Commonly used bearing code shorthand diagram and mouth to read

Note: in order to easy to remember, the above described in the second quarter of bearing code content, content related to the commonly used bearing drawing and compiled into 'diagram' and formula, some bad expression or expression is not very clear, please refer to our explains the contents of the front. ー, commonly used bearing code shorthand diagram commonly used bearing type and size in code series content shorthand 'diagram', commonly used bearing code content shorthand formula ( A) Structure bearing code has a regulation, made up of three parts. Front, basic and rear, each content is different. Front said division, general code does not use; Basic code as the main body, usually only use this section; Post code as the auxiliary, said seven or eight kinds of content. ( 2) The basic code 1. Series code basic code to recognize, generally includes three contents. Structure type first, there are seven kinds of commonly used. Tapered roller number 3; 5 for thrust ball bearings; Deep groove centripetal ball is 6; 7 for the Angle of ball bearings; Thrust cylindrical code 8; N as the column centripetal bearing; NU single short cylinder; Inner ring no more frequently used. 2. Size code size series in the middle of that wide diameter and high. In Numbers for the two, the former for wide high after the diameter. If a figure is a, outer diameter symbol should be 0 °. 3. Code inside diameter symbol at the end, relatively complex to distinguish. 20 the following is the most difficult to remember, 10 to 17 points, four etc. 03 and 01, 02, another is 00, 15, 17, 10, 12, in turn, is arranged corresponding to the more than 20 to 500, the inner diameter in addition to 5 to indicate, by industry in addition to single digits, plus a zero in front above 500 with real number, add slashes to distinguish before; 23, 28, and 32, with the standard written regulations. ( 3) Post code post code have sometimes, whether should be clear. Internal structure cage, sealed, clearance, and precision. 1. Sealing symbol Z code dust seal; RZ skeleton non-contact; Skeleton contact RS. Bilateral 2 unilateral. 2. Clearance C code clearance use symbols, followed by a digital meter from 0 to 5, a total of six series, level 0 symbol mark other C1 to C5, don't add slashes to hive off before. 3. Precision level code accuracy level symbol P, often with the number 0 to 6, mark walks gap, both standard C out. 4. Maintains a material code code cage, one or two English letters. Bronze Q yellow M; Iron and steel metallurgy for F