Логотип Севмаша

Self-aligning journal bearing Print
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


Self-aligning journal bearing. Scheme.


Self-aligning journal bearing. Photo.

 
 
 

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