Steel-to-steel and steel-to-brass pairings under oil-free lubrication conditions
Thread Content
When modifying the steam distribution mechanism of BAIC turbines, the technician replaced the original needle bearings with brass sliding bearings that operate without oil. They work fine. According to available information, under oil-free lubrication conditions, the friction coefficient between steel surfaces is 0.1, while it is 0.19 for steel and brass; this means that the frictional resistance is relatively lower when steel surfaces are in contact with each other. Is there anyone who can help explain this, or do you have experience with such modifications? I’d appreciate any advice; let’s discuss it together.
Higher precision is required when processing steel against steel, while brass should have self-lubricating properties, allowing for relatively lower precision requirements