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Service life calculation thanks to the test laboratory

iglidur 3D-printed components on the test rig


3D printing polymers that, in moving parts, last up to 80 times as long as normal plastics from conventional manufacturing processes, and in some applications, are more durable than metal.


Is that a pipe dream? No, those are the clear statistics provided by testing in our test laboratory and confirmed by our customers. Calculated, tested, proven: each statement about the service life of iglidur plastics for additive manufacturing is based on comparisons that have been performed many times. Their evaluation is also the basis of our service life calculator - which you can use to calculate the expected service life of your printed components in just a few clicks.

Comparison of 3D printed linear bearings

3D printed linear bearings in testing

Less wear than ABS by a factor of 33

3D printed gears in testing

3D printed gears in testing

Up to 80% more abrasion-resistant than ordinary plastics

3D printed bushing in short linear stroke testing

3D printed bushing in testing

More than 300 times the service life of ABS

Printed drive thread nuts tested

3D printed lead screw nuts in testing

Up to 18 times the durability of ABS

3D printed plain bearings in the pivot test

3D printed plain bearings in testing

Up to 50 times the abrasion resistance of PA12

Coefficient of friction and service life test for rotating bearings

3D printed bearings in rotation testing

Long service life for iglidur i3, complete failure for ABS


Wear test: linear long stroke

3D printing materials in the test: wear-resistant polymer iglidur® i3 beats ABS material by factor 33

Linear search (long stroke) Test parameters:
  • Surface pressure: 0.11MPa
  • Surface speed: 0.34m/s
  • Stroke: 370mm
  • Duration: 3 weeks
Shaft materials: alu hc
Wear test linear graph      Y = wear rate [μm/km]

     X-axis:
 materials under test

     1. ABS (FDM 3D printing)
     2. iglidur i180 (FDM 3D printing)
     3. iglidur i3 (SLS 3D printing)
     4. iglidur J (injection moulding)
Abrasive wear of linear sliding bushes after test Test result:
The long-stroke test shows 15 times lower wear values for iglidur i180 (FDM) and even 33 times lower values for iglidur i3 (laser sintering). Due to the very good tribological specifications, the wear-resistant iglidur materials are ideal for long-stroke applications, e.g. X-Y linear robots for pick & place applications or plain bearings and glide bars in the 3D printer.

Wear test: linear short stroke

Tribological properties of plain bearings from the 3D printer almost identical to injection-moulded ones

Wear test linear short stroke Test parameters:
  • Surface pressure: 1MPa
  • Surface speed: 0.3m/s 
  • Stroke: 5mm
  • Duration: one week
Shaft materials:
■ CF53/1.1213: hardened steel
■ V2A/1.4301: stainless steel
Linear wear test for 3D printed plain bearings      Y-axis: wear rate [μm/km]

     
X-axis: materials under testing

     1. ABS (FDM 3D printing)
     2. iglidur® J260 (FDM 3D printing)
     3. iglidur® J260 (injection moulding)
Wear test linear short stroke Test result:
The plain bearing made of wear-resistant plastic iglidur J260 has similar good wear rates, regardless of whether it was manufactured using 3D printing or injection moulding. iglidur J260 injection-moulded plain bearings and bearings printed in 3D were tested with the same load and surface speed. This test also shows that, thanks to tribological properties, our iglidur 3D printing materials exhibit a coefficient of friction and abrasive wear that is much lower than those in standard ABS materials.Determine the service life of 3D printed plain bearings in your application: just enter the necessary parameters into the free plain bearing service life calculator, and the service life is calculated:

Bearings made of 3D printed sliding polymers are attractive because their service life is much higher than that of components 3D printed from other plastics, and exhibit a coefficient of wear that is at least as low as turned parts

Test parameters:
  • Surface pressure: 1MPa
  • Surface speed: 0.1m/s
Shaft materials:
■ CF53/1.1213: hardened steel
■ V2A/1.4301: stainless steel
X-axis: Materials in the test

