friction disc of MASSEY FERGUSON tactor OEM NO.1860964M2 Size:224*55.1*4.8*27IT Copper-base P/M friction material,bronze friction plate,bronze friction disc dry type: Average coefficient of kinetic friction μd=0.20 0.25; Coefficient of friction of rest μs=0.42 0.47; Rate of wear <3.0×10-7cm3/J wet (gumming): Average coefficient of kinetic friction μd=0.05 0.08; Coefficient of friction of rest μs=0.12 0.17; Rate of wear <2.5×10-8cm3/J the product widely applies in general domains and so on machinery, engineering machinery, farm machinery, ships machinery, automobile and war industry machinery. copper base friction disk and antithesis steel disk:Mainly uses in the gear box, the coupling, the gear box, the brake and so on; model application: Big, middle, the low power ship uses the gear box, the car loader, the bulldozer, the excavator, the road roller, the hoist crane, heavy automobile, tractor, press, and so on engine bed