国产一区 日韩I女人十八毛片嫩草avI青青青草视频在线观看I91亚洲成人I国产精品视频一区二区三I在线观看av网I欧美色二区I亚洲性电影I成人看片黄a免费看视频I精品九一I欧美一级片在线看I六月婷婷七月丁香I高清成人I99色视频在线I天天干天天操天天摸I国产激情福利I国产男男gayI国产诱惑在线观看I99热热久久I国产成人精品牛牛影视

????If an adequate operating life is to be achieved, a basic requirement is that　the bearing contact pressure is compatible with the operating conditions. The bearing contact pressure identifies the surface pressure occurring in the bearing and is a decisive criterion for the assessment of a spherical plain bearing in each individual application.

p=contact pressure N/mm2

k=contact pressure parameter N/mm2

Cd=Dynamic load rating kN

P=Equivalent dynamic bearing load kN