首页>
外国专利>
Roller cone drill bits with optimized bearing structures
Roller cone drill bits with optimized bearing structures
展开▼
机译:具有优化轴承结构的牙轮钻头
展开▼
页面导航
摘要
著录项
相似文献
摘要
A roller cone drill bit may include optimally designed bearing structures and cutting structures. The roller cone drill bit may include three cone assemblies rotatably mounted on respective spindles via respective bearing structures. Each cone assembly may have a respective cutting structure with a minimal moment center located along each respective axis of rotation. Each respective bearing structure has a center point located proximate each respective minimal moment center.
展开▼