DRAWINGS:
SPECIFICATE:
Boundary |
Basic load ratings |
Designations |
Structure size |
Installation dimersion |
Mass |
|||||||||||
mm |
kN |
mm |
mm |
kg |
||||||||||||
d |
D |
B |
rmin |
Cr |
Cor |
Current |
Original |
Fw |
Ew |
damin |
damax |
Damin |
Damax |
dbmin |
ramax |
|
560 |
920 |
280 |
7.5 |
6850 |
13700 |
NNU 31/560 |
34827/560 |
650 |
- |
630 |
- |
- |
- |
655 |
6 |
738 |
600 |
800 |
200 |
5 |
3850 |
10500 |
NNU 49/600 |
44829/600 |
666 |
- |
620 |
662 |
- |
780 |
672 |
4 |
284 |
|
800 |
200 |
5 |
3450 |
7180 |
NN 49/600K |
41829/600 |
- |
755 |
620 |
- |
- |
780 |
- |
4 |
257 |
|
870 |
200 |
6 |
3420 |
7785 |
NN 30/600 |
32821/600 |
- |
803 |
626 |
- |
808 |
844 |
- |
5 |
355 |
|
870 |
272 |
6 |
6138 |
14040 |
NNU 40/600 |
44821/600 |
664 |
- |
626 |
653 |
- |
844 |
670 |
5 |
530 |
|
980 |
375 |
7.5 |
8910 |
18990 |
NNU 41/600 |
44827/600 |
699 |
- |
633 |
682 |
- |
947 |
706 |
6 |
1100 |
630 |
780 |
150 |
4 |
2290 |
7000 |
NNU 48/630 |
44828/630 |
676 |
- |
646 |
667 |
- |
764 |
676 |
3 |
160 |
|
850 |
218 |
6 |
4200 |
11400 |
NN 49/630 |
42829/630 |
- |
793 |
656 |
- |
- |
824 |
- |
5 |
328 |
|
850 |
218 |
6 |
4000 |
10800 |
NNU 49/630 |
44829/630 |
704 |
- |
656 |
699 |
- |
824 |
710 |
5 |
356 |
|
920 |
212 |
7.5 |
3860 |
8820 |
NN 30/630 |
32821/630 |
- |
845 |
663 |
- |
851 |
887 |
- |
6 |
430 |
|
920 |
290 |
7.5 |
6885 |
15750 |
NNU 40/630 |
44821/630 |
699 |
- |
663 |
688 |
- |
887 |
705 |
6 |
635 |
|
1030 |
400 |
7.5 |
9900 |
21600 |
NNU 41/630 |
44827/630 |
734 |
- |
663 |
716 |
- |
997 |
740 |
6 |
1330 |
670 |
900 |
230 |
6 |
4450 |
12330 |
NN 49/670 |
42829/670 |
- |
838 |
696 |
- |
- |
874 |
- |
5 |
419 |
|
900 |
230 |
6 |
4950 |
13100 |
NNU 49/670 |
44829/670 |
738 |
- |
696 |
732 |
- |
874 |
744 |
5 |
430 |
|
980 |
230 |
7.5 |
4620 |
10260 |
NN 30/670K |
31821/670 |
- |
901 |
703 |
- |
907 |
947 |
- |
6 |
597 |
The main design differences between cylindrical roller bearings are:
Number of roller rows included (one row or two rows)
Cage type (with/without or with special cage)
-Bearings with cage can withstand high radial load and impact load, rapid acceleration and high speed.
-Full complement roller bearings (without cage) can load the maximum number of rollers, so they are suitable for applications with extremely heavy radial loads at medium speeds.
-High load carrying capacity cylindrical roller bearings, with the high load carrying capacity of full complement roller bearings and the high speed capacity of bearings with cages.
Pictures of our manufactory and stock goods:
http://www.obtbearings.com/