| Home>Bearing knowledge>SKF bearing various types of association analysis |
SKF bearing various types of association analysis
Source: China Bearing Network Time: 2013-02-13
| /*250*250 was created on 2017/12/25*/ var cpro_id = 'u3171089'; |
-2F Spherical ball bearings with dust ring on both sides.
-2FF outer spherical ball bearing with combined dust ring on both sides.
G Universal pairing single row angular contact ball bearings. When placed face to face or back to back; there is a certain preload of the device in the bearing.
GA face to face; when placed back to back; there is a lighter preload in the bearing.
GB face to face; when placed back to back; medium preload in the bearing.
GC face to face; when placed back to back; heavy preload in the bearing.
K tapered hole; taper 1:12.
K30 tapered hole; taper 1:30.
-LS bearing has a touch seal on one side; there is no seal groove on the inner ring.
-2LS bearing has LS seal on both sides.
N bearing outer ring has a stop groove.
The NR bearing has a retaining groove on the outer ring and a snap ring.
There are two diametrically opposite notches on the N2 outer ring chamfer.
PP bearing (support roller bearing; cam follower bearing) has a touch seal on both sides.
The RS bearing (needle bearing) has a synthetic rubber or polyurethane touch seal on one side.
-RS1 bearing has a lining steel synthetic rubber touch seal on one side.
-2RS1 bearing has RS1 seal on both sides.
-2RS bearing (needle bearing) has RS seal on both sides.
-RZ bearing has a low-conflict seal on one side of the steel-lined synthetic rubber.
-2RZ bearing has RZ seal on both sides.
X 1. The fundamental scale has been revised to fit the ISO specification, 2. Cylindrical rolling surface (support roller bearing; cam follower bearing).
Z bearing has a dust cover on one side (non-conflicting seal).
-2Z bearing has a dust cover on both sides.
-ZN bearing has a dust cover on one side; there is a stop groove on the outer ring on the other side.
-2ZN bearing has a dust cover on both sides; the outer ring has a stop groove.
-2NR with -ZN; and with a snap ring.
-2ZNR with -2ZN; with a snap ring.
2. The internal depiction ACD touch angle is 25 degrees.
B The touch angle is 40 degrees.
The CC touch angle is 12 degrees.
The CD touch angle is 15 degrees.
BE BE bearing with a touch angle of 40 degrees; steel ball is enlarged; glass fiber reinforced nylon 6.6 cage.
Double row angular contact ball bearing A Specification of bearing with outer diameter less than or equal to 90 mm; no ball gap; glass fiber reinforced nylon 6. 6 cage.
E bearing has a ball-filling port on one side; it can hold more steel balls; therefore, it has high radial and axial bearing capacity.
Spherical roller bearings CAC; ECAC; CA; ECA These are depicted for large-scale bearings; the rollers are symmetrical.
CC; C; EC such bearing roller is symmetrical; the inner ring has no ribs.
E is SKF's selection of the latest specifications. The outer ring of the E-type bearing has an oil groove and three oil holes; then the rear code must be added with W; to show the difference.
Cylindrical roller bearing B bearing uses externally treated roller (full complement roller bearing).
B4 bearing ring outer surface and roller appearance are treated (full complement roller bearing).
The internal shape of the EC bearing has been improved; the bearing capacity is high; the rib and roller end face have excellent touch and smooth conditions; and can accept high axial load.
3. The public service level / CLN is equivalent to the ISO public service level 6X; for metric tapered roller bearings (width is reduced).
/CL0 is equivalent to ISO0 level public service; used for inch tapered roller bearings.
/CL3 is equivalent to ISO3 level public service; used for inch tapered roller bearings.
/CL7A tapered roller bearings that meet the specifications of the differential bearing.
/CL7C fits the differential bearing with a uniquely standardized tapered roller bearing.
/P4 scale and rotation accuracy meet ISO4 level public service (than P5 accuracy).
The /P4A scale accuracy is in line with ISO4 level public service; the rotation accuracy is equivalent to the AFBMA specification ABEC9.
/P5 scale rotation accuracy meets ISO5 level public service (accuracy is higher than P6).
The /PA9A scale and rotation accuracy are equivalent to the AFBMA specification ABEC9.
The /PA9B scale accuracy is equivalent to the AFBMA specification ABEC9; the rotation accuracy is higher than PA9A.
The /SP scale accuracy is about P5; the rotation accuracy is about P4.
/UP scale accuracy is about P4; rotation accuracy is higher than P4.
4. Bearing clearance / C1 clearance fits the standard group of rules; clearance is less than 2 groups.
The /C2 clearance fits the two groups of the specification rules; the clearance is less than 0.
/C0 Clearance fits the 0 group of the specification rules; the code is omitted; not marked.
