Structure: Cylindrical
Type: Roller
Brand name: KGS
Model number: NU2309
Bore size: 45mm
Outside diameter: 100mm
Seals type: Open
Number of row: Single row

Introduction
Cylindrical roller bearings is entad rolling bearings whose rolling element is cylindrical rollers.

Application fields
Large and medium-sized motor, locomotives, spindle, internal combustion engines, generators, gas turbines, reducer, rolling mill, vibrating screen and lifting transportation machinery.

NU2309 cylindrical roller bearing  Description:

Full complement cylindrical roller bearings have solid inner and outer

rings and rib guided cylindrical rollers. Since these bearings have

the largest possible number of rolling elements, they have extremely high

radial load carrying capacity, high rigidity and are suitable for particularly

compact designs. Due to their kinematic conditions, however, they

cannot achieve the high speeds that are possible when using

cylindrical roller bearings with cage.

These bearings are divided into R, RH(R) and RHA types, which differ in internal structure.

High performance bearing supports
High overall equipment efficiency
More economical bearing supports due to downsizing
Lower operating costs
Up to 70% longer operating life under the same loads
Equal operating life under significantly higher loads
High static safety

Lubricant is subjected to less strain due to less friction and lower bearing temperatures

1) The property  requirement of the material  for the motional bearing :

 1. High contact tiredness strength

 2. Good nature of wear resistant

 3. High elasticity limitation

 4. Appropriate hardness

 5. Some toughness

 6. Good specification stability

2) Requirement on smelting for bearing steel

 1.  Carbon content :  about  1 %  (0.95-1.05 )

 2.  Chrome content : about  1.5 % ( 1.3-1.65 )

 3) Common damage of  motional bearing
 1. Indentation
 2. Abrade
 3. Galvanic Corrosion
 4. Corrosion
 5. Broken of retainer 

4) Lubrication of motional bearing

1. Oil lubrication

2. Grease lubrication

3. Solid lubrication

NU2309 cylindrical roller bearing Features :  

1) Separable

2) As the roller linearly comes into contact with inner ring and outer

  ring with less coefficient of friction,  these bearings have very good

capacity of radial load