Deere universal joint bearing type metallurgy bearing: the Great Wall

Generally speaking, the choice of bearing steps may be summarized as:, when bearing the radial and axial load, a selection of angular contact ball bearing or tapered roller bearing. Originated from the surface fatigue spalling reason, there are two situations: because of the raw materials in smelting and bearing parts forging, stamping, heat treatment and cold working process, the residue on the surface of non-metallic inclusion, rough granular carbides, pores, wrinkles, pit and metamorphic layer on the surface of the factors, such as in the process of bearing operation, due to the effect of contact stress, cause they take off, away from the mother or for plastic deformation caused by the microporous gathered an enlarged flake form. Look from the use of oil and gas lubrication system work is normal, the lubrication effect is good; Test run because of work roll bearing oil discharge hole location problems caused by loss of work roll bearing, but in not again after the modification of the design of the bearing lubrication bad phenomenon; Work site clean, removed between grinding roller bearings, bearings are very clean. Use of polymer composite materials with repair mold ( See figure at the scene to repair worn parts, in order to improve the mold repair precision is not used before, but to protect repair effect with the redesigned for repair mold, precision precision limited warranty repair. Bainite influence on bearing life characteristics of bainite organization will increase the proportion of carbon and chromium bearing steel, bending strength, yield strength and reduction of area, improve the bearing steel resistance toughness, impact, fracture force, enhance bearing friction ability, good stability at the same time also help bearing size. Like this, remove the dust cover, we flip bearing, to start from the back, this shows that the thickness of oxide layer, is directly related to the grinding process is an important symbol of grinding quality. Below yida bohai embellish petrochemical simple introduce new bearing grinding process what are the characteristics: the characteristics of the new type of bearing grinding high-speed bearing grinding technology of high speed grinding can realize two goals of modern manufacturing technology to improve the quality and efficiency, and in high speed grinding wheel in addition to should have sufficient strength, also need to keep good performance of grinding can obtain high grinding effect. Process: use A feeler journal and bearing parallelism, same thickness of feeler insert position as shown, insert depth difference shall meet the following criteria: ∣ A minus B∣≤mm; ∣A- C∣≤mm; t∣C- D∣≤mm; ∣B - D∣≤mm。 External cause we keep frame fracture failure of the common model, the solution can by improving the lubricant or improving the lubrication method, strengthen the sealing mechanism, such as creep phenomenon is caused by failure of cage, the causes of abrasion are mainly high speed light load, sharp deceleration, lubricant is not appropriate, water, etc. Mm ~, because burn holes ring existed, burnt tissue destroyed the grain boundary, greatly divided the continuity of matrix, reduce the strength of the material and the plastic, increase brittleness. Ball balllot assuming the same manufacturing conditions of fixed number of balls, and is considered as a whole, the level of ball ballgrade ball size, shape, surface roughness and the particular combination of differential gauge value. Bearing the damage of bearing is wear, fatigue and corrosion damage form, bearing the operation and maintenance in normal operation condition of diesel engine, bearing wear is inevitable.