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Metallurgy & Mine Bearings > Four row taper roller bearings


Designation
Old code.
Principal Dimensions(mm)
Weight
(KG)
d
D
T
B
Rsmin
rsmin
7740
77740
200
310
200
200
3
2.5
55.6
-
2077140
200
310
275
275
3
2.5
75.1
77741
77741
205
320
205
205
4
3
55.4
2077144E
2077144E
220
340
305
305
4
3
100.8
2077148
2077148
240
360
310
310
4
3
90.5
330782A
-
241.478
349.148
228.6
228.6
1.5
3.3
70.4
380650
3-703
250
385
255
255
3
3
107.8
77750Y
77750Y
250
460
270
270
4
4
196
382952
2077952
260
360
265
265
3
3
80
381052X2/HC
77752
260
400
255
255
5
5
123
382052
-
260
400
345
345
5
4
161
77752
77752
260
440
300
300
2
5
164
330822B
-
266.7
355.6
228.6
230.188
1.5
3.3
62.8
-
77756
280
420
250
250
5
5
119
381156
1077756
280
460
324
324
5
4
215.7
-
2077160
300
460
390
390
5
4
222
-
2077164
320
480
380
380
5
4
252
-
2077968
340
460
310
310
4
4
147
381068
-
340
520
325
325
5
4
247
-
77872
360
480
375
375
4
4
197
107772
1077772
360
600
420
420
4.7
4.7
388
-
77776
380
550
350
30
5
5
271
-
3077776
380
620
388
388
6
6
443
381176
1077776
380
620
420
420
5
4
485
-
77779
395
545
288.7
268.7
10
10
191
-
77880
400
540
280
280
3.7
7.5
187
380680
-
400
540
400
400
5
5
262
381080
-
400
600
356
356
5
4
345
380684
-
420
560
437
437
5
5
298
381184
1077784
420
700
480
480
6
5
755
-
77888
440
620
454
454
6
6
432
-
77788
440
650
355
355
6
6
385
381992
1077992
460
620
310
310
4
3
252
-
77892
460
650
474
474
6
6
506
381192
-
460
730
440
440
4
7.5
663
-
77196
480
700
420
420
6
5
535
380698
-
490
625
385
385
7
4
278
3810/530
-
530
780
450
450
6
5
745
-
779/540
540
690
400
400
5
5
375
3819/560
-
560
750
368
368
5
4
447
3811/560
-
560
920
620
620
7.5
6
1690
-
779/600
600
800
365
365
5
5
489
-
10777/600
600
800
380
800
5
4
497
3810/600
-
600
870
480
480
6
6
992
-
10777/600
600
980
650
650
7.5
7.5
1970
3819/630
-
630
850
418
418
6
6
682
-
771/630
630
920
515
515
7.5
7.5
1190
3811/630
-
630
1030
670
670
7.5
6
2200
-
777/640
640
1030
560
560
7.5
12
1770
-
777/650
650
1030
560
560
7.5
12
1720
-
10779/670
670
900
412
412
6
6
773
-
779/710
710
900
410
410
3
6
650
-
10777/750
750
1220
840
840
9.5
9.5
3985

 

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