產品資訊 - Cylindrical Roller Bearing NU1064->handbag accessories

登入

加入會員

求助

Xibei Bearing Co.,Ltd.

	Recommended Results

Cylindrical Roller Bearing NU1064

產品分類 :

服飾及紡織->配件->包包配件

產品規格

Model No:	NU1064

Country	CN
Brand	NXZ
Packing	Standard Export Package
Payment Term	L/C,T/T

產品描述

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


        <img src="file://C:/Users/liwj/AppData/Local/Temp/msohtmlclip1/01/clip_image004.gif" width="123" height="40" />       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

<table class="MsoNormalTable" style="border:none;" cellspacing="0" cellpadding="0" border="1">
<tbody>
<tr>
<td colspan="2" style="border:solid windowtext 1.0pt;" width="97">

Nominal bore diameter  d


mm

</td>
<td colspan="2" style="border:solid windowtext 1.0pt;" width="84">

C2
clearance

</td>
<td colspan="2" style="border:solid windowtext 1.0pt;" width="84">

Standard
clearance

</td>
<td colspan="2" style="border:solid windowtext 1.0pt;" width="82">

C3


clearance

</td>
<td colspan="2" style="border:solid windowtext 1.0pt;" width="76">

C4


clearance

</td>
<td colspan="2" style="border:solid windowtext 1.0pt;" width="77">

C5
clearance

</td>
</tr>
<tr>
<td style="border:solid windowtext 1.0pt;" width="48">

Over

</td>
<td style="border:solid windowtext 1.0pt;" width="49">

To

</td>
<td style="border:solid windowtext 1.0pt;" width="35">

Min

</td>
<td style="border:solid windowtext 1.0pt;" width="49">

Max

</td>
<td style="border:solid windowtext 1.0pt;" width="37">

Min

</td>
<td style="border:solid windowtext 1.0pt;" width="47">

Max

</td>
<td style="border:solid windowtext 1.0pt;" width="47">

Over

</td>
<td style="border:solid windowtext 1.0pt;" width="35">

To

</td>
<td style="border:solid windowtext 1.0pt;" width="35">

Min

</td>
<td style="border:solid windowtext 1.0pt;" width="41">

Max

</td>
<td style="border:solid windowtext 1.0pt;" width="35">

Min

</td>
<td style="border:solid windowtext 1.0pt;" width="42">

Max

</td>
</tr>
<tr>
<td style="border:solid windowtext 1.0pt;" width="48">

 


10


24


 


30


40


50


 


65


80


100


 


120


140


160


 


180


200


225


 


250


280


315


 


355


400


450

</td>
<td style="border:solid windowtext 1.0pt;" width="49">

10


24


30


 


40


50


65


 


80


100


120


 


140


160


180


 


200


225


250


 


280


315


355


 


400


450


500

</td>
<td style="border:solid windowtext 1.0pt;" width="35">

0


0


0


 


5


5


10


 


10


15


15


 


15


20


25


 


35


45


45


 


55


55


65


 


100


110


110

</td>
<td style="border:solid windowtext 1.0pt;" width="49">

25


25


25


 


30


35


40


 


45


50


55


 


60


70


75


 


90


105


110


 


125


130


145


 


190


210


220

</td>
<td style="border:solid windowtext 1.0pt;" width="37">

20


20


20


 


25


30


40


 


40


50


50


 


60


70


75


 


90


105


110


 


125


130


145


 


190


210


220

</td>
<td style="border:solid windowtext 1.0pt;" width="47">

45


45


45


 


50


60


70


 


75


85


90


 


105


120


125


 


145


165


175


 


195


205


225


 


280


310


330

</td>
<td style="border:solid windowtext 1.0pt;" width="47">

35


35


35


 


45


50


60


 


65


75


85


 


100


115


120


 


140


160


170


 


190


200


225


 


280


310

<p class="MsoNormalIndent" style="text-align:center;text-

其他類似產品