Effect of gear oil on energy savings

The effects of gear oil on energy savings are examined using four-roller ma chine and FZG gear machine. The influences of lubricating oil viscosity and extreme-pressure additives, as well as load and rotational speed on fricti on loss are experimented,It has become clear that the lower friction coeffi cient is obtained by four-roller machine, and the smaller electric power co nsumption by FZG gear machine. It has also become clear that the addition o f friction modifier such as an organic molybdenum additive is effective in energy savings. Furthermore, when the friction loss in the gear is calculat ed, the friction coefficient at 100% or 120% slide/roll ratio measured with four-roller machine is very sufficient.