1, open-bearing means bearing with no closures of.
2, closed on both sides of the bearing means bearing with closures or closures, ZZ said both sides with a metal lid, 2RS said both sides with closures, customers can choose different closures or closures according to their own requirements.
3, the same size bearings, customers can choose different materials, grades. Materials were: bearing steel, carbon steel, stainless steel and plastics.
4, the following dimensions according to international standards, the basic dimensions of the bearing, as customers have different requirements, we can customize.
5, the same bearing a variety of different symbols and called, make sure their needs bearing size
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