FAG company bearing make up code
2021-01-24 11:19:34
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FAG company bearing make up code
Source: China Bearing Network Time: 2018-05-02
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FAG's bearing code is composed of the original code; the front code and the post code. The root code indicates the basic type of bearing; layout and scale. The front code indicates that the bearing part is placed before the root code. The post code indicates the shape of the bearing layout; Scale; seal; cage; public service; clearance; heat disposal; packaging; skill requirements, etc. when there is a change; after the bearing code is added to make up the code.
1 The pre-coded pre-code R is placed directly before the bearing code; other pre-codes are separated from the root code by small dots.
GS thrust cylindrical roller bearing race. Example: GS. 81112
K C-Combination of the tumbling body and the cage. Example: Assembly K of the thrust cylindrical roller and the cage. 81108.
R C- without bearing that can separate the inner or outer ring. Example: RNU207 - NU207 bearing without inner ring.
WS thrust cylindrical roller bearing shaft ring. Example: WS. 81112.
2 The post code of the post code is placed after the root code. When there are multiple sets of post-codes; they should be placed from left to right in the order of the post-codes listed in the bearing code table. Some post-codes are separated from the root code by small dots.
(1) Internal layout
A; B; C; D; E internal layout change example 1: angular touch ball bearing 7205C; 7205E; 7205B; C-15 degree touch angle; E-25 degree touch angle; B-40 degree touch angle.
Example 2: cylindrical roller, spherical roller and thrust spherical roller bearings N309E, 21309E, 29412E - enhanced drawing; bearing load can be improved.
VH-roller self-locking full-roller cylindrical roller bearing (the complex diameter of the roller is not the same as the same type of bearing). Example: NJ2312VH
(2) The outer dimensions and external layout 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-conical hole bearing, taper 1:12. Example: 2308K.
K30-conical hole 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 layout changes; 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-four-point touch ball bearing with two retaining grooves on the outer ring. Example: QJ315N2.
S-outer ring bearing with smooth oil groove and three smooth oil holes. Example: 23040 is. Spherical roller bearings with bearing outer diameter D greater than or equal to 320 mm are not marked S.
The X-outer scale conforms to the rules of international norms. Example: 32036X.
Z. . - Special layout of skill conditions. Sliding down from Z11. Example: Z15-stainless steel bearing (W-N01.3541).
ZZ-roller bearing with two retaining rings guiding the outer ring.
(3) Sealing and dustproof
RSR-bearing with 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; the outer ring has a stop groove on the other side. Example: 6207ZRN.
2ZRN-bearings with dust cover on both sides; with snap groove on the outer ring. Example: 62072ZRN.
(4) cage and its information
1) Solid cage.
A or B is placed after the cage code; A indicates that the cage is guided by the outer ring; B indicates that the cage is guided by the inner ring.
F-steel solid cage; tumbler guide.
FA-steel solid cage; outer ring guide.
FAS-steel solid cage; outer ring guide with smooth groove.
FB-steel solid cage; inner ring guide.
FBS-steel solid cage; inner ring guide with smooth groove.
FH-steel solid cage; carburized and quenched.
H, H1-carburized quenching 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 hole cage; aging; quenching and tempering disposal.
L-light metal solid cage; roll body guide.
LA-light metal solid cage; outer ring guide.
LAS-light metal solid cage; outer ring guide; with smooth groove.
LB-light metal solid cage; inner ring guide.
LBS-light metal solid cage; inner ring guide; with smooth groove.
LP-light metal solid window type cage.
LPA-light metal solid window cage; outer ring guide.
LPB-light metal solid window cage; inner ring guide (thrust roller bearing for shaft guidance).
M; M1-brass solid cage.
MA-brass solid cage; outer ring guide.
MAS-brass solid cage; outer ring guide; with smooth groove.
MB-brass solid cage; inner ring guide (thrust spherical roller bearing for shaft guide).
