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  5. Plain bearing & linear guide in felling wedge

Silver manus® 2021 - felling wedge

Description of application

Industry: forestry
customer requirement: long service life despite dirt and high radial forces
igus solution: iglidur G plain bearings, drylin W linear guide
 
Forstreich GmbH receives the silver manus for the use of iglidur plain bearings and drylin linear guides in a felling wedge. 
The last few dry years have made it increasingly dangerous to fell trees with a hammer and wedge. Dead branches fall at the slightest impact. Forstreich, a company based in Freiburg, Germany, has therefore developed a radio-controlled, battery-driven felling wedge.

The forester places the wedge in the saw cut and starts the felling process, keeping a distance of at least ten metres. The design engineers use drylin W double rails and pillow blocks for the felling wedge's linear movements. They also use iglidur G plain bearings. The components allow the wedge to absorb radial forces over a long service life – even in environments with dirt, sand and wood chips.

Adverse conditions for the linear guide

The linear guide and the bearings withstand extreme ambient conditions. "Soil, sand, sawdust, moisture and resin were not allowed to cause bearing failure or seizure in our application.

With the igus polymer products, we found the ideal thing. In combination with dirt, metal bearings with lubricant would have blocked the bearing", Stefan Reichenbach continues. – "We do not use any lubricants in our bearings, which makes our solutions lightweight, robust, lubrication and maintenance-free. The same applies to our rails made of hardened and anodised aluminium", explains Philipp Köbele, Technical Sales Consultant at igus GmbH.Another important point: by not using external lubricants, no oil gets into the forest soil. Despite their low price, the bearings can support and transmit high radial forces and torques, and have a very long service life.
Philipp Köbele (right), Technical Sales Consultant at igus GmbH and CEO of Forstreich GmbH Stefan Reichenbach Philipp Köbele (right), Technical Sales Consultant at igus GmbH and CEO of Forstreich GmbH Stefan Reichenbach
Felling wedge with iglidur plain bearings and drylin linear guide
Felling wedge in use

The terms "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", "RCYL", "readycable", "readychain", "ReBeL", "ReCyycle", "reguse", "robolink", "Rohbot", "savfe", "speedigus", "superwise", "take the dryway", "tribofilament", "tribotape", "triflex", "twisterchain", "when it moves, igus improves", "xirodur", "xiros" and "yes" are legally protected trademarks of the igus® GmbH/ Cologne in the Federal Republic of Germany and where applicable in some foreign countries. This is a non-exhaustive list of trademarks (e.g. pending trademark applications or registered trademarks) of igus GmbH or affiliated companies of igus in Germany, the European Union, the USA and/or other countries or jurisdictions.

igus® GmbH points out that it does not sell any products of the companies 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 and all other drive manufacturers mention on this website. The products offered by igus® are those of igus® GmbH