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52,53 2RS 52,53 ZZ
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Bearing No.
Boundary dimensions(mm)
Basic load ratings(kN)
Mass
d
D
B
T
r min
r1 min
Dynamic(Cr)
Static(Cor)
Kg
77779K
395
545
268.7
288.7
4
7.5
2130
6500
194
77779U
395
545
268.7
288.7
4
7.5
2130
6500
194
77880
400
540
280
280
3.7
7.5
2450
6500
187
380680/HC
400
540
400
400
5
5
6350
13300
262
381080/HC
400
600
356
356
5
4
3400
12400
345
380684/HC
420
560
437
437
5
5
7180
16300
298
1077784
420
700
480
480
6
5
5100
18200
749
381184
420
700
480
480
6
5
9550
11900
755
77888U
440
620
454
454
6
6
6050
1880
432
77888
440
620
454
454
6
6
6050
18800
432
77888
440
650
355
355
6
5
3350
12100
385
77888K
440
650
355
355
6
6
3350
12100
385
381088X2/HG
440
650
355
355
6
5
4550
12300
402
381992/HC
460
620
310
310
5
4
5600
3450
260
381992/HCC9
460
620
310
310
5
4
5600
3450
260
77982U
460
650
474
4746
6
6
4500
20000
506
381192X3/HC
460
730
440
440
4
7.5
5600
14800
663
381192X3/HCC9
460
30
440
440
4
7.5
5600
14800
663
381096
480
700
420
420
5
5
4300
16900
582
77196
480
700
420
420
6
5
5350
15500
535
380698/HC
490
625
385
385
7
4
4900
16500
278
3810/530
530
780
450
450
6
5
6550
18200
745
779/540
540
690
400
400
2
5
5700
11400
375
3819/560/HC
560
750
368
368
5
4
7850
15800
447
3811/560
560
920
620
620
7.5
6
18200
32000
1690
779/600
600
800
365
365
5
5
4000
18100
489
10779/600
600
800
380
380
5
4
4000
18100
497
3810/600/HC
600
870
480
480
6
6
6150
25500
992
10777/600
600
980
650
650
7.5
7.5
9650
37500
1970
3819/630/HC
630
850
418
418
6
6
5000
22100
682
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