Page top


Rotary Encoders Accessories


Couplings, Flanges and Servo Mounting Brackets


Comparison of Specifications for 6-mm Shafts

Material Resin (standard type) Metal (aluminum, helical)
Machine specification
Eccentricity (mm) 0.5 0.25
Eccentricity (degrees) 5 5
Deviation in shaft direction (mm) ±0.4 ±0.25
Allowable torque (N·m) 0.8 1
Torsion rigidity (Nm/rad) 16 8.2
Moment of inertia (kgm2) 1.2 × 10-7 7 × 10-7
Weight (g) 4 13

Note: Note: The above specifications are for the coupling by itself. When the coupling is used together with a Rotary Encoder, allow for the precautions for all Rotary Encoders and for the specifications of the Encoder.