Helical Flexible Coupling (coupler).
General purpose with light to medium duty.
This is economical and maintenance free coupling for variety of applications.
It is 7/8 dia x 1" lg w/ 1/4 bore in each end. Black Anodized aluminum.
Attachment via two set screws for each side.
Fits most NEMA 23 motor shafts.

The flexible beam corrects for a slight misalignment between the mating shafts, reducing wear and
tear on bearings. Also may help to dampen stepper motor resonance.
Strongly recommended for attaching an encoder shaft to a motor.

This is a clamp style coupler and does not require a flatted shaft. The clamp style fit is more
effective than a set screw as it will not marr the motor shaft. Works on round or D-flatted shafts.

Clamp screw takes a 3/32 Hex (Allen) wrench. Inch fasteners.

Technical Data:
Outer diameter:ø 7/8" (0.875")
Length: 1"
Inside diameter: 1/4" (0.25")
Suitable axis diameter:ø6.35mm ø0.25"
Driving moment: 2 N-m
Radial tolerance:0.2mm
Axial tolerance:+0.2mm
Angle tolerance:2°
Max.RPM:20000rpm
Material: LY12