Features of Beam Coupling / Lead Screw
One-piece metallic spring coupling. 
Compensate for axial, angular and parallel misalignment by spring action.
No requirement for maintenance misalignment.
Zero backlash.

Feature of Bellows Coupling
High tensional stiffness, low inertia and high precision
Spring action bellows configuration allows axial, angular and parallel misalignment
Identical clockwise and anticlockwise rotational characteristics misalignment
Zero backlash
Clamp type

Features of Disc Coupling 
Wide application coverage from low torque to high torque
Identical clockwise and anticlockwise rotational characteristics
Stainless disc will compensate for axial, angular and parallel misalignment
For servo motor and step motor connect
Clamp type
Excellent rotation precision

Features of Jaw Coupling
Coupling assembled by pressing a polyurethane sleeve into hubs on both sides
Can absorb the lash of clockwise and anticlockwise
Identical clockwise and anticlockwise rotational characteristics
For servo motor and step motor connect
Clamp type

Features of Oldham Coupling
Oldham type flexible coupling
Allows high parallel and angular misalignments
No requirement for maintenance misalignment
Zero backlash