Practical Example of Modification of a Gearbox Lubrication System

This paper presents the optimization of lubrication method a helical bevel gearbox, which is part pickling line. The first gear stage this gearbox showed frequent failures. gearing and bearings were damaged. Damage analysis was performed, based on change in bearing proposed. In case, original transmission lubricated by dip lubrication. wheel insufficiently submerged below lubricating oil level. Due to insufficient gearing, both wheels, pinion, Central circulating has been proposed for pair shaft bearings. deals with design components. Changes modifications an existing system are layout question not originally designed adapted required. To improve system, it decided that should be redesigned central lubrication, meant implementing necessary casing modifications. Our novel contribution proposition innovative aimed at increasing service life parameters transmission. After implementation method, period monitoring operating characteristics followed. With modification pair, temperature surface lowered 39%. increased from 1.9 years least 5 years. On basis long-term changes caused adjustment we can state requirement met, failures eliminated.