SBI，professional bearing manufacturer from China, has been devoting to special bearing，slewing bearing，slewing drive ,precision crossed roller bearing，full complement cylindrical roller bearing and tandem thrust bearing since 1989（over 26 years）. Our strength is to use latest technology to create customized bearing with diameter from 4mm（tandem bearing）to 6000mm（slewing bearing）used in a wide variety of applications.90% of our production is exported to more than 30 countries all over the world.One of our tandem bearing can replace that of INA with lower price than it and equivalent quality.