Model:

NNU4148/K/HC/W33

Structure:

Double row Cylindrical roller

Type:

Roller Bearing

Inside Diameter:

240mm

Outside Diameter:

400 MM

Thickness:

160mm

Brand Name:

OEM&ZQM

Bore Size:

85KG

Material:

GCr15GCr15SiMnetc

Precision Rating:

P4 P5 P6 P0

Seals Type:

K/HC/W33

Cylindrical roller bearing is a kind of radial rolling bearing whose rolling body is cylindrical roller. 
Feature: 
Roller and roller path are line contact. Mainly sustain radial load. It is suitable for sustaining heavy load and impacting load. 
Small fictional factor, very suitable for high speed revolution. Its tripping speed is closed to the deep groove ball bearing's. 
N type and NU type can do axial movement. It can adapt the relative position change of axle and shell caused by thermal expansion and install deviation. Also it used in free end bearing. 
This kind of bearing actually call for the processing of the axle and block bore. 
The inner ring and outer ring can be separated, which is convenient for installing and taking down. 
Cage: Usually use stamping steel cage or copper alloy car system cage. Sometimes, use PA forming cage.