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igus® inc.

PO BOX 14349

East Providence

RI 02914

+1 800 521 2747
+1 401 438 7270

Plastic bushings for construction vehicles

Mini excavator's track rollers

Service life increased

This mini excavator moves with the aid of a rubber-crawler. In order to distribute its weight equally across the entire vehicle's base, track rollers simultaneously guide the rubber-crawler sideways.

The harsh working conditions for the excavator undercarriage mean the track rollers are vulnerable to damage. iglide® G300 plastic bushings replaced expensive, grooved ball bearings and substantially increased service life due to their greatly reduced susceptibility to dirt and humidity. This application has been running problem-free and without maintenance for four years.

iglide® G300 is generally recommended whenever an economical, all-round plastic bushing is required.

iglide® G300 withstands extremely high loads and works at low to medium surface speeds. Its maximum short-term temperature is +428°F and it will also function at temperatures as low as -40°F. Even though its compressive strength decreases with increasing temperatures, the permissible surface pressure at the maximum long-term temperature (266°F) still amounts to over 5,802 psi.

iglide® G300 bushings are also extremely resistant to chemicals.

Excavator with plastic bushings

Track roller in the excavator undercarriage

 
plastic bushing for excavator

Cross section of the original track roller (left) and the modified roller (right)

 
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