Double Row Cylindrical Roller Bearing
The rollers of double row roller bearingare crossing arranged. While rotating, the wave ratio is one time higher than single-row cylindrical roller bearings but vibration ratio decrease 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 cylindrical roller bearing both 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.
Do you know what is double row ball bearing size chart?
As the ball bearing manufacturers. If you want to get the double row ball bearing chart, please contact us.
在线联系供应商
Other supplier products
 |
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 bi... |
 |
Single Row Tapered Roller Bearing | Single row tapered roller bearingas the most widely used tapered roller bearings consist of one outer ring, and one inner ring unit. The inner ring... |
 |
Thrust Spherical Roller Bearings | Spherical roller thrust bearingare a kind of separable bearings with rolling-element bearing of thrust type. With this feature, it’s possible... |
 |
High Quality Ball Bearings Manufacturer | Ball bearings are a part of rolling bearings. Compared with roller bearings, types of radial ball bearingare point contact. Based on this, the obst... |
 |
Cylindrical Roller Thrust Bearing | Cylindrical roller thrust bearingsconsist of rollers, cage components, shaft ring and housing ring. Those components are separable which makes the ... |
Same products
 |
Plastic rubber extruder gearbox bearings F-53579-T3AR | 卖方: JinHang Precision Bearing Co.,LTD | Bearing factory Number： F-53579-T3AR Item code： F-53579-T3AR Stock qty:150PCS Shipping term:By... |
 |
Multi-stage Tandem bearing with shaft or sleeve F-52978.T4AR | 卖方: JinHang Precision Bearing Co.,LTD | Bearing factory Number：F-52978.T4AR Item code： F-52978.T4AR Stock qty:150PCS Shipping term:By DHL... |
 |
Drum Forging | 卖方: Shandong Runchi Machinery Technology Co., Ltd | Drum Forging Drum Forging Brand origin: Runchi shandong Processing ability: turning, milling, pla... |
 |
Wheel Hub Forging | 卖方: Shandong Runchi Machinery Technology Co., Ltd | Wheel Hub Forging Wheel Hub Forging Main features: [Manufacturing Standards] Strictly produce for... |
 |
Nozzle Forging Nozzle | 卖方: Shandong Runchi Machinery Technology Co., Ltd | Nozzle Forging Nozzle Forging Brand origin: Runchi shandong Processing ability: turning, milling,... |
