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  5. Bearing technology for sowing machine

Sowing machine: Wear-free and maintenance-free

Thrust washers made of iglidur G enable a maintenance-free and failure-free seeding process.

This sowing machine is used to sow seeds for maize, soya or sunflowers on the field to be cultivated. In order to achieve an optimum harvest result, it is important that the individual sowing discs over which the seed is spread function perfectly. This is ensured by an iglidur G thrust washer in the 48 couplings of the machine. In contrast to alternative solutions made of bronze, the plastic disc is durable and resistant to dirt and moisture thanks to its lubrication-free design.

Profile

  • What was needed: Thrust washer made of the material iglidur G
  • Requirements: The company was looking for a bearing that would work for a long time under high dust levels and strong vibrations and be as maintenance-free as possible.
  • Industry: Agriculture
  • Success for the customer: The thrust washer made of iglidur G represents a more durable alternative to the bronze spacer disc used in the past. It requires no lubrication and is therefore completely maintenance-free. The high volume of dust in the fields is no longer a problem for the electric coupling.
Sowing machine

Problem

The sowing discs over which the seed is spread must always function perfectly in this sowing machine. A total of 48 couplings in the sowing machine are responsible for this, which can separate the gearbox from the seed plate of the planter. It operates on a rotating shaft under dust and vibration conditions. The coupling is assembled on each sowing row of a planter for maize, soya and sunflowers.
Due to the difficult working conditions, however, the problem arises that the electric coupling does not always function properly. To solve the problem, it was decided to use a bronze spacer disc. However, this proved to be only a fragile and short-term solution.

Solution

Due to the problems with the electrical coupling, the designers decided to use a thrust washer made of the material iglidur G. This polymer disc (specifically, a GTM2238 thrust washer was used) solves the problem of coupling blockage and thus the wear of the spacer inside the coupling. Unlike the bronze spacer disc, this is a long-term solution as it does not require any lubrication and is therefore completely maintenance-free. The high volume of dust in the fields is therefore no longer a problem for the electric coupling.
Sowing machine

Maschio Gaspardo S.p.A., Enrico Bragatto, Morsano al Tagliamento, Italy

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iglidur® G

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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, Bosh Rexroth, SEW, Siemens, Stöber and all other drive manufacturers mentioned on this website. The products offered by igus® are those of igus® GmbH.