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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.

Split Cylindrical Roller Bearing Designation and Size Chart

Split Spherical Roller Bearing Designation and Size Chart

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
  • Full Complement Cylindrical Roller Bearings

    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.
  • Angular Contact Ball Bearings

    Angular Contact Ball Bearings

    Angular contact ball bearing, also known as acbb bearing, is a kind of inseparable bearing, the side shoulders of inner ring and outer ring are uneven. In order to increase the load capacity, one of the side shoulder will be lower than the other. This kind of bearings has raceways both on inner ring and outer ring.
  • Deep Groove Ball Bearings

    Deep Groove Ball Bearings

    Deep groove ball bearings, also known as DGBB bearing, are the typical rolling bearings which have the most widely application.
    Basic deep groove ball bearings of different sizes are made up of one inner ring, one outer ring, one cage and a group of balls. It can bear both radial and axial load capacity. Therefore, it can also be divided into axial deep groove ball bearing and radial deep groove ball bearing.
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!
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ZWA Showcases Cutting-Edge Mining Bearings at EXPONOR CHILE 2024
ZWA participated in EXPONOR CHILE 2024. Presenting our expertise in mining bearings with a focus on cutting-edge technology. The event garnered significant attention from industry professionals. Inclu...
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