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Xibei Bearing Co.,Ltd.

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Wind Power Bearing 112.80.2870

產品分類 :

服飾及紡織->配件->包包配件

產品規格

Model No:	112.80.2870

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

產品描述

Slewing
Ring Bearings


 


Slewing ring bearings can accommodate axial,
radial and moment loads acting either singly or in combination and in any
direction. So they are widely applied on engineering machinery (Mobile crane,
Tower type crane, Excavator, Loader), Metallurgical Machinery, Transport
Machinery, Medical instruments, etc. 


The
coding method of bearings 


The two coding methods of Slewing Ring
Bearings are as following:


1. Adopt the stipulation of JB/T2300
standard, which use raceway center circle diameter, rolling element diameter,
structure type, transmission type, assembly type and mounting hole type to show
the coding method of bearings.


<img src="file://C:/Users/liwj/AppData/Local/Temp/msohtmlclip1/01/clip_image001.gif" width="2" height="139" /><img src="file://C:/Users/liwj/AppData/Local/Temp/msohtmlclip1/01/clip_image002.gif" width="2" height="118" /><img src="file://C:/Users/liwj/AppData/Local/Temp/msohtmlclip1/01/clip_image003.gif" width="2" height="97" /><img src="file://C:/Users/liwj/AppData/Local/Temp/msohtmlclip1/01/clip_image004.gif" width="2" height="76" /><img src="file://C:/Users/liwj/AppData/Local/Temp/msohtmlclip1/01/clip_image005.gif" width="2" height="55" /><img src="file://C:/Users/liwj/AppData/Local/Temp/msohtmlclip1/01/clip_image006.gif" width="2" height="33" /> Slewing Ring ×× ×. ××.××××.  × 
×  JB/T 2300


<img src="file://C:/Users/liwj/AppData/Local/Temp/msohtmlclip1/01/clip_image007.gif" width="16" height="2" />                                     Mounting
hole type :0.1.2.3


<img src="file://C:/Users/liwj/AppData/Local/Temp/msohtmlclip1/01/clip_image008.gif" width="51" height="2" />                                     Assembly
type:0.1.2


<img src="file://C:/Users/liwj/AppData/Local/Temp/msohtmlclip1/01/clip_image009.gif" width="100" height="2" />                                  Raceway
center circle diameter


<img src="file://C:/Users/liwj/AppData/Local/Temp/msohtmlclip1/01/clip_image010.gif" width="128" height="2" />                                 Rolling
element diameter

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Transmission type:0.1.2.3.4


<img src="file://C:/Users/liwj/AppData/Local/Temp/msohtmlclip1/01/clip_image012.gif" width="177" height="2" />                                 Structure type:01.02.11.13


a.     Structure
type


     a.1 01---Single-row four point contact
ball slewing bearings;


     a.2 02---Double-row different diameter
ball slewing bearings, the combination of rolling element nominal diameter is
the above row/the under row: 25/20.30/25.40/30.50/40.60/50 ;


     a.3 11---single-row crossed cylindrical
roller slewing bearing, the rollers are 1:1 cross banding.


     a.4 
13- Three-row cylindrical roller slewing bearings, the combination of rolling
element nominal diameter is the above row/the under row/radial: 25/20/16.32/25/20.40/32/25.45/32/25.50/40/25.


b.    transmission
type


     b.1  
0-without gears


     b.2 
1-Involutes curve cylindrical gear ext-gear joggle small modulus.


     b.3 
2-Involutes curve cylindrical gear ext-gear joggle big modulus.


     b.4 
3-Involutes curve cylindrical gear Int-gear joggle small modulus.


     b.5 
4-Involutes curve cylindrical gear Int-gear joggle big modulus.


c.       assembly type


     c.1 
0-standard type without ring ridge


c.2  1-standard type with ring ridge


c.3  2-special type


d.    mounting
hole type


     d.1 
0-the mounting hole of inner ring and outer ring is through hole;


     d.2 
1-the mounting hole of inner ring and outer ring is tapped hole;


    
d.3  2-the mounting hole of inner
ring is tapped hole; the mounting hole of outer ring is through hole;


    
d.4  3-the mounting hole of outer
ring is tapped hole; the mounting hole of inner ring is through hole;


2. Adopt the stipulation of construction
industry JJ36.1.JJ36.2.JJ36.3 to show the coding method of
bearings.


2.1 Which use raceway center circle diameter, rolling
element diameter, tolerance classes, gear modulus, mounting hole type and gear
transmission type to show the coding method of bearings.


