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ZWA Double-row Cylindrical Roller Bearing

Double-row Cylindrical Roller Bearing

BORE 200-260mm

Double-row cylindrical roller bearing has cylindrical and tapered hole (code K) two structures. There are two main types in ZWA :NNU design and NN design. N Double inner rib and no outer rib. NNU type design inner ring without baffle and outer ring with double baffle. The tapered hole structure can adjust the radial clearance during installation.

Basic Type

double-row cylindrical roller bearing
double-row cylindrical roller bearing
double-row cylindrical roller bearing
double-row cylindrical roller bearing

the products include

Double-row Cylindrical Roller Bearing
d 200-260mm
Basic Size Basic load rating Designation(Design) Abutment and chamfer dimensions Mass
d D B rsmin FW EW dynamic static Cylindrical bore Tapered bore da(2) d1a dc min Da ra max
C Co
mm kN mm kg
200 280 60 2.1 - 259 420 815 NN3940 NN3940K 216 221 - 263 2 10.6
200 280 80 2.1 - 259 570 1220 NN4940 NN4940K 216 222 - 263 2 15.3
200 280 80 2.1 225 - 570 1220 NNU4940 NNU4940K 216 222 228 263 2 15.3
200 310 82 2.1 - 282 655 1170 NN3040 NN3040K 216 223 - 293 2 22.7
200 310 82 2.1 232 - 655 1170 NNU3040 NNU3040K 216 223 237 293 2 22.9
200 310 109 2.1 - 282 890 1730 NN4040 NN4040K 216 225 - 293 2 30.4
220 300 60 2.1 - 279 440 895 NN3944 NN3944K 236 241 - 283 2 11.4
220 300 80 2.1 - 279 600 1330 NN4944 NN4944K 236 242 - 283 2 16.6
220 300 80 2.1 245 - 600 1330 NNU4944 NNU4944K 236 242 248 283 2 16.6
220 340 90 3 - 310 875 1610 NN3044 NN3044K 238 246 - 320 2.5 29.6
220 340 90 3 254 - 815 1480 NNU3044 - 238 - 259 320 2.5 30
220 340 118 3 - 310 1190 2400 NN4044 NN4044K 238 248 - 320 2.5 39.8
220 370 120 4 - 331 1050 1810 NN3144 - 241 - - 346 3 51.9
220 370 120 4 263 - 1050 1810 NNU3144 - 241 - 268 346 3 52.3
240 300 60 1.1 - 283 405 1030 NN4848 - 252 - - 287 1 9.77
240 320 60 2.1 - 300 460 975 NN3948 NN3948K 257 262 - 302 2 12.2
240 320 80 2.1 - 265 630 1470 NN4948 NN4948K 257 263 - 302 2 17.9
240 320 80 2.1 265 - 625 1470 NNU4948 NNU4948K 257 262 269 302 2 18
240 360 92 3 - 330 885 1690 NN3048 NN3048K 259 266 - 340 2.5 32.7
240 360 92 3 274 - 855 1600 NNU3048 NNU3048K 259 266 280 340 2.5 30.8
240 360 118 3 - 330 1240 2600 NN4048 NN4048K 259 269 - 340 2.5 39.3
240 360 118 3 274 - 1240 2600 NNU4048 - 259 - 281 340 2.5 42.7
240 400 128 4 - 358 1170 2040 NN3148 NN3148K 262 272 - 376 3 64.2
260 360 75 2.1 - 335 670 1380 NN3952 NN3952K 277 283 - 342 2 21.4
260 360 100 2.1 - 335 935 2100 NN4952 NN4952K 277 285 - 342 2 28.3
260 360 100 2.1 292 - 760 2030 NNU4952 NNU4952K 273 285 295 347 2 31.1
260 400 104 4 - 364 1140 2200 NN3052 NN3052K 282 291 - 376 3 47.7
260 400 104 4 300 - 1030 1920 NNU3052 - 282 - 306 376 3 48.1
260 400 140 4 - 364 1550 3250 NN4052 NN4052K 282 294 - 376 3 59.7
260 400 140 4 295 - 1550 3250 NNU4052 - 282 - 306 376 3 65
260 440 144 4 - 393 1480 2660 NN3152 NN3152K 282 294 - 415 3 89.1

Targeting at producing high-quality Bearings.

ZWA Chinese best bearing manufacturer

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