狠狠色伊人亚洲综合网站l I 国产黄色av免费 I 日本在线视频www色 I 亚洲一级色片 I 亚洲大成色 I 日韩久久一级 I 日韩高清一级 I 九色视屏 I 深夜福利av I 又大又粗又爽18禁免费看 I 中文字幕在线一二三区 I 人人揉人人捏人人添 I 国产激情精品视频 I 在线精品免费观看 I 梦乃爱华av在线播放 I 国产v精品成人免费视频 I 97国产自在现线免费视频 I 亚洲mv国产mv在线mv综合试看 I 久久九九网站 I 嫩草在线影院 I 国产亚洲精品久久久久久一区二区 I 来吧亚洲综合网 I 亚洲色无码专区在线观看 I 男女黄色免费网站 I 九九九九久久久久 I 久久精品久久久久久噜噜老黄 I www.国产在线 I 亚洲国产三级在线观看 I 污软件在线看 I 中文字幕一区二区三区av I 污视频网站入口 I 激情欧美丁香 I 国产农村妇女毛片 I 爱情岛一区二区 I 日本视频播放

Self-lubricating Bearings

HLDB Metal-polymer self-lubricating bearings consist of low carbon steel and sintered bronze in the middle with PTFE compounded on the surface. It is lighter and has better mechanical and load performance. Low carbon steel gives exceptionally high load carrying capacity. Sintered bronze powder connect plastics and assisting friction reduction. PTFE layer plays the role of wear resistance to protect the mating metal surface. It has good capacity for low coefficient of friction, low wear rate, lower-noise and good sliding characteristics. It is suitable for dry running and performs well in general industrial area.