Number
MST-8-2-2
MST-8-2-3
MST-8-2-4-BT
MST-8-3-3
MST-8-3-4-BT
MST-8-4-BT-4-BT
MST-12-3-3
MST-12-3-4
MST-12-3-5-BT
MST-12-4-4
MST-12-4-5
MST-12-4-6-BT
MST-12-4.5-5
MST-12-4.5-6-BT
MST-12-5-5
MST-12-5-6
MST-12-6-BT-6-BT
MST-12C-4-4
MST-12C-4-5
MST-12C-4.5-5
MST-12C-5-5
MST-16-4-4
MST-16-4-5
MST-16-4-6
MST-16-4-6.35-BT
MST-16-4-8-BT
MST-16-4.5-5
MST-16-4.5-7-BT
MST-16-4.5-8-BT
MST-16-5-5
MST-16-5-6
MST-16-5-6.35-BT
MST-16-5-7-BT
MST-16-5-8
MST-16-6-6
MST-16-6-6.35
MST-16-6-7
MST-16-6-8
MST-16-6.35-7-BT
MST-16-6.35-8
MST-16-6.35-BT-6.35-BT
MST-16-7-BT-7-BT
MST-16-7-BT-8-BT
MST-16-8-BT-8-BT
MST-16C-4.5-5
MST-16C-4.5-6
MST-16C-5-5
MST-16C-5-6
MST-16C-6-6
MST-20-5-5
MST-20-5-6
MST-20-5-7-BT
MST-20-5-8
MST-20-5-9-BT
MST-20-5-9.525-BT
MST-20-5-10-BT
MST-20-5-BT-6.35-BT
MST-20-6-6
MST-20-6-6.35
MST-20-6-7

