Cylindrical roller bearing
1) The scope of processing :
Single row cylindrical roller bearing:φ120~φ2500mm
Double row cylindrical roller bearing: φ120~φ2500mm
Four row cylindrical roller bearing: φ120~φ1500mm
2) Characteristics:
The roller and raceway surface of the cylindrical roller bearing is line contact , so the bearing has high carrying radial load capacity, applicable to carrying heavy load and shock load. Besides, owing to its structure ,it’s easy to high accuracy processing ,applicable to high-rate rotary.
Inner ring and outer ring are separable , convenient for mounting and dismounting.
3) Examples of specifications:
单列圆柱滚子轴承Single row cylindrical roller bearing
外形尺寸mm
Boundary designations
基本额定负荷kN
Basic load ratings
极限转速rpm
Speed ratings
轴承型号
Designations
轴径mm
Shaft diameter
重量Kg
Weight
其它尺寸
Other dimensions
安装相关尺寸mm
Abutment and fillet dimensions
d
D
B
r
(min
r1
(min
dyc
Cr
stc
Cor
脂润滑
Grease
油润滑Oil
现用型号
Current
Designations
原用型号
Old Designations
d1
D1
E
F
da
(min)
Da
(max)
Db
min
ra
(max)
rb
(max)
120
240
80
3
3
477
408
2400
3200
NJ3224X3M
42724QT
120
17.8
162
194
 
150
134
226
 
2.5
2.5
120
260
86
3
3
285
1020
1900
2400
NU2324EM/YA1
32624EHY
120
23.8
 
219
 
154
134
246
 
2.5
2.5
130
280
93
4
4
920
1230
1800
2200
NU2326EM
 
130
28.8
 
236
 
167
148
262
 
3
3
160
290
48
3
3
493
665
1900
2300
NU232EQ1/P63S0
3E32232EQT
160
14.6
 
250
 
195
174
276
 
2.5
2.5
200
310
34
2
2
280
300
1900
2400
N040H
7002140W
200
10.2
243
 
277
 
211
 
283
2
2
300
460
74
4
4
1000
1660
1200
1500
N1060
 
300
44
353
407
420
 
318
 
423
3
3
400
650
145
6
6
2907
5429
750
900
N2180
2002780
400
190
492
 
585
 
428
 
612
5
5
700
930
160
6
6
3450
8400
500
600
NU6/700
327/700
700
295
 
845
 
760
728
902
 
5
5
1200
1520
185
7.5
7.5
5277
10223
200
260
NU 6/1200
329/1200
1200
815
 
1410
 
1280
1236
1484
 
6
6
1600
1950
155
7.5
7.5
6174
17694
150
180
NU 18/1600
10328/1600
1600
1059
 
1818
 
1695
1636
1914
 
6
6
 
 
双列圆柱滚子轴承Double row cylindrical roller bearing
外形尺寸mm
Boundary designations
基本额定负荷kN
Basic load ratings
极限转速rpm
Speed ratings
轴承型号
Designations
轴径mm
Shaft diameter
重量Kg
Weight
其它尺寸
Other dimensions
安装相关尺寸mm
Abutment and fillet dimensions
d
D
B
r
(min
dyc
Cr
stc
Cor
脂润滑
Grease
油润滑Oil
现用型号
Current
Designations
原用型号
Old designations
F
E
da
(min)
da
(max)
Da
max
Da
(min)
ra
(max)
140
210
53
2
308
539
3800
4300
NN3028
 
140
6.56
 
192
150
 
200
194
2
160
240
60
2.1
446
776
3400
3800
NN3032K/W33
 
160
9.18
 
223
171
 
229
221
2
180
270
120
2.1
815
1570
2000
2600
NNU4136X3
 
180
24
202
 
190
199
259
248
2
200
280
80
2.1
480
1040
1900
2400
NN4940K
4182940
200
14.1
 
259
211
222
269
264
2
240
400
160
4
1900
3600
1600
1400
NNU4148M
4482748H
240
81.8
282
 
256
278
384
 
3
300
460
118
4
1280
2430
1700
1900
NN3060
 
300
71.5
 
418
316
 
444
421
3
400
600
148
5
2140
4420
1200
1400
NN3080/W33
 
400
150
 
549
420
 
580
533
4
500
670
170
5
2360
6200
700
850
NNU 49/500/YA
44829/500
500
166
548
 
520
548
650
 
4
600
820
287.5
5
6080
16600
530
630
NNU6/600/HC
 
600
470
660
 
620
651
805
 
5
670
980
230
7.5
4890
10400
670
750
NN 30/670 Kf1
31821/670W
670
597
 
900
704
 
946
907
6
 
 
 
 
 
四列圆柱滚子轴承Four row cylindrical roller bearing
外形尺寸mm
Boundary designations
基本额定负荷kN
Basic load ratings
重量Kg Weight
轴承型号
Designations
其它尺寸
Other dimensions
d
D
B
F
r
(min
r1
(min
dyc
Cr
stc
Cor
现用型号
Current
Designations
原用型号
Old Designations
da
(min)
Da
(min)
Da
max
ra
(max)
280