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 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.In addition, ZWA also provides customers with double row ball bearing chartof different double row ball bearing number, as well as types of rolling contact bearing.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.
在线联系供应商
Other supplier products
 |
Deep Groove Ball Bearings | Deep Groove Ball Bearings Deep groove ball bearings are the typical rolling bearings which have the most widely application. Basic deep groove bal... |
 |
Thrust Ball Bearings | Radial thrust ball bearing, also known as tbb bearing, is one of the rotary ball bearings. It owns the same features of other ball bearings, i.e pe... |
 |
Thrust Spherical Roller Bearings | Thrust spherical roller thrust bearings are a kind of separable bearings with rolling-element bearing of thrust type. With this feature, it’s... |
 |
Tapered Roller Thrust Bearing | Tapered roller thrust bearingare composed of shaft washer, housing washer, cage and tapered rollers. The design of tapered roller thrust bearings i... |
 |
Split Bearings | Split spherical bearingare specially designed based on the original spherical roller bearings and cylindrical bearings. The aim of split bearings i... |
Same products
 |
Washable Cheap 13.56Mhz 213 Nfc Mini Stickers 13.56 Mhz RFID Label Sticker Tag HF/UHF Tags Dry Inlay | 卖方: XIUCHENG RFID | ize：On request Material:PET, PVC,paper or customized Frequency:UHF/HF Printing:Thermal transfe... |
 |
Micronized wax used for industrial paint processing | 卖方: Syntop chemical Co.,Ltd. | Micronized wax is a vital functional additive in industrial paint processing, with primary functi... |
 |
Plant Growth Regulator Manufacturer | 卖方: HEBEI LAIKE BIOTECH CO.LTD | Plant Growth Regulator Manufacturer Plant Growth Regulator Manufacturer - Laike Biotech spec... |
 |
Fungicide Supplier | 卖方: HEBEI LAIKE BIOTECH CO.LTD | Fungicide Supplier Wholesale Fungicide - Laike Biotech is a professional supplier and manufa... |
 |
Fungicide Supplier | 卖方: HEBEI LAIKE BIOTECH CO.LTD | Fungicide Supplier Wholesale Fungicide - Laike Biotech is a professional supplier and manufa... |
