Support roller bearing roller fracture problem's discussion

Rolling body fracture were provoked by? Everyone a great god, and to help analysis, thank! XiaoYao: suddenly rupture, rolling load any abnormal XiaoYao: what type? Rolling body size and quantity? Xin: return: load size: heavy load time is FCD6890250 bearing type, rolling element 26 mm in diameter, the length of the 44 mm tomorrow: what bad little lowe: look like has tired, do not do crystal like years: xiaowen: smooth bad form years: certainly not smooth problem little lowe: light, so I feel or fatigue crack years: this is the second column little lowe: material may also question time: I don't approve of fatigue crack, if tired, outer slide would have bad. But now the way anything no little lowe: this break is very good ah, you have the conditions to do the crystal like in tomorrow: small xin: forging of time, there is a hole or data exists impurities: tomorrow see bearing area years: excuse me rolling plate screw bearing and bearing of rolling strip on the material tomorrow: is there a difference? Work roll bearings and back-up roller bearing years: supporting roller little lowe: hot rolled steel strip now support rollers are a lot of oil film bearing tomorrow: and then see if we can both end roller badly worn, or a badly worn years: bearing area and normal central had no difference, appearance is very lubrication, cross section is no wear and tear, is chamfering in creasing tomorrow: this is a short time damage? Adhere to the frame? Time: it could be broken fragments from years: the insist there is no bad no deformation. Recently have a lot of stick to stand half distance of tooth and small xin: feel or material and forging technology, vague is too large, carbon and nitrogen ratio control is bad. Nature is hard to accept too much load. Years: the rolling bearing manufacturer giving you the wrong dish of screw bearing, steel strip to us here, xiao zhang: I suspect this is rolling disc screw bearing material made of rolling strip steel bearing materials with different provoked xiao wu: you'd better confirm with manufacturer under two kinds of bearings are of the same material, the same quality level, if not, you are faced with the problem of batch, if be, things may be occasionally, will also be able to accept it