Coupling simple selection tool

We will carry out sizing the right coupling based on your usage conditions.

Target varieties
ECHT-FLEX Coupling NES Series
ECHT-FLEX Coupling NEF Series
ECHT-FLEX Coupling NER Series
ECHT-FLEX Coupling NEH Series
Power Rigid Coupling
Jaw-Flex Coupling
Nylon chain coupling standard type
Roller chain coupling
Roller chain coupling stainless steel series

Use of Content

When using TSUBAKI Power Transmission Products Information Site Coupling Simple Selection Tool (hereinafter referred to as "this tool"), please be sure to read the following usage notes and disclaimers, and use this tool only if you agree to all of the contents.
If you do not agree, please refrain from using this tool.

Precautions for use and disclaimers

1. All calculation results obtained by this tool are for reference only. We do not guarantee their contents.
For detailed Product Info, please refer to this website or the catalog.
2. We shall not be liable for any damage, disadvantage, or trouble incurred by users or third parties as a result of using this tool or its calculation results.
3. When purchasing our products, if the intended use falls under any of the following, a "Inquiry Confirmation Request form" must be prepared between you and us. Please contact us through the retailer where you purchased our products.
<Usage>
nuclear power
Amusement machines
Hanging applications (multi-story parking lots)
Personnel transport equipment (escalators, elevators, stage equipment, etc.)
Vehicles (cars, aircraft, ships, etc.)
For the food industry (direct contact with products)
military
4. The contents of this tool may be changed or deleted without notice.
5. By agreeing to the terms on this page, you will be deemed to have agreed to the terms for other selection tools on this site as well.

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Go to Selection Tool

sizing coupling

We will select the model that best meets your required specifications.

Enter the selection criteria

・Please use “.” for the decimal point and not “,” as the calculation error will occur.

Enter the shaft diameter

Small diameter side shaft diameter

Large diameter side shaft diameter

Enter the transmissible torque

Transmissible Torque

N・m

Service factor

Service factor table

Transmission torque x Service factor =

N・m

Click here to automatically calculate transmission torque from transmission capacity and rotation speed

Transmission capacity

Rotational speed

r/min

Calculate transmission torque

Enter the rotation speed you want to use

Rotational speed

r/min

Selection criteria

Select from shaft diameter

Select based on torque

Perform sizing

Clear conditions

* "Select by shaft diameter" searches for a model number that satisfies the transmission torque for the specified shaft diameter.

* "Select by torque" searches for the model number with the smallest shaft diameter that satisfies the specified torque.

PLEASE WAIT...

Selection results

Select a characteristic

Non-backlash	High torsional rigidity	Low moment of inertia	No lubrication required
Flexibility	Easy to install	Vibration absorption

Series that match the characteristics will have a blue background.
Series that somewhat match the characteristics will have a yellow background.

series		Model number Click for Product Info	Allowable Torque [N・m]		Compatible shaft diameter [mm]	Allowable max. rotation speed [r/min]	Rotational speed judgement	Application example
series		Model number Click for Product Info	Small diameter side	Large diameter side	Compatible shaft diameter [mm]	Allowable max. rotation speed [r/min]	Rotational speed judgement	Application example
ECHT-FLEX Coupling NES series	Low inertia hub ×Low inertia hub							Small servo motor Stepping motor Encoders, etc.
	Straight hub ×Straight hub
	Low inertia hub ×Straight hub
Power Rigid Coupling								Servo motor
ECHT-FLEX Coupling NEF Series	Taper lock type
	Clamp Type
	Keyway type							General-purpose motor
ECHT-FLEX Coupling NER Series
ECHT-FLEX Coupling NEH series	Standard hub type
	Adapter Hub Type
	Unit spacer type
Jaw-Flex Coupling	Sintered hub type
Jaw-Flex Coupling	Aluminum hub type
Nylon chain coupling standard type
Roller chain coupling
Roller chain coupling stainless steel series