MBS-brass solid cage; inner ring guide; with smooth groove.
MP-brass solid straight pocket holder.
MPA-brass solid straight pocket holder; outer ring guide.
MPB-brass solid straight pocket holder; inner ring guide.
T-phenolic laminated tube solid cage; roll guide.
TA-phenolic laminated cloth tube solid cage; outer ring guiding.
TB-phenolic laminated cloth tube solid cage; inner ring guiding.
THB-phenolic laminated cloth tube pocket holder; inner ring guide.
TP-phenolic laminated tube straight pocket holder.
TPA-phenolic laminated tube straight pocket holder; outer ring guide.
TPB-phenolic laminated cloth tube straight pocket holder; inner ring guide.
TN-engineering plastic mold holder; roll body guide; use additional numbers to indicate different materials.
TNH-engineering plastic self-locking pocket type cage.
TV-glass fiber reinforced polyamide solid cage; steel ball guide.
TVH-glass fiber reinforced polyamide self-locking pocket type solid cage; steel ball guide.
TVP-glass fiber reinforced polyamide window type solid cage; steel ball guide.
TVP2-glass fiber reinforced polyamide solid cage; roller guide.
TVPB-glass fiber reinforced polyamide solid cage; inner ring guide (thrust roller bearing for shaft guidance).
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 cage change is added after the cage code; perhaps the number inserted in the center of the cage code; indicates that the cage layout has changed. These numbers are only used for the transition period; for example: NU1008M1.
(5) without cage bearing
V-full roll bearing. Example: NU207V.
VT- full complement roll bearing with blocking ball or roller. Example: 51120VT.
(6) Public service level (including scale accuracy and rotation accuracy)
P0-public service level meets the 0 level of the international standard ISO rules; the code is omitted; does not indicate.
The P6-public service level meets the 6th level of the international standard ISO rules.
P6X-6X grade tapered roller bearings conforming to the international standard ISO rules.
The P5-public service level meets the 5th level of the international standard ISO rules.
P4 - The level of public service is in line with the international standard ISO level 4.
P2-Public service level meets the international standard ISO level 2 (excluding tapered roller bearings).
The SP-scale accuracy is equivalent to 5 steps; the rotation accuracy is equivalent to 4 (double row cylindrical roller bearings).
The UP-scale accuracy is equivalent to 4 levels; the rotation accuracy is higher than 4 (double row cylindrical roller bearings).
HG-scale accuracy is equivalent to 4; rotation accuracy is higher than 4; lower than 2 (spindle bearing).
(7) clearance
C1- clearance fits the standard rule group; less than 2 groups.
C2- clearance fits the two rules of the norm; less than 0.
C0- clearance fits the 0 group of the specification rules; the code is omitted; does not indicate.
C3- clearance fits the three rules of the norm; greater than 0.
4 groups of C4-play fit rules; greater than 3 groups.
5 groups of C5-play clearance rules; greater than 4 groups.
1) When the public service level code and the clearance code need to be indicated together; the combination of the public service level code (not indicated by P0 level) plus the upstream gap group number (not indicated by the 0 group) indicates.
Example: P63=P6+C3; indicates the bearing public service class P6; radial clearance 3 groups.
2) Non-standard clearance; where special radial clearance and axial clearance are required; the relevant limit values ​​shall be indicated by the number of microns after the letter R (radial clearance) or A (axial clearance); The numbers should be separated by small dots.
Example: 6210. R10. 20-6210 bearing; radial clearance 10 microns to 20 microns.
(8) Test the noise of the bearing
F3-low noise bearing. Mainly refers to cylindrical roller bearing and deep groove ball bearing with inner diameter d greater than 60 mm. Example: 6213. F3.
G-low noise bearing. Mainly refers to deep groove ball bearings with inner diameter d less than or equal to 60 mm. Example: 6207. G.
(9) Heat treatment
S0-bearing ring is treated by high temperature tempering; working temperature can reach 150 degrees Celsius.