Minimum order quantity	Volume Discount	Days to Ship	RoHS	Allowable Torque Range (N•m)	For Shaft Size D1 (mm)	For Shaft Size D2 (mm)	O.D. (Ø)	Full Length (mm)	Maximum Range of Rotation Number (r/min)	Body Material	Normal Torque (N•m)	Max. Rotational Speed (r/min)	Allowable Lateral Misalignment (mm)	Allowable Axial Misalignment (mm)	Moment of Inertia (kg･m²)	Construction	Additional Work	Keyway
1 Piece(s)	Available	11 Days or more	10	0.05~1.00	2	2	8	14	10001~78000	[Aluminum] A2017	0.1	78000	0.1	±0.2	1.2 × 10^-8	Set Screw Type	Standard Shaft Bore	No
1 Piece(s)	Available	8 Days or more	10	0.05~1.00	2	3	8	14	10001~78000	[Aluminum] A2017	0.1	78000	0.1	±0.2	1.2 × 10^-8	Set Screw Type	Standard Shaft Bore	No
1 Piece(s)	Available	11 Days or more	10	0.05~1.00	2	4	8	14	10001~78000	[Aluminum] A2017	0.1	78000	0.1	±0.2	1.2 × 10^-8	Set Screw Type	Additional Work Shaft Hole	No
1 Piece(s)	Available	11 Days or more	10	0.05~1.00	3	3	8	14	10001~78000	[Aluminum] A2017	0.1	78000	0.1	±0.2	1.2 × 10^-8	Set Screw Type	Standard Shaft Bore	No
1 Piece(s)	Available	9 Days or more	10	0.05~1.00	3	4	8	14	10001~78000	[Aluminum] A2017	0.1	78000	0.1	±0.2	1.2 × 10^-8	Set Screw Type	Additional Work Shaft Hole	No
1 Piece(s)	Available	11 Days or more	10	0.05~1.00	4	4	8	14	10001~78000	[Aluminum] A2017	0.1	78000	0.1	±0.2	1.2 × 10^-8	Set Screw Type	Additional Work Shaft Hole	No
1 Piece(s)	Available	11 Days or more	10	0.05~1.00	3	3	12	18.5	10001~78000	[Aluminum] A2017	0.4	52000	0.1	±0.3	8.3×10^-8	Set Screw Type	Standard Shaft Bore	No
1 Piece(s)	Available	8 Days or more	10	0.05~1.00	3	4	12	18.5	10001~78000	[Aluminum] A2017	0.4	52000	0.1	±0.3	8.3×10^-8	Set Screw Type	Standard Shaft Bore	No
1 Piece(s)	Available	11 Days or more	10	0.05~1.00	3	5	12	18.5	10001~78000	[Aluminum] A2017	0.4	52000	0.1	±0.3	8.3×10^-8	Set Screw Type	Additional Work Shaft Hole	No
1 Piece(s)	Available	11 Days or more	10	0.05~1.00	4	4	12	18.5	10001~78000	[Aluminum] A2017	0.4	52000	0.1	±0.3	8.3×10^-8	Set Screw Type	Standard Shaft Bore	No
1 Piece(s)	Available	11 Days or more	10	0.05~1.00	4	5	12	18.5	10001~78000	[Aluminum] A2017	0.4	52000	0.1	±0.3	8.3×10^-8	Set Screw Type	Standard Shaft Bore	No
1 Piece(s)	Available	11 Days or more	10	0.05~1.00	4	6	12	18.5	10001~78000	[Aluminum] A2017	0.4	52000	0.1	±0.3	8.3×10^-8	Set Screw Type	Additional Work Shaft Hole	No
1 Piece(s)	Available	11 Days or more	10	0.05~1.00	4.5	5	12	18.5	10001~78000	[Aluminum] A2017	0.4	52000	0.1	±0.3	8.3×10^-8	Set Screw Type	Standard Shaft Bore	No
1 Piece(s)	Available	11 Days or more	10	0.05~1.00	4.5	6	12	18.5	10001~78000	[Aluminum] A2017	0.4	52000	0.1	±0.3	8.3×10^-8	Set Screw Type	Additional Work Shaft Hole	No
1 Piece(s)	Available	Same day Stock	10	0.05~1.00	5	5	12	18.5	10001~78000	[Aluminum] A2017	0.4	52000	0.1	±0.3	8.3×10^-8	Set Screw Type	Standard Shaft Bore	No
1 Piece(s)	Available	8 Days or more	10	0.05~1.00	5	6	12	18.5	10001~78000	[Aluminum] A2017	0.4	52000	0.1	±0.3	8.3×10^-8	Set Screw Type	Standard Shaft Bore	No
1 Piece(s)	Available	11 Days or more	10	0.05~1.00	6	6	12	18.5	10001~78000	[Aluminum] A2017	0.4	52000	0.1	±0.3	8.3×10^-8	Set Screw Type	Additional Work Shaft Hole	No
1 Piece(s)	Available	11 Days or more	10	0.05~1.00	4	4	12	18.5	10001~78000	[Aluminum] A2017	0.4	52000	0.1	±0.3	7.8×10^-8	Clamping Type	Standard Shaft Bore	No
