- Standard: ANSI, DIN, GB, JIS
- Material: Cast Steel
- Connection: Welding
- Manufacturing Way: Casting
- Size: 1/2" - 36"
- Transport Package: in Wooden Cases or Customers Requirements
- Origin: Chengdu Sichuan Province
- Type: Welding Flange
- Structure: Flanges
- Sealing Surface: RF
- Shape: Circle
- Trademark: Chengdu Derbo Steel
- Specification: CE, SGS, ISO
Product Name: ASME B16.5 Weld Neck 600# carbon steel A105 pipe flange with holes
Standard: AISI, DIN, JIS
Material: Carbon Steel & Stainless Steel & Inconel Alloy
Product Size: 1/2" - 36"
Pressure Ratings: ANSI Class 150, 300, 600, 900, 1500 and 2500
DIN PN 6, PN 10, PN16, PN25, PN40 and PN64
JIS 5K, 10K, 16K and 20K
Surface: Varnished transparent oil, rust-proof oil, hot galvanizing
Application: Construction, industrial material
PACKING: In wooden cases, wooden pallets or as per customers special requirement
Specifications
1. WN Flange, asme b16.5 Class150
2. High quality products
3. Compective price
4. Fast delivery
5. Certificate: ISO
Products Show
Quality Control
Our quality control department consists of experienced technicians. These personal strictly control the whole production procedure, from introduction of raw materials to finish products. They ensure high quality products for our customers.
Packaging & Delivery
Packaging Detail: In wooden cases, wooden pallets or as per customers special requirement
Delivery Detail: 7~25 Day
Your inquiry will be highly appreciated!
Please contact me without any hesitation if you are interested in our products!
We will offer warm-hearted service to you!
Cylindrical roller bearings
Cylindrical roller bearings are separable, easy to mount and dismount especially more outstanding when they are used on bearings requiring interference fit between inner and outer rings with the shaft and housing. Cylindrical Roller Bearing is contacted with the fair line between the rollers and the raceway, which is of elimination of edge stress. Comparing with the ball bearings, with same boundary dimensions, cylindrical roller bearings have larger radial carrying capacity. Comparing with structure, this type of bearing is more suitable for high speed rotation.
Structures
1. N0000 type cylindrical roller bearings without rib on outer ring and NU0000 type cylindrical roller bearings without rib on inner ring
These type of bearings can carry large radial load, rotate at a high speed, there is no limit to axial displacement on shaft or housing, but cannot withstand axial load.
2. NJ0000 and NF0000 types Cylindrical roller bearings with ribs on both of inner rings and outer rings
NJ0000 and NF0000 types of bearings can allow axial displacement on the shaft or housing and carry little single-direction axial load; NU0000+HJ0000 types and NUP0000 type bearings can allow two-direction displacement within axial clearance range on the shaft and housing and carry little double-direction axial load.
3. RNU0000 Type Cylindrical roller bearings without inner rings.
RNU0000 types of bearing are applicable to the parts with limitation on radial size. The shaft surface can be directly used as raceway surface, the hardness, processing precision and surface roughness should be similar to those of ring raceway.
4.NAL0000 type and NNAL0000 type of long cylindrical roller bearings with double ribs on outer rings are applicable to petroleum machinery.
5.Four-row cylindrical roller bearings FC,FCD and FCDP types are mainly applicable to heavy-duty machines, such as rolling mills. These bearing designations are different from general rule.
Cage material
When the outer diameter is less than (inclusive)400mm, solid brass cage or steel sheet are adopted for Single Row Cylindrical Roller Bearing. When the outer diameter is more than400mm, brass cage and pin-type cage are adopted for four row cylindrical roller bearing.
Permissible tilt angle
Generally the Cylindrical Roller Bearing shaft is not allowed to be tilted relative to the housing; while for single-row cylindrical roller bearings, when under light load, a relative2`tilt angle is allowed between the inner ring axial line and outer axial line. If the load is larger, the allowable error can be a little more, but should not exceed4`.
