Page 57 of BEAREE by NTN Corporation Japan

technical reference bearee dm5030 test condition friction test test unit thrust type friction and wear test unit mating material bearing steelsuj2 a5056 face pressure 1 mpa sliding velocity 10 m/min lubrication none ambient temperature room temperature test time 60 minutes 0.3 friction coefficient 0.2 suj2 0.1 a5056 0 0 10 20 30 test time 40 min 50 60 fig.26 friction coefficient versus running time bearee er3000 test condition friction test test unit thrust type friction and wear test unit mating material bearing steelsuj2 face pressure 0.3 mpa sliding velocity 1.0 m/min lubrication none ambient temperature room temperature 2 1.5 friction coefficient 1.5 1 0.7 0.5 0 nbr fluororubber on the market er3000 90 ptfe 20 gf 0.28 0.15 fig.27 friction coefficient comparison mating suj2 bearee fl7075 coating test condition friction test test unit thrust type friction and wear test unit mating material sus304 face pressure 0.01 0.2 mpa sliding velocity 0.01-10 m/min lubrication none ambient temperature room temperature friction coefficient 0.3 p 0.2 0.01mpa 0.1 p 0.2mpa 0 0 1 2 3 4 5 6 m/min 7 8 9 10 velocity fig.28 friction coefficient versus sliding velocity 57

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