1 Piece(s)	Available	11 Days or more	10	0.05~1.00	4	5	12	18.5	10001~78000	[Aluminum] A2017	0.4	52000	0.1	±0.3	7.8×10^-8	Clamping Type	Standard Shaft Bore	No
1 Piece(s)	Available	11 Days or more	10	0.05~1.00	4.5	5	12	18.5	10001~78000	[Aluminum] A2017	0.4	52000	0.1	±0.3	7.8×10^-8	Clamping Type	Standard Shaft Bore	No
1 Piece(s)	Available	11 Days or more	10	0.05~1.00	5	5	12	18.5	10001~78000	[Aluminum] A2017	0.4	52000	0.1	±0.3	7.8×10^-8	Clamping Type	Standard Shaft Bore	No
1 Piece(s)	Available	11 Days or more	10	0.05~1.00	4	4	16	23	10001~78000	[Aluminum] A2017	0.5	39000	0.1	±0.4	3.3×10^-7	Set Screw Type	Standard Shaft Bore	No
1 Piece(s)	Available	11 Days or more	10	0.05~1.00	4	5	16	23	10001~78000	[Aluminum] A2017	0.5	39000	0.1	±0.4	3.3×10^-7	Set Screw Type	Standard Shaft Bore	No
1 Piece(s)	Available	8 Days or more	10	0.05~1.00	4	6	16	23	10001~78000	[Aluminum] A2017	0.5	39000	0.1	±0.4	3.3×10^-7	Set Screw Type	Standard Shaft Bore	No
1 Piece(s)	Available	9 Days or more	10	0.05~1.00	4	6.35	16	23	10001~78000	[Aluminum] A2017	0.5	39000	0.1	±0.4	3.3×10^-7	Set Screw Type	Additional Work Shaft Hole	No
1 Piece(s)	Available	11 Days or more	10	0.05~1.00	4	8	16	23	10001~78000	[Aluminum] A2017	0.5	39000	0.1	±0.4	3.3×10^-7	Set Screw Type	Additional Work Shaft Hole	No
1 Piece(s)	Available	8 Days or more	10	0.05~1.00	4.5	5	16	23	10001~78000	[Aluminum] A2017	0.5	39000	0.1	±0.4	3.3×10^-7	Set Screw Type	Standard Shaft Bore	No
1 Piece(s)	Available	9 Days or more	10	0.05~1.00	4.5	7	16	23	10001~78000	[Aluminum] A2017	0.5	39000	0.1	±0.4	3.3×10^-7	Set Screw Type	Additional Work Shaft Hole	No
1 Piece(s)	Available	11 Days or more	10	0.05~1.00	4.5	8	16	23	10001~78000	[Aluminum] A2017	0.5	39000	0.1	±0.4	3.3×10^-7	Set Screw Type	Additional Work Shaft Hole	No
1 Piece(s)	Available	11 Days or more	10	0.05~1.00	5	5	16	23	10001~78000	[Aluminum] A2017	0.5	39000	0.1	±0.4	3.3×10^-7	Set Screw Type	Standard Shaft Bore	No
1 Piece(s)	Available	11 Days or more	10	0.05~1.00	5	6	16	23	10001~78000	[Aluminum] A2017	0.5	39000	0.1	±0.4	3.3×10^-7	Set Screw Type	Standard Shaft Bore	No
1 Piece(s)	Available	9 Days or more	10	0.05~1.00	5	6.35	16	23	10001~78000	[Aluminum] A2017	0.5	39000	0.1	±0.4	3.3×10^-7	Set Screw Type	Additional Work Shaft Hole	No
1 Piece(s)	Available	11 Days or more	10	0.05~1.00	5	7	16	23	10001~78000	[Aluminum] A2017	0.5	39000	0.1	±0.4	3.3×10^-7	Set Screw Type	Additional Work Shaft Hole	No
1 Piece(s)	Available	8 Days or more	10	0.05~1.00	5	8	16	23	10001~78000	[Aluminum] A2017	0.5	39000	0.1	±0.4	3.3×10^-7	Set Screw Type	Standard Shaft Bore	No
1 Piece(s)	Available	8 Days or more	10	0.05~1.00	6	6	16	23	10001~78000	[Aluminum] A2017	0.5	39000	0.1	±0.4	3.3×10^-7	Set Screw Type	Standard Shaft Bore	No
1 Piece(s)	Available	11 Days or more	10	0.05~1.00	6	6.35	16	23	10001~78000	[Aluminum] A2017	0.5	39000	0.1	±0.4	3.3×10^-7	Set Screw Type	Standard Shaft Bore	No
1 Piece(s)	Available	11 Days or more	10	0.05~1.00	6	7	16	23	10001~78000	[Aluminum] A2017	0.5	39000	0.1	±0.4	3.3×10^-7	Set Screw Type	Standard Shaft Bore	No
1 Piece(s)	Available	11 Days or more	10	0.05~1.00	6	8	16	23	10001~78000	[Aluminum] A2017	0.5	39000	0.1	±0.4	3.3×10^-7	Set Screw Type	Standard Shaft Bore	No
1 Piece(s)	Available	9 Days or more	10	0.05~1.00	6.35	7	16	23	10001~78000	[Aluminum] A2017	0.5	39000	0.1	±0.4	3.3×10^-7	Set Screw Type	Additional Work Shaft Hole	No
