Which is good straight round rails | Cheng Feng bearing cheap (certified) | Taizhou straight round rails provided by Cheng Feng Bearing Co., Ltd. Lishui City. Lishui Cheng Feng Bearing Co. (susan1125.b2b.hc360.com/) is specialized in the "build bearing production projects, bearings and hardware accessories sales" of the enterprise, the company of "honesty, hard service" concept, for you provide the highest quality products and services. Welcome to inquire! Contact: Chen Zujiang. Linear axis is divided into ordinary linear optical axis, linear axis chrome, chrome straight shafts straight round rails, chrome hollow shaft, stainless steel linear axis. Different linear optical axis, has its own characteristics, under certain circumstances and requirements, to use a different axis, to the right to use them, it is necessary to know their strengths and weaknesses, in order to make better use of the optical axis. Linear optical axis of its kind include ordinary linear optical axis, linear axis chrome, chrome straight shafts, stainless steel linear axis, chrome hollow shaft. An ordinary linear optical axis (sf): Due to ordinary linear optical axis linear bearings point contact with the opposite surface hardness so demanding ordinary linear optical axis linear guide Which round, so the material and heat treatment method is very important. Roller linear guide (dual-axis rail is one of them) is a slider wheel drive, wheel usually 3-5 number, the heavier the wheel a few more loads: ball linear guide the ball by the slider drive, The number of small and large ball. Features Comparison: Linear roller ball linear guide rails relatively easy maintenance, such as sliders and roller linear guide rails easy disassembly simple round precision linear guide, easy to change with a single slider. Meanwhile eccentric nut capable of adjusting the gap between wheel and rail, so that the gap is zero. The slider and the ball linear guide rail is not open, because open will cause the ball to drop on the slider.