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Protected against corrosion and wear

Tech up

Specifically developed for the application with dry-running iglidur® plain bearings
High corrosion protection and longer service life

Cost down

Cost-effective surface treatment enables the use of cost-effective shaft steels
A surface specially optimised for high running performance and durability extends service life and thus saves costs

Proof

Sustainability

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.

Due to the corrosion-protected surface no additional lubricants are required

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.

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The advantages of iglidur® GKF shafts

3 times lower wear 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 1018	AISI 1045	AISI 4140 annealed	AISI 4140 HT	AISI 1020
Maximum tensile strength (psi)	63.800	84.800	95.000	148.000	60.900
Rod	X	X	X	X
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, brinell	126	163	197	277	121
Resistance to salt spray ASTM B117-16	Up to 300 hrs	Up to 300 hrs	Up to 300 hrs	Up to 300 hrs	Up to 300 hrs

iglidur plain bearings in use

A hoeing machine for weeding

"We were looking for a material that was lubrication-free, robust and cost-effective, so we opted for the iglidur plain bearings from igus."

Klemens Ollmaier, Managing Partner of samo Maschinenbau GmbH

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iglidur plain bearings in use

Harvester

"In addition, we were looking for a bearing that did not require lubricants, because the farmer did not want to lubricate as in the very dusty environment this would quickly lead to strong dirt adhesion."

Jochen Gnann, Director Supply Chain at AGCO Feucht

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Slurry tanker with iglidur plain bearings

iglidur plain bearings in use

Slurry tankers

"The wear on the brass bushes was too high. Therefore, we were glad that the polymer bearings finally provided an effective alternative, because the plastic bearings are simply more robust."

Sebastian Zunhammer, Managing Director of Zunhammer GmbH

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iglidur plain bearings in use

Foot pedals for agricultural and construction machinery

"We have successfully tested the pedals with millions of operations to ensure years of trouble-free operation."

Michael Stoffers, Engineering Manager Mechanical Design, Sensata Technologies GmbH

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iglidur plain bearings in use

Cultivator

"In the beginning everyone laughed at us about the Karat cultivator because we wanted to use plastic at the bearing point."

Lars Heier, Head of Marketing Lemken GmbH

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iglidur plain bearings in use

Farm loaders

"Previously, the bushings had to be individually rubbed after painting [...] Thanks to the use of iglidur plain bearings, this work step has now been eliminated."

Manfred Thaler, CEO, Thaler GmbH & Co. KG

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