1 Piece(s)	Available	11 Days or more	10	0.05~1.00	6.35	8	16	23	10001~78000	[Aluminum] A2017	0.5	39000	0.1	±0.4	3.3×10^-7	Set Screw Type	Standard Shaft Bore	No
1 Piece(s)	Available	11 Days or more	10	0.05~1.00	6.35	6.35	16	23	10001~78000	[Aluminum] A2017	0.5	39000	0.1	±0.4	3.3×10^-7	Set Screw Type	Additional Work Shaft Hole	No
1 Piece(s)	Available	11 Days or more	10	0.05~1.00	7	7	16	23	10001~78000	[Aluminum] A2017	0.5	39000	0.1	±0.4	3.3×10^-7	Set Screw Type	Additional Work Shaft Hole	No
1 Piece(s)	Available	11 Days or more	10	0.05~1.00	7	8	16	23	10001~78000	[Aluminum] A2017	0.5	39000	0.1	±0.4	3.3×10^-7	Set Screw Type	Additional Work Shaft Hole	No
1 Piece(s)	Available	11 Days or more	10	0.05~1.00	8	8	16	23	10001~78000	[Aluminum] A2017	0.5	39000	0.1	±0.4	3.3×10^-7	Set Screw Type	Additional Work Shaft Hole	No
1 Piece(s)	Available	11 Days or more	10	0.05~1.00	4.5	5	16	23	10001~78000	[Aluminum] A2017	0.5	39000	0.1	±0.4	3.4×10^-7	Clamping Type	Standard Shaft Bore	No
1 Piece(s)	Available	11 Days or more	10	0.05~1.00	4.5	6	16	23	10001~78000	[Aluminum] A2017	0.5	39000	0.1	±0.4	3.4×10^-7	Clamping Type	Standard Shaft Bore	No
1 Piece(s)	Available	10 Days or more	10	0.05~1.00	5	5	16	23	10001~78000	[Aluminum] A2017	0.5	39000	0.1	±0.4	3.4×10^-7	Clamping Type	Standard Shaft Bore	No
1 Piece(s)	Available	11 Days or more	10	0.05~1.00	5	6	16	23	10001~78000	[Aluminum] A2017	0.5	39000	0.1	±0.4	3.4×10^-7	Clamping Type	Standard Shaft Bore	No
1 Piece(s)	Available	8 Days or more	10	0.05~1.00	6	6	16	23	10001~78000	[Aluminum] A2017	0.5	39000	0.1	±0.4	3.4×10^-7	Clamping Type	Standard Shaft Bore	No
1 Piece(s)	Available	11 Days or more	10	0.05~1.00	5	5	20	26	10001~78000	[Aluminum] A2017	1	31000	0.1	±0.4	9.0×10^-7	Set Screw Type	Standard Shaft Bore	No
1 Piece(s)	Available	11 Days or more	10	0.05~1.00	5	6	20	26	10001~78000	[Aluminum] A2017	1	31000	0.1	±0.4	9.0×10^-7	Set Screw Type	Standard Shaft Bore	No
1 Piece(s)	Available	9 Days or more	10	0.05~1.00	5	7	20	26	10001~78000	[Aluminum] A2017	1	31000	0.1	±0.4	9.0×10^-7	Set Screw Type	Additional Work Shaft Hole	No
1 Piece(s)	Available	11 Days or more	10	0.05~1.00	5	8	20	26	10001~78000	[Aluminum] A2017	1	31000	0.1	±0.4	9.0×10^-7	Set Screw Type	Standard Shaft Bore	No
1 Piece(s)	Available	9 Days or more	10	0.05~1.00	5	9	20	26	10001~78000	[Aluminum] A2017	1	31000	0.1	±0.4	9.0×10^-7	Set Screw Type	Additional Work Shaft Hole	No
1 Piece(s)	Available	9 Days or more	10	0.05~1.00	5	9.525	20	26	10001~78000	[Aluminum] A2017	1	31000	0.1	±0.4	9.0×10^-7	Set Screw Type	Additional Work Shaft Hole	No
1 Piece(s)	Available	11 Days or more	10	0.05~1.00	5	10	20	26	10001~78000	[Aluminum] A2017	1	31000	0.1	±0.4	9.0×10^-7	Set Screw Type	Additional Work Shaft Hole	No
1 Piece(s)	Available	11 Days or more	10	0.05~1.00	5	6.35	20	26	10001~78000	[Aluminum] A2017	1	31000	0.1	±0.4	9.0×10^-7	Set Screw Type	Additional Work Shaft Hole	No
1 Piece(s)	Available	11 Days or more	10	0.05~1.00	6	6	20	26	10001~78000	[Aluminum] A2017	1	31000	0.1	±0.4	9.0×10^-7	Set Screw Type	Standard Shaft Bore	No
1 Piece(s)	Available	11 Days or more	10	0.05~1.00	6	6.35	20	26	10001~78000	[Aluminum] A2017	1	31000	0.1	±0.4	9.0×10^-7	Set Screw Type	Standard Shaft Bore	No
1 Piece(s)	Available	11 Days or more	10	0.05~1.00	6	7	20	26	10001~78000	[Aluminum] A2017	1	31000	0.1	±0.4	9.0×10^-7	Set Screw Type	Standard Shaft Bore	No

