Explanation of sliding bearing code: 6309-2z/p5
This is deep groove ball bearing.6 deep groove ball bearings3 wide range09 represents the bearing inner diameter: 45mm2Z is flanked by iron dust capsP5 is the precision grade: the dimension rotation accuracy conforms to the ISO5 class tolerance
(2) prefix codeThe bearing prefix is used to represent the bearing parts and is represented by letters. For example, separable rings for separable bearings are represented by L; the K represents the rolling element of the bearing and the cage assembly.(3) post codeThe rear code of the bearing is used to indicate the structure, tolerances and special requirements of materials, such as letters and numbers. There are many contents of the post code name. Here are some commonly used code names.1) the internal structural code is the different internal structure of the same type of bearing, followed by the basic code. Such as: contact angle of 15 degrees, 25 degrees and 40 degrees of angular contact ball bearings, respectively, with C, AC and B that {HotTag} internal structure of the difference.2) bearing tolerance grade is divided into 2 levels, 4, 5, 6, 6X and 0, a total of 6 levels, followed by advanced to low-level, its code names are /PZ, /P4, /PS, /P6, /P6X and /PO. Tolerance class, 6X class applies only to tapered roller bearings; 0 is an ordinary class, in the wheel bearing code is not marked..3) bearing radial clearance series commonly divided into 1 groups, 2 group, 0 group, 3 group, 4 group and 5 group, a total of 6 groups, sequentially larger radial clearance. O group clearance is a common clearance group, in the bearing code is not marked, and the rest of the clearance group in the bearing code respectively with /CI, /CZ, /C3, /C4, /CS said.
