FAG bearing suffix meaning

There are many kinds of FAG bearing suffixes, but do you know the meaning of the suffix of FAG bearings? Let's take a look at the meaning of each suffix of FAG bearings~
1. Internal structure

A, B, C, D, E Internal structure modification 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-enhanced design, the bearing load capacity is improved. VH-roller self-locking full complement cylindrical roller bearing (roller diameter is different from the standard bearing of the same type). Example: NJ2312VH

2. Dimensions and external structure

DA-Separable double row angular contact ball bearing with double half inner ring. Example: 3306DA DZ-cylindrical outer diameter roller bearing. Example: ST017DZ K-tapered bore bearing, taper 1:12. Example: 2308K.

K30 - Tapered bore bearing, taper 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, with dust cover on both sides, full complement double row cylindrical roller bearing.

N - Bearings with snap grooves on the outer ring. Example: 6207N.

NR - Bearings with snap grooves and snap rings on the outer ring. Example: 6207NR.

N2 - Four-point contact ball bearing with two snap grooves on the outer ring. Example: QJ315N2.

S - Bearings with lubricating oil grooves and three lubricating oil holes in the outer ring. Example: 23040 is. Spherical roller bearings with bearing outer diameter D greater than or equal to 320 mm are not marked with S.

X-dimensions comply with international standards. Example: 32036X.

Z..- Technical conditions for special structures. Arranged in order from Z11 onwards. Example: Z15-Stainless Steel Bearing (W-N01.3541).

ZZ-roller bearing retaining ring with two guide outer rings

3. Sealing and dustproof

RSR-bearing has a seal on one side. Example: 6207RSR. ZR-bearing has a dust cover on one side. Example: 6207ZR. 2ZR-bearing with sealing cover on both sides. Example: 62072ZR. ZRN-bearing has a dust cover on one side and a stop groove on the outer ring on the other side. Example: 6207ZRN. 2ZRN-Bearing with dust cover on both sides, with stop groove on the outer ring. Example: 62072ZRN

ZR-- One side of the bearing has a dust cover. Example: 6207 ZR .2ZR bearing has dust caps on both sides. Example: 6207.2ZR ZRN-- One side of the bearing has a dust cover, and the other side has a stop groove on the outer ring. Example: 6207 ZRN. .2ZRN-- The bearing is provided with dust cover on both sides, and there is a stop groove on the outer ring. Example: 6207.2ZRN. Post code - cage and its material 1 Solid cage. A or B is placed after the cage code, A means the cage is guided by the outer ring, B means the cage is guided by the inner ring.

4. Cage and its material

(1) Solid cage. A or B is placed after the cage code, A means that the cage is guided by the outer ring, and B means that the cage is guided by the inner ring. F-steel solid cage, guided by rolling elements. FA-Steel solid cage, outer ring guide. FAS-steel solid cage, outer ring guide, with lubricating groove. FB-steel solid cage, inner ring guide. FBS-steel solid cage, inner ring guide, with lubrication groove. FH-steel solid cage, carburized and quenched. H, H1-carburized and quenched cage. FP-Steel solid window cage. FPA-steel solid window cage, outer ring guide. FPB-steel solid window cage, inner ring guide. FV, FV1-Steel solid window cage, after aging, quenching and tempering treatment. L-Light metal solid cage, guided by rolling elements. LA-Light metal solid cage, outer ring guide. LAS-Light metal solid cage, outer ring guided, with lubricating grooves. LB-Light metal solid cage, inner ring guide. LBS-light metal solid cage, inner ring guide, with lubrication groove. LP-Light metal solid window cage. LPA-light metal solid window cage, outer ring guide. LPB-light metal solid window cage, inner ring guide (thrust roller bearing is shaft guide). M, M1-brass solid cage. MA-brass solid cage, outer ring guide. MAS-brass solid cage, outer ring guide, with lubrication groove. MB-brass solid cage, guided by inner ring (thrust spherical roller bearing is guided by shaft ring). MBS-brass solid cage, inner ring guide, with lubrication groove. MP-brass solid straight pocket cage. MPA-brass solid straight pocket cage, outer ring guide. MPB-brass solid straight pocket cage, inner ring guide. T-phenolic laminated cloth tube solid cage, guided by rolling elements. TA-phenolic laminated cloth tube solid cage, outer ring guide. TB-phenolic laminated cloth tube solid cage, inner ring guide. THB-phenolic laminated cloth tube pocket cage, inner ring guide. TP-Phenolic Laminated Cloth Tube Straight Pocket Cage. TPA-Phenolic Laminated Tube Straight Pocket Cage, Guided by Outer Ring. TPB-Phenolic Laminated Tube Straight Pocket Cage, Guided by Inner Ring. TN-engineering plastic injection-molded cage, guided by rolling elements, with additional numbers indicating different materials. TNH-engineering plastic self-locking pocket cage. TV-glass fiber reinforced polyamide solid cage, guided by steel balls. TVH-glass fiber reinforced polyamide self-locking pocket solid cage, guided by steel balls. TVP-glass fiber reinforced polyamide window solid cage, guided by steel balls. TVP2 - glass fiber reinforced polyamide solid cage, roller guided. TVPB-glass fiber reinforced polyamide solid cage, inner ring guide (thrust roller bearing is shaft guide). TVPB1 - glass fiber reinforced polyamide solid window cage, shaft guide (thrust roller bearing).

