浴室人妻的情欲HD三级,亚洲AV无码潮喷在线观看,含羞草国产亚洲精品岁国产精品无码一区二区三区,精品视频一区二区三区在线观看,国产精品久久久久久久AV大片欧美日韩国产高清精卡成人性欧美,国产乱码精品一区二区三区麻豆,久在线中文字幕亚洲日韩,av无码精品一区二区三区三级

Self-lubricating Bearing

The metal composite self-lubricating bearing material uses high-quality carbon steel as the substrate, a sintered copper powder layer in the middle, and a low-friction material mainly composed of PTFE or thermoplastic polymer as the bearing working layer. This structure has excellent load-bearing capacity. The middle copper powder layer can not only transfer the heat generated during the bearing operation in time, but also improve the bonding strength between the plastic layer and the substrate. The design of PTFE is suitable for completely dry friction state.

This product series has the characteristics of low friction coefficient, wear resistance, good corrosion resistance and oil-free lubrication. The use of this product can reduce costs, reduce mechanical volume, avoid shaft biting, and reduce mechanical noise.

At present, it has been widely used in the sliding parts of various machinery, such as printing machines, textile machines, exercise machines, hydraulic pallets, micro motors, automobiles, motorcycles and agricultural and forestry machinery.


午夜十八禁在线网站欧美| 国产精品成人∨a在线观看| 亚洲日本综合中文日本一区二区三区四区| 精品自拍视频在线观看| 日韩欧美国产精品第一页不卡| 国产精品自产拍高潮在线观看| 日韩不卡高清无码人妻| 一本久久伊人热热精品中文| 亚洲人成网址在线播放狼友| 欧美乱妇狂野欧美在线视频| 国产精午夜一区二区三区不卡久免費資訊| 婷婷伊人在线播放国产麻豆| AAA级精品无码久久久国产片| 性色aⅴ免费无码一区二区| 精品99久久一A毛免费观看| 国产性天天综合网| 无码专区国产无套粉嫩白浆内射| 性刺激的欧美三级视频中文字幕| 国产福利男女XX00视频| 亚洲av无码一区东京热不卡| 欧美一区二区三区精品在线| 亚洲AV无码一区二区二三区∝| 国产在线精品观看一区欧美国产精品不卡| 成人免费视频深夜视频在线看网站| 国产一线在线视频一区二区三区四区| 91国际视频| 久久99色| jizzjizzjizz亚洲熟妇 | 区蜜桃欧美黑人又大又粗XXXⅩ精品无码不卡AV在线播放| 国产艳妇av在线出轨| 亚洲精品无码中文久久字幕| 亚洲不卡av一区二区三区| 国产三级自拍视频| 久久精品国产亚洲av无码偷窥| 久热中文字幕在线精品| 亚洲欧美一级夜夜爽w| 精品久久久久久中文墓无码| 国产精品亚洲精品日韩已方| 玖玖热麻豆国产精品视频| 国产精品99久久精品爆乳| 熟妇人妻AV无码一区二区三区| 欧美国产亚洲日韩在线二区|