Four-row Cylindrical Roller Bearings

Multi-row or four-row cylindrical roller bearings are primarily designed and used as roll-neck bearings in rolling mills. These four-row cylindrical roller bearings can be open or sealed. The four rows of rollers lend themselves to carrying large radial loads for the bearing cross-section.

Four-row Cylindrical Roller Bearings

Multi-row or four-row cylindrical roller bearings are primarily designed and used as roll-neck bearings in rolling mills. The four rows of rollers lend themselves to carrying large radial loads for the bearing cross-section. These four-row cylindrical roller bearings can be open or sealed. Because they are usually mounted with an interference fit on the roll neck, four-row cylindrical roller bearings are well suited for rolling mill applications where the rolling speed is high. Because four-row cylindrical roller bearings can accommodate only radial loads, they are mounted together with deep groove or angular contact ball bearings or tapered roller bearings (either radial or thrust design), which accommodate the axial loads.

Product parameter

Boundary dimensions
Basic load ratings
Designations
Installation dimension
Mass
mm
kN
mm
d
D
B
FW
rmin
r1min
Cr
Cor
Current
Original
damin Damin Damax ramax rbmax
kg
90
140
70
105
1.5
1.1
222
454
   FC
182870
6727

18

98
126
132
1
1
4.4
100
140
70
111
1.5
1.1
194
416
        FC
202870
6728

20

108
129
135
1
1
3.5
110
150
80
122
1.5
1.1
241
602
       FC
223080
-
4.4
120
180
92
137
2
2
375
820
FC
243692
-
128
165
169
2
1
8.7
130
200
104
149
2
2
478
1006
FC
2640104
-
141
183
189
2
2
12.5
140
210
100
158
2
2
503
1096
FC
2842100
-
151
192
199
1.5
1.5
12.8
145
210
155
166
2
2
720
1560
FC
2942155
-
154
196
201
1
1
20
150
225
120
169
2
2
788
1586
FC
3045120
-
161
207
216
1.5
1.5
17.5
160
230
130
180
2
2
781
1384
FC
3246130
-
171
214
219
1.5
1.5
22.7
170
230
130
188.5
2
2
680
1720
FC
3446130
-
181
215
219
2
2
16.3
180
250
120
200
2.1
2.1
609
1583
FC
3650120
-
191
234
239
2
2
19
180
260
124
202
2.1
2.1
718
1668
FC
3652124
6727

36K

192
242
248
2
2
22.6
190
260
168
212
2.1
2.1
1020
2600
FC
3852168
-
202
244
248
2
2
27.9
200
270
120
222
2.1
2.1
615
1626
FC
4054120
-
212
254
258
2
2
20.8
200
290
130
226
2.5
2.1
840
1975
FC
4058130
-
212
268
278
2
2
29.9
210
290
192
236
2.1
2.1
1300
3400
FC
4258192
-
223
274
277
2
2
40.6
220
300
192
242
2.1
2.1
1085
3310
FC
4460192
-
41.5
230
330
170
260
2.1
2.1
1142
2974
FC
4666170
-
243
306
317
2
2
50.2
240
330
220
264
2.1
2.1
1373
3789
FC
4866220
6727

48

253
308
317
2
2
58.4
250
340
170
274
3
3
1141
3281
FC
5068170
-
47.9
260
360
192
287
3
3
1274
3468
FC
5272192
-
273
335
347
2
2
62.3
270
380
230
298
3
3
1725
4598
FC
5476230
6727

54

283
354
367
2
2
85.3
280
375
200
307
3
3
1480
4311
FC
5675200
6729

56

293
356
367
2
2
65.1
390
240
312
3
3
1763
5235
FC
5678240
-
294
362
376
2.5
2.5
93.4
390
275
308
3
3
2250
6500
FCD
5678275
-
293
363
377
2
2
105.1
290
410
240
320
4
4
2070
5670
FC
5882240
6727

