| 摘要 |
FIELD: transport.SUBSTANCE: spreader beam comprises girder 1 with saddle 2, pull member attachment 3 and rolls 4 fitted on axles 5 running in bearings 6 made of self-lubing material and fitted on girder arms. Said self-lubing material is composed of ethanol varnish - 1 part by weight, graphite powder - 0.2-0.3 parts by weight, and fluoroplastic powder - 0.3-0.4 parts by weight. Said substances are used to impregnate woven sleeves from glass fibre or cotton cloth.EFFECT: higher reliability, longer life. |
