d 190-280mm
Product Parameter
Designation X-life Mass
m
≈kg
Principal dimensions
mm
Fitting dimansion
mm
Basic load ratings
KN
Fatigue limit load
Cur/ N
Limiting Speed
nG /min–1
Reference Speed
nB/min–1
d D B r
min
r1
min
s1) E F D1 d1 da
min
da
max
db
min
Da
max
Db
min
Dc
max
ra
max
ra1
max
Dyc
Cr
Stc
Cor
NU252-E-M1 - 68.4 260 480 80 5 5 6.2 429 317 410.8 - 280 314 320 460 - - 4 4 1340000 1900000 154000 2400 1120
NU2252-E-M1 - 109 260 480 130 5 5 10.5 433 313 413.6 - 280 310 316 460 - - 4 4 2160000 3350000 345000 2200 790
NU352-E-M1 - 121 260 540 102 6 6 10 477 337 454.6 - 286 334.3 339.7 514 - - 5 5 1900000 2600000 198000 2000 920
NU2352-EX-M1 - 189 260 540 165 6 6 13.7 484 324 458.4 - 286 321.3 326.7 514 - - 5 5 3100000 4500000 435000 1800 670
NU1056-M1 - 31.3 280 420 65 4 4 7.2 384 316 371.3 - 295 312 321 405 - - 3 3 680000 1100000 96000 2800 1550
NU256-E-M1 - 72.1 280 500 80 5 5 6.3 449 337 430.8 - 300 334 340 480 - - 4 4 1400000 2000000 163000 2200 1040
NU2256-E-M1 - 114 280 500 130 5 5 10.5 453 333 436 - 300 330 336 480 - - 4 4 2280000 3600000 360000 2000 730
NU356-E-M1 - 147 280 580 108 6 6 8.7 512 362 488 - 306 359 366 554 - - 5 5 2160000 3050000 224000 1900 810
NU2356-EX-M1 - 234 280 580 175 6 6 13.8 521 351 493.8 - 306 348 354 554 - - 5 5 3550000 5200000 495000 1600 600
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Introduction
features single row cylindrical roller bearing with cage consists of inner ring, outer ring, cylindrical roller and cage components. Both sides of the outer ring are provided with or without a rigid edge, and the inner ring is provided with one or two rigid edges or without a edge. The cage prevents the rollers from contacting each other during rolling. cylindrical roller bearing with cage has good rigidity and can bear high radial load, and because of the cage, it is more suitable for high-speed situation than the bearing with full design. The bearing with suffix e has higher optimized bearing capacity, so it is suitable for higher load conditions. one ring of this kind of bearing can be disassembled for easy installation and disassembly. The inner and outer rings can be tightly matched. single row cylindrical roller bearing with cage can be used as non positioning, semi positioning and positioning bearing. we can provide bearings of various sizes X-life . These bearings are identified in the dimension table. compared with non X-life bearings, the raceways of X-life bearings have smaller surface roughness R a and higher geometric accuracy. Therefore, the X-life bearing of the same size has higher bearing capacity and longer life. In some applications, this means smaller bearings can be used. floating bearing n and Nu cylindrical roller bearings are floating bearings and can only bear radial force. Nu type bearing outer ring with two ribs, inner ring without ribs. The inner ring of n type bearing has two stops, and the outer ring has no stops. the axial displacement of the inner and outer ring relative to the center position is & ldquo; s & rdquo;, and its value is listed in the dimension table. semi positioning bearing NJ cylindrical roller bearing is half locating bearing. Half locating bearing can not only bear high radial load, but also bear unidirectional axial load, so it can locate the shaft in one direction. In the other direction, it can be used as floating bearing. This type of bearing has two stops on the outer ring and one stop on the inner ring. Nu type floating bearing can be combined with a L type inclined retaining ring HJ to form a half positioning bearing unit. However, it is not allowed to use two L inclined retaining rings at the same time ( there is a risk of jamming ) . the relative axial displacement of the inner and outer rings in one direction is & ldquo; s & rdquo;. See the dimension table for the specific values. NUP type and L type inclined retaining ring HJ type cylindrical roller bearing with NJ type are positioning bearings. positioning bearing can not only bear radial force, but also bear bidirectional axial force, so it can realize bidirectional axial positioning of shaft. NUP type cylindrical roller bearing has two retaining edges on the outer ring, one side of the inner ring has a rigid retaining edge, and the other side has a flat retaining ring. NJ type bearing can be combined with a L type inclined retaining ring HJ to form a positioning bearing unit. The outer ring of this bearing unit has two stops, and the inner ring has one stop, L inclined retaining ring is installed on the side of the inner ring without stop. For the parameters of NJ type bearing, L type inclined retaining ring HJ see the dimension table. Bearings and inclined retaining rings of type L need to be ordered separately.

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