NNU4968圆柱滚子轴承LYDZC生产的圆柱滚子轴承结构分为：单列圆柱滚子轴承，双列圆柱滚子轴承，三列圆柱滚子轴承，四列圆柱滚子轴承NNU4968圆柱滚子轴承，结构为双列圆柱滚子轴承，保持器为整体铜保，材质采用优质轴承钢，渗碳钢，用途：主要适用于冷热轧机、开坯机等重型机械的工作辊和支承辊。销售电话：0379-64850932移动电话：13700810892QQ:1109262862邮箱：lydzzc@网址：生产工艺：图纸确认--锻件定制--热处理退火--时效处理--车加工--热处理HRC60--稳定处理--初磨--稳定处理--渗碳--半精磨--稳定处理--终磨--成品检验--包装--发货LYDZC双列圆柱滚子轴承特点：双列圆柱滚子轴承，有圆柱形内孔和圆锥形内孔两种结构。该类轴承具有结构紧凑、刚性大、承载能力大、受力后变形小等优点，特别适用于机床主轴支承。分类：它分为NN型和NNU型两种结构形式。结构：NN型轴承为内圈双挡边而外圈无挡边，NNU型轴承则为外圈双挡边而内圈无挡边，这两种轴承均不限制轴与外壳间的相对轴向位移用作非定位轴承。产品型号：尺寸Dimension(mm)重量额定负荷Ratedload(KN)极限转数limitingspeed(r/min)型号dDBrminFEWeight(kg)CrCor脂grease油oilType100140401.11131371.8812524443005100NNU4920150371.5--14624540004800NN3020105145401.11181461.9613227041004800NNU4921160412--2.9619231038004100NN3021110150401.11231552.0413225839004600NNU4922170452--3.7622636536004300NN3022120165451.1134.51652.7617032836004200NNU4924200801.11214111--------NNU4124180462--4.123239033003900NN3024130180501.51461823.7918736833003900NNU4926200522--6.0428447531003600NN3026140190501.51561924.1118839430003600NNU4928210532--6.4829751528003300NN3026150210602168.52066.232565528003300NNU4930225562.1--7.8833057026003100NN3030160220602178.52196.5333065326003100NNU4932240602.1--9.5736963525002900NN3032170230602188.52366.8533667225002900NNU4934260672.1--1344077523002700NN303418025069220225510.238083023002700NNU4936280742.1--1756199422002600NN303619026069221226510.640285622002600NNU4938290752.118580104020002400NN3038200280802.122528214.9484101021002400NNU4940310822.123644114019002300NN3040220300802.124531016.2510114019002200NNU494434090332.9800146017002100NN3044240320802.126533017.4528116017002000NNU4948400160428285.0--------NNU4148360923----835168816001900NN30486202435442285--------NNU41762603601002.136436430.2745180016001800NNU49524401044110--------NNU41524001044481020191015001700NN30522803801002.131238432.2764171014001700NNU49564601805326120--------NNU41564201064--51.71080206013001600NN30563004201183339418501020230013001500NNU49605002005351155--------NNU41604601184--71.51250237012001500NN3060320440118335943852.71060243012001400NNU49645402185375200--------NNU41644801214--77.21320258011001300NN30643404601183379--58.51100258011001300NNU496852018043851401650318011001300NNU30683604801183399--611120269011001300NNU49726002435422275----10001200NNU41723804801001.5/2.1411--4411202870----NNU4876520140442691.51450350010001200NNU49764005401404446--92.5147036809401100NNU49804205201001.5/2.1451--4811703180----NNU4884560140446699151038309001100NNU49847002806497----------NNU41844406001604490--140205049708501000NNU49884605801183497--7511903050----NNU4892620160451013222205850800950NNU49924806001183518--78--------NNU48966501705534--16522805900770910NNU49967903087.5557--603681013820----NNU41965006701705554--17523305890730860NNU49/5005307101805588--21028607450650850NNU49/5307802506591--420--------NNU40/5305607501905623--24531408370----NNU49/5608202586626--420--------NNU40/5606008002005666--29035809750----NNU49/6009803757.5699--1100--------NNU41/6006308502186704--370383510700550750NNU49/6306709002306738--430495013100----NNU49/6707109502436782--500539014700----NNU49/7107509201705803--245--------NNU48/75010002506831--540550015300----NNU49/7508009801805861--29528608560----NNU48/80010602586884--615583016200----NNU49/800)