English |
HOME JAJ PRODUCTS ABOUT JAJ SOLUTIONS NEWS CENTER TECHNICAL SUPPORT

JAJ BEARINGS

One of the advanced bearing
industry solution suppliers
all over the world
Homepage / JAJ Products / Cylindrical roller bearing

Cylindrical roller bearing

JAJ cylindrical roller bearing has a variety of design, series and sizes. Most of them are single bearing with holder. High performance bearing, single- row and double-row full roller bearings (no holder) make the JAJ standard bearings list more complete and more abundant.
Bearing with holder can bear radial load, rapid acceleration and high speed running. Full roller bearing contains the largest number of roller, so it is suitable for very heavy radial load at medium speed. JAJ efficient cylindrical roller bearing combines the high bearing capacity of the full bearing and high speed capacity of bearing with holder. 

The factors which impact JAJ cylindrical roller bearing performance and service life includes,  but not limited to the following:

The roller end/flange contact area
JAJ cylindrical roller bearings inner ring or outer ring has two integral lips to guide roller. Bearings have "open" flanges, the flange inside tends to a fixed angle. Roller end, flange design, roller end design, and surface finish cause to form lubricant film, in order to reduce the friction and the heat generated by the friction.

Roller Logarithmic contour
Roller contour decides roller/raceway contact areas stress distribution. Therefore, rollers of JAJ cylindrical roller bearing shows logarithmic contour, evenly distributing load of roller. This stops the stress peak value of roller end, in order to prolong the service life of bearing. Logarithmic contour is good to axial misalignment and shaft deflection.

Surface polishing
Roller and finish of raceway contact surface, to biggest extent, are conducive to hydraulic power lubrication film formation, and optimizing the roller rolling motion. Compared with the traditional design, its advantage includes improving the reliability of operation.

Interchangeable parts
JAJ cylindrical roller bearing components which are of the same size are interchangeable. Any bearing ring with roller and holder can be assembled with any bearing whose internal clearance level is the same .If the bearing and its components must be independently installed, it is particularly important.
JAJ cylindrical roller bearing includes basic type
Single row cylindrical roller bearings with holder, mainly are NU, NJ, NUP and N type
Double row cylindrical roller bearings with holder, mainly are NNU and NN type
Multiple row cylindrical roller bearings with holder
Single row full cylindrical roller bearing, mainly NCF and NJG type
Double row full cylindrical roller bearing, mainly NNF type

Multiple columns full cylindrical roller bearing, with four or eight row roller.
In addition to the standard bearings, JAJ cylindrical roller bearing products include
Single column high precision all steel or hybrid ceramic cylindrical roller bearing
Double columns high precision all steel or hybrid ceramic cylindrical roller bearing
Railway axle box use cylindrical roller bearing and the bearing unit
Single column cylindrical roller bearings used for railway traction motor
Back roll bearing used for multi roll  cold  rolling mill
Roller bearing used in continuous smelting furnace unit.
Other cylindrical roller bearings used in special applications have special electrical insulating coating, called INSOCOAT ® insulation bearing. For details of the bearing, please see our catalog of engineering products

Related Products

> Needle rolling thrust bearing
> Tapered roller bearing
> Trust ball bearing
> Self-aligning ball bearing
> Angular contact ball bearing
> Deep groove ball bearing

JAJ PRODUCTS

Deep groove ball bearing
Angular contact ball bearing
Self-aligning ball bearing
Trust ball bearing
Cylindrical roller bearing

ABOUT JAJ

JAJ history
JAJ promise
Caring environment
Contact JAJ

SOLUTIONS

Aerospace
Agriculture
Car and light truck
Compressor
Motor

TECHNICAL SUPPORT

Dimension, Tolerance, Clearance
Misalignment
Holder
Technical specification
Axial preload
ALL RIGHTS RESERVED | TERMS AND CONDITIONS | COOKIE
© 2014-2020 JAJ Bearings Ltd. All Rights Reserved.