1. iglidur i3 (laser sintering 3D printing)
2. iglidur i150 (FDM 3D printing)
3. iglidur i190 (FDM 3D printing)
4. PA12 (SLS 3D printing)
5. ABS (FDM 3D printing)
6. PA66 (injection moulding)
7. POM (machined)
8. PA66 (machined)
iglidur polymers for 3D printing in testing Y axis: wear rate [mg/km] (a lower wear rate means a longer service life)

Wear test: pivoting

Up to 50 times higher abrasion resistance thanks to iglidur polymers

Wear test, pivoting Test parameters:
  • Surface pressure: 20MPa
  • Surface speed: 0.01m/s
  • Pivoting angle 60°
  • Duration: 4 weeks
Shaft materials: 304 SS
Wear test swivelling graph

     Y = wear rate [µm/km

     X-axis: materials under test

     1. PA12 (SLS 3D printing)
     2. PA12 + glass balls (SLS 3D printing)
     3. iglidur i3 (SLS 3D printing)
     4. iglidur W300 (injection moulding)
Abrasive wear of plain bearings in the swivelling wear test

Test result:

In the pivot test, the tribological specifications of the iglidur filaments lead to an abrasion resistance that is up to 50 times higher than that of standard 3D printing materials (e.g. ABS). Wear-resistant polymer ensures a much longer service life of plain bearings and other components.How long will a printed iglidur bearing last in your application? Just enter the requirements and determine the service life online with our free plain bearing service life calculator.

In the swivel test, bearings made of 3D printed sliding polymers exhibit a service life several times that of other plastics, regardless of the manufacturing process

Test parameters:
  • Surface pressure: 2MPa
  • Surface speed: 0.01m/s
  • Pivoting angle 60°
Shaft materials:
■ CF53/1.1213: hardened steel
■ V2A/1.4301: stainless steel
X-axis: Materials in the test

1. iglidur i3 (laser sintering 3D printing)
2. iglidur i150 (FDM 3D printing)
3. iglidur i190 (FDM 3D printing)
4. PA12 (SLS 3D printing)
5. ABS (FDM 3D printing)
6. PA66 (injection moulding)
7. POM (machined)
8. PA66 (machined)
iglidur polymers for 3D printing in testing Y axis: wear rate [mg/km] (a lower wear rate means a longer service life)

Wear test: pivoting heavy load

Comparable tribological properties of printed and injection-moulded plain bearings

Swivelling heavy load wear test

Test parameters:

  • Surface pressure: 10, 20 and 45MPa
  • Surface speed: 0.01m/s
  • Pivoting angle 60°
  • Duration: one week
Swivelling heavy load wear test graph

           Y-axis: wear rate [μm/km]

           X-axis: materials under testing

           1. iglidur i3 (laser sintering 3D printing)
           2. iglidur i180 (FDM 3D printing)
           3. iglidur G (injection moulding)
           4. iglidur W300 (injection moulding)

      Wear-resistant polymer in swivelling heavy load wear test Test result: This heavy-duty test shows that 3D printed plain bearings (produced with the laser sintering printing method) can withstand loads of up to 45MPa surface pressure. The abrasive wear and tribological specifications are just as good as those of plain bearings from injection moulding. In the test, plain bearings with a diameter and length of 20mm were tested, i.e. 1,800kg of load on the 3D printed plain bearing. The test results show that plain bearings made of wear-resistant iglidur polymers are also suitable for heavy-duty applications. Determine the exact service life of a 3D-printed plain bearing made of iglidur in your application: just enter the necessary parameters into the free plain bearing service life calculator, and the service life is calculated online. 

