NSK double row self-aligning roller bearing 1,ISO 9001 2,durable,long life,high precision ... (mainland)HardnessHRC60-65Presion ratingP0,P5,P6MaterialChrome steel,Carton steel,bearing steal,ect.Functiontake combined loading (consists of radial and ... motor,automotive,B16motorcycle,and common machineOur products include:1,roller bearing2,ball bearing3,gear4,sprocket5,chainsOur company profile: Tianjin ...