.

Double Row Cylindrical Roller Bearing

Bearing Double Row

The rollers of two-row cylindrical roller bearings are crossing arranged. While rotating, the wave ratio is one time higher than single-row cylindrical roller bearings. However, the vibration ratio decreases 70%. And due to its two-row roller arrangement, compared with single-row cylindrical roller bearings, they are able to bear extremely higher load capacity.

Based on the different bore types, ZWA’s double-row cylindrical roller bearings are divided into two types, one is with cylindrical bore and the other is with a tapered bore. Based on a different arrangement of flanges on the inner ring and outer ring, and also the cage design, ZWA’s double-row cylindrical roller bearings are divided into NNU, NN, and NNUP types. For NNU type, there are ribs on both sides of the outer ring but no ribs on the inner ring. For NN type, there are ribs on both sides of the inner ring but no ribs on the outer ring. For NNUP type, there ribs on both sides of the outer ring, and ribs on one inner ring. While mounting the NNUP types, do make the marked ribs outward. In general, NU and NN type are used on the free end and NUP types on fixed end.

ZWA offers double row roller bearingboth with machined brass and steel cages. With continuous efforts in improving on the quality, ZWA has helped the customers realized the following goals by providing two-row cylindrical roller bearings:

Reduce the cost

Increase productivity

Prolong the equipment service life

Improve the sustainability

The features of two-row cylindrical roller bearings are as follows

Compact internal structure

Higher stiffness

Higher load capacity ability

Small deformation after high load

Lower friction

Longer service life

Improve the operational reliability

Separable and interchangeable

High-speed ability

Application of two-row cylindrical roller bearings are as follows:

The spindle of tooling machine, rolling mills, gearboxes, grinding machines and so on.

ZWA Bearing Recommendations

Full Complement Cylindrical Roller Bearings

Full complement cylindrical roller bearing is a kind of cylindrical roller bearing designed without cages. In this design, the number of rollers are the biggest in all the bearings types.

Four Row Cylindrical Roller Bearing

Four-row cylindrical roller bearings are kind of separable bearings. The rings and roller components are easily separable.

Single Row Cylindrical Roller Bearing

Single row cylindrical roller bearings with cages are part of radial roller bearings. Compared with the ball bearings’ balls, the rollers have a bigger contact to the roller axle.

If you want to know more about double row bearing size chart, please visit our website.

As a bearing company, we will do our best to meet all the needs of customers.



Send product request

To: DLAIAN GUANGYANG BEARING CO., LTD
Your E-mail:
Message text:


Send to other suppliers

Other supplier products

Double Row Tapered Roller Bearing
Double Row Tapered Roller Bearing The outer ring or inner ring of double taper roller bearingis a whole unit. ZWA’s two-row tapered roller bearings can be divided into metric ...
Single Row Spherical Roller Bearing
Single Row Spherical Roller Bearing Single row spherical roller bearingare self-retaining radial roller bearings. They also belong tp s;elf-aligning bearings. Benefit from the concav...
Toroidal Roller Bearing
Toroidal Roller Bearing Toroidal roller bearingare kind of new single-row radial bearing. It has crowned symmetrical rollers and circular ring raceways.The rollers of the ...
Double Row Cylindrical Roller Bearing
Double Row Cylindrical Roller Bearing The rollers of two-row cylindrical roller bearings are crossing arranged. While rotating, the wave ratio is one time higher than single-row cylindr...
Toroidal Roller Bearing
Toroidal Roller Bearing toroidal roller bearing carb toroidal roller bearings Toroidal roller bearings are kind of new single-row radial bearing. It has crowned symmet...
All supplier products

Same products

Double Row Cylindrical Roller Bearing
Double Row Cylindrical Roller Bearing Seller: DLAIAN GUANGYANG BEARING CO., LTD Bearing Double Row The rollers of two-row cylindrical roller bearings are crossing arranged. Whi...