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>FAG 1309K+H309-aligning ball bearings




FAG bearing names 1309K+H309
New model 1309K+H309
Older model 11,308
Inner diameter d (mm) 40
Outer diameter d (mm) 100
B thickness (mm) 25
Brand model number 1309KTV+H309
Brand FAG
Category-aligning ball bearings
Detailed self-aligning ball bearings with adapter sleeve (10000 K+H-0000)
FAG bearings refers to quenching process of quenching crack in quenched at room temperature or place cracks developed in the process. Who called crack in aging. Quenching crack caused for many reasons, at the time of analysis of quenching cracks should be differentiated according to the characteristics of crack.
, Characteristics of quenching crack in quenching process, when quenching enormous stress is greater than the strength of the material itself, it can lead to cracks. Quenching cracks tend to be in the Martensitic transformation began shortly after, distribution of crack is not some sort of order, but generally easy in formed workpiece edges and notches, section mutations. Surface decarburization of high carbon steel workpiece, after quenching, easy to form a reticular cracks. This is because the surface decarburization layer in the quenching of volume swells than decarbonization of small, Center expansion of surface material and tension crack is meshed.
Second, non-hardening characteristics of crack quench cracks that occur after, are not necessarily caused by quenching, can generally be differentiated according to the following characteristics. Therefore, oxidation and decarbonization phenomena of quenching crack of crack is a FAG bearings. If the crack in quenched existed before, without looking into the surface, no oxidation and decarbonization of internal crack, crack lines appear soft and end round bald quenching crack lines easily with vigorous and strong, distinguish between the characteristics of the rear end of the tapered.
When carbides in the microstructure of steel when the heap, where carbon and alloy element content is quite high, resulting in lower critical temperature. Therefore, even at normal temperatures and quenching heating, heaps of carbide, heating temperature is too high. Overheating as a result of these places the Organization, reducing the strength of steel, while quenching and stress cracking. Nonuniformity of carbide of high-speed steel is one of the important indicators of quality of this steel.
 

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