My contact person
Select location

After selection of your ZIP code, we designate the relevant staff to attend to you at once.

Linear unit surpasses required service life by more than Factor 2

In test number 428 of the igus® test lab, the wear quality of the special lead screw linear system was tested in a service life test. The special lead screw linear system was set up and tested in continuous operation with the following test parameters:

Test parameters:

Stroke: 315mm

Load: 250N (radial, centrical)

Speed: 0.22m/sec.

Pause time: 1 sec.

Lead screw: high helix thread, 10 x 25mm

Nut: SWZ-W-3008 (length 30mm)

Test setup: horizontal installation position

Test setup: horizontal installation position

 
Test result:

Achieved cycle number until stop: 544,000 cycles

Axial clearance after test: approx. 0.6mm

Torque after test: 0.8Nm


The linear unit was still in function when the test was stopped.

Power consumption for duration of test: 1. Electricity (A) | 2. Number of cycles

Power consumption for duration of test: 1. Electricity (A) | 2. Number of cycles

 
Conclusion:

Linear unit surpasses required service life by more than Factor 2. Instead of the demanded 200,000 cycles, 544,000 cycles were achieved and the test was stopped.

Lead screw/lead screw support,

Lead screw/lead screw support, "piston ring solution" after test