Structural features:
Using high purity bearing steel or double vacuum high temperature resistant bearing steel for inner and outer rings, with a special heat treatment process, cold treatment process and material modification technology, greatly improve the fatigue life of this series of bearing.
The single and double row roller bearings both have the two types of cylindrical bore and tapered bore. On the main shaft, for adjusting easily the radial internal clearance and improve the rotation accuracy and radial stiffness of main shaft, generally use tapered bore bearing.

Two types of bearing cage:
Outer ring guided PEEK resin cage and rolling element guided copper alloy cage; Can be selected according to different uses.
The high-speed single row cylindrical roller bearing use PEEK cage; Limit temperature of 240ºС.
The double row cylindrical roller bearing use rolling element guided copper cage; Limit temperature of 300ºС.

Speed factor:
NN30 series copper alloy cage
Grease lubrication DmN≤650000 that the limiting speed N≤650000/Dm Dm—Bearing mean diameter
Oil (minimum quantity) lubrication DmN≤810000
N19, N10 series copper alloy cage
Grease lubrication DmN≤900000 that the limiting speed N≤900000/Dm Dm—Bearing mean diameter
Oil (minimum quantity) lubrication DmN≤1000000
N19; N10 series PEEK cage
Grease lubrication DmN≤1230000 that the limiting speed N≤1230000/Dm Dm—Bearing mean diameter
Oil (minimum quantity) lubrication DmN≤1430000
HCN10 series PEEK cage
Grease lubrication DmN≤1560000 that the limiting speed N≤1560000/Dm Dm—Bearing mean diameter
Oil (minimum quantity) lubrication DmN≤1820000

Applications:
Double row cylindrical roller bearing, suitable for main shaft of machine tool with high requirements of radial stiffness; Single row cylindrical roller bearing, suitable for main shaft of machine tool with high requirements of radial stiffness and speed.

For example:
CNC lathe spindle, CNC grinding wheel spindle, aircraft engine main shaft, precision transmission machinery, etc.

Rolling elements are either ceramic rollers, or ceramic balls that have been put through a process known as hot isostatic pressing. Full complement cylindrical roller ball bearings come without retainers. Angular contact ball bearings have retainers made from silver-plated high-strength alloy steel.