Slit Type Flexible Coupliing

MST Setscrew Type

Merits


Configuration & Material

*Stock screws can be replaced with stainless steel screws. Please take advantage of our stainless steel screw option.
For more information please refer to Stainless Steel Screws [PDF 256KB].

Dimensions

unit:mm
Catalog
Number		 A L W F M Wrench
Torque
(N·m)		 CAD DATA 2D CAD DATA 3D
MST-8 8 3.5 14 1.7 M2 0.3 MST8.dxf MST8
MST-12 12 5 18.5 2.5 M2.5 0.5 MST12.dxf MST12
MST-16 16 6.5 23 3 M3 0.7 MST16.dxf MST16
MST-20 20 7.5 26 3 M3 0.7 MST20.dxf MST20
MST-25 25 8.5 31 4 M4 1.7 MST25.dxf MST25
MST-32 32 12 41 6 M4 1.7 MST32.dxf MST32
MST-40 40 17 56 8.5 M5 4 MST40.dxf MST40
MST-50 50 21 71 10.5 M6 7 MST50.dxf MST50
MST-63 63 26 90 13 M8 15 MST63.dxf MST63
MSTS-8 8 3.5 14 1.7 M2 0.3 MSTS8.dxf MSTS8
MSTS-12 12 5 18.5 2.5 M2.5 0.5 MSTS12.dxf MSTS12
MSTS-16 16 6.5 23 3 M3 0.7 MSTS16.dxf MSTS16
MSTS-20 20 7.5 26 3 M3 0.7 MSTS20.dxf MSTS20
MSTS-25 25 8.5 31 4 M4 1.7 MSTS25.dxf MSTS25
MSTS-32 32 12 41 6 M4 1.7 MSTS32.dxf MSTS32
MSTS-40 40 17 56 8.5 M5 4 MSTS40.dxf MSTS40
MSTS-50 50 21 71 10.5 M6 7 MSTS50.dxf MSTS50
MSTS-63 63 26 90 13 M8 15 MSTS63.dxf MSTS63

Specifications

Catalog
Number		 Max. Bore
(mm)		 Rated
Torque
(N·m)		 Max.
Torque
(N·m)		 Max. Rotational
Frequency
(min-1)		 Moment
of Inertia*
(kg·m2)		 Static Torsional
Stiffness
(N·m/rad)		 Errors of
Eccentricity
(mm)		 Errors of
Angularity
(°)		 Errors of
Shaft End-Play
(mm)		 Mass*
(g)
MST-8 4 0.1 0.2 78000 1.2x10-8 25 0.1 2 ±0.2 1.4
MST-12 6 0.4 0.8 52000 8.3x10-8 45 0.1 2 ±0.3 3.7
MST-16 8 0.5 1 39000 3.3x10-7 80 0.1 2 ±0.4 8.1
MST-20 10 1 2 31000 9.0x10-7 170 0.1 2 ±0.4 14
MST-25 12 2 4 25000 2.6x10-6 380 0.15 2 ±0.5 27
MST-32 16 4 8 19000 9.6x10-6 500 0.15 2 ±0.5 60
MST-40 20 8 16 15000 3.2x10-5 700 0.2 2 ±0.5 130
MST-50 25 16 32 12000 1.0x10-4 1800 0.2 2 ±0.5 260
MST-63 35 32 64 10000 3.2x10-4 3100 0.2 2 ±0.5 490
MSTS-8 4 0.2 0.4 78000 3.1x10-8 50 0.1 2 ±0.2 3
MSTS-12 6 0.3 0.6 52000 2.1x10-7 64 0.1 2 ±0.3 9.3
MSTS-16 8 0.5 1 39000 8.4x10-7 85 0.1 2 ±0.3 21
MSTS-20 10 1 2 31000 2.4x10-6 250 0.1 2 ±0.3 38
MSTS-25 12 2 4 25000 6.8x10-6 330 0.15 2 ±0.4 71
MSTS-32 16 3.5 7 19000 2.6x10-5 850 0.15 2 ±0.5 160
MSTS-40 20 8 16 15000 8.7x10-5 1000 0.2 2 ±0.5 350
MSTS-50 25 15 30 12000 2.7x10-4 1400 0.2 2 ±0.5 700
MSTS-63 35 35 70 10000 8.4x10-4 1800 0.2 2 ±0.5 1300

*Adjustment of rated and maximum torque specifications for load fluctuations is not required.
For more detailed information, please refer to Selection Guidelines [PDF 171KB].
**Based on the maximum shaft bores.

Stock Bores

Catalog
Number		 RoHS Stock Bores D1·D2
MST-8 Compliant
MST-12 Compliant
MST-16 Compliant
MST-20 Compliant
MST-25 Compliant
MST-32 Compliant
MST-40 Compliant
MST-50 Compliant
MST-63 Compliant
MSTS-8 Compliant
MSTS-12 Compliant
MSTS-16 Compliant
MSTS-20 Compliant
MSTS-25 Compliant
MSTS-32 Compliant
MSTS-40 Compliant
MSTS-50 Compliant
MSTS-63 Compliant

●All products come with setscrews.
●Hubs with shaft bore diameters of φ4 or less have one setscrew.
●Recommended tolerance on shaft diameters is h6 and h7.
●Bore and keyway modifications are available on request. Please take advantage of our bore modification services.
For more information please refer to Custom Bore Modifications [PDF 495KB].
*[MSTS] stainless steel is a standard product.