Spiral Beam Coupling 4mm - 4mm, TRM4332_0


This aluminium beam coupling connects two 4mm shafts together with set screws


This beam type coupling can be used to connect two 4mm shafts together. Each shaft is held in place by two set screws, allowing for easy installation. The spiral cut design allows for up to 2° of bending from angular misalignment of the shafts as well as 0.12mm of eccentric misalignment.

If you're having trouble with slipping, you can file a groove into the shaft where the set screws hold it in place. You can also use Loctite on the set screws to ensure that they remain in place.

If you want to be able to measure the speed that a rotary system is moving at, you can use this 4mm shaft coupler to connect to 3530_1 Encoder

Physical Properties  
Material Aluminium
Coupled Rated Torque 10 kg cm
Coupling Rated Speed 8000 RPM
Torsional Stiffness 110 N m/rad
Shaft Angularity Tolerance
Shaft Eccentricity Tolerance 150 μm
Inner Diameter 4mm
Weight 14 g