公司里的艳妇们都熟透了,又粗又硬的大鸡吧艹逼,涩涩视频网站,500福利久久久综合导航,好大好爽好猛我要喷水了视频,国产一区二区三区在线播放,迷人的人妻HHD语中字,小货SAO边洗澡边CAO你动漫,日本A级理论日本电影BIS,国产精品午夜小视频观看

Products

products

SF-1P reciprocating move material

  • parameters

SF-1P reciprocating move material is a novel formula designed according to the special working conditions of reciprocating motion, and its performance is similar to that of foreign DD2. The utility model has the advantages of strong self-lubricating ability, good wear resistance and clear oil film under the condition of oil-cutting, and the material can better protect the surface of the grinding shaft from abrasion. At present, the material products have been widely used in automobile shock absorbers, motorcycle shock absorbers, various hydraulic cylinders, hydraulic motors, pneumatic components and the like.


Maximum load pressure: 140N/mm2

Friction coefficient μ: 0.04~0.20

Applicable temperature range: -195 ° C ~ 280 ° C

Maximum sliding speed: 2.5m/s

Allow the highest PV value (dry): 3.6N/mm2.m/s

Allowable maximum PV value (oil): 50N/mm2.m/s