Slit Type

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Name	MSX	MSX-C	MST	MST-C	MSTS	MSTS-C	MST-K	MSTS-K	MWS
Feature	Single-Piece Construction Zero Backlash High Torsional Stiffness	Single-Piece Construction Zero Backlash High Torsional Stiffness	Single-Piece Construction Zero Backlash	Single-Piece Construction Zero Backlash	Single-Piece Construction Zero Backlash High Torsional Stiffness	Single-Piece Construction Zero Backlash High Torsional Stiffness	Single-Piece Construction Zero Backlash	Single-Piece Construction Zero Backlash	Single-Piece Construction Zero Backlash Low Inertia
Size	Standard	Standard	Standard	Standard	Standard	Standard	Standard	Standard	Short
Hub Material	Aluminum Alloy	Aluminum Alloy	Aluminum Alloy	Aluminum Alloy	Stainless Steel	Stainless Steel	Aluminum Alloy	Stainless Steel	Aluminum Alloy
Shaft Fastening Method	Set Screw	Clamping	Set Screw	Clamping	Set Screw	Clamping	Set Screw + Key	Set Screw + Key	Set Screw
Diameter	φ16 ～ φ44	φ16 ～ φ44	φ8 ～ φ63	φ12 ～ φ63	φ8 ～ φ63	φ12 ～ φ63	φ32 ～ φ63	φ32 ～ φ63	φ8 ～ φ32
Torque	0.5N・m ～ 9N・m	0.5N・m ～ 9N・m	0.1N・m ～ 32N・m	0.4N・m ～ 32N・m	0.2N・m ～ 35N・m	0.3N・m ～ 35N・m	4N・m ～ 32N・m	3.5N・m ～ 35N・m	0.1N・m ～ 4N・m

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Name	MWSS	MWS-C	MWSS-C	XSTS-C	XWSS-C	MSXP-C	MSXP-C-W-SP
Feature	Single-Piece Construction Zero Backlash High Torque	Single-Piece Construction Zero Backlash Low Inertia	Single-Piece Construction Zero Backlash High Torque	Clean Low Particle Chemical Resistance	Clean Low Particle Chemical Resistance	PEEK Low Outgas	Coupling for Vacuum Variable Capacitor
Size	Short	Short	Short	Standard	Short	Standard	Long
Hub Material	Stainless Steel	Aluminum Alloy	Stainless Steel	SUS316L	SUS316L	PEEK	PEEK
Shaft Fastening Method	Set Screw	Clamping	Clamping	Clamping	Clamping	Clamping	Clamping
Diameter	φ8 ～ φ32	φ12 ～ φ32	φ12 ～ φ32	φ25 ～ φ63	φ25 ～ φ32	φ25 ～ φ36	φ25
Torque	0.2N・m ～ 3.5N・m	0.4N・m ～ 4N・m	0.3N・m ～ 3.5N・m	2N・m ～ 35N・m	2N・m ～ 3.5N・m	0.7N・m ～ 1.5N・m	1.3N・m

Related products

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Number	MPF	MDR
Name	Photo Sensor Flange	Damper Rolls
Feature	Photo Sensor Flange	Damper for Stepping Motor

Other Couplings

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Name	High Gain Type	Disk Type	Jaw Type	Slit Type	Oldham Type	Cross Joint Type	Rigid Type	Bellows Type	Serration Type

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Name	Flexus

Latest

Rotation shaft vibration must be suppressed 【Productivity increase】

Introducing case studies using couplings that control vibrations to improve productivity.

Shaft radial load must be suppressed 【Automation / robots / motorization】

Introducing case studies using couplings with excellent constant velocity and eccentric reaction force to suppress radial load on the shaft.

Machining marks must be prevented 【Energy-saving / reduced work-hours】

Introducing case studies using couplings that reduce vibrations to prevent machining marks and reduce work hours.

Servomotor hunting must be suppressed 【Productivity increase】

Introducing case studies using couplings with excellent damping performance to improve productivity.

