FAG bearing supplement code
Core Tip: Common bearing code FAG's bearing code consists of basic code, pre-code and post code. The basic code indicates the basic type, structure and size of the bearing. Preamble code indicates axis
Common bearing code FAG's bearing code consists of basic code, pre-code and post code. The basic code indicates the basic type, structure and size of the bearing. The leading code indicates that the bearing part is placed before the basic code. The post code indicates the supplemental code added after the basic code of the bearing when the bearing structure shape, size, seal, cage, tolerance, clearance, heat treatment, packaging, technical requirements, etc. are changed. 1 Pre-coded The pre-code R is placed directly before the bearing basic code, and the remaining pre-codes are separated from the basic code by small dots. GS—Thrust cylindrical roller bearing race. Example: GS.81112 K – Assembly of rolling elements and cages. Example: K.81108 assembly of thrust cylindrical roller and cage. R – without bearings that separate the inner or outer ring. Example: RNU207 - NU207 bearing without inner ring. WS—Thrust cylindrical roller bearing shaft ring. Example: WS.81112. 2 Post-code The post-code is placed after the base code. When there are multiple sets of post-codes, they should be arranged from left to right in the order of the post-codes listed in the bearing code table. Some post-codes are separated from the base code by small dots. (1) Internal structure A, B, C, D, E internal structural changes Example 1: angular contact ball bearings 7205C, 7205E, 7205B, C-15 degree contact angle, E-25 degree contact angle, B-40 degree contact angle . Example 2: Cylindrical roller, spherical roller and thrust spherical roller bearings N309E, 21309E, 29412E - reinforced design, improved bearing load capacity. VH-roller self-locking full-roller cylindrical roller bearing (the round diameter of the roller is different from the standard bearing of the same type). Example: NJ2312VH (2) External dimensions and external structure of the bearing DA-separable double row angular contact ball bearing with double inner ring. Example: 3306DA DZ-cylindrical outer diameter roller bearing. Example: ST017DZ K-cone hole bearing, taper 1:12. Example: 2308K. K30-cone bore bearing with a taper of 1:30. Example: 24040K30. 2LS- double inner ring, double row cylindrical roller bearing with dust cover on both sides. Example: NNF5026C.2LS.V- internal structure change, double inner ring, dust cover on both sides, full roller double row cylindrical roller bearing. Bearings with snap grooves on the N-outer ring. Example: 6207N. NR-bearing bearing with snap groove and snap ring on the outer ring. Example: 6207NR. N2-contact ball bearing with two stop grooves on the N2-outer ring. Example: QJ315N2. S-outer ring bearing with oil groove and three lubrication holes. Example: 23040 is. Spherical roller bearings with a bearing outer diameter D of 320 mm or more are not marked with S. The X-outer dimensions conform to international standards. Example: 32036X. Z..-Technical conditions for special structures. Arrange sequentially from Z11. Example: Z15-stainless steel bearing (W-N01.3541). The ZZ-roller bearing has two retaining rings that guide the outer ring. (3) Sealing and dustproof RSR-bearings have a sealing ring on one side. Example: 6207RSR. The ZR-bearing has a dust cover on one side. Example: 6207ZR. 2ZR-bearings have sealing covers on both sides. Example: 62072ZR. The ZRN-bearing has a dust cover on one side and a stop groove on the outer ring on the other side. Example: 6207ZRN. The 2ZRN-bearing has a dust cover on both sides and a snap groove on the outer ring. Example: 62072ZRN. (4) Cage and its materials 1) Solid cage. After A or B is placed in the cage designation, A indicates that the cage is guided by the outer ring and B indicates that the cage is guided by the inner ring. F-steel solid cage, guided by rolling elements. FA-steel solid cage with outer ring guide. FAS-steel solid cage with outer ring guide and lubrication groove. FB-steel solid cage with inner ring guide. FBS-steel solid cage with inner ring guide and lubrication groove. FH-steel solid cage, carburized and quenched. H, H1-carburized quenching cage. FP-steel solid window cage. FPA-steel solid window cage with outer ring guide. FPB-steel solid window cage with inner ring guide. FV, FV1-steel solid window holder, after aging, quenching and tempering treatment. L-light metal solid cage, guided by rolling elements. LA-light metal solid cage with outer ring guide. LAS-light metal solid cage with outer ring guide and lubrication groove. LB-light metal solid cage with inner ring guide. LBS-light metal solid cage with inner ring guide and lubrication groove. LP-light metal solid window cage
