Description:Braided Packing includs many kinds such as PTFE,Graphite,Kevlar fiber,Carbon fiber etc,they are the perfect material for door seals or caulking for ovens, furnaces and boilers, expansion joints, cable or pipe wrapping, high temperature seals or gaskets. These products have been widely used in welding, foundry works, aluminum and steel mills, boiler insulation and seal, exhaust systems, shipyards, refineries, power plants and chemical plants. Braided Packing are also used as the core in tadpole gaskets. The three different styles are designed to fit different application needs: twisted rope is a soft rope, while square and round braid are more dense and solid.
Clean, non-contaminating and Long maintenance free service life
Save money and time.
Braided Packing Braided Packing,Non Asb Graphite Braided Packing,Flexible Graphite Braided Gland Packing,Aramid Fiber Square Braid Packing HEBEI HENGDA SEALING MATERIALS CO.,LTD. , https://www.hengdasealing.com
/*728*90 created on 2018/5/16*/ var cpro_id = "u3440131"; Home>Bearing knowledge>Fine-SKF bearing type search Precision-SKF bearing type search
The full name of SKF is "Svenska Kullager-Fabriken" Chinese transliteration name "SKF"; SKF bearing is the bearing produced by SKF; bearing profession in the world; adhere to leadership position. Let us go into SKF; deepen know Look at its type type: /*250*250 was created on 2017/12/25*/ var cpro_id = 'u3171089';
(1) Internal depiction
The 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; the steel ball is enlarged; the glass fiber reinforced nylon 6.6 is adhered to the frame.
Double row angular touch 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 holding frame.
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 bearing
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 Bearings
B bearings use externally treated rollers (full complement roller bearings).
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.
(2) External depiction
CA; CB; CC universal matching single row angular touch ball bearing; optional (series; face to face or back to back) pairing device. When back to back or face to face; axial device front internal clearance to normal value ratio: .CA); normal ( CB); larger (CC).
-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.
(3) Persistence frame in order to indicate the guiding method of the bracket in the bearing; after the post code of the frame, the letter A or BA may be added to indicate that the frame is guided by the outer ring, and B indicates that the frame is guided by the inner ring. Guided by the roll body.
F steel or unique cast iron body adheres to the frame.
J steel plate stamping forming frame.
M light alloy solids adhere to the frame.
MP brass solids adhere to the frame.
P glass fiber nylon 6. 6 mold injection frame.
TN engineering plastic mold sticking frame.
Y copper plate stamping forming frame.
V full roller bearing (no support).
VH Full-roller bearing (cylindrical roller bearing) consisting of non-displacement roller assemblies.
(4) Other characteristics
1) Public service level
/CLN is equivalent to ISO public service grade 6X; used for metric tapered roller bearings (width reduction is common).
/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.
2) Bearing clearance
The /C1 clearance fits the set of rules; the play is less than 2 sets.
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; does not indicate.
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
3) Unique skill needs.
/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.
4) 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 pairs with back-to-back method. The number after 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.
5) Heat treatment. The inner and outer rings of the 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.
6) Make up for the smoothing agent.
/W can't 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.
7) Smoothing agent. The post code used to identify the type of smooth grease filled in the bearing consists of a letter group and two numbers; the letters indicate the temperature scale; the next two numbers indicate the smooth grease actually 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.
8) Other characteristics. The letter V and another letter (such as VA) are combined with three numbers; used to identify variants that cannot be represented by existing other post-codes. For example:
/VA201 kiln car bearing.
/VA301 Cylindrical roller bearings for traction motors.
Recommend to friends comments close window Bearing related knowledge Bearing product rust is the result of abnormal damage to the hub bearing by the bearing equipment method of selecting polyurethane coated nonmarking bearings
NTN self-aligning ball bearing features
This article links to http://
Please indicate the bearing network http://
Previous:Expansion of koyo bearing utilization and smoothing agent replacement Next: How to properly protect and protect SKF bearings
Features
Precision-SKF bearing type search
Source: China Bearing Network Time: 2018-07-28