... table SpecificationsDimensions(mm) weight(kg) With componentsPrice per set(without bearing)BK-642 X 20 X 25 0.10Bearing, support blocks, nuts, cover, sleeve ... 150.00 BK-852 X 23 X 32 0.40Bearing, ... 0.46Bearing, support blocks, nuts, cover, sleeve 210.00BM 2028 X 28 X 20 1.32Bearing, support blocks, nuts, cover, sleeve 270.00BM ...