58

304
380
396
3
3
105
300
420
218
332
4
4
2060
5695
FC
6084218
-
314
390
406
2.5
2.5
97
420
240
332
4
4
2225
5750
FCD
6084240
-
314
392
406
3
3
107
420
300
332
3
3
2305
6565
FCD
6084300
-
314
392
406
2.5
2.5
134.7
320
440
240
351
3
3
2120
6101
FC
6488240
-
335
411
425
2.5
2.5
113.9
440
300
352
3
3
2530
7660
FCD
6488300
-
335
409
425
2.5
2.5
142.3
450
240
355
4
4
2145
5860
FCD
6490240
-
335
419
435
2.5
2.5
125.3
460
240
355
4
4
2980
7340
FCD
6492240
-
335
428
445
2.5
2.5
140
330
460
340
365
4
4
3760
8265
FCD
6692340
-
344
428
446
2
2
175
340
450
250
368
3
3
2299
6312
FC
6890250
-
354
424
436
2
2
111.2
450
250
368
3
3
2045
6134
FCD
6890250
-
354
424
436
2
2
112.6
480
350
378
4
4
3790
10500
FCD
6896350
-
355
446
465
2.5
2.5
207
500
370
385
4
4
5350
12000
FCDP
68100370
-
263
350
500
380
389
5
5
4290
11700
FCD
70100380
6727

70

363
464
487
2
2
242

Series of four-row cylindrical roller bearings

Our preliminary design of four-row cylindrical roller bearings is available in several methods. The primary design differences between the bearings are the number of inner and outer rings, the ring designs (flange configurations), and the cage design and material.

  • FC
  • FCD
  • FCDP

Features of four-row cylindrical roller bearings

  • Higher radial load capacity
  • Lower friction
  • Compact internal structure
  • Higher stiffness
  • Higher precision
  • High rotating speed
  • Interchangeable

Applications of four-row tapered roller bearings

Four-row cylindrical roller bearings are used almost exclusively for the roll necks of rolling mill stands, calenders, and roller presses.

Company Information

We are a professional bearing exporter in China, producing many bearings in different sizes and sizes. We can provide you with excellent service in a wide range of bearings with world-class quality, such as deep groove ball bearings, spherical roller bearings, spherical ball/roller bearings, and cylindrical roller bearings, tapered roller bearings, angular contact Ball bearings, etc. Bearings can also provide OEM services according to customer requirements. We adhere to strict global standards, which is why we can provide you with a wide range of bearings of world-class quality. We have always adhered to the principle of “integrity-based, quality first, customer foremost.” We are ready to use our sincerity to serve every global customer for long-term and win-win cooperation.

Product Quick Detail:

  • Standard and non-standard available
  • With high quality and competitive price
  • Prompt delivery
  • Packing as per customer’s demand.

We promise will offer the best price by the high quality in china! We also accept special order about the products. If you are interested in our products. Please do not hesitate to let us know.We are pleased to give you the detailed information.We promise that our products would be safety and were in high quality and reasonable price. If you are interested in our products, please contact us asap.We are sincerely looking for your cooperation.

Most of our products are exported to Europe or Americas, both standard and nonstandard products available. We can produce as per your drawing or sample. Material can be standard or as per your special request. If you choose us, you choose reliable.

pruduct quality report

Materials Available

1. Stainless Steel: SS201, SS303, SS304, SS316, SS416, SS420
2. Steel:C45(K1045), C46(K1046),C20
3. Brass:C36000 ( C26800), C37700 ( HPb59), C38500( HPb58), C27200(CuZn37), C28000(CuZn40)
4. Bronze: C51000, C52100, C54400, etc
5. Iron: 1213, 12L14,1215
6. Aluminum: Al6061, Al6063
7.OEM according to your request
product materials available

Surface Treatment

Annealing, natural canonization, heat treatment, polishing, nickel plating, chrome plating, zinc plating,yellow passivization, gold passivization, satin, Black surface painted etc.

Processing Method

CNC machining, punch,turning, milling, drilling, grinding, broaching, welding and assembly
product finishing

QC & Certificate

Technicians self-check in production,final-check before package by professional Quality inspector
ISO9001:2008 , ISO14001:2001,ISO/TS 16949:2009

Package & Lead Time

Size: Drawings
Wooden Case/Container and pallet, or as per customized specifications.
15-25days samples. 30-45days offcial order
Port: Shanghai/Ningbo port
product packages

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