強奷漂亮少妇高潮A片P夜夜嗨,再深点灬舒服灬太大了添A片小说,精品国产不卡一区二区,eeuss国产一区二区三区,国产精品毛片久久久,一区二区三区精品成人免费,377人体粉嫩噜噜噜,久久婷婷国产综合尤物精品,欧美v精品一区二区三区,一区二区三区四区精品视频

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