      Wear test: pivoting under water

      Wear rate comparison of iglidur materials for 3D printing and injection moulding in underwater applications

      Test parameters:
      • Surface pressure: 1 and 2MPa
      • Surface speed: 0.01m/s
      • Temperature: 23°C
      Shaft material: 304 SS

      X-axis: materials under test

      1. iglidur i3 (SLS 3D printing)
      2. iglidur i8-ESD (SLS 3D printing)
      3. iglidur J (injection moulding)
      4. iglidur UW (injection moulding)
      5. iglidur UW160 (injection moulding)
      Wear test for 3D printed materials under water      Y-axis: wear rate [µm/km]
      Test result:
      This pivoting test under water shows that 3D-printed plain bearings made of the electrostatically dissipative laser sintering material iglidur i8-ESD have a particularly long service life and the material is therefore just as suitable for such applications as the injection moulding materials iglidur UW and UW160, which were specifically developed for use under water.
      iglidur J is a frequently used igus material in dry environments, but is not so well suited for use under water due to its rather high wear rate.

      Wear test: drive nut

      iglidur materials in 3D printing: wear-resistant polymers more durable by factor 6 to factor 18 compared to standard materials

      Wear test: drive nut

      Test parameters:

      • Torque: 129Nm
      • Stroke: 370mm
      • Speed: 290rpm
      • Duration: 2 weeks
      Drive nut wear test graph      Y = wear rate [mg/km]

           
      X-axis: materials under test

           1. ABS (FDM 3D printing)
           2. iglidur i180 (FDM 3D printing)
           3. iglidur J260 (FDM 3D printing)
           4. iglidur i3 (SLS 3D printing)
           5. iglidur J (injection moulding)
      Wear test: drive nut Test result:
      In this test, the wear resistance of igus 3D printing materials is 6 to 18 times higher than that of conventional materials, depending on the 3D printing material and process.
      Producing drive nuts using 3D printing offers cost advantages, especially for small quantities, as the thread can be produced directly in the 3D print and no expensive tool is required to cut the thread. All that is required is that the thread is designed in the model.
       

      Friction test: rotating

      Comparison of wear-resistant polymer iglidur and standard ABS material - lower coefficient of friction with iglidur

      Friction test rotating Test parameters:
      • Surface pressure: 1MPa
      • Surface speed: 0.1m/s
      Shaft material: Cf53
      Friction test rotating graph      Y = coefficient of friction [-]
           X = operating time [h]


           1. PA12 (SLS 3D printing)
           2. iglidur i3 (SLS 3D printing)


       
      Abrasive wear in the test: coefficient of friction rotating Test result:
      In the test, the tribological specifications of iglidur i3 are better by a factor of 2 than those of the standard 3D printing materials. This is because iglidur materials contain solid lubricants, which lower the coefficient of friction and significantly increase wear resistance. Wear-resistant plastics and tribological specifications are helpful in the design of motors and drive forces, as only half the drive forces are required with half the friction. In our free plain bearing service life calculator, enter your requirements to determine how long a 3D printed bearing made of iglidur will last in your application. 

      Wear test: rotating

      Coefficient of wear for iglidur 3D printing materials compared to those of regular 3D printing plastics

      Wear test, rotating Test parameters:
      • Surface pressure: 20MPa
      • Surface speed: 0.01m/s
      Shaft material: V2A
      3D printed plain bearing in rotating wear testing      Y-axis: wear rate [μm/km]

           X-axis: materials under testing

           1. ABS (FDM 3D printing)
           2. PA12 (laser sintering 3D printing)
           3. iglidur i180 (FDM 3D printing)
           4. iglidur J260 (FDM 3D printing)
           5. iglidur i3 (SLS 3D printing)
           6. iglidur W300 (injection moulding)
      Abrasive wear in testing: rotating wear test Test result:
      The wear of printed bearings including iglidur i180 is 89.5% lower than that of bearings made from the ABS plastic frequently used in 3D printing using the same process. The sintered bearing made of iglidur i3 proved 94.87% less wear than the sintered bearing made of PA12. Only bearings printed from the iglidur J260 special filament and injection moulded from iglidur W300 had better values. How long will a 3D printed bearing made of iglidur last in your application? Use our online plain bearing service life calculator to precisely determine service life by entering the necessary requirements. 

