Self-aligning journal bearing |
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Wednesday, 13 October 2010 10:39 |
Uses Self-aligning journal bearings are designed for installation on ships as line shafts and serve for perception of radial load from shaft line mass and its alignment. Bearings have got design approval of Lloyd Register of Shipping LR (Great Britain).
Technical Features Bearings are fabricated for shafts with center shafts diameters from 140 up to 900 mm, range of perceived loads is from 15.7 up to 538.0 kN. Maximum circular speed of shaft rotation — 6 m/s. Lubrication of bearings is individual (without join¬ing up to oil system of a ship) by means of oils with kinematic viscosity in the range from 43 to 190 cSt at 50° C. The bearings operate without water cooling. Principal technical characteristics of the bearings are given in Table.
Description of Design The bearing consists of a body and a cover, spherical shell is placed into inner spherical bore, providing self-alignment of bearing at shaft skewness to 45 minute. Housings join up to end faces of a shell, oil is filled in housings in which oil feed rings, oil-catch rings and oil header are arranged. Oil feed rings and oil-catch rings form a system of labyrinth seals and prevent oil leaks out of bearing.
Accessories Included Bearing is supplied with a spares and accessories kit (the upper and the lower bearing shell, thermometer), Certificate, Technical description and Operating Manual.
Bearing No |
Dimensions, mm |
Mass, kg |
Max service load, kN |
D |
L |
B |
H |
H1 |
L1 |
L2 |
L3 |
L4 |
d |
1 |
140... 180 |
480 |
450 |
467 |
240 |
215 |
65 |
165 |
400 |
25 |
190 |
15.7 |
2 |
190...220 |
494 |
515 |
519 |
265 |
225 |
65 |
165 |
460 |
32 |
230 |
22.5 |
3 |
230...260 |
527 |
580 |
589 |
300 |
245 |
80 |
190 |
520 |
28 |
290 |
35.3 |
4 |
270...300 |
585 |
665 |
680 |
350 |
265 |
80 |
200 |
600 |
32 |
320 |
49 |
5 |
320...360 |
610 |
760 |
750 |
400 |
315 |
95 |
235 |
680 |
38 |
450 |
83.4 |
6 |
380...420 |
685 |
910 |
889 |
480 |
380 |
130 |
290 |
820 |
44 |
680 |
117.5 |
7 |
450...470 |
739 |
990 |
969 |
525 |
410 |
135 |
320 |
900 |
44 |
900 |
157 |
8 |
500...550 |
860 |
1140 |
1109 |
600 |
520 |
160 |
400 |
1020 |
50 |
1400 |
225 |
9 |
570...600 |
920 |
1220 |
1166 |
640 |
530 |
170 |
410 |
1100 |
50 |
2100 |
284 |
10 |
630...690 |
1045 |
1460 |
1390 |
780 |
645 |
215 |
505 |
1320 |
58 |
2650 |
373 |
11 |
720...750 |
1075 |
1540 |
1462 |
820 |
655 |
225 |
515 |
1400 |
58 |
3300 |
442 |
12 |
780...820 |
1120 |
1620 |
1570 |
880 |
655 |
225 |
515 |
1500 |
58 |
3800 |
490 |
13 |
860...900 |
1140 |
1715 |
1645 |
910 |
680 |
230 |
530 |
1565 |
58 |
4600 |
538.0 |
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Self-aligning journal bearing. Scheme.
Self-aligning journal bearing. Photo.
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