... the demands of all steel mills. Four Row Cylindrical Roller Bearings are commonly used on Rod and Bar Type Mills ... arranged to accommodate thrust loads for specific applications.Screw down bearings are full complement, steep angle, single row, thrust ... and devices and professional techincal team .b.Nice price with good servicePrecisionP0,P6,P5,P4Ring materialGCr15,GCr15SiMn,G20GrNiMoCage matericalBrass, ...