the fine powder of rbc was 70 wt the resin composition obtained by melting and mixing the fine powder of rbc and nylon 66 was injection molded to obtain a sleeve with an outer diameter of 22 mm an inner diameter of 8 mm and a length of 120 mm a sleeve bearing shown in fig3 was then fabricated by inserting in a sleeve a sus bearing steel shaft with an outer diameter of 7 95 mm and a length of 200 mm the sleeve bearings thus obtained were used as the sleeve bearings 2 2 u2032 of the rotor assembly as shown in fig1 and 2 a total of 750 g of defatted bran obtained from rice bran and 250 g of a liquid phenolic resin resol were mixed and blended while being maintained at a temperature of 50 u2013 60 u00b0 c as a result a homogeneous mixture having plasticity was obtained the mixture was baked for 60 min at a temperature of 900 u00b0 c in nitrogen atmosphere in a rotary kiln to obtain carbonized fired material the carbonized fired material was ground with a grinding machine and passed through a 200 mesh sieve to obtain a fine powder of rbc with a mean particle size of 100 u2013 120 u03bcm a total of 750 g of the obtained fine powder of rbc and 500 g of a solid phenolic resin resol were mixed and.