1, open bearing is a bearing with no closures.
2, closed on both sides of bearing means bearing with closures, ZZ said both sides with metal lid, customers can choose according to their own requirements different closures.
3, the same size bearings, customers can choose different materials, grades.
4, the following dimensions are in accordance with international standards bearing the basic dimensions, such as customers have different requirements, we can be customized.
5, the same bearing a variety of different symbols and terminologies, make sure that their needs bearing size.