Jiaxing bearing | bearing ring surface of the common quality problems and their causes, attention!

There is rotational, have HRB bearing ( ） Jiaxing bearing group sales co. , LTD. ( The company) Is bearing group co. , LTD. Established in jiaxing spot sales window, specializing in HRB brand bearings, facing the whole country, the existing stock 50 million yuan, covers the whole bearing, have very strong spot supply, is the group's retail sales center. Bearing ring raceway is bearing surface of workpiece, its quality is good or bad will directly affect the bearing performance and service life. In use process, we will often found some common quality problems on the surface of bearing ring, this quality problem is how to produce? The author many years of experience, to tell you bearing ring surface of the common quality problems and the cause. Causes: 1, the surface roughness is bad superfinishing didn't have enough time, stone pressure is too high, millstone vibration frequency is relatively high, the essence of superfinishing workpiece speed is too low. 2, superfinishing tumor after superfinishing in machining surface convex particles of different sizes, shapes, and this is mainly due to the grinding particles under the action of high temperature and high pressure sintering in a flash in the processed surface, it increases the bearing vibration value, reduce the service life of bearing. Reason: the millstone pressure is too high. Superfinishing before surface roughness value is too high, high rotating speed, cutting lubricating liquid cooling is not sufficient, the remanent magnetism of bearing ring grinding is big. After 3, silk superfinishing processed surface mesh scratches. Causes: grindstone too many impurities, particle size is not uniform; Cutting fluid has impurities, insufficient rinsing. 4, coma galaxy superfinishing process, because the individual is bigger on the surface of the diamond particles fall off or blockage in the dips, with superfinishing pressure and the rotation of the workpiece forming coma galaxy. Causes: correct selection of stone, lower millstone. 5, grinding wheel causes: when processing surface grinding wheel is too coarse, coarse superfinishing when the workpiece speed is too high, coarse superfinishing time too short, coarse superfinishing grindstone when pressure is too small, millstone pendulum Angle is too small. 6, transverse axial momentum is too big reason, artifacts of eccentricity is too small, lead to workpiece rotational instability, radial circular runout, millstone oscillation center and artifacts of raceway curvature center is not coincidence, workpiece positioning end bearing surface have sundry, cause transverse axial momentum is too large, geometry precision grinding process is bad, workpiece after a lot of repair. 7, roundness, waviness bad causes: artifacts of eccentricity is too small; Fine superfinishing workpiece rotational speed is too large, machine tool vibration caused by; Stone width is not enough, Angle is too small. Roller bearing Angle when positioning is too small to drive normal ring spinning; Roundness, large ripple through the grinding process. After 8, ball bearing raceway superfinishing raceway curvature causes: bad oscillation center and the raceway curvature center misalignment: millstone width is too large, the Angle is too large. If you are more than HRB bearing the author introduces the bearing inspection and replacement of interest or have any questions, please click on the website on the right side of the online customer service or call:, you close the way of jiaxing bearing purchasing advisors. - - - - - - Editor: jiaxing bearing sourcing consultant LTD. All rights reserved, The company) Reprint please indicate the source