<img src="file://C:/Users/liwj/AppData/Local/Temp/msohtmlclip1/01/clip_image013.gif" width="2" height="76" /><img src="file://C:/Users/liwj/AppData/Local/Temp/msohtmlclip1/01/clip_image014.gif" width="2" height="34" /><img src="file://C:/Users/liwj/AppData/Local/Temp/msohtmlclip1/01/clip_image015.gif" width="2" height="97" /><img src="file://C:/Users/liwj/AppData/Local/Temp/msohtmlclip1/01/clip_image016.gif" width="2" height="118" /><img src="file://C:/Users/liwj/AppData/Local/Temp/msohtmlclip1/01/clip_image017.gif" width="2" height="160" />   <img src="file://C:/Users/liwj/AppData/Local/Temp/msohtmlclip1/01/clip_image018.gif" width="2" height="139" /><img src="file://C:/Users/liwj/AppData/Local/Temp/msohtmlclip1/01/clip_image019.gif" width="2" height="55" />    × × ×. ××××.××.  ×
×


<img src="file://C:/Users/liwj/AppData/Local/Temp/msohtmlclip1/01/clip_image020.gif" width="37" height="2" />                                                                  Tolerance
classes


<img src="file://C:/Users/liwj/AppData/Local/Temp/msohtmlclip1/01/clip_image021.gif" width="51" height="2" />                                                                  Gear
modulus


<img src="file://C:/Users/liwj/AppData/Local/Temp/msohtmlclip1/01/clip_image022.gif" width="88" height="2" />                                     Steel
ball nominal diameter     


<img src="file://C:/Users/liwj/AppData/Local/Temp/msohtmlclip1/01/clip_image023.gif" width="121" height="2" />Raceway center circle
diameter


<img src="file://C:/Users/liwj/AppData/Local/Temp/msohtmlclip1/01/clip_image024.gif" width="163" height="2" />Mounting hole type


<img src="file://C:/Users/liwj/AppData/Local/Temp/msohtmlclip1/01/clip_image012.gif" width="177" height="2" />                                         Gear
transmission type


<img src="file://C:/Users/liwj/AppData/Local/Temp/msohtmlclip1/01/clip_image025.gif" width="191" height="2" />                                      Structure
type


a.     structure
type


a.1 
Q- Single-row ball slewing bearings


a.2 
J-single-row crossed cylindrical roller slewing bearing


a.3 
Z-single-row crossed tapered roller slewing bearing


a.4 
S-Three-row cylindrical roller slewing bearings


b.     gear transmission type


b.1 
W-Ext-gear type


b.2 
N-Int-gear type


b.3 
U-Without gear type


c.     Mounting
hole type


c.1  A-the
mounting holes of inner ring and outer ring are all through hole;


 c.2 
B-the mounting holes of inner ring and outer ring are all tapped hole;


 c.3  C-the mounting hole of inner
ring is tapped hole; the mounting hole of outer ring is through hole;


 c.4 
D-the mounting hole of outer ring is through hole; the mounting hole of
inner ring is tapped hole;


d.    Tolerance
classes


 [G" indicates the precision class, without any
note is common class.


e.    Gear
modulus


  [A" indicates the big modulus of this
specification, without any note is small modulus of this specification.


   2.2 The old single-row crossed roller
slewing bearing which equipped on the existing machine is replaced by
single-row ball HSN/HSW slewing bearing, the connect dimension and gear modulus
remain unchangeable, which see in the JJ36.1standard appendix A and dimension
table of construction industry.


For example:
Int-gear type HSN1435.40A   Ext-gear type HSW1220.40


2.3
Inorder to satisfy the series specification
which specially supported the introduced goods, it should add [F-;R-"in
the front of code, which see in the JJ36.1standard appendix A and dimension
table of construction industry.


 
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