The S1-bearing ring is treated by high temperature tempering; the working temperature can reach 200 degrees Celsius.
S2-bearing ring is treated by high temperature tempering; working temperature can reach 250 degrees Celsius.
S3-bearing ring is treated by high temperature tempering; working temperature can reach 300 degrees Celsius.
The S4-bearing ring is treated by high temperature tempering; the working temperature can reach 350 degrees Celsius.
(10) Special skill conditions
F. . - consecutive numbering of production skill conditions. Example: F80-bearing; outer diameter public and radial clearance tightening.
K. . - consecutive numbered viewing skill conditions. Example: K5-bearing; outer diameter public service tightening.
. ZB - Cylindrical roller with a crown diameter greater than 80 mm. Example: NU364. ZB.
. The convexity of the two ends of the ZB2-needle is greater than the usual skill requirements. For example: K18*26*20F. ZB2.
ZW-Double-row needle roller and cage assembly. Example: K20*25*40FZW.
. 700... with 70000 initial consecutive numbered skill conditions.
Z52JN. 790144-bearings can be used for high temperature and low speed; special heat treatment; steel plate stamping riveting cage; large clearance; phosphating treatment; grease; operating temperature can exceed 270 degrees Celsius.
Z52JN. 790191-bearings can be used for high temperature and low speed; through special heat treatment; steel plate stamping riveting cage; large clearance; phosphating disposal; grease injection; operating temperature up to 270 degrees Celsius.
(11) Paired bearings
1) Paired bearings that meet K-skill conditions; the following special skill conditions are related to paired bearings:
K1-two sets of deep groove ball bearings are paired to accept one-way axial load.
K2-two sets of deep groove ball bearings are paired to accept bidirectional axial loads.
K3-two sets of deep groove ball bearings according to the backrest-free device (O-type device).
K4-two sets of deep groove ball bearings are equipped with no-gap face-to-face device (X-type device).
K6-two sets of angular touch ball bearings are paired to accept one-way axial load.
K7-two sets of angular touch ball bearings according to the backlash-free device (O-type device).
K8-two sets of angular touch ball bearings according to the no-gap face-to-face device (X-type device).
K9-in; two sets of tapered roller bearings with spacers between the outer rings are paired to accept one-way axial loads.
K10-inside; two sets of tapered roller bearings with spacers between the outer rings are back-to-back devices without backlash (O-type device).
Two sets of tapered roller bearings with spacers between K11 and outer ring are equipped with no-gap face-to-face device (X-type device).
Bearings in pairs or groups; the required packaging words are delivered together; perhaps indicated as belonging to a pair. Bearings of different groups are not exchanged. When the device belongs to the same group of bearings; the device should be carried out according to the marking and positioning. Each pair of bearings shall be equipped with a certain amount of axial or radial clearance; the clearance shall be indicated after the K-skill condition as indicated in Article 1(2) of (7). For example; 31314A. K11. A100.140 shows two sets of 31314A single row tapered roller bearings; face-to-face device; the outer ring has a certain interval; the axial clearance of the bearing device is between 100 microns and 140 microns; the clearance after the device is zero.
2) Universal mating type bearing; optional (series; face-to-face or back-to-back) pairing device; post code UA; UO and UL.
. UA- has a small axial clearance when the bearings face to face or back to back.
. UO- no play when the bearing is face to face or back to back.
UL-light pre-interference in bearing face-to-face or back-to-back installations. For example; B7004. TPA. P4. K5. UL indicates that the spindle uses a touch angle ball bearing with a touch angle of 15 degrees; a phenolic laminated tube straight pocket solid cage; outer ring guide; bearing public service level 4; inner diameter and outer diameter public service contraction Resilience to the shackles of the scorpion stalks.
(12) smooth
L. . - Smooth grease. Example: L64 = Arcanol brand saponification grease.
L9. . - Smooth oil.
(13) Packaging
KS-metal plate container packaging.
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