ABOUT US

WZA

WZA was founded in Jinan, Shandong, cradle of bearings in China. Since its set up in 1998, WZA has adhere to the principle of quality and credit first, and strive to develop to the most refined enterprises rather than the biggest enterprises alone specialized production road. Dedicated to research and development of P6 grade Spherical Roller Bearing. WZA provides the highest quality products and services rely on professional knowledge, abundant produce experience, the most advanced technology, precise equipment and strict control.

We also manufacture and export all types bearings export and world service. WZA has produced tens of thousands high-quality bearing to the customers from metallurgical equipment, mining, cement, paper, petroleum energy, wind energy and machine tools extra. Our product has been sold to United States, Brazil, Italy, South Korea, Iran, Spain, Turkey and India extra. WZA has become an excellent supplier for many famous enterprises at home and abroad.

Our Advantages

  1. WZA strictlycontrols the quality of every bearing from the first step drawing design to the last step products delivery, accompany with 100% test right to ensure every bearing perfect, concise and accurate.
  2. WZA adopts high-quality Chrome steel with high purity and conducts rigoroustests to verify the quality.
  3. Spheroid zing annealing is adopted for all WZA products, which ischaracterized by product temperature uniformity and good internal structure, laying a good foundation for the next process of turning and hardening. Adopt advanced Bainite heat treatment
  4. CNC is used for fine grinding to ensure that the product can reach up to P6level in geometric precision and accuracy.
  5. Fault detection: 100% detection is executed for cracks flaw in components of bearings. Make continuous improvement in accordance with quality system

Main Products

Spherical Roller Bearing MB Type

Higher cost-effectiveness and operational security with Long-life

WZA spherical roller bearings have proved highly effective wherever high loads are present and there is a need to compensate for shaft deflections and misalignment of bearing seats. The previous designs of spherical roller bearings were already characterized by high performance capacity. This has now been surpassed to a significant degree by WZA spherical roller bearings MB developed in accordance with the new concept. In MB bearings, the radial and axial load carrying capacity as well as the security against ring breakage has been increased, while the bearing temperature has been reduced. This has given higher operational security and also higher cost-effectiveness.

–High Quality Material:

–GCr15/GCr15SiMn/G20Gr2Ni4A/Stainless Steel

–Heat treatment of Bainite

–German grinding process secondary tempering stability.

–The whole series of high-precision production P6 P5 level

213 series: from 21305 to 21340

222 series: from 22205 to 22272

223 series: from 22308 to 22380

230 series: from 23020 to 23096 230/500 230/530 230/600 230/670 230/710 230/750

230/800 230/850 230/900 230/950 230/1000 230/1060 230/1250

231 series: from 23120 to 23196 231/500 231/530 231/560 231/600 231/630 231/670

231/710 231/750 231/800 231/850 231/1000

232 series: from 23218 to 23296 232/500 232/530 232/560 232/600 232/630 232/670

232/710 232/750

238 series: 238/630 238/670 238/710 238/750 238/800 238/850 238/1000 238/1060

238/1180

239 series: from 23936 to 23996 239/500 239/530 239/560 239/600 239/630 239/670

239/710 239/750 239/800 239/850 239/900 239/950 239/1060 239/1180

240 series: from 24020 to 24096 240/500 240/530 240/560 240/600 240/630 240/670

240/710 240/750 240/800 240/850 240/900 240/950 240/1060 240/1120

241 series: from 24120 to 24196 241/500 241/530 241/560 241/600 241/630 241/670

241/710 241/750 241/800 241/850 241/900 241/950 241/1000

248 series: 24892 248/530 248/670 248/800 248/900 248/1060 248/1120 248/1180

248/1320 248/1500 248/1800

249 series: 249/710 249/750 249/800 249/850 249/950 249/1000 249/1060 249/1120

249/1180 249/1320

Spherical Roller Bearing CC Type

Higher cost-effectiveness and operational security with Long-life

WZA spherical roller bearings have proved highly effective wherever high loads are present and there is a need to compensate for shaft deflections and misalignment of bearing seats. The previous designs of spherical roller bearings were already characterized by high performance capacity. This has now been surpassed to a significant degree by WZA spherical roller bearings CC developed in accordance with the new concept. In CC bearings, the radial and axial load carrying capacity as well as the security against ring breakage has been increased, while the bearing temperature has been reduced. This has given higher operational security and also higher cost-effectiveness.

–High Quality Material:

–GCr15/GCr15SiMn/G20Gr2Ni4A/Stainless Steel

–Heat treatment of Bainite

–German grinding process secondary tempering stability.

