Application gear in the transmission of very early there, three hundred years BC, the ancient Greek philosopher Aristotle in "mechanical problems", in relation describes passing bronze or cast iron gear rotational movement problems. Ancient Chinese invention has been applied to guide the car full set of gear train. However, the ancient gears are made of wood or metal cast, only pass the rotary motion of non-standard shaft axis between parts, and can not ensure the smooth transmission of, the carrying capacity of the gear is also very small. According to historical records, as far away as 400 to 200 BC in ancient China began to use gear, in our Shanxi unearthed bronze gear is the oldest non-standard gear shaft parts of the process so far has been found, as a reflection of scientific and technological achievements of ancient guide the car is in gear mechanism as the core mechanism. Non-standard shaft parts of the 17th century the main, people began to study the shape of the tooth can be passed correctly movement. 18th century, after the industrial revolution in Europe, gear used widely; first development cycloid gear, then a non-standard involute gear shaft parts prices, until the early 20th century, involute gear has accounted for in the application advantage. Shaft parts is one of the typical hardware accessories parts often encountered, it is mainly used to support transmission parts, transmission torque and load bearing, shaft parts according to different structural forms, and can be divided into the optical axis, stepped shaft and profiled three axes; or divided solid shaft, hollow shaft. They are used to support the machine gears, pulleys and other transmission parts to transmit torque or movement. Rotating shaft parts are body parts, its length is greater than the diameter, generally by the outer cylindrical, conical surface, bore and thread and the corresponding end surface composed of concentric shafts. Depending on the shape of the structure, the shaft parts can be divided into the optical axis, stepped shaft, hollow shaft and crankshaft. Non-standard shaft parts Loudi non-standard parameters _ _ Fuyuan gear shaft parts quality assurance provided by the Luoyang Fuyuan Gear Machinery Limited. Luoyang Fuyuan Gear Machinery Co., Ltd. (www.lyfycl.com) strong, credible, in Luoyang gear industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Fuyuan gear and you hand into the brilliant, for a better future!