Jiaxing bearing | parse failure form of GCr15 bearing steel

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 steel under the combination of complex factors, bearing damage occurred after running quite a time. The main form of damage has two kinds: one kind is contact fatigue damage, in the role of high contact stress, after repeated stress cycle, the working face local produce pits, increased bearing work noise, vibration, temperature, wear, lead to bearing will not operate properly. Another is caused by the relative activity of abrasion damage. Rolling bearing damage form is usually normal fatigue spalling. Fatigue failure of bearing steel including the emergence and development of fatigue crack two process. The initial fatigue crack produced in certain depth from the surface, the depth is consistent with the maximum shear stress in depth. For the average size of bearing, with load is different, the maximum shearing stress should appear in the interface is about 0. 350. A deep between 55 mm. The area of metal under the effect of maximum shear stress, plastic deformation occurred in the first place. If the contact stress is greater than the material of contact fatigue limit, then with the increase of stress cycles, ongoing plastic deformation has occurred plastic deformation, and due to plastic deformation to produce fatigue crack here. Under normal circumstances, the micro cracks on the surface is roughly 45 & deg; The Angle. In rolling bearing contact fatigue spalling crack on the trajectory under repeated stress is gradually expanding, usually stress distribution along the internal organization and material composition and uneven regional development, and extend to the surface, from the base of crack fracture and fatigue spalling. If you are more interested in jiaxing bearing group co. , LTD. The author introduces the information or have any questions, please click on the website on the right side of the online customer service or call:, you full close jiaxing bearing purchasing consultant company. - - - - - - Editor: jiaxing bearing sourcing consultant LTD. All rights reserved, The company) Reprint please indicate the source