–The whole series of high-precision production P6 P5 level

213 series: from 21305 to 21340

222 series: from 22205 to 22272

223 series: from 22308 to 22380

230 series: from 23020 to 23096 230/500 230/530 230/600 230/670 230/710 230/750

230/800 230/850 230/900 230/950 230/1000 230/1060 230/1250

231 series: from 23120 to 23196 231/500 231/530 231/560 231/600 231/630 231/670

231/710 231/750 231/800 231/850 231/1000

232 series: from 23218 to 23296 232/500 232/530 232/560 232/600 232/630 232/670

232/710 232/750

238 series: 238/630 238/670 238/710 238/750 238/800 238/850 238/1000 238/1060

238/1180

239 series: from 23936 to 23996 239/500 239/530 239/560 239/600 239/630 239/670

239/710 239/750 239/800 239/850 239/900 239/950 239/1060 239/1180

240 series: from 24020 to 24096 240/500 240/530 240/560 240/600 240/630 240/670

240/710 240/750 240/800 240/850 240/900 240/950 240/1060 240/1120

241 series: from 24120 to 24196 241/500 241/530 241/560 241/600 241/630 241/670

241/710 241/750 241/800 241/850 241/900 241/950 241/1000

248 series: 24892 248/530 248/670 248/800 248/900 248/1060 248/1120 248/1180

248/1320 248/1500 248/1800

249 series: 249/710 249/750 249/800 249/850 249/950 249/1000 249/1060 249/1120

249/1180 249/1320

Spherical Roller Bearing CA Type

Higher cost-effectiveness and operational security with Long-life

WZA spherical roller bearings have proved highly effective wherever high loads are present and there is a need to compensate for shaft deflections and misalignment of bearing seats. The previous designs of spherical roller bearings were already characterized by high performance capacity. This has now been surpassed to a significant degree by WZA spherical roller bearings CA developed in accordance with the new concept. In CA bearings, the radial and axial load carrying capacity as well as the security against ring breakage has been increased, while the bearing temperature has been reduced. This has given higher operational security and also higher cost-effectiveness.

–High Quality Material:

–GCr15/GCr15SiMn/G20Gr2Ni4A/Stainless Steel

–Heat treatment of Bainite

–German grinding process secondary tempering stability.

–The whole series of high-precision production P6 P5 level

213 series: from 21305 to 21340

222 series: from 22205 to 22272

223 series: from 22308 to 22380

230 series: from 23020 to 23096 230/500 230/530 230/600 230/670 230/710 230/750

230/800 230/850 230/900 230/950 230/1000 230/1060 230/1250

231 series: from 23120 to 23196 231/500 231/530 231/560 231/600 231/630 231/670

231/710 231/750 231/800 231/850 231/1000

232 series: from 23218 to 23296 232/500 232/530 232/560 232/600 232/630 232/670

232/710 232/750

238 series: 238/630 238/670 238/710 238/750 238/800 238/850 238/1000 238/1060

238/1180

239 series: from 23936 to 23996 239/500 239/530 239/560 239/600 239/630 239/670

239/710 239/750 239/800 239/850 239/900 239/950 239/1060 239/1180

240 series: from 24020 to 24096 240/500 240/530 240/560 240/600 240/630 240/670

240/710 240/750 240/800 240/850 240/900 240/950 240/1060 240/1120

241 series: from 24120 to 24196 241/500 241/530 241/560 241/600 241/630 241/670

241/710 241/750 241/800 241/850 241/900 241/950 241/1000

248 series: 24892 248/530 248/670 248/800 248/900 248/1060 248/1120 248/1180

248/1320 248/1500 248/1800

249 series: 249/710 249/750 249/800 249/850 249/950 249/1000 249/1060 249/1120

249/1180 249/1320

Spherical Roller Bearing E Type

Higher cost-effectiveness and operational security with Long-life

WZA spherical roller bearings have proved highly effective wherever high loads are present and there is a need to compensate for shaft deflections and misalignment of bearing seats. The previous designs of spherical roller bearings were already characterized by high performance capacity. This has now been surpassed to a significant degree by WZA spherical roller bearings E developed in accordance with the new concept. In E bearings, the radial and axial load carrying capacity as well as the security against ring breakage has been increased, while the bearing temperature has been reduced. This has given higher operational security and also higher cost-effectiveness.

–High Quality Material:

–GCr15/Stainless Steel

–German grinding process secondary tempering stability.

–The whole series of high-precision production P6 P5 level

213 series: from 21305 to 21320

222 series: from 22205 to 22230

223 series: from 22308 to 22322

Special Vibrating Screen Bearing

Higher cost-effectiveness and operational security with Long-life

WZA spherical roller bearings have proved highly effective wherever high loads are present and there is a need to compensate for shaft deflections and misalignment of bearing seats. The previous designs of spherical roller bearings were already characterized by high performance capacity. This has now been surpassed to a significant degree by WZA Special Vibrating Screen Bearing developed in accordance with the new concept.

–High Quality Material:

–GCr15/GCr15SiMn/G20Gr2Ni4A

–Heat treatment of Bainite

–German grinding process secondary tempering stability.

–The whole series of high-precision production P6 P5 level

213 series: from 21305 to 21340

222 series: from 22205 to 22252

223 series: from 22308 to 22352

230 series: from 23020 to 23044

231 series: from 23120 to 23140

232 series: from 23218 to 23240

New Spherical Roller Bearing EX Type

The range of WZA spherical roller bearings EX comprises eight series. The smallest bore diameter is 20 mm, the largest outside diameter is 1 220 mm. Narrow bearings with a low cross- section, for example of series 230, allow high speeds and require little mounting space. For special operating conditions, we supply special designs of spherical roller bearings EX. For oscillating loads, special spherical roller bearings of series N223..-EX with restricted dimensional tolerances and increased radial internal clearance are used. In contrast, wide bearings with a high cross-section, for example of series 223, have a very high load carrying capacity. We supply spherical roller bearings EX both with a cylindrical and with a tapered bore. As a result, there are several options for locating the bearings on the shaft, see also the section Tapered bore.