The Suffix Meaning of FAG bearing

(1)FAG bearing Internal structure
A, B, C, D, E Internal structure changes
Example 1: FAG 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, spherical and thrust spherical roller bearings N309E, 21309E, 29412E-reinforced design, shaft
The load bearing 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 of the bearing
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. Bearing outer diameter D greater than or equal to 320
Spherical roller bearings in millimeters are not marked S.
X-dimensions comply with international standards. Example: 32036X.
Z..- Technical conditions for special structures. Arranged in descending order from Z11 onwards. Example: Z15-Stainless steel bearing (W-N01.3541).
ZZ-roller bearings have two retaining rings that guide the outer ring.
(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.
(4) 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.
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, aged, quenched and tempered.
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 guided (thrust roller bearing).
2) Stamping cage
J-steel plate stamping cage.
JN-Deep groove ball bearing riveted cage.
3) Cage changes
The number added after the cage code, or inserted in the middle of the cage code, indicates that the cage structure has been changed. This
These figures are for transitional periods only, 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 according to international standard ISO class 6.
P6X – Tolerance class 6X tapered roller bearings according to the international standard ISO.
P5 – Tolerance class according to international standard ISO class 5.
P4 – Tolerance class according to international standard ISO class 4.
P2 – Tolerance class according 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 class 4, and rotational accuracy is higher than class 4 (double row cylindrical roller bearings).
HG-dimensional accuracy is equivalent to class 4, and rotation accuracy is higher than class 4 and lower than class 2 (spindle bearings).