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双列圆柱滚子轴承


  • 双列圆柱滚子轴承--NN30...(K)/NNU49...(K)系列,机床主轴对轴承旋转精度的要求极高。高精度圆柱滚子轴承具有高刚性和高承载能力的同时,达到了高转速性能和小横截面高度较好的结合。

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双列圆柱滚子轴承--NN30...(K)/NNU49...(K)系列

机床主轴对轴承旋转精度的要求极高。高精度圆柱滚子轴承具有高刚性和高承载能力的同时,达到了高转速性能和小横截面高度较好的结合。小的横截面高度使多轴装配时轴距更小。由于圆柱滚子轴承能够补偿受热限制的配合部件的长度变化,所以它们是浮动轴承的理想选择。

机床使用的高精度圆柱滚子轴承有多种结构可供选择。尺寸系列1910生产的是单列轴承,而尺寸系列3049生产的是双列轴承。单列和双列圆柱滚子轴承的孔径和外径在各个直径系列范围内完全相同。

双列圆柱.png

主要尺寸型号额定载荷疲劳极限载荷径向刚度转速
重量
动态静态脂润滑油/气润滑
dDBCrCorPUSRnGnOm
mm
KNKNKNN/μmmin-1kg
254716NN 3005NN 3005K26.130.23.1760015.818.60.13
305519NN 3006NN 3006K29.334.14.0168214.217.10.18
356220NN 3007NN 3007K36.244.35.2179512.315.40.248
406821NN 3008NN 3008K45.359.46.9895511.514.30.305
457523NN 3009NN 3009K54.172.28.491.0910.513.20.4
508023NN 3010NN 3010K57.280.19.421.29.511.40.42
559026NN 3011NN 3011K72.3100.511.821.329.010.50.635
609526NN 3012NN 3012K75.2110.613.011.428.510.00.672
6510026NN 3013NN 3013K77.4116.713.721.57.59.00.75
7011030NN 3014NN 3014K98.2150.517.71.657.08.51.05
7511530NN 3015NN 3015K100.5156.318.381.756.77.9.1.1
8012534NN 3016NN 3016K120.5186.321.911.876.57.51.5
8513034NN 3017NN 3017K125.4200.523.5826.27.01.6
9014037NN 3018NN 3018K140.5224.626.422.055.96.8.2.06
9514537NN 3019NN 3019K143.2236.427.812.155.66.5.2.15
10014040NNU 4920NNU 4920K129.425630.1135.66.61.85

15037NN 3020NN 3020K146.8245.328.852.25.36.32.25
10514540NNU 4921NNU 4921K129.4260.330.623.15.46.51.9

16041NN 3021NN 3021K190.3310.536.522.355.06.02.85
11015040NNU 4922NNU 4922K132.527131.883.25.06.32

17045NN 3022NN 3022K220.3360.442.42.524.85.33.62
12016545NNU 4924NNU 4924K176.5340.640.073.34.55.32.7

18046NN 3024NN 3024K232.6390.145.892.754.55.03.95
13018050NNU 4926NNU 4926K190.8391463.64.15.03.8

20052NN 3026NN 3026K290.650158.9434.24.75.8
14019050NNU 4928NNU 4928K191400.947.163.73.94.74.1

21053NN 3028NN 3028K30152261.413.14.04.56.3
15021060NNU 4930NNU 4930K326655.5694.33.74.46.2

22556NN 3030NN 3030K33658661.683.353.74.27.6
16022060NNU 4932NNU 4932K33668171.684.43.54.06.5

24060NN 3032NN 3032K37767270.733.533.54.09.25
17023060NNU 4934NNU 4934K34269673.264.553.33.86.8

26067NN 3034NN 3034K45380284.423.83.23.812.35
18025069NNU 4936NNU 4936K40685189.575.153.13.610

28074NN 3036NN 3036K5731003105.574.053.03.616.5
19026069NNU 4938NNU 4938K40688292.845.352.93.410.5

29075NN 3038NN 3038K5871042109.684.22.83.417.5
20028069NNU 4940NNU 4940K4911042109.685.522.73.214.5

31082NN 3040NN 3040K6571204126.734.452.63.222.3
22030080NNU 4944NNU 4944K5121143120.316.052.53.016

34090NN 3044NN 3044K8031462153.894.82.43.029
24032080NNU 4948NNU 4948K5321203126.636.352.32.817

36092NN 3048NN 3048K8521564164.635.152.22.831.5
260360100NNU 4952NNU 4952K7521705179.477.12.12.629.5

400104NN 3052NN 3052K10622005211.055.72.02.645.8
280380100NNU 4956NNU 4956K76618051907.51.92.231.5

420106NN 3056NN 3056K10852085219.475.91.82.349.55
300420118NNU 4960NNU 4960K10422405253.158.31.82.149
320440118NNU 4964NNU 4964K10622555268.948.81.72.052


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