DAE JIN FORTUNE AUTOMATION TECHNOLOGY CO., LTD is a joint venture enterprise with multi-functions oriented in science, industry and trade. We manufactue and operate mainly the products and precision elements in LM system applied to the automatic machinery equipments. Our ultimate aim is to become the globalizational enterprise unified with manufacture and circulation of products in the field of linear motion We idenify the prodcts run by us and the similar ones from various countries all through the world and analise and research the quantity and price of the products of our corporation. We will renew the the products in time according to the requirement of the customers and offer the technical support to our users. We will equip and improve quality-inspecting system by which our products can be measured and contracted so that we can master the the quality of all sorts of items of our corporation and offer the products with fine quality and service with high level. "DAE JIN FORTUNE" will innovate new technology in order that our brand" DSF" can by known and accepted by the users all over the world and establish the undefeatable image and credit. We shall push forward in great efforts and step firmly towards one of the best of enterprises of the world. We warmly welcome the wise people in differrent fields to become our hearted cooperators and credible friends. Our manufactured LM-Shaft and LM-Bearing are as follows: Types of LM-Bearing: LM-UU, LM-UUOP, LMK-UU, LMF-UU, LMH-UU, LM-UUAJ and etc. The quality of the Bearings follows the national standard and all the technical data have reached the international standard. 1、Material： GCr 15 or 9Cr 18 is adopted to the sleeves and rolling bodies of the bearings.The retainers are enginearing plastic number 10 carbon steel or 1Cr 18 Ni9Ti. The value △FW of totally inner tolerence of the ball is 0─ -25μm for general grade and 0─ -11μm for precision grade deperately. 2、The surface hardness of the sleeves and rolling bodies of the bearings have all reached 61-65HRCand the hardness of the rolling bodies has reached 62-66HRC. 3、The roughness Ra of the installation is less than 0.32μm。 4、Deformity magnet of the whole bearing is no more than 0.4-0.8mT. We have also researched and manufactured LM Shafts series besides Bearing ones The quality of the Shafts has reached the leading level in the world through several years of experiment. The technical data are as follows: *Material：GCr 15, High Carbon Chrome Besaring Steel, Martine Stainless steel. *The hardess of the Shaft: The hardness the working surface is ±62HRC（Reference：the depth of the hardness is 0.8-3mm）. *The roughness Ra is less than 0.63μm. *The straightness of working aera is less than 5μm /100mm. *The allowable deviation of general grade is G5. The allowable deviationofof precision grade is H5. *Cylindricity of the shaft is 4-120mm(less than 2.0S).