GGB BEARING CO., LTD.

NSK 6301 Bearing

 

Multi-Row Roller Bearings  

Multi-Row Roller Bearings are primarily designed and used as roll-neck bearings in rolling mills. The four rows of rollers lends itself to carry large radial loads for the given bearing cross section. Contoured rollers with tight diametrical tolerances maximize the ability of this bearing to evenly distribute the load to all four rows. Most common types include the use of a machined brass finger cage or a machined mild steel finger cage. No suffix is required for the brass cage but the SM suffix is used for the steel. In larger sizes, the use of a steel pin type cage with hollow rollers is standard. Many outer race and inner race configurations and design types are available to meet installation or interchangeability requirements. Most bearings are supplied with C4 Internal Radial Clearance and P5 Accuracy to perform well in these roll neck applications.

 

A big advantage of multi-row  roller bearings is their very high radial load capacity. Due to the large number of rolling elements the impact force is well distributed. The friction is lower than at other multi row bearing types. Multi row cylindrical roller bearings cannot absorb axial forces. However, in service an axial displacement is possible.

 

NTN  NN4932K Multi-Row Roller Bearings  
NTN  NN4932K Multi-Row Roller Bearings  
NTN 
NN4932K
NTN  NN3934 Multi-Row Roller Bearings  
NTN  NN3934 Multi-Row Roller Bearings  
118000 lbf
33.5
NTN  NNU4944 Multi-Row Roller Bearings  
NTN  NNU4944 Multi-Row Roller Bearings  
Shroud Seal
149.2 mm
NTN  NNU4926 Multi-Row Roller Bearings  
NTN  NNU4926 Multi-Row Roller Bearings  
Carbon Steel - Corro
No Fitting
NTN  NNU4948K Multi-Row Roller Bearings  
NTN  NNU4948K Multi-Row Roller Bearings  
6.0781 in
Spherical Roller
NTN  NNU3130 Multi-Row Roller Bearings  
NTN  NNU3130 Multi-Row Roller Bearings  
NTN 
NNU3130
NTN  NN4956 Multi-Row Roller Bearings  
NTN  NN4956 Multi-Row Roller Bearings  
0.02 KGS
In Stock
NTN  NN4936 Multi-Row Roller Bearings  
NTN  NN4936 Multi-Row Roller Bearings  
8.6250 in
5/8 in
NTN  NN4964 Multi-Row Roller Bearings  
NTN  NN4964 Multi-Row Roller Bearings  
LO609/ 1-7/16
4.5 Kg
NTN  NN3020K Multi-Row Roller Bearings  
NTN  NN3020K Multi-Row Roller Bearings  
15 °
9300
NTN  NNU3072 Multi-Row Roller Bearings  
NTN  NNU3072 Multi-Row Roller Bearings  
Standard
In Stock
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CYLINDRICAL ROLLER THRUST BEARINGS
Double Row Bearings
DOUBLE-ROW BEARINGS
DOUBLE-ROW CYLINDRICAL ROLLER BEARINGS
FOUR-ROW CYLINDRICAL ROLLER BEARINGS
FULL-COMPLEMENT CYLINDRICAL ROLLER BEARINGS
Multi-Row Roller Bearings  
Roll Bearings for Mills
Roller Bearings
ROLLING BEARINGS FOR STEEL MILLS
Sealed roll neck Bearings
SEALED-CLEAN FOUR-ROW BEARINGS
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