Tolerance and clearance
In accordance with requirement, Single row cylindrical roller bearings can be different tolerance classes. The tolerance value can be finding in the section Rolling Bearing Tolerance. For four row cylindrical roller bearings, the tolerance is normally P0, P6 and P5.
The Radial clearance of cylindrical roller bearing is as attached table 1.
Load-carrying capacity
The load-carrying capacity of cylindrical roller bearings with ribs on inner rings and outer rings are related to the magnitude of the radial load and lubrication methods. The maximum allowable axial load is as following:
Oil lubrication
Grease
lubrication
Fap<0.4Fr
Fap-(N);Maximum allowable axial load
K-Factors related to bearing size series
2.3 series K=0.2;
22.23 series K=0.16.
C0r-(N);Basic static load rating
ng-Fr>0.1Cr,
(r/min);For the limit rotational speed of a bearing carrying a purely radial load, when Fr>0.1Cr, use the speed reduction factor to compensate the limit rotational speed.
n-(r/min).Actual operating rotation speed
As the axial load given by the above formula and under the following conditions, bearing with tolerance class 0 (except improved and enhanced types) can function normally:
The temperature of oil lubricate is55℃and grease lubricate is40℃, the highest is90℃. (The viscosity of lubricate oil is ν50=30mm2/s, and the dropping point of lubricate grease is170℃.)
If the axial load is acted internally, the allowable axial load can be doubled; when acted temporally, the allowable load can be increased by 2 times.
Dynamic equivalent radial load
Pr=Fr
For the cylindrical roller bearing with axial load
2.3
To 2 and 3 series
Pr=Fr+0.3Fa (0≤Fa/Fr≤0.12)
Pr=0.94Fr+0.8Fa (0.12≤Fa/Fr≤0.3)
22.23
To 22,23 series
Pr=Fr+0.2Fa (0≤Fa/Fr≤0.18)
Pr=0.94Fr+0.53Fa (0.18≤Fa/Fr≤0.3)
Static equivalent radial load
P0r=Fr
Table 1 Radial clearance of cylindrical roller bearing with cylindrical bore
μm
|
Nominal bore diameter d mm |
C2 clearance |
Standard clearance |
C3 clearance |
C4 clearance |
C5 clearance |
||||||
|
Over |
To |
Min |
Max |
Min |
Max |
Over |
To |
Min |
Max |
Min |
Max |
|
10 24
30 40 50
65 80 100
120 140 160
180 200 225
250 280 315
355 400 450 |
10 24 30
40 50 65
80 100 120
140 160 180
200 225 250
280 315 355
400 450 500 |
0 0 0
5 5 10
10 15 15
15 20 25
35 45 45
55 55 65
100 110 110 |
25 25 25
30 35 40
45 50 55
60 70 75
90 105 110
125 130 145
190 210 220 |
20 20 20
25 30 40
40 50 50
60 70 75
90 105 110
125 130 145
190 210 220 |
45 45 45
50 60 70
75 85 90
105 120 125
145 165 175
195 205 225
280 310 330 |
35 35 35
45 50 60
65 75 85
100 115 120
140 160 170
190 200 225
280 310 330 |
60 60 60
70 80 90
100 110 125
145 165 170
195 220 235
260 275 305
370 410 440 |
50 50 50
60 70 80
90 105 125
145 165 170
195 220 235
260 275 305
370 410 440 |
75 75 75
85 100 110
125 140 165
190 215 220
250 280 300
330 350 385
460 510 550 |
65 70
80 95 110
130 155 180
200 225 250
275 305
370 410 455
510 565 625 |
- 90 95
105 125 140
165 190 220
245 275 300
330 365 395
440 485 535
600 665 735 |
Cylindrical Roller Bearing
Single Row Cylindrical Roller Bearing,Double Row Cylindrical Roller Bearing,Three Row Cylindrical Roller Bearing,Four Row Cylindrical Roller Bearing
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