      In the wear test, bearings made of 3D printed sliding polymer perform much better than bearings made of regular plastics, regardless of manufacturing process

      Test parameters:
      • Surface pressure: 1MPa
      • Surface speed: 0.3m/s 
      Shaft materials:
      ■ CF53/1.1213: hardened steel
      ■ V2A/1.4301: stainless steel
      X-axis: Materials in the test

      1. iglidur i3 (laser sintering 3D printing)
      2. iglidur i190 (FDM 3D printing)
      3. PA12 (SLS 3D printing)
      4. ABS (FDM 3D printing)
      5. PA66 (injection moulding)
      6. POM (machined)
      7. PA66 (machined)
      iglidur polymers for 3D printing in testing Y axis: wear rate [mg/km] (a lower wear rate means a longer service life)

      Wear test: rotating under water

      Wear rate comparison of iglidur materials for 3D printing and injection moulding in underwater applications

      Test parameters:

      • Surface pressure: 1 and 2MPa
      • Surface speed: 0.3m/s 
      • Temperature: 23°C
      Shaft material: 304 SS

      X-axis: materials under test

      1. iglidur i3 (SLS 3D printing)
      2. iglidur i8-ESD (SLS 3D printing)
      3. iglidur J (injection moulding)
      4. iglidur UW (injection moulding)
      5. iglidur UW160 (injection moulding)
      Wear test for 3D printed materials under water      Y-axis: wear rate [µm/km]

       
      Test result:
      The rotation test under water shows that 3D-printed plain bearings made of the electrostatically dissipative laser sintering material iglidur i8-ESD have a particularly long service life and the material is therefore just as suitable for such applications as the injection moulding materials iglidur UW and UW160, which were specially developed for use under water.
      iglidur J is a frequently used igus material in dry environments, but is not so well suited for use under water due to its rather high wear rate.

      Test for UV and weather resistance

      Comparison of the change in strength of iglidur materials for 3D printing and injection moulding

      Test conditions:

      • ASTM G154 cycle: simulation of weathering conditions and UV light
      • Duration: 2,000 hours
      X-axis: materials under test

      1. iglidur i8-ESD (SLS 3D printing)
      2. iglidur i3 (SLS 3D printing)
      3. iglidur i6 (SLS 3D printing)
      4. iglidur J (injection moulding)
      5. iglidur G (injection moulding)
      UV and weather resistance of 3D printing materials
      Y-axis: percentage change in strength
      Test result: SLS materials are in no way inferior to injection-moulding materials

      After the test specimens were exposed to moisture and UV light for 2,000 hours, the test proved that the iglidur materials for selective laser sintering show a similar change in strength as the most commonly used injection-moulding materials iglidur J and G. The SLS material iglidur i8-ESD is most resistant to weathering and UV light. This test makes it clear that the iglidur 3D printing materials are in no way inferior to injection-moulding materials in terms of UV and weather resistance.

      Gear test: cycles until gear breakage

      3D printed gear in testing

      Test parameters:
      Pivoting 1440°:
      n = 64rpm
      M = 2.25Nm
      z= 30
      m= 1
      b = 6mm

      In this test, a gear drives a rack, and the number of cycles completed before the gear breaks is recorded. It can be seen that the iglidur gears made by 3D printing or laser sintering lasted twice as long as milled gears made of POM.

      X-axis: Materials in the test

      1. iglidur i3 (printed)
      2. iglidur i8-ESD (printed)
      3. POM (milled)
      4. iglidur i6 (printed)
      5. iglidur i190 (printed)
      6. PLA (printed)
      7. PETG (printed)
      8. SLA 
      3D printed gear in service life testing Y-axis: cycles until tooth breakage Except for the gear made of POM, the CAD models for all tested gears come from the igus gear configurator.

