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Double-row cylindrical roller bearing NN3025WBK30/YADP4 is a special-designed type used for rod rolling mill. It is with a tapered bore and a retaining ring on one side. The inner ring is much higher than the outer ring. The precision reaches grade P4. 

Customized-type double row cylindrical roller bearing; 

Type Code: NN3025WBK30/YADP4 

Dimension: 126.3x200x130mm 

Customized type; With a brass retaining ring on one side. 

Cage: Special Brass Cage,

Inner Ring: tapered bore 1:30

Precision Grade: P4

Precision roller bearings used for rolling mills must be guaranteed both dimension accuracy and rotation accuracy.

Bearing dimensional accuracy (items related to the shaft and housing installation)

1. Allowable deviation of inner diameter, outer diameter, width, and assembly width

2. The allowable deviation of the diameter of the roller group

3. Allowable limit value of chamfer size

4. Allowable variation of width

Bearing rotation accuracy (items related to the runout of the rotating body)

1. Allowable radial runout and axial runout of the inner ring and outer ring

2. Allowable variation of the inclination of the outer diameter surface

3. Allowable variation of the thickness of the thrust bearing raceway

4. Allowable deviation and allowable variation of the tapered hole

Check more types of cylindrical roller bearings.

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