(2) Stamping cage J-steel stamping cage. JN-Deep groove ball bearing riveted cage.

(3) The change of the cage is added after the code of the cage, or the number inserted in the middle of the code of the cage, indicating that the structure of the cage has been changed. These numbers are only for transitional periods, eg: NU1008M1.

5. Bearing without cage

V-full complement rolling element bearing. Example: NU207V. VT - full complement rolling element bearing with spacer balls or rollers. Example: 51120VT

6. Tolerance class

(Including dimensional accuracy and rotation accuracy) P0-tolerance level conforms to the level 0 specified by the international standard ISO, which is omitted in the code and does not indicate. P6-Tolerance class conforms to class 6 stipulated by the international standard ISO. P6X - Tolerance class 6X tapered roller bearings in accordance with the international standard ISO. P5-Tolerance class conforms to class 5 specified by the international standard ISO. P4-Tolerance class conforms to class 4 specified by the international standard ISO. P2-Tolerance class conforms to international standard ISO class 2 (excluding tapered roller bearings). SP-dimensional accuracy is equivalent to grade 5, and rotational accuracy is equivalent to grade 4 (double row cylindrical roller bearings). UP-Dimensional accuracy is equivalent to grade 4, and rotation accuracy is higher than grade 4 (double row cylindrical roller bearings). HG-dimensional accuracy is equivalent to grade 4, and rotation accuracy is higher than grade 4 and lower than grade 2 (spindle bearing).

7. Clearance

C1--The clearance conforms to the standard 1 group, less than the 2 group. C2-- The clearance conforms to the standard 2 groups, less than 0 groups. C0-- Group 0 whose clearance conforms to the standard, is omitted in the code and does not indicate. C3--The clearance conforms to the 3 groups specified in the standard, and the clearance is greater than 0 group. C4--The clearance conforms to the 4 groups specified in the standard, and the clearance is greater than 3 groups. C5-- The clearance conforms to the 5 groups specified in the standard, and the clearance is greater than 4 groups. When the tolerance class code and clearance code need to be expressed at the same time, take the tolerance class code (not indicated for P0 class) and the clearance group number (not indicated for group 0) to express. Example: P63=P6+C3 , it means the bearing tolerance class is P6 class, and the radial clearance is 3 groups. P52=P5+C2 , which means the bearing tolerance class is P5 class, with 2 groups of radial clearance. For non-standard clearance, when special radial clearance and axial clearance are required, the relevant limit value should be expressed in μ m after the letter R (radial clearance) or A (axial clearance). Separate them with small dots. Example: 6210.R10.20--6210 bearing, radial clearance 10 μ m to 20 μ m. 6212.A120.160--6212 Bearings, axial clearance 120 μm to 160 μm.