Slit Type Flexible Coupling

MSX Setscrew Type

Merits

High Torsional Stiffness, High Response
Zero Backlash

One-piece metallic spring coupling
Extremely high torsional stiffness, low inertia and excellent response
Manufactured from extra super duralumin (A7075) - the highest strength aluminum alloy
Absorption of parallel, angular misalignments and shaft endplay by spring action
Identical clockwise and counter-clockwise rotational characteristics
Finished products featuring two different end bore diameters available in stock

Application

Servomotor	A
Stepping Motor	A
General-purpose Motor	-
Encoder	-

Features

Zero Backlash	A
High Torsional Stiffness	A
High Torque	B
Absorption of Misalignment	-
Vibration Absorption	-
Electrical Insulation	-
Corrosion Resistant ( All Stainless Steel)	-

A : Excellent B : Very Good

For FPD equipment, semiconductor equipment, or equipment to be used in environments requiring clean, heat resistant, or chemical resistant components, take a look at our MSXP coupling constructed of PEEK®* .
*PEEK® is a registered trademark of Victrex plc.
Eccentric Reaction Force / Thrust Reaction Force / Changes in Static Torsional Stiffness Caused by Temperature / Static Torsional Stiffness Comparisons [PDF 130KB]

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)
MSX-16	16	6	17.4	3	M3	0.7	MSX16.dxf	download
MSX-19	19	6.8	20	3.4	M3	0.7	MSX19.dxf	download
MSX-24	24	8.5	25	4.25	M4	1.7	MSX24.dxf	download
MSX-29	29	10.2	30	5.1	M4	1.7	MSX29.dxf	download
MSX-34	34	12	35	6	M5	4	MSX34.dxf	download
MSX-39	39	13.5	40	6.75	M5	4	MSX39.dxf	-
MSX-44	44	15.5	45	7.75	M6	7	MSX44.dxf	-

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)
MSX-16	8	0.5	1	39000	2.8x10^-7	200	0.05	0.5	±0.1	7
MSX-19	10	1	2	33000	6.2x10^-7	270	0.05	0.5	±0.1	10
MSX-24	12	1.5	3	26000	2.0x10^-6	790	0.05	0.5	±0.1	22
MSX-29	14	2	4	21000	5.2x10^-6	1400	0.05	0.5	±0.1	40
MSX-34	18	3	6	18000	1.1x10^-5	2200	0.05	0.5	±0.1	64
MSX-39	20	6	12	16000	2.9x10^-5	4100	0.05	0.5	±0.1	90
MSX-44	22	9	18	14000	5.5x10^-5	5100	0.05	0.5	±0.1	133

*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
MSX-16	Compliant
MSX-19	Compliant
MSX-24	Compliant
MSX-29	Compliant
MSX-34	Compliant
MSX-39	Compliant
MSX-44	Compliant

●All products come with set screws (MSX).
●Tolerance on shaft bores of setscrew type coupling is H8.
●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].