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  NN3056K Multi-Row Roller Bearings  
NTN  NN3056K Multi-Row Roller Bearings  
Nylon
Uncoated
NTN  NNU4976K Multi-Row Roller Bearings  
NTN  NNU4976K Multi-Row Roller Bearings  
55 mm
Open
NTN  NN3930 Multi-Row Roller Bearings  
NTN  NN3930 Multi-Row Roller Bearings  
Uncoated
2820
NTN  NNU39/800 Multi-Row Roller Bearings  
NTN  NNU39/800 Multi-Row Roller Bearings  
C4
0.02 KGS
NTN  NNU3034K Multi-Row Roller Bearings  
NTN  NNU3034K Multi-Row Roller Bearings  
200 mm
Open
NTN  NNU4932 Multi-Row Roller Bearings  
NTN  NNU4932 Multi-Row Roller Bearings  
No Fitting
1.750 in
NTN  NNU3072 Multi-Row Roller Bearings  
NTN  NNU3072 Multi-Row Roller Bearings  
180 mm
Metal manufacturing,
NTN  NNU3948 Multi-Row Roller Bearings  
NTN  NNU3948 Multi-Row Roller Bearings  
Round
.5000 in
NTN  NN3964K Multi-Row Roller Bearings  
NTN  NN3964K Multi-Row Roller Bearings  
Dry 0.40;Period
BCB
NTN  NN3036 Multi-Row Roller Bearings  
NTN  NN3036 Multi-Row Roller Bearings  
0.02 KGS
130mm
NTN  NN3960K Multi-Row Roller Bearings  
NTN  NN3960K Multi-Row Roller Bearings  
2.0000 in
UC211-32
NTN  NNU3030 Multi-Row Roller Bearings  
NTN  NNU3030 Multi-Row Roller Bearings  
5.5938 in
4547359473285
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Product Categories
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
SKF 7309 Bearing
Koyo 6207 Bearing
Dac3055w Bearing
Koyo 6306 Bearing