Contact Us


Rollers are the components bored with loads in bearing operation. They are also the weakest component whose quality will directly affect the bearing’s performance like rotating speed, vibration level and flexibility. It’s also the key element for service life of bearings. Based on different categories, rollers can be divided into spherical, tapered, cylindrical rollers. According to different precision level, they are divided into grade I, II and III. 

ZWA’s precision spherical roller bearings are with least grade II and raw materials are with European standard. The production capacity of ZWA is 80,000 to 100,000 piece monthly.

Applications of Bearing

Spherical Rollers

All of ZWA’s spherical rollers are Symmetrical with spherical fiducial surface.


Zero defect culture, customized production, European standard, advanced R&D center, physical& chemical labs inuring the raw material quality, super-finish grinding


Outer diameter from Φ20mm-Φ120mm

Multiple materials are available upon customers’ requests

Various face profiles are available, for example flat, center holes or dimples.

Raw Material

ZWA Bearing Recommendations
  • Four Row Tapered Roller Bearing

    Four Row Tapered Roller Bearing

    It is widely applied to low speed and medium speed rolling mills. The internal clearance is adjusted and makes it easier to operate.
  • Split Bearings

    Split Bearings

    Split roller bearings are specially designed based on the original spherical roller bearings and cylindrical bearings. The aim of split bearings is to solve the problem of quick replacement of bearings at unattainable positions or points. They are suitable for the application of lower rotating speed, higher load, shock loads, harsh working conditions and those positions where it is hard to access. ZWA’s split bearings include split spherical and split cylindrical roller bearings.
  • Toroidal Roller Bearing

    Toroidal Roller Bearing

    Toroidal roller bearings are kind of new single-row radial bearing. It has crowned symmetrical rollers and circular ring raceways.The rollers of the toroidal bearings are self-guiding, that’s to say they adjust the position in which the loads are averagely distributed over the length of the rollers no matter the inner ring is axial displaced or not. The raceways of the inner rings and outer rings are concave and arranged symmetrically about the center of the bearings.
ZWA Bearings would love to hear from you. Our knowledgeable sales staff will help guide you to the right bearing solution. Let our experts help! List your specifications and we will do our best to get you the product you need!
Contact Us
The Types of and Reasons for Bearing Noise
1. The mechanism of bearing noiseThe rolling bearing itself does not produce noise. The bearing noise is a kind of sound phenomenon caused by the vibration and collision of parts in the running proces...