Single Row Radial Needle Roller Bearing K , NA , NKI , RNA , NK , HK , BK

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Needle roller bearing Itis a bearing which uses small cylindrical rollers. They are used to reduce friction of a rotating surface. Needle bearings have a large surface area that is in contact with the bearing outer surfaces compared to ball bearings . Additionally there is less added clearance (difference between the diameter of the shaft and the diameter of the bearing) so they are much more compact. The typical structure consists of an inner race (or sometimes merely a shaft), a needle cage which orients and contains the needle rollers, the needle rollers themselves, and an outer race. Radial needle bearings are cylindrical and use rollers parallel to the axis of the shaft. Thrust needle bearings are flat and use a radial pattern of needles. Needle bearings are heavily used in engine components such as rocker arm pivots Needle roller bearing ,there is a series number of this product, and we can process as your requirement. Detailed technical parameter as follow: KR KRV??Dimensions (mm)Designations*CD1D1G1B max.B1max.B2B3C1rs monocentric (e)Basic load rating??Limits of speed (rpm)Mass (g)Dynamic Ecstatic Coker 13KRV 131395M50.87102313??0.50.30.252801802900016KR 16KRV 1616116M61812.228.216??0.60.30.252701702500018KR 19KRV 1919118M81.251012.232.220??0.60.30.253002102000028KR 22KRV 22221210M101.251213.236.223??0.60.30.34103201700044KR 26KRV 26261210M101.251213.236.223??0.60.30.34103201700058KR 30KRV 30301412M121.51315.240.22560.60.60.35904501400087KR 32KRV 32321412M121.51315.240.22560.60.60.35904501400090KR 35KRV 35351816M161.51719.652.132.580.80.60.3585076010000169KR 40KRV 40402018M181.51921.658.236.580.810.35118012208500247KR 47KRV 47472420M201.52125.666.140.590.810.35163016907000386KR 52KRV 52522420M201.52125.666.140.590.810.351630169070000461KR 62KRV 62622924M241.52530.680.149.5110.810.4216022106500790KR 72KRV 72722924M241.52530.680.149.5110.810.42160221065001040KR 80KRV 80803530M301.532371006315110.52830370050001550KR 85KRV 85853530M301.532371006315110.52830370050001740KR 90KRV 90903530M301.532371006315110.52830370050001950 2) Package: export standard package or according to requirement. 3):Widely used in sewing machines, various gap-cars, fitness equipment, cars, motors, electric tools, entertainment tools, textile and printing machines, and also in engineering, hydraulic cylinders, forging machines, construction machinery. - - - - | Bearing Designation | Mass Approx | Boudary Dimensions | Basic Load Rating | Limiting Speed | | | Shaft Diameter | Structure | Original Code | d | Fw | D | C | Cr Dynamic | Cor Static | Oil | | mm | NKI | NKIS | NA49 | NA69 | g | mm | N | rpm | | 8 | - | NKIS 8 | - | - | - | 46 | 8 | 14 | 25 | 16 | 1240 | 11300 | 21500 | | 9 | NKI 9/12 | - | - | - | - | 14.6 | 9 | 12 | 19 | 12 | 6200 | 7002 | 21700 | | 10 | NKI 10/16 | - | - | - | - | 27.3 | 10 | 14 | 22 | 16 | 9808 | 10500 | 19650 | | - | - | NA 4900 | - | 4524900 | 21 | 10 | 14 | 22 | 13 | 8006 | 9000 | 23700 | | - | | - | NA 6900 | 6534900 | 38.4 | 10 | 14 | 22 | 22 | 8281 | 11612 | 23700 | | | NKI 12/20 | - | - | - | - | 39 | 12 | 16 | 24 | 20 | 14000 | 18400 | 21000 | | - | - | - | NA 6901 | 6534901 | 44.5 | 12 | 16 | 24 | 22 | 11647 | 17052 | 20000 | | - | NKIS 12 | - | - | - | 58 | 12 | 18 | 30 | 16 | 16000 | 17000 | 20000 | | 15 | NKI 15/16 | - | - | - | - | 38 | 15 | 19 | 27 | 16 | 8847 | 12853 | 19100 | | NKI 15/20 | - | - | - | - | 45.7 | 15 | 19 | 27 | 20 | 12347 | 19053 | 19100 | | - | - | NA 4902 | - | 4524902 | 32 | 15 | 20 | 28 | 13 | 6447 | 9053 | 18800 | | - | - | - | NA 6902 | 6534902 | 61.6 | 15 | 20 | 28 | 23 | 13100 | 20900 | 18800 | | - | NKIS 15 | - | - | - | 90 | 15 | 22 | 35 | 20 | 23500 | 24000 | 17000 | | 17 | NKI 17/16 | - | - | - | - | 41.4 | 17 | 21 | 29 | 16 | 13000 | 18200 | 20000 | | NKI 17/20 | - | - | - | - | 52.3 | 17 | 21 | 29 | 20 | 17100 | 25000 | 21000 | | - | - | NA 4903 | - | 4524903 | 32.8 | 17 | 22 | 30 | 13 | 7010 | 10010 | 17000 | | - | - | - | NA 6903 | 6534903 | 68.2 | 17 | 22 | 30 | 23 | 14400 | 24900 | 17000 | | 20 | NKI 20/16 | - | - | - | - | 48.5 | 20 | 24 | 32 | 16 | 10800 | 17000 | 16700 | | - | - | NA 4904 | - | 4524904 | 70.2 | 20 | 25 | 37 | 17 | 11912 | 16594 | 16200 | | - | NKIS 20 | - | NA 6904 | 6534905 | 119 | 20 | 28 | 42 | 20 | 26500 | 35500 | 14000 | | 22 | NKI 22/16 | - | - | - | - | 50 | 22 | 25 | 34 | 16 | 10200 | 15340 | 16200 | | - | - | NA 49/22 | - | - | 76 | 22 | 28 | 39 | 17 | 12996 | 19175 | 14360 | | - | - | - | NA 69/22 | - | 130 | 22 | 28 | 39 | 30 | 21375 | 35750 | 14360 | | | NKI 25/20 | - | - | - | - | 101 | 25 | 29 | 38 | 20 | 21900 | 24000 | 14000 | | 25 | NKI 25/30 | - | - | - | - | 115 | 25 | 29 | 38 | 30 | 31500 | 56000 | 14000 | | - | - | NA 4905 | - | 4524905 | 76 | 25 | 30 | 42 | 17 | 13452 | 20475 | 14000 | | - | - | - | NA 6905 | 6534905 | 138 | 25 | 30 | 42 | 30 | 19300 | 31750 | 14000 | | - | NKIS 25 | - | - | - | 160 | 25 | 32 | 47 | 22 | 32000 | 55000 | 12500 | | | NKI 28/20 | - | - | - | - | 132 | 28 | 32 | 45 | 20 | 23100 | 37500 | 11400 | | 28 | NKI 28/30 | - | - | - | - | 162 | 28 | 32 | 45 | 30 | 32500 | 42000 | 12500 | | - | - | NA 49/28 | - | 45449/28 | 90.7 | 28 | 32 | 45 | 17 | 13900 | 20100 | 12500 | | - | - | - | NA 69/28 | - | 170 | 28 | 32 | 45 | 30 | 22400 | 36850 | 12500 | | 30 | NKI 30/20 | - | - | - | - | 145 | 30 | 35 | 45 | 20 | 24000 | 32000 | 12000 | | NKI 30/30 | - | - | - | - | 171 | 30 | 35 | 45 | 30 | 29000 | 36000 | 11000 | | - | NKIS 30 | - | - | - | 184 | 30 | 37 | 52 | 22 | 31000 | 39000 | 12000 | | - | - | NA 4906 | - | 4524906 | 101 | 30 | 35 | 47 | 17 | 25000 | 34000 | 11000 | | - | - | - | NA 6906 | 6534906 | 192 | 30 | 35 | 47 | 30 | 40500 | 63000 | 11000 | | 32 | NKI 32/20 | - | - | - | - | 