      Extremely long service life of worm gears with optimised sliding properties

      Test parameters:

      • Torque: 4.9Nm
      • Speed: 12rpm
      • Mating partner: hard anodised aluminium
      • Duration: 2 months
      Evaluation:
      ► POM (milled): Total failure after 621,000 cycles
      ► iglidur i6 (sintered): Minor wear after 1 million cycles

      Low abrasive friction due to tribology polymers from the 3D printer

      Wear is an important aspect of parts in moving applications. Wear-resistant polymers such as our iglidur materials are the solution for minimising wear and increasing the parts' service life. Their tribological specifications make iglidur materials perfect for all applications in which a good coefficient of friction and very low wear are key. The igus test laboratory covers 3,800m². In an extensive series of experiments, igus is researching and developing new 3D printing materials for moving applications in the industry's largest test laboratory. All materials are tested regarding their tribological properties in different test series so as to minimise wear and maintenance intervals. They are particularly low-friction and wear-resistant and ensure a lubrication-free and low-maintenance operation. iglidur polymers offer very good tribological specifications and ensure a longer service life for polymer components.
      In our test laboratory, we continuously test the tribological specifications of 3D-printed parts in accordance with DIN ISO 7148-2. The test series included linear, pivoting and rotating movements on various shaft materials. With our iglidur® J260 filament, the coefficients of friction and wear were low in all tests, while the standard ABS material failed quickly in the rotating test on the stainless steel shaft. The printed plain bearings made of iglidur special filament are similarly wear-resistant in all test setups as classic iglidur injection-moulded components. Thanks to the wear-resistant plastic iglidur i3 and an optimised tooth shape, our 3D printed gears achieve a longer service life than standard materials.

       



      The termen "Apiro", "AutoChain", "CFRIP", "chainflex", "chainge", "chains for cranes", "ConProtect", "cradle-chain", "CTD", "drygear", "drylin", "dryspin", "dry-tech", "dryway", "easy chain", "e-chain", "e-chain systems", "e-ketten", "e-kettensysteme", "e-loop", "energy chain", "energy chain systems", "enjoyneering", "e-skin", "e-spool", "fixflex", "flizz", "i.Cee", "ibow", "igear", "iglidur", "igubal", "igumid", "igus", "igus improves what moves", "igus:bike", "igusGO", "igutex", "iguverse", "iguversum", "kineKIT", "kopla", "manus", "motion plastics", "motion polymers", "motionary", "plastics for longer life", "print2mold", "Rawbot", "RBTX", "readycable", "readychain", "ReBeL", "ReCyycle", "reguse", "robolink", "Rohbot", "savfe", "speedigus", "superwise", "take the dryway", "tribofilament", "tribotape", "triflex", "twisterchain", "when it moves, igus improves", "xirodur", "xiros" en "yes" zijn wettelijk beschermde handelsmerken van igus® GmbH/Keulen in de Bondsrepubliek Duitsland en, indien van toepassing, in sommige andere landen. Dit is een niet-uitputtende lijst van handelsmerken (bijv. lopende handelsmerkaanvragen of geregistreerde handelsmerken) van igus GmbH of gelieerde ondernemingen van igus in Duitsland, de Europese Unie, de VS en/of andere landen of rechtsgebieden.

      igus® GmbH benadrukt dat het geen producten verkoopt van de bedrijven Allen Bradley, B&R, Baumüller, Beckhoff, Lahr, Control Techniques, Danaher Motion, ELAU, FAGOR, FANUC, Festo, Heidenhain, Jetter, Lenze, LinMot, LTi DRiVES, Mitsubishi, NUM, Parker, Bosch Rexroth, SEW, Siemens, Stöber en alle andere drive-fabrikanten die worden genoemd op deze website. De producten die worden aangeboden door igus® zijn die van igus® B.V.