Rounding precision bearing production process

Bearing is an important component in modern industrial machinery, its main role is to support and reduce the friction. No bearings, no machine can run normally. A small bearing is how to produce? In what are the steps in the process of bearing production? Below the author introduce precision bearing production process for you. Step one, forging part 1, the labor and feeding, processing step work refers to the surface ( Or assembly of the surface of the connection) And processing ( Or assembly) Under the condition of invariable tools for completion by the part of a process. A process can involve several step, also can only one step. 2, installation and location, bearing before processing, on the machine or jig to occupy a position (right first Positioning) , and then the clamping process is referred to as the clamping. Artifacts ( Or assembled unit) After a clamping the complete content of the part of a process called installation. In the procedure can have one or more of the installation. 2, 1, interrupted quenching heat treatment steps, in full DNA BaCl2 and NaCl 50% ( The mass fraction) In the salt bath furnace, in 840 ~ 850 ℃ heating through to 200 ℃ after burn in hot oil to keep oil cooled after 3 min. 2, tempering, in 215 ~ 225 ℃ nitrate bath for 2. 5 to 3. Air cooling after 5 h. 3, cold treatment, the liquid co2 + alcohol medium, about - 78 ℃ for 2 ~ 3 h, Cold) After the natural return to room temperature to coarse grinding process. 4, in the incubator with fan, keep at 135 ℃ for 5 h, air cooling to room temperature after into fine grinding process. 5, fine grinding after aging 130 ~ 140 ℃, the heat preservation of air cooling after 10 h. 6, the measured hardness of 61 HRC, carbide particles on average about 0. 5 microns, retained austenite ( Volume fraction) About 2. 8%, size stability, Deformation is less than 1 microns) 。 Three, grinding and machining precision bearing ring 1, will be assembled in the high temperature furnace, heating up to 830 ℃ ~ 860 ℃, 30 ~ 60 minutes in this temperature environment. 2, and then into the quenching cooling processing agent, fall to 20 ℃ ~ 30 ℃, plastic processing. Cold treatment, 3, and then will after quenching treatment of precision bearing into the liquid nitrogen freezer, the temperature dropped to - will be After 70 ℃, the heat preservation for two hours, the liquid nitrogen, from the liquid nitrogen freezer, and then high temperature tempering, keep 4 at about 190 ℃. 5 hours, remove the austenitic, QuShi body. It can improve the hardness and wear resistance of steel and stabilize the size of the bearing ring, maintain the stability of bearing materials, the deformation is only 0. Below 003 mm, improve the wearability of bearing, extend the service life. Above is for precision bearing production process, the forging part main bearing is using reliability and life expectancy, link of heat treatment can improve the bearing wear resistance and hardness, grinding and machining is an important part of the bearing precision, need extra attention to. Jiaxing bearing has nearly 20 years of ultra-high speed precision bearing manufacturing experience and excellent pre-market after-sales team, quick response, technology research and development team to solve your problem, to provide free technical guidance for you, welcome to leave a message or call advisory. Tags: precision bearing production process