Protected against corrosion and wear
Tech up

Tech up

  • Specifically developed for the application with dry-operating iglidur® plain bearings
  • 100% corrosion protection and longer service life

Cost down

Cost down

  • Cost-effective coating technology enables the use of cost-effective shaft steels
  • Surface specially optimised for high running performance and durability extends service life and thus saves costs





GKF wear rates

  • Wear comparison: abrasion after 200,000 cycles with different iglidur® bushings on test shafts with hard-chrome, GKF and  galvanised surface p = 30N/mm²; v = 0.01m/s, pivoting movement.  

igus supports the circular economy of plastics and is investing in chemical recycling. Learn more about this topic.

Ideal for plain bearings - iglidur® GKF shafts

iglidur® GKF shafts are perfectly optimised for use in combination with dry-operating plain bearings, and increase the service life of your bearing locations. As an alternative to galvanised or chromed shafts, GKF shafts offer an optimised gas-nitrified shaft surface and a special protection against corrosion and wear. They have been developed especially for the use in agricultural and forestry machines as well as for construction machinery and utility vehicles. 

The advantages of iglidur® GKF shafts

  • 3 times the corrosion resistance compared to galvanised and chrome-plated surfaces
  • Surface hardening and corrosion protection are produced in the same process
  • Corrosion protection reduces the risk of failure and wear
  • Weldable without additional machining
  • Greatly improved coefficient of wear compared to conventional shaft materials
Areas of application:
highly stressed external bearing points in construction machinery or commercial vehicles, as well as agricultural machinery for tillage and harvesting.

 AISI 1018AISI 1045AISI 4140 annealedAISI 4140 HTAISI 1020
Maximum tensile strength (psi)63.80084.80095.000148.00060.900
Tube    X
Surface hardness (HRc)≥50≥50≥55≥55≥50
Surface roughness
RMS (ra µm)
32 – 64 (0,8 – 1,2)32 – 64 (0,8 – 1,2)32 – 64 (0,8 – 1,2)32 – 64 (0,8 – 1,2)32 – 64 (0,8 – 1,2)
Core hardness, brinell126163197277121
Resistance to salt spray
ASTM B117-16
Up to 300 hrsUp to 300 hrsUp to 300 hrsUp to 300 hrsUp to 300 hrs

Advice on GKF shafts

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Sample box - iglidur plain bearings

iglidur improves sample box with templates and plain bearing catalogue

Learn about our materials. 
The sample box contains 39 plain bearings and templates, which makes it easy to find the right material.

Order now for free!

What is iglidur?

iglidur plain bearings under scrutiny

What do iglidur materials consist of? 
What is behind the self-lubrication effect? Learn more about the functionality of iglidur plain bearings.

iglidur materials under scrutiny