Shaft Coupling

Coupling is a core component that transmits power and motion
from the driving shaft to the driven part while absorbing misalignment
and any possible factors that could reduce efficiency of machines
(e.g. vibration, noise, electric current, etc.)

Shaft Coupling

Model Type Backlash
free		 High
Torque		 Torsional
Stiffness		 Vibration
Absorption		 Misalign
-ment Absorption		 Oil
resistant		 Electric
Insulation		 Applicable Motors Hub
Material
Servo Stepping Encoder General
SHR
　		 High performance Rubber ☆ ☆ ○ ☆ ○ △ ☆ ☆ ○ High Strength Aluminum Alloy
SHR series is excellent for vibration absorption and
helps to enhance efficiency of application allowing higher gain value on the servo motors.
SD　 Disk ☆ ○ ☆ ○ ○ ○ ○ ○ High Strength Aluminum Alloy,
Stainless steel
SD series is excellent for absorbing misalignment by plate springs and is widely used on servo/step motors.
SAD　 Advanced Disk ☆ ☆ ☆ ○ ○ ☆ ☆ ○ ○ High Strength Aluminum Alloy
SAD Series is more stiff and durable compared to similar sized general disk couplings (SD series)
with the advanced structure in the plate springs. We provide SAD series in small/compact sizes.
SHD　 High
Torque
Disk		 ☆ ☆ ☆ ○ ○ ○ ○ ○ Ultra High Strength Aluminum Alloy,
Steel (OD≥126)
SHD Series is designed to transmit high torque by adopting harder material and
the advanced structure in the plate springs. We provide SHD series in mid/large sizes.
SCD　 Concentricity Disk Coupling ☆ ☆ ☆ △ ○ ☆ Steel
SCD Series is designed to be well-concentric with higher torsional stiffness by processing inner and outer diameter simultaneously, which enables users to install the coupling in a more precise way.
SJC　 Jaw ○ ☆ ○ ○ △ △ ○ ○ ○ △ ☆ High Strength Aluminum Alloy,
Steel (OD≥120)
SJC series is the most excellent coupling for transmitting high torque and is durable for vibration/impact.
SOH　 Oldham △ ○ △ ○ ☆ △ ○ △ △ ○ ☆ High Strength Aluminum Alloy,
Stainless steel
SOH series is excellent for absorption of parallel misalignment and
enables reaction force on the shaft to be reduced. It is simple for self-maintenance.
SRB　 Radial Beam ☆ △ ○ ○ ○ ○ ○ ○ Ultra High Strength Aluminum Alloy,
Stainless steel
SRB series is good for both angular/parallel misalignment absorption however it is relatively less-durable.
SRG　 Rigid ☆ ○ ☆ ○ ○ High Strength Aluminum Alloy,
Stainless steel,
Steel
SRG series is excellent to be used at highly-precise applications,
however there is no ability to absorb misalignment on this product.
SCJ　 Cross Joint △ ○ △ ☆ △ △ △ High Strength Aluminum Alloy
SCJ series is excellent for absorbing both angular/parallel misalignment, and it minimizes reaction force on the shaft.
SFC　 Urethane
Flexible		 ○ ☆ ○ △ ○ Steel
SFC series is flexible with Urethane material and is excellent for absorbing misalignment, however it is relatively less-durable.

※ Please refer to the meaning of symbols as below. ☆: excellent / ○: good / △: medium / blank: N/A