NTN - Large Bearings
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Multi-Row Cylindrical Roller <strong>Bearings</strong><br />
B<br />
r<br />
B<br />
r<br />
r<br />
r<br />
D<br />
d FW<br />
d<br />
D<br />
Ew<br />
d<br />
d<br />
d 100180mm<br />
Type NNU<br />
Tapered bore<br />
Cylindrical bore<br />
taper 1:12<br />
Type NN<br />
Tapered bore<br />
Cylindrical bore<br />
taper 1:12<br />
Boundary dimensions Basic load ratings Bearing numbers<br />
dynamic static dynamic static<br />
mm kN kgf type NNU type NN<br />
Cylindrical tapered Cylindrical tapered<br />
d D B<br />
2<br />
r s min C r C or C r C or bore bore 1 bore bore 1<br />
100<br />
105<br />
110<br />
120<br />
130<br />
140<br />
150<br />
160<br />
170<br />
140 40 1.1 131 260 13,300 26,500 NNU4920 NNU4920K NN4920 NN4920K<br />
150 37 1.5 153 256 15,600 26,100 NN3020 NN3020K<br />
145 40 1.1 133 268 13,500 27,400 NNU4921 NNU4921K NN4921 NN4921K<br />
160 41 2 198 320 20,200 33,000 NN3021 NN3021K<br />
150 30 1.1 107 206 10,900 21,000 NN3922 <br />
150 40 1.1 137 284 14,000 28,900 NNU4922 NNU4922K NN4922 NN4922K<br />
170 45 2 229 375 23,300 38,000 NNU3022 NNU3022K NN3022 NN3022K<br />
165 45 1.1 183 360 18,700 37,000 NNU4924 NNU4924K NN4924 NN4924K<br />
180 46 2 233 390 23,700 40,000 NNU3024 NN3024 NN3024K<br />
180 37 1.5 169 315 17,300 32,000 NN3926 NN3926K<br />
180 50 1.5 220 440 22,400 45,000 NNU4926 NNU4926K NN4926 NN4926K<br />
200 52 2 284 475 29,000 48,500 NNU3026 NN3026 NN3026K<br />
210 64 2 340 560 35,000 57,000 NN3126 <br />
190 37 1.5 175 335 17,800 34,000 NN3928 <br />
190 50 1.5 227 470 23,100 48,000 NNU4928 NNU4928K NN4928 NN4928K<br />
210 53 2 298 515 30,500 52,500 NNU3028 NN3028 NN3028K<br />
210 45 2 256 475 26,100 48,500 NN3930 <br />
210 60 2 345 690 35,000 70,500 NNU4930 NNU4930K NN4930 NN4930K<br />
225 56 2.1 335 585 34,000 60,000 NNU3030 NN3030 NN3030K<br />
225 75 2.1 435 825 44,500 84,000 NN4030 <br />
250 80 2.1 555 900 56,500 92,000 NNU3130 <br />
220 45 2 265 505 27,000 51,500 NN3932 NN3932K<br />
220 60 2 355 740 36,500 75,500 NNU4932 NNU4932K NN4932 NN4932K<br />
240 60 2.1 375 660 38,000 67,500 NN3032 NN3032K<br />
230 45 2 268 520 27,400 53,000 NN3934 NN3934K<br />
230 60 2 360 765 37,000 78,000 NNU4934 NNU4934K NN4934 NN4934K<br />
260 67 2.1 440 775 45,000 79,000 NNU3034 NNU3034K NN3034 NN3034K<br />
280 88 2.1 635 1,050 65,000 107,000 NNU3134 NN3134 <br />
180 250 52 2 340 665 35,000 67,500 NN3936 NN3936K<br />
250 69 2 460 965 46,500 98,500 NNU4936 NNU4936K NN4936 NN4936K<br />
1 "K" indicates bearings have tapered bore with a taper ratio of 1: 12. 2 Smallest allowable dimension for chamfer dimension r.<br />
B-56
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