37 www.drivesncontrols.com March 2026 BEARINGS, BELTS AND CHAINS n temperature greases. Heavily loaded systems may benefit from oil’s superior film strength and flow characteristics, though grease formulations with extreme pressure additives can also perform well in low-speed, high-load conditions. In environments where contamination is a concern – such as dusty, wet or chemically aggressive settings – grease tends to be the better option, as its consistency helps to seal out harmful debris and moisture. Finally, maintenance accessibility must be considered. In applications where regular relubrication is difficult or impractical, sealed bearings pre-filled with grease offer a more reliable and maintenance-free option. Finding the balance Ultimately, the choice between grease and oil comes down to balancing performance needs with practical constraints. Grease offers simplicity, sealing and lower maintenance – ideal for many industrial and automotive applications. Oil, on the other hand, delivers superior cooling and lubrication under extreme conditions, but requires more involved set-up and monitoring. By assessing the demands of the application carefully, and understanding the strengths and limitations of each lubrication type, engineers and maintenance teams can make informed decisions that extend bearing life, reduce downtime and increase operational efficiency. n Oil is often favoured in high-speed or low-torque applications The German chain manufacturer, iwis, has developed this highperformance, hydraulically-powered chain-breaking tool for roller and conveyor chains. The closed hydraulic system of the Multi.Press tool produces operating pressures of up to 700 bar, allowing chains to be broken, assembled and riveted reliably and efficiently in workshops, maintenance and assembly operations. It can handle chain sizes from ½" to 2" (ISO & ANSI), including leaf chains and optional special chains. The tool can operate in a fixed position, or moved for use directly at machinery. There are three hydraulic pumping options: a hand pump; a pneumatic pump; or a battery-powered electrohydraulic system.
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