Polymer bearings protect agri-equipment
A new generation of polymer bearings are extending equipment life, eliminating lubrication and slashing maintenance of agricultural machines and doing so without the use of potentially contaminating lubricants.
It is no secret that agriculture equipment must withstand harsh conditions like mud, dust, moisture, vibrations and heavy loads where heavy-duty traditional metal bearings require regular maintenance and continuous lubrication. This is not the case with the latest heavy-duty polymer bearings from igus which exceed metal bearings in terms of durability, efficiency and smoother operation.
According to Juan-Eric Davidtz of igus South Africa, the company’s iglide polymer bearings have turned the market on its head in recent times with dry (built-in) self-lubricating bearings that were once thought impossible. They significantly improve performance, last longer and eliminate the need for external lubricants that can attract dirt and cause wear. This feature is especially beneficial in dusty environments, where traditional lubricated bearings can fail prematurely due to contamination.
“The longevity of igus bearings is well-documented and some of the longest lasting ones are going on 20 years in use where a manufacturer of harvesting machines has been using iglide bearings in their mower bars for over two decades. These bearings have endured extreme stresses from high impact loads to varying temperatures without the need for maintenance.
“Apart from their durability polymer bearings offer significant advantages in terms of shaft protection. Unlike metal bearings which can cause shaft damage over time igus bearings are softer than steel shafts and therefore do not wear these potentially expensive components.
“Even noise is reduced and the polymers’ inherent vibration-damping properties result in quieter machinery operation which is a feature appreciated in fieldwork and processing environments. In food-related agricultural applications hygiene is paramount and our blue-coloured bearings are made to be detected in the event that they are damaged or come loose. They are also resistant to chemicals, acids and high temperatures which ensures they meet the local requirements of food safety regulations,” explains Juan-Eric.
He adds that by cutting the need for lubrication and reducing maintenance downtime our farmers and manufacturers can achieve significant cost savings. Additionally, the lightweight nature of polymer bearings contributes to overall machinery efficiency and can even reduce energy consumption.