Helpful Resources

NEW！Wireless Positioning Units

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The Wireless Positioning Unit dramatically improves setup work

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Designs and Examples of What NBK Can Create

Custom made

Special specifications

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Rotation shaft vibration must be suppressed 【Productivity increase】

Small screws are required 【Compact / lightweight】

Screws with high strength are required even in environments where steel cannot be used 【Compact / lightweight】

Shaft radial load must be suppressed 【Automation / robots / motorization】

Machining marks must be prevented 【Energy-saving / reduced work-hours】

Vol. 12 Back to Basics Series! Screw Reference Dimensions

Vol. 11 Back to Basics Series! Introducing Various Types of Screws

Vol.4 What are washers used for?

Vol.2 Explaining the Vocabulary of Screws

Titanium Property

Hints for correctly using NBK products: Retractable revolving grip

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Hints for correctly using NBK products: Scale Plate (Half scale)

Only takes two minutes to understand! Wireless Positioning Unit (EPU-100・ EPC-100) Connection/Operating Method

Choosing the most suitable coupling

Choosing the most suitable coupling

Procedure of Selection

Procedure of Selection (Actuator)

Procedure of Selection

How to Check the Screw Tightening Torque

How to Adjust the Alignment

Shaft Insertion Amount When Assembling the Coupling and Single-axis Actuator

Mounting and Maintenance

Rotation shaft vibration must be suppressed 【Productivity increase】

Servomotor hunting must be suppressed 【Productivity increase】

Screws in places unreachable by hand need to be tightened 【Workability / maintenance】

Stainless steel screws must be prevented from galling / seizing 【Workability / maintenance】

Removing stripped screws 【Workability / maintenance】

Hints for correctly using NBK products: Retractable revolving grip

Countermeasures for screw loosening are required 【Safety / precautionary measures】

Theft / tampering countermeasures are required 【Safety / precautionary measures】

Improvement points for FA Devices【Drive Design】

Disturbances / vibrations must be suppressed 【Safety / precautionary measures】

Machining marks must be prevented 【Energy-saving / reduced work-hours】

Screws must be protected from chemicals 【Energy-saving / reduced work-hours】

Improvement points for FA Devices【Control Design】

Solving common issues with Machine Tools（Machining Center）

Improvement points for FA Devices【Unit Design】

Improvement points for FA Devices【Drive Design】

Improvement points for FA Devices【Control Design】

Solving common issues with Medical Equipment（CT scan / MRI）

Solving common issues with Machine Tools（Machining Center）

Solving common issues with Medical Equipment（Biochemical Analyzer）

Hints for correctly using NBK products: Retractable revolving grip

Small screws are required 【Compact / lightweight】

Screws with high strength are required even in environments where steel cannot be used 【Compact / lightweight】

350% instantaneous maximum torque needs to be handled 【Compact / lightweight】

Improvement points for FA Devices【Control Design】

NBK SPECIAL SCREWS

Designs and Examples of What NBK Can Create

Custom made

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Improved reproducibility of the main column / reference position is required 【High rigidity / high accuracy】

Solving common issues with Machine Tools（Machining Center）

Stable speed control of the raising / lowering shaft is required 【High rigidity / high accuracy】

Solving common issues with Semiconductor Manufacturing Equipment（Post-Process）

Improvement points for FA Devices【Unit Design】

Hints for correctly using NBK products: Retractable revolving grip

Rotation shaft vibration must be suppressed 【Productivity increase】

Small screws are required 【Compact / lightweight】

Screws with high strength are required even in environments where steel cannot be used 【Compact / lightweight】

Shaft radial load must be suppressed 【Automation / robots / motorization】

Hints for correctly using NBK products: Retractable revolving grip

Rotation shaft vibration must be suppressed 【Productivity increase】

Small screws are required 【Compact / lightweight】

Screws with high strength are required even in environments where steel cannot be used 【Compact / lightweight】

Shaft radial load must be suppressed 【Automation / robots / motorization】

Hints for correctly using NBK products: Retractable revolving grip

Vol.4　What are washers used for?

Vol.2　Explaining the Vocabulary of Screws

Vol. 9　Sudden Bolt "Delayed Fracture"