101 | 32 | 35 | 45 | 20 | 13851 | 26900 | 12000 | | NKI 32/30 | - | - | - | - | 122 | 32 | 35 | 45 | 30 | 18000 | 42000 | 12000 | | - | - | NA 49/32 | - | 45449/32 | 150 | 32 | 40 | 52 | 20 | 19000 | 32600 | 11000 | | - | - | - | NA 69/32 | 66349/32 | 272 | 32 | 40 | 52 | 36 | 25500 | 68500 | 11000 | | 35 | NKI 35/20 | - | - | - | - | 139 | 35 | 40 | 50 | 20 | 21000 | 41000 | 11000 | | NKI 35/30 | - | - | - | - | 165 | 35 | 40 | 50 | 30 | 22200 | 51350 | 11000 | | - | - | NA 4907 | - | 4524907 | 151 | 35 | 42 | 55 | 20 | 19800 | 41500 | 11000 | | - | - | - | NA 6907 | 6534907 | 301 | 35 | 42 | 55 | 36 | 26000 | 60500 | 11000 | | - | NKIS 35 | - | - | - | 210 | 35 | 43 | 58 | 22 | 33000 | 56000 | 9500 | | 38 | NKI 38/20 | - | - | - | - | 136 | 38 | 43 | 53 | 20 | 27000 | 49000 | 11000 | | NKI 38/30 | - | - | - | - | 207 | 38 | 43 | 53 | 30 | 38000 | 69000 | 11000 | | 40 | NKI 40/20 | - | - | - | - | 124 | 40 | 45 | 55 | 20 | 22000 | 48000 | 11000 | | NKI 40/30 | - | - | - | | 184 | 40 | 45 | 55 | 30 | 35000 | 86000 | 11000 | | - | NKIS 40 | - | - | | 281 | 40 | 50 | 65 | 22 | 39000 | 65000 | 9000 | | - | - | NA 4908 | - | 4544908 | 123 | 40 | 48 | 62 | 22 | 31036 | 63873 | 9000 | | - | - | - | NA 6908 | 6534908 | 401 | 40 | 48 | 62 | 40 | 64000 | 112000 | 9000 | | 42 | NKI 42/20 | - | - | - | - | 138 | 42 | 47 | 57 | 20 | 26000 | 52500 | 9500 | | NKI 42/30 | - | - | - | - | 222 | 42 | 47 | 57 | 30 | 34000 | 69000 | 9000 | | 45 | NKI 45/25 | - | - | - | - | 218 | 45 | 50 | 62 | 25 | 36000 | 70000 | 9000 | | NKI 45/35 | - | - | - | - | 289 | 45 | 50 | 62 | 35 | 41500 | 102000 | 9000 | | - | - | NA 4909 | - | 4544909 | 260 | 45 | 50 | 68 | 22 | 37000 | 69500 | 9000 | | - | - | - | NA 6909 | 6534909 | 479 | 45 | 50 | 68 | 40 | 61500 | 123500 | 9000 | | - | NKIS 45 | - | - | - | 306 | 45 | 55 | 72 | 22 | 43000 | 71000 | 7500 | | 50 | NKI 50/25 | - | - | - | - | 262 | 50 | 55 | 68 | 25 | 32000 | 78000 | 7890 | | NKI 50/35 | - | - | - | - | 350 | 50 | 55 | 68 | 35 | 45000 | 82000 | 7000 | | - | - | NA 4910 | - | 4544910 | 264 | 50 | 58 | 72 | 22 | 41000 | 72000 | 7000 | | - | - | - | NA 6910 | 6534910 | 457 | 50 | 58 | 72 | 40 | 68000 | 135000 | 7000 | | - | NKIS 50 | - | - | - | 510 | 50 | 60 | 80 | 28 | 60000 | 95000 | 7000 | | 55 | NKI 55/25 | - | - | - | - | 280 | 55 | 60 | 72 | 25 | 42000 | 82000 | 6500 | | NKI 55/35 | - | - | - | - | 357 | 55 | 60 | 72 | 35 | 48000 | 126800 | 6500 | | - | - | NA 4911 | - | 4544911 | 386 | 55 | 63 | 80 | 25 | 50600 | 96580 | 6500 | | - | - | - | NA 6911 | 6534911 | 760 | 55 | 63 | 80 | 45 | 82560 | 172000 | 6500 | | - | NKIS 55 | - | - | - | 558 | 55 | 65 | 85 | 28 | 49000 | 96000 | 6500 | | 60 | NKI 60/25 | - | - | - | - | 388 | 60 | 68 | 82 | 25 | 35500 | 85000 | 6500 | | NKI 60/35 | - | - | - | - | 553 | 60 | 68 | 82 | 35 | 58000 | 135000 | 6000 | | - | - | NA 4912 | - | 4544912 | 412 | 60 | 68 | 85 | 25 | 52800 | 11050 | 6000 | | - | - | - | NA 6912 | 6534912 | 798 | 60 | 68 | 85 | 45 | 88500 | 186000 | 6000 | | - | NKIS 60 | - | - | - | 550 | 60 | 70 | 90 | 28 | 65000 | 110000 | 6000 | | 65 | NKI 65/25 | - | - | - | - | 467 | 65 | 73 | 90 | 25 | 45000 | 89000 | 6000 | | NKI 65/35 | - | - | - | - | 649 | 65 | 73 | 90 | 35 | 65000 | 111000 | 6000 | | - | - | NA 4913 | - | 4544913 | 435 | 65 | 72 | 90 | 25 | 57500 | 110500 | 6000 | | - | - | - | NA 6913 | 6534913 | 821 | 65 | 72 | 90 | 45 | 87600 | 194500 | 6000 | | - | NKIS 65 | - | - | - | 641 | 65 | 75 | 95 | 28 | 69000 | 140000 | 6000 | | 70 | NKI 70/25 | - | - | - | - | 521 | 70 | 80 | 95 | 25 | 56000 | 125000 | 5500 | | NKI 70/35 | - | - | - | - | 737 | 70 | 80 | 95 | 35 | 75000 | 150000 | 5500 | | - | - | NA 4914 | - | 4544914 | 712 | 70 | 80 | 100 | 30 | 79000 | 154000 | 5500 | | - | - | - | NA 6914 | 6534914 | 1362 | 70 | 80 | 100 | 54 | 121000 | 263000 | 5500 | | - | NKIS 70 | - | - | - | 865 | 70 | 80 | 100 | 28 | 75000 | 133000 | 5500 | | 75 | - | - | NA 4915 | - | 4544915 | 765 | 75 | 85 | 105 | 30 | 82000 | 158000 | 5500 | | - | - | - | NA 6915 | 6534915 | 1429 | 75 | 85 | 105 | 54 | 128000 | 272000 | 5500 | | 80 | - | - | NA 4916 | - | 4544916 | 870 | 80 | 90 | 110 | 30 | 81000 | 170500 | 5500 | | - | - | - | NA 6916 | 6534916 | 1510 | 80 | 90 | 110 | 54 | 130500 | 280600 | 5000 | | 85 | - | - | NA 4917 | - | 4544917 | 1250 | 85 | 100 | 120 | 35 | 111000 | 237000 | 4600 | | - | - | - | NA 6917 | 6534917 | 2200 | 85 | 100 | 120 | 63 | 166000 | 400000 | 4600 | | 90 | - | - | NA 4918 | - | 4544918 | 1312 | 90 | 105 | 125 | 35 | 114000 | 250000 | 4400 | | - | - | - | NA 6918 | 6534918 | 2310 | 90 | 105 | 125 | 63 | 172000 | 425000 | 4400 | | 95 | - | - | NA 4919 | - | 4544919 | 1371 | 95 | 110 | 130 | 35 | 116000 | 260000 | 4200 | | - | - | - | NA 6919 | 6534919 | 2500 | 95 | 110 | 130 | 63 | 174000 | 440000 | 4200 | | 100 | - | - | NA 4920 | - | 4544920 | 1900 | 100 | 115 | 140 | 40 | 120000 | 274000 | 4000 | | - | - | - | NA 6920 | 6534920 | 3170 | 100 | 115 | 140 | 71 | 190000 | 520000 | 4000 | | 120 | - | - | NA 4922 | - | 4544922 | 2070 | 110 | 125 | 150 | 40 | 132000 | 290000 | 3700 | | - | - | - | NA 6922 | - | 1080 | 110 | 120 | 140 | 30 | 94000 | 216000 | 3900 | | 130 | - | - | NA 4924 | - | 4544924 | 2860 | 120 | 135 | 165 | 45 | 181000 | 390000 | 3400 | | - | - | - | NA 4824 | - | 1170 | 120 | 130 | 150 | 30 | 99000 | 239000 | 3600 | | 140 | - | - | NA 4926 | - | 4544926 | 3900 | 130 | 150 | 180 | 50 | 203000 | 470000 | 3100 | | - | - | - | NA 4826 | - | 1810 | 130 | 145 | 165 | 35 | 118000 | 310000 | 3200 | | - | - | NA 4928 | - | 4544928 | 4150 | 140 | 165 | 190 | 50 | 209000 | 500000 | 2900 | | - | - | - | NA 4828 | - | 1920 | 140 | 150 | 175 | 35 | 120000 | 325000 | 3000 | | - - - -

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ZHEJIANG TOP BEARINGS CO., LTD.

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