Metal - cutting tools ; hobs for spur gears , with clutch drive slot or keyway , modules 1 to 20 金属切削刀具.带离合器驱动槽或键槽模数为1至20的正
Rod - ends with self - aligning ball bearings . long threaded shank without keyway . dimensions and loads 带自位球轴承的杆端.无键槽的长螺纹杆.尺寸和负荷
Rod - ends with self - lubricating spherical bearing . long threaded shank and keyway . dimensions and loads 带自润滑装置的球形接头.有键槽长螺纹杆.尺寸和载荷
Rod - ends with self - lubricating spherical bearing . long threaded shank without keyway . dimensions and loads 带自润滑装置的球形接头.无键槽长螺纹杆.尺寸和载荷
Abstract : pointing to the accuracy requirement of the keyway on shifts , this paper presents a special jig and a cutter positioning method 文摘:针对轴类零件键槽精度的要求，介绍了一种专用夹具及对刀方法。
12b twister adopt dual support , the main axis adopt thick seamless steel tube , through the keyway connect the winch and have good rigidity and no riding wheel ( 1 set of 12b assistant riding wheel ) , adopt gear to back twist and the twister can rotating on high speed in long time 5 18盘绞体采用双支撑座支撑，主轴为厚无缝钢管、通过键槽连接绞盘、具有钢性好、辅助托轮2套，采用齿轮退扭、绞体可长期高速旋转。
12b twister adopt dual support , the main axis adopt thick seamless steel tube , through the keyway connect the winch and have good rigidity and no riding wheel ( 1 set of 12b assistant riding wheel ) , adopt gear to back twist and the twister can rotating on high speed in long time 12盘绞体采用双支撑座支撑，主轴为厚无缝钢管、通过键槽连接绞盘、具有钢性好、无托轮（ 12盘辅助托轮1套） ，采用齿轮退扭、绞体可长期高速旋转。
On the basis of brief introduction of danjiangkou dam extension project which is in the middle route water resources project of the south - to - north water diversion , the present construction methods and existing problems about key technology of increased artificial concrete keyway of jointing surface between new concrete and existing concrete are analyzed , and a new construction method by saw - cutting and static crack for construction of concrete keyway is researched 摘要在简要介绍南水北调中线水源工程丹江口大坝加高工程概况的基础上，针对大坝加高中新老混凝土结合面新增人工键槽施工的关键技术，分析了现有施工方法及存在问题，研究并提出了新的锯割静裂法施工法。
