Limiting Load for Scoring and Frictional Loss of Hypoid Gear : In Comparison with Spur Gear and Crossed Helical Gear, Using Mineral Oil and Synthetic Oil

抄録

The limiting load for scoring and frictional loss of the hypoid gears were compared with those of the spur gears and the crossed helical gears. As lubricants were chosen not only the mineral oils but also synthetic oils and a new relationship between limiting load for scoring among these three kinds of gears and the frictional loss of these gears was also investigated. The limiting load for scoring differs depending on whether it is the lubricating oil with Zn-P additive or the mineral oil with EP additive, or synthetic oil. Further the relative defference between the velocities (V₁ and V₂) of tooth surfaces, which engage each other, is found one of the most important factors for determining the load carrying characteristics.