The /C3 clearance fits the three groups of the specification rules; the clearance is greater than zero.
The /C4 clearance fits the 4 groups of the specification rules; the clearance is greater than 3 groups.
/C5 The clearance fits the 5 groups of the specification rules; the clearance is greater than 4 groups.
When the clearance code is combined with the bearing official code P4; P5 or P6; the clearance code C can be omitted.
Example: P6+C2=P62
5. Bearing equipment / DB Two pairs of single row deep groove ball bearings; single row angular contact ball bearings or single row tapered roller bearings in a back-to-back method paired device. The number after the DB indicates the axial clearance or the preload of the device.
A light preload (angular touch ball bearing).
B Preload is larger than A (angular touch ball bearing).
C preload is larger than B (angular touch ball bearing).
The internal clearance of CA is more than that of the wall.
CB internal clearance is larger than CA (deep groove or angular touch ball bearing).
CC internal clearance is larger than CB (deep groove ball bearing).
CG "zero" clearance (tapered roller bearings).
C... The number behind the unique axial internal clearance CC indicates the axial clearance.
GA lighter preload (deep groove ball bearing).
GB preload is greater than CA (deep groove ball bearing).
G... Unique preload (the number behind the G indicates the preload is large..
/DF Two face-to-face paired single row deep groove ball bearings; single row angular contact ball bearings or single row tapered roller bearings. DF can be followed by the same letter after DB.
/DT Two pairs of deep groove ball bearings placed in series; single row angular contact ball bearings or single row tapered roller bearings.
6. The cage is used to indicate the guiding method of the cage in the bearing; after the rear code of the cage, the letter A or BA may be used to indicate that the cage is guided by the outer ring, and B indicates that the cage is guided by the inner ring. The unillustrated cage is covered by the rolling body. guide.
F steel or a unique cast iron solid cage.
J steel plate stamping forming cage.
M light alloy solid cage.
MP brass solid cage.
P glass fiber nylon 6. 6 mold injection cage.
TN engineering plastic mold holder.
Y copper plate stamping forming cage.
V full roller bearing (without cage).
VH Full-roller bearing (cylindrical roller bearing) consisting of non-displacement roller assemblies. (3) Unique skill requirements.
/Q Best internal layout and appearance roughness (for tapered roller bearings).
The /Q66 oscillation level is less than the general specification; the oscillation peak is less than the general specification.
/QE5 fits the unique specification of the motor; the scale and rotation accuracy is up to P6. Very low noise.
/QE6 fits the specification of the motor; low noise.
7. The inner and outer rings of the heat-dissipating bearing are safely disposed of; they can be operated at the following temperatures:
/S0 is up to 150 degrees Celsius.
/S1 up to 200 degrees Celsius.
/S2 up to 250 degrees Celsius.
/S3 up to 300 degrees Celsius.
/S4 up to 350 degrees Celsius.
8. The smoothing agent is used to identify the type of smooth grease filled in the bearing. The post code consists of a letter group and two numbers; the letter indicates the temperature scale; the next two numbers indicate the actual smooth grease used; the common letter groups are as follows:
/HT high temperature grease (-20 degrees Celsius ~ +130 degrees Celsius).
/LHT Low/High Temperature Grease (-40 degrees Celsius ~ +140 degrees Celsius).
/LT low temperature grease (-50 degrees Celsius ~ +80 degrees Celsius).
/MT medium temperature grease (-30 degrees Celsius ~ 110 degrees Celsius).
The MT post-code indicates that the specific bearing uses non-standard grease. The amount of smooth grease in the bearing is not the same as the standard filling amount (25%~30% of the free space inside the bearing); it is identified by an additional letter:
A: The amount of smooth grease is less than the standard dosage.
B: The amount of smooth grease is greater than the standard dosage.
C: The amount of smooth fat is greater than B.
9. Smoothing agent compensation / W can not make up for smooth oil (no smooth oil groove and oil hole).
/W20 bearing outer ring has three smooth oil holes.
/W33 bearing outer ring has smooth oil groove and three oil holes.
/W33X bearing outer ring has smooth oil groove and six oil holes.
Recommend to friends comments close window
| Bearing related knowledge |
| Common terms for bearings (1) Bearing Knowledge Encyclopedia (6) Common bearing wear and the reason for engineering plastic bearing water pump bearings how to protect and protect? |
This article links to http://
Please indicate the bearing network http://
Previous:Micro-linear bearing type and use analysis Next: Skill analysis of high-speed spindle bearings for machine tools
Brass Cnc Machined Components,Brass Cnc Machining Parts,Cnc Machining Parts,High Precision Machining Components
Stand Dragon Industrial Co., Ltd. , https://www.standdragontw.com