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Basic Information

Type	Slit type	Allowable Misalignment	Angular Misalignment / Eccentricity / Axial Misalignment	Application	Standard / Stepping Motor
Feature	High torsional rigidity / High Torque / Backlash 0	Category	Coupling body	Allowable Angular Misalignment(deg)	2
Allowable Lateral Misalignment Range(mm)	0.02~0.2

Configure

2,098 Part Numbers

View Part Numbers

Configure Remaining Specifications

Completed

Stock

- Stock Item Only
Clear

Specification/Dimensions

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
Clear
For Shaft Size D1(mm)
2

3

4

4.5

5

6

6.35

7

8

9

9.525

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35
Clear
For Shaft Size D2(mm)
2

3

4

5

6

6.35

7

8

9

9.525

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35
Clear
O.D.(Ø)
8

12

16

20

25

32

40

50

63
Clear
Full Length(mm)
14

18.5

23

26

31

41

56

71

90
Clear
Maximum Range of Rotation Number(r/min)
4001~10000

10001~78000
Clear
Body Material
- Stainless Steel
  - 303 Stainless Steel
- Aluminum
  - A2017
Clear
Normal Torque(N•m)
0.1

0.2

0.3

0.4

0.5

1

2

3.5

4

8

15

16

32

35
Clear
Max. Rotational Speed(r/min)
10000

12000

15000

19000

25000

31000

39000

52000

78000
Clear
Allowable Lateral Misalignment(mm)
0.1

0.15

0.2
Clear
Construction
- Clamping Type
- Set Screw Type
- Set screw + key type
Clear
Additional Work
- Additional Work Shaft Hole
- Standard Shaft Bore
Clear
Keyway
- Both Sides
- No
Clear
type
- MST
- MSTS
Clear
CAD
- 2D
- 3D
Clear

Days to Ship

All

Same day

8 Days or Less

9 Days or Less

10 Days or Less

11 Days or Less

13 Days or Less

35 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 - Slotted type, MST/MSTS series.

Basic Information

Configure

Stock

Specification/Dimensions

Allowable Torque Range(N•m)

For Shaft Size D1(mm)

For Shaft Size D2(mm)

O.D.(Ø)

Full Length(mm)

Maximum Range of Rotation Number(r/min)

Body Material

Normal Torque(N•m)

Max. Rotational Speed(r/min)

Allowable Lateral Misalignment(mm)

Construction

